bmvit 327120 0060 10 anp micropile sas 550 english

BMVIT-327.120/0060-II/ST2/2010

specification sheet for approval (Translation from the German original has not been certified by any authorities)

Object of approval: ANP – Micropiles SAS 550 with load - bearing elements

made of reinforcing steel bar ARI-G-55 with diameters 20,

25, 26, 28, 30, 32, 36, 40 and 50 mm and S 555/700 diameter

63,5 mm with thread ribs (B550B) for temporary, semi-

permanent (extended short term) or permanent use

Approval holder: ANP - SYSTEMS GMBH

Christophorusstraße 12

5061 Elsbethen/Austria

Manufacturer of load STAHLWERK ANNAHÜTTE

bearing element and Max Aicher GmbH & Co. KG

thread components: 83404 Ainring-Hammerau/Germany

Manufacturer of micropile- ANP - SYSTEMS GMBH

specific components Christophorusstraße 12

and corrosion protection: 5061 Elsbethen/Austria

External quality control: TVFA GmbH TU Wien

Area of validity: Austrian Republic

Road Administration

Reference: ÖNORM EN 14199: 2005

Execution of special geotechnical construction work (special

civil engineering, foundations construction / foundation

engineering) - piles with small diameters (micropiles)

GZ: BMVIT-327.120/0008-II/ST2/2009

Stahlwerk Annahütte:

hot rolled, hardened and tempered reinforcing steel with

left-hand threads ARI-G-55 with diameters 12, 14, 16, 20, 25,

26, 28, 30, 32, 36, 40 and 50mm according to

ÖNORM B 4200-7 (BSt 550) ductility / tensile properties

Agt 5% according to ONR 24200-7

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

Reference: GZ: BMVIT-327.120/0017-II/ST2/2009


hot rolled, hardened and tempered reinforcing steel with

left-hand threads S 555/700 diameter 63,5 mm according to

ÖNORM B 4200-7 (Bst 550) ductility / tensile

properties Agt 5% according to ONR 24200-7

GZ: BMVIT-327.120/0002-II/ST2/2009


threaded sleeve joints and threaded anchorage / anchorage

couplers for reinforcing steel ARI-G-55 with thread ribs, nominal

diameters 12, 14, 16, 20, 25, 26, 28, 30, 32, 36, 40 and 50 mm

based on ISO/FDIS 15835-1,2 and ÖNORM B 4200-7 and

respectively ONR 24200-7

GZ: BMVIT-327.120/0018-II/ST2/2009


threaded sleeve joints and threaded anchorage / anchorage

couplers for steel bars S 555/700 (Bst 550) with thread ribs,

nominal diameter 63,5mm based on ISO 15835-1,2 and

ÖNORM B 4200-7 and ONR 24200-7

The approval comprises 12 pages and 17 annexes.

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

I General Terms

1 This approval certificate is proof of the usability and applicability of the object of approval in accordance with the state building regulations (BMVIT, Federal Ministry for Transport, Innovation and Technology). The approval is granted and on the basis of non-harmonized technical specifications and without prejudice to third party rights

2 The approval holder is responsible for the building product´s conformity with the ap-proval and data sheet for the approval and guarantees any assured properties.

3 The approval refers only to the approval holder´s and manufacturer´s building product.

4 The BMVIT, Federal Ministry for Transport, Innovation and Technology is authorized to check at the license holder´s expense whether the regulations/provisions of this ap-proval and the data sheet are complied with.

5 The approval is not granted irrevocably. Provisions may be amended due to new techni-cal findings and standards.

6 The approval certificate may only be copied in its entirety. Texts and drawings in adver-tising brochures may not contradict the approval certificate.

II Special Terms

Contents

1 General 2 Reference standards 3 Description of the micropile system 4 Field of application 5 Construction material and construction product

5.1 Micropile 5.1.1 Properties and classification of the load bearing element 5.1.2 Requirements concerning the load capacity of micropile system

5.2 Pile head 5.2.1 Pile head design 5.2.2 Load transfer on to the structure

5.3 Coupling 5.4 Grouting

6 Service life 6.1 Corrosion protection 6.2 Exposure to corrosion 6.3 Types of micropiles

6.3.1 Micropiles for short term use and semi-permanent use 6.3.2 Micropiles for permanent use 6.3.2.1 Micropiles with standard corrosion protection 6.3.2.2 Micropiles with double corrosion protection

7 Installation of micropiles 8 Inspections

8.1 Material tests 8.2 Load tests

17 annexes

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

1 General

The planning, dimensioning, construction, inspection and supervision of micropiles may only be carried out by companies with expertise, experience and qualified personnel.

Responsibilities for planning, dimensioning, construction, inspection and supervision have to be agreed on by contract for the implementation of a building project.

The manufacturer guarantees that the micropiles and the corrosion protection are consistent with the approval.

2 Reference standards

ÖRNOM EN 14199: 2005 Execution of special geotechnical construction work (special civil engineering, foundations construction/ foundation engineering) - piles with small diameters (micropiles)

ÖNORM EN 1990: 2003 Eurocode – Basis of structural design

ÖNORM EN 1997-1: 2004 Eurocode 7 – Geotechnical design - Part 1: General rules

ÖNORM B 4707: 2010 Steel for the reinforcement of concrete - Requirements, classification and conformity assessment

ÖNORM EN 1992-1-1: 2005 Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings

ISO 15835-1,2: 2009 Steels for the reinforcement of concrete – Reinforcement couplers for mechanical splices of bar

Part 1: Requirements

Part 2: Test methods

ÖNORM EN ISO 15630-1: 2002 Steel for the reinforcement and prestressing of concrete - Test methods - Part 1: Reinforcing bars, wire rod and wire

ETAG 013: 2002 Guideline for European technical approval of post-tensioning kits for prestressing of structures

ÖNORM EN 206-1: 2001 Concrete - Part 1: Specification performance, production and conformity

ÖNORM EN ISO 1461: 2000 Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods

ÖNORM EN 1537: 2000 Execution of special geotechnical work - Ground anchors

ÖNORM EN 12501-1,2: 2003 Protection of metallic materials against corrosion - Corrosion likelihood in soil

Part 1: General

Part 2: Low alloyed and non alloyed ferrous materials

ÖNORM EN ISO 9001: 2000 Quality management systems - Requirements

ÖNORM EN 445: 2008 Grout for prestressing tendons - Basic requirements

ÖNORM EN 446: 2008 Grout for prestressing tendons - Test methods

ÖNORM EN 447: 2008 Grout for prestressing tendons - Grouting procedures

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

3 Description of the micropile system

The load-bearing element of the ANP – Micropile SAS 550 is a throughout screwable left-hand

reinforcement steel bar with thread ribs ARI-G-55 with diameters 20, 25, 26, 28, 30, 32, 36, 40 and 50mm and S 555/700, diameter 63,5mm

for geotechnical applications.

The use of the reinforcement steel including the screwed coupler and anchorage is derived from the existing BMVIT approval of the system. The reinforcement steel is classified as an B550B according to ÖNORM B 4707.

The micropile is put into the center of a pre-drilled borehole and is then grouted with cement grout.

The pile head is made up of a straight square plate locked with nuts (anchor nut / lock nut) or it’s made up of a nut-locked cylindrical cast steel anchor piece. Coupling is possible with a coupler with or without lock nut.

Service life of micropile systems:

- micropiles for temporary use (service life max. 2 years)

- micropiles for extended short term use in consideration of corrosionrate (service life 2 - 50 years)

- permanent micropiles (service life up to 100 years) with standard corrosion protection by means of cement mortar covering

- permanent micropiles (service life up to 100 years) with double corrosion protection by means of tubing according to ÖNORM EN1537

Following annexes describe further details of the micropile system:

Annex 1: drawing of micropile system for temporary use, pile head options and couplings

Annex 2: drawing of micropile system for semi-permanent use, pile head options and couplings

Annex 3: drawing of permanent piles with standard corrosion protection (cement mortar covering), pile options and couplings

Annex 4: drawing of permanent piles with double corrosion protection according to ÖNORM EN 1537, pile head options and couplings

Annex 5 pile head options with alternative anchorage (anchor piece with nut lock)

Annex 6: center distance and edge distance of the micropile system with pile head plate and anchor piece, additional reinforcement, torque for coupling and anchorage

Annex 7 and 8: data for steel bar with thread ribs ARI-G-55, diameters 20 - 50mm and S555/700, diameter 63,5mm

Annex 9: loss of load capacity of the micropile due to corrosion

Annex 10 to 15: accessories and components of corrosion protection with dimensions and material grade

Annex 16 and 17: production of micropiles, factory-made of corrosion protection, transport and storage, installation

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

4 Field of application

Pile foundations serve to transfer building loads to deeper layers of ground and limitation of deformations according to the principles for the execution of geotechnical works. The piles may be used only for axial tension, pressure and alternating load.

The execution principles for construction are stated in ÖNORM EN 14199 and comprise information about pile foundation, soil examination, construction material and products, dimen-sioning as well as the installation of piles including tests and supervision.

The principles according to ÖNORM EN 1990 are to be considered of structural design be adhered to ÖNORM EN 1997-1 contains further geotechnical dimensioning rules.

Compliance with following standards is necessary:

- The foundation has to be calculated with regard to load transfer into the pile head (additional reinforcement, punching).

- With soils which allow lateral deflection of the pile, the buckling safety has to be clarified either by calculation or test loading.

5 Construction material and construction product

5.1 Micropile

5.1.1 Properties and classification of the load bearing element

A heat-treated concrete reinforcing steel bar from the rolling heat ARI-G-55, diameters 20-50 and S555/700, diameter 63,5, with left-hand thread ribs may be used as a load bearing element reinforcement steel B550B according to ÖNORM B 4707.

Weldability and bending property are not relevant for the intended geotechnical use.

Please find the parameters of the reinforcing steel in annex 7 and 8. The reinforcement steel is classified as B550B according to ÖNORM B 4707. The reinforcement steel with thread ribs can also be used for a lower steelgrade than B550B. The reinforcing steel bars fulfill the requirements of ÖNORM EN 1992-1-1, see appendix C.

The requirements concerning ”bond effect” in the pile length of the load bearing element are fulfilled by thread ribs of the steel bar.

For extended short term service life of the micropile system, a hot-dip galvanized surface coating of the steel bar may be carried through according to ÖNORM EN ISO 1461.

5.1.2 Requirements concerning the load capacity of micropile system

The following requirements have to be complied with:

- The micropile´s tensile load capacity, consisting of the components pile (reinforcement steel B550B), pile head and coupler, has an efficiency of 100% in respect of the charac-teristic ultimate load of the support load bearing element according to ÖNORM EN 14199. In case of a failure the system shows ductile forming.

- In case of an anchorage or coupler failure the elongation value measured at the steel bar must not be below Agt = 3,5 %.

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

- The rated value for the micropile´s ultimate limit state is, according to ÖNORM EN 1992-1-1, to be set with a partial safety factor of 1,15 when reaching a yield strength Fp0.2. The soil conditions have to be measured in accordance with ÖNORM EN 1997-1. ÖNORM EN 1990 applies to the soil support capability.

- With a torque moment - according to annex 6 - under tensile load of the anchorage´s or coupler´s ultimate limit state a slip 0,1 mm is kept according to ISO 15835- 1. A slip has to be set at up to 1,0 mm on a non-torqued coupler, with a pile diameter of 63,5mm up to 2,0 mm.

As fatigue strength parameter a stress range Rsk for load N = 2 × 106 cycles with a stress value of 0,6 Rp0.2 is proven:

- Ø 20 to 32 mm: 90 N/mm²

- Ø 36 and 40 mm: 80 N/mm²

- Ø 50 and 63,5 mm: 60 N/mm²

- When a corrosion rate is intended then the loss of cross section has to be considered with proof of load capacity. Please refer to annex 9.

5.2 Pile head

5.2.1 Pile head design

The pile head design is either made up of pile head plate fixed by nuts (anchor nut / locknut) or

a torqued cylindrical anchor piece with or without bursting reinforcement. When an anchor piece

is used, a additional bond length has to be complied with according to annex 5.

The connection from the micropile in the foundation body demands both with semi-permanent

and permanent piles with standard corrosion protection a pile neck sheating by means of a

plastic corrugated sheathing to seal a possible construction joint.

Details about the corrosion protection system´s parameters, accessories, components and

materials see annex 10 to 14. The torque moments are listed in annex 6.

5.2.2 Load transfer on to the structure

Load transmission from the foundation body to the pile head can be carried out with or without

additional reinforcement (bursting reinforcement). Design criteria are the requirements accord-

ing to ETAG 013. With the following values an efficiency of 110% with additional reinforcement

and an efficience of 130% without additional reinforcement is achieved related to the character-

istic breaking force of the load bearing element:

- concrete compressive strength at time of applied load 25 N/mm² (cube 150 mm)

- minimum concrete quality C 20/25 according to ÖNORM EN 206-1

- center distance and edge distance of the micropile system with end anchorage by means pile head plate or anchor piece, with or without additional reinforcement (bursting reinforcement) according to annex 6

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

5.3 Coupling

The load bearing element can be coupled by couplers. The coupler has to be locked with nuts in case of tensile and alternating load. In case of compression load the coupler has to be secured against unscrewing with heat shrink sleeve.

When temporary and permanent piles with sheathing in accordance with ÖNORM EN 1537 are used, locking might be dispensed with in case of tensile loads. A locking device to prevent unscrewing is required.

Data concerning coupler parameters and material see annex 12.The torque moments are listed in annex 6.

5.4 Cement grout

An outer cement grout cover of installed micropiles to the borehole wall is conditional of manu-facturing. ÖNORM EN 1992-1-1 comprises approaches for the required minimum covering al-lowing for the aggressiveness classes (see ÖNORM EN 206-1).

Spacers are used to position the pile concentrically. Cement grout is used to build the outer body (see ÖNORM EN 14199). The water-cement ratio has to be adapted to the building site conditions.

The corrosion protection of the permanent pile with double corrosion protection (DCP) is build up by a corrugated sheathing with minimum wall thickness 1,0 mm and an inner cement grout cover between corrugated sheathing and pile of at least 5 mm. This equates the corrosion protection of the permanent anchor´s bond length according to ÖNORM EN 1537. The pile is positioned concentrically either with a cord or a mat spacer.

Both the corrosion protection and the inner cement grout cover are applied in the factory. The cement grout used complies with the standards of ÖNORM EN 445, ÖNORM EN 446 and ÖNORM EN 447.

6 Service life of the micropile construction

6.1 Corrosion protection

The micropile system at hand uses the following methods to reach the desired service life:

- no separate measures for temporary use (max. 2 years) - allowance for corrosion rate in case of limited use for semi-permanent service life - surface coating by hot dip galvanizing - encapsulation is due to the system by designing an grout body (standard corrosion

protection) for permanent use with the required minimum covering - sheathing (double corrosion protection - according to ÖNORM EN 1537) for

permanent use

Further requirements concerning the corrosion protection of semi-permanent micropiles and micropiles with standard corrosion protection have to be derived from a critical assessment of the building and ambient conditions. Even with an early breakdown of single elements the bearing capacity of the micropile foundation has to be assured. The application of single elements is not intended.

Corrosion protection by means of corrosion rate may only be used with a statistically secured number of elements (redundant system - to increase the reliability of the system).

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

6.2 Exposure to corrosion

To evaluate exposure to corrosion of metallic material in soil according to ÖNORM EN 12501 - 1,2 shall be used. Exposure to corrosion is classified as:

- low

- medium

- high

The most important physical and chemical parameters of soil and foundation materials are dealt with in ÖNORM EN 12501-2. Appendix B of the norm contains detailed data for soil classification.

An evaluation of the different exposures to corrosion is done by means of an informative table with essential soil parameters. These parameters are the basis for the indication of size con-cerning the respective corrosion rate of the micropile.

Criteria for exposure to erosion in soils

soil parameters exposure to corrosion in soil

Low medium high

ventilation moderate to very good

bad to moderate

very bad to bad

soil properties / composition

predominantly sand, gravel, weathered rock (coarse or medium dis-

persed/mixed: rock, sand, clay)

high percentage of, silt (medium dispersed to

finely dispersed)

High percentage of clay (finely dispersed) industrial waste,

de-icing salt

soil moisture low

(drainageable) generally medium

(moist) generally high,

floodplain

neutral salt concentration

Low Possibly

increased Possibly high

ph-value 5 to 8 5 to 8 5 to 8

specific resistance [ m]

> 70 10 to 70 < 10

with ph- values < 5 and > 8 an upgrade is necessary:

low medium

medium high

high limited use DCP according ÖNORM EN 1537

6.3 Types of micropiles

6.3.1 Micropiles for short term use and semi-permanent use

Annex 1 contains a schematic drawing of the temporary micropile. The micropile has to be center positioned in the borehole. For temporary use no further measures for corrosion protection have to be taken. If exposure to corrosion is high, corrosion is avoided by a cement grout cover 15 mm.

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

The coupler must be secured against unscrewing by means of a heat shrink sleeve under tensile and compression load. Optionally, a contact coupler may be used only under compres-sion load. Under alternating load the coupler has to be secured with lock nuts.

Annex 2 contains a schematic drawing of the semi-permanent micropile. Pile neck sheathing and plastic corrugated sheathing are used for the connection between the micropile and the foundation body.

The coupler must be secured with lock nuts under tensile and alternating load. (a fixing with lock nuts is required). Under compressive load the coupler has to be fixed against unscrewing by means of a heat shrink sleeve. Optionally, a contact coupler may be used only under compres-sion load.

The planned service life and the soil´s exposure to corrosion determine the size of the corrosion rate. The cement grout cover is at least 15 mm.

The reference values for the corrosion of the micropile in soil are derived from results of long-term storage. The corrosion rate is stated for a low, medium and high exposure to corro-sion and a service life of 2, 7, 30 and 50 years. The Rounding parameter is 0,1 mm.

The corrosion rates mentioned here for blank steel and galvanized steel are not relevant in this case because the micropile is center positioned in the borehole and then grouted with cement mortar. However, the corrosion rates are mentioned here are a relevant output variable for the corrosion of steel.

With consideration of a cement grout cover of at least 15 mm a slowing down of the carbonation process dependent on exposure to corrosion in soil of steel is achieved and the corrosion rate is reduced.

Reference value for corrosion rate under soil aggressiveness

service life in years pile type

corrosion rate in mm under exposure to corrosion

low medium high

2

A B A+C B+C

0 0 0 0

0 0 0 0

0,2 0 0 0

7

A B A+C B+C

0,2 0 0 0

0,2 0 0 0

0,5 0,4 0 0

30

A B A+C B+C

0,4 0

0,2 0

0,6 0,2 0,4 0

DCP

50

A B A+C B+C

0,5 0,2 0,4 0

DCP DCP

A blank steel, not grouted

B galvanized steel, zinc coating layer thickness 150µm, not grouted

C cement grout cover 15 mm

DCP double corrosion protection according to ÖNORM EN 1537

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

Annex 9 contains details concerning the loss of a micropile´s load-bearing capacity due to corrosion. Therewith also the corrosion at the coupling is covered when the coupler´s cement grout cover is 15 mm.

6.3.2 Micropile for permanent use

6.3.2.1 Micropile with standard corrosions protection by means under cement grout cover

Annex 3 contains a drawing of the permanent micropile with standard corrosion protection. The pile neck has to be provided with a pile neck casing as with the semi-permanent pile. For the coupling the same set up shall be applied as with the semi-permanent micropile.

The permanent pile´s corrosion protection is achieved by means of encapsulation in a grout body. The required cement grout cover is dependent on soil class and is specified in relevant european geotechnical standards. The crack width under tensile load is limited to 0,2 mm.

For micropiles with coupling the required minimum cement grout cover shall correspond to the coupler´s external diameter (including heat shrink sleeve).

Reference values for the required minimum covering

exposure to corrosion in soil

cement grout cover in mm

compression load tension load

low 25 35

medium 30 40

high DCP according to ÖNORM EN 1537

6.3.2.2 Micropile with double corrosions protection (DCP) according to ÖNORM EN 1537

Annex 4 contains a schematic drawing of the permanent micropile with DCP according to

ÖNORM EN 1537. The essential corrosion protection components are:

pile shaft: Corrugated sheathing 1,0 mm with internal cement grout thickness 5 mm - distance between load - bearing element and corrugated

sheathing.

External cement grout covering 10 mm to the borehole wall. The ground - facing pile end is enclosed by a plastic cap.

coupling: The coupler has to be torqued with nuts only with alternating load. With compression load a contact coupler may be used instead.

pile neck: The load - bearing element is sealed against the corrugated sheathing with tape via an end or injection cap. The corrugated sheathing of the pile shaft is lead into the foundation body.

ANP – SYSTEMS GMBH _________________________________________________________________________________________________________________________________________

7 Installation of micropiles

Instructions for installation of micropiles and for the production of the factory-made corrosion protection can be found in annex 15 and 16.

Micropiles may only be installed by professional staff in compliance with the listed procedural requirements and installation instructions of the approval holder.

8 Inspections

8.1 Material tests

The manufacturer of micropiles has to carry out internal production and quality control regulated

by ÖNORM EN ISO 9001.

These norms refer to the:

- production of micropile components

- production of the corrosion protection system

Internal and external quality and production control of the micropile components are regulated

by BMVIT approvals (see reference approvals on page 1 and 2.

The production of the pile head plate may also be carried out by the manufacturer of the corrosion protection system according to specific dimensions. The manufacturer is then involved in internal quality control for the plates.

The external control has to be carried out by an accredited inspection authority based on a supervision contract. Additionally, the scope of internal control is specified in the supervision contract. The approval holder and the external inspection authority have to conclude a supervision contract. External control has to be executed once a year. The results have to be submitted in a report.

8.2 Load tests

Load tests have to be made and documented at the building site where required in accordance

with ÖNORM EN 14199.

AB

0 0

2

0,20 00 0

0 0

00

0

Ø

1

11

11

13

1

8

3

14

1

11

6

11

13

1

8

3

14

1

11

6

11

13

1

5

5

3

14

t1R

t1R

t1R

2 / 2a

4 / 4a

4 / 4a

2 / 2a

2 / 2a

2 / 2a

compression load alternating loadtension load

min. borehole - Ø

26

532025 59

28303236405063,5

646671758699

6670757580829095110132

6062

withcoupler

without coupler

micropile for temporary use

[mm]

low medium high

up to

service life

in years

steel bar

6 or 7

corrosion rate in mm

under exposure to corrosion

type of

pile

A - blank steel, not groutedB - galvanized steel, zinc coating layer thickness 150 µm, not groutedC - cement grout covering 15 mm

A + CB + C

t1R

150 mm [ Ø 20 - 32 ]

t1R

200 mm [ Ø 40 - 63,5 ]

1 steel bar with thread ribs

2 hex nut

2a hex nut - cast iron

3 pile head plate

4 lock nut, short

4a lock nut, short - cast iron

5 lock nut, long

6 coupler

7 contact coupler

8 heat shrink sleeve

11 spring basket spacer

13 cement grout cover

14 additional reinforcement

ANP - SYSTEMS

GmbHAnnex 1

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribstemporary micropile

1

11

11

13

1

17

8

3

14

1

11

6

11

13

1

17

3

14

1

11

6

11

13

1

5

5

3

14

17

t1R

t1R t1R

2 / 2a

4 / 4a

4 / 4a

2 / 2a

2 / 2a

2 / 2a

4 / 4a

4 / 4a


6 or 7

service life

in years

26

532025 59

28303236405063,5

646671758699

6670757580829095110132

6062

Ø

min. borehole - Ø

withcoupler

without coupler[mm]

steel bar

AB

A+CB+C

0,2 0,2

2 - 7

0,50 00 0

0 0

0,40

0

AB

A+CB+C

0,4 0,6

7 - 300 0

0,2 0,4

0 0AB

A+CB+C

0,5

30 - 500,20,4

0

DCP

DCP

DCP

low medium high

corrosion rate in mm

under exposure to corrosionmicropile for semi-permanent use

type of

pile

1 steel with thread ribs

2 hex nut

2a hex nut - cast iron

3 pile head plate

4 lock nut, short

4a lock nut, short - cast iron

5 lock nut, long

6 coupler

7 contact coupler


11 spring basket spacer

13 cement grout cover

14 additional reinforcement

17 pile neck sheathing

t1R

150 mm [ Ø 20 - 32 ]

t1R

200 mm [ Ø 40 - 63,5 ]

A - blank steel bar, not groutedB - galvanized steel, zinc coating layer thickness 150 µm, not groutedC - cement grout covering 15 mmDCP - double corrosion protection acc. to ÖNORM EN 1537

ANP - SYSTEMS

GmbHAnnex 2

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribssemipermanent micropile

73 86 93 106 83 96 103 11620

79 90 99 110 89 100 109 12025

80 95 100 115 90 105 110 12526

82 95 102 115 92 105 112 12528

84 100 104 120 94 110 114 13030

86 102 106 122 96 112 116 13232

91 110 111 130 101 120 121 14036

95 115 115 135 105 125 125 14540

106 130 126 150 116 140 136 16050

119 152 139 172 129 162 149 18263,5

25

30

35

40

t1R

1

11

11

13

1

17

8

3

14

t1R

1

11

6

11

13

1

5

5

17

3

14

t1R

1

11

6

11

13

1

17

3

14

2 / 2a

4 / 4a 2 / 2a

4 / 4a 2 / 2a

2 / 2a

4 / 4a

4 / 4a


6 or 7

DCP according to ÖNORM EN 1537

tension loadcompression load

low

medium

high

withoutcoupler[mm]

withcoupler[mm]

withoutcoupler[mm]

withcoupler[mm]

withoutcoupler[mm]

withcoupler[mm]

withoutcoupler[mm]

withcoupler[mm]

compression tension compression tension

min. borehole - Ø

permanent micropile for service life up to 100 years

low exposure to corrosion medium exposure to corrosion

exposure to

corrosion in soil

min. grout covering in mm

Ø

steel bar

[mm]

t1R

150 mm [ Ø 20 - 32 ] t1R

200 mm [ Ø 40 - 63,5 ]

1 steel bar with 6 coupler

thread ribs 7 contact coupler

2 hexnut 8 heat shrink sleeve

2a hexnut - cast iron 11 spring basket spacer

3 pile head plate 13 cement grout cover

4 lock nut, short 14 additional

4a lock nut, short - cast iron reinforcement

5 lock nut, long 17 pile neck sheathing

ANP - SYSTEMS

GmbHAnnex 3

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribspermanent micropile with standard corrosion protection

t1Rt1R

t1R

1

3

14

16

15

1

3

1

3

16

15

14 14

16

15

13

11

8

11

10

1615

13

11

8

11

10

1615

13

11

8

11

10

1615

6 6

5

2 / 2a

4 / 4a

4 / 4a

2 / 2a

2 / 2a

2 / 2a

5

1

9

1313

1

9

13

1

9


6 or 7

26

2025

28303236405063,5

Ø

min. borehole - Ø

withcoupler

without coupler[mm]

steel bar

7070 70

7070

7070707676

7676

8585

85

100120 125

10388

micropile for permanent use

t1R

150 mm [ Ø 20 - 32 ]

t1R

200 mm [ Ø 40 - 63,5 ]

1 steel bar with thread ribs 8 heat shrink sleeve

2 hex nut 9 corrugated sheathing

2a hex nut - cast iron 10 inside spacer

3 pile head plate 11 spring basket spacer

4 lock nut, short 13 cement grout cover

4a lock nut, short - cast iron 14 additional reinforcement

5 lock nut, long 15 injection- and endcap

6 coupler 16 adhesive tape

7 contact coupler

ANP - SYSTEMS

GmbHAnnex 4

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribspermanent micropile with DCP - double corrosion protection

14

1

17t1R

1

17t1R

14

1

17t1R

14

12

12 12

LV

LV

LV

4 / 4a

4 / 4a 2 / 2a

14

1 1

t1R

14

1

t1R

14

12

12 12

9 99

151515

10

13

10

13

10

13

LV

LV

LV

t1R

2 / 2a4 / 4a

4 / 4a

16 16 16

26

2025

28303236405063,5

Ø

[mm]

200250260280300320360400500635

tension load compression load alternating load

tension load compression load alternating load

permanent micropile with - DCP(tubing acc. to ÖNORM EN 1537)

* min. concrete strenght 25N/mm²

additional bond lenght *

Lv 10 ds[mm]

steel bar

LV - additional bond length

LV - additional bond length

t1R

150 mm [ Ø 20 - 32 ]

t1R

200 mm [ Ø 40 - 63,5 ]

semipermanent- and permanent micropile with standard corrosion protection

1 steel bar with thread ribs 12 anchor piece

2 hexnut 13 cement grout cover

2a hexnut - cast iron 14 additional reinforcement

4 lock nut, short 15 injection- and endcap

4a lock nut, short - cast iron 16 adhesive tape

9 corrugated sheathing 17 pile neck sheathing

10 inside spacer

note: - for temporary micropiles no pile neck sheathing is neccesary acc. to 17

- embedment length t1R

is valid for pile neck sheathing as well as

micropiles with DCP

ANP - SYSTEMS

GmbHAnnex 5

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribspile head design with additional bond length

1 ) distances is vaild for anchor piece and for anchorage

2 ) without additional reinforcement the value for center - and edge distance is to double

c...concrete cover of constructive reinforcement according to valid standards, regulations at the

place of application and exposure classes according to ÖNORM EN 206-1 where required

torquecoupling and anchorages

center - and edge distances, additional reinforcementconcrete compressive strength at time of aplied load 25 N/mm² (cube 150 mm)min. concrete quality C 20/25 acc. to ÖNORM En 201-1

mechanical anchorage with additional reinforcement, (reinforcing steel, Re 500N/mm²)

type load bearing element

Ø[mm]

torque[kNm]

20 0,4

25 0,7

26 0,8

28 1,0

30 1,2

32 1,6

36 2,7

40 3,7

50 8,0

anchorage 63,5 8,0

coupling 63,5 12,0

coupling / anchorage

quantityn

Ø[mm]

a[mm]

c[mm]

20 130 3 6 100 30

25 150 4 6 130 40

26 150 4 6 130 40

28 165 4 6 145 40

30 180 3 8 155 45

32 180 3 8 155 50

36 220 3 10 180 45

40 250 3 10 220 45

50 270 5 10 250 45

63,5 380 4 16 350 70

load bearingelement

Ø[mm]

center -

distance 1)

A[mm]

edge -

distance 1)

R[mm]

additional reinforcement 2) (BSt 550)

A × 0,5 + nom c

ANP - SYSTEMS

GmbH

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscenter- and edge distances, additional reinforcement, torque

Annex 6

R c bs

a

dh

dv

a

A

cross section

1) tolerance to nominal mass ± 4,5%

detail A


geometry

nominal dimensions and mass, rib geometry

dh

[mm]

dv

[mm]

heightmin. a[mm]

width

bs

[mm]

pitchc

[mm]

angle

[grad]

radiusR

[mm]

20 2,47 314 19,5 19,1 1,0 4,8 10,0 81,5 2,0

25 3,85 491 24,4 23,9 1,3 5,8 12,5 81,5 2,0

26 4,17 531 25,4 24,9 1,4 6,0 13,0 81,5 2,0

28 4,83 616 27,3 26,8 1,5 6,7 14,0 81,5 2,5

30 5,55 707 29,3 28,8 1,7 7,1 15,0 81,5 2,5

32 6,31 804 31,2 30,9 1,8 7,6 16,0 81,5 2,5

36 7,99 1020 35,2 34,7 1,9 8,5 18,0 81,5 2,5

40 9,87 1260 39,1 38,5 2,1 9,5 20,0 81,5 2,5

50 15,40 1960 48,9 48,3 2,3 12,0 26,0 81,0 2,5

63,5 24,86 3167 62,4 61,6 2,7 10,8 21,0 84,0 4,0

nominaldiameter

ds

[mm]

Mass

per meter1)

G[kg/m]

nominalcross

sectionA

[mm²]

core diameter threaded ribs (left handed)

ANP - SYSTEMS

GmbHAnnex 7

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribsnominal dimensions and mass, rib geometry


properties and requirements

nominaldiameter

characteristic

ultimate force 5)

ds Fm

[mm] [kN]

20 187

25 292

26* 316

28 367

30* 421

32 478

36* 605

40 747

50 1167

63,5 1882

Re N/mm²

Rm/Re -

Agt %

N/mm²

560

691

1080

1742

5) acc. to yield strength ratio

550

1,08

5,0

487

300maximum stress max

939

601

1515

elongation at ultimate load 3)

characteristic yield strength 1), 2)

270

292

339

389

442

* dimension only available on request

1) 5% - fractile value2) Re corresponds to Rp0,2 – yield strength3) 10% - fractile value

120

100

fatigue range for 2×106

cyclesN/mm²

4) partial factor for steel acc. to ÖNORM EN 1992-1-1

steel barsØ > 36 mm

steel barsØ 20 bis 36 mm

ratio 3)

design resistancevalue of micropile

R = Fe /1,15 4)

characteristicyield force

Fe

[kN]

338

384

295

150

235

254

[kN]

173

ANP - SYSTEMS

GmbHAnnex 8

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribsmechanical - technological characteristics acc. ÖNORM B 4707


table loss of load capacity under exposure of corrosion

Fp0,2 yield strength under exposure for corrosion R design resistance value of micropile * dimension only available on request

0,0 0,2 0,4 0,5 0,6

Fp0,2 kN 173 166 160 156 153

R kN 150 144 139 136 133

Fp0,2 kN 270 261 253 249 245

R kN 235 227 220 217 213

Fp0,2 kN 292 283 274 270 266

R kN 254 246 238 235 231

Fp0,2 kN 339 329 320 315 310

R kN 295 286 278 274 270

Fp0,2 kN 389 378 369 364 358

R kN 338 329 321 317 311

Fp0,2 kN 442 431 421 415 410

R kN 384 375 366 361 357

Fp0,2 kN 560 547 535 529 523

R kN 487 476 465 460 455

Fp0,2 kN 691 677 664 657 650

R kN 601 589 577 571 565

Fp0,2 kN 1080 1063 1046 1037 1029

R kN 939 924 910 902 895

Fp0,2 kN 1742 1720 1698 1687 1677

R kN 1515 1496 1477 1467 1458

Ø 40

Ø 50

Ø 63,5

Ø 26*

Ø 28

Ø 30*

Ø 32

Ø 36*

micropile valuecorrosion rate in mm

Ø 20

Ø 25

ANP - SYSTEMS

GmbHAnnex 9

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribsloss of load capacity under exposure of corrosion

Ø 63,5

LS

W

Ø

Ø 20 - 50 Ø 63,5

LL

SW

Ø

Ø 20 - 50

LS

WS

W

SW

Ø

L

2 hexnut material: Ø 25 - 50 : S355J2

Ø 63,5 : 20MnV6+U acc. to ÖNORM EN 10025

2a hexnut - cast iron material: Ø 40 - 63,5: EN-GJS-500-7 acc. to ÖNORM EN 1563,

G34CrMo4 acc. to ÖNORM EN 10293

4 lock nut, short material: S355J2 acc. to ÖNORM EN 10025

load bearing

elementØ

[mm]SW

[mm]L

[mm]Ø

[mm]

20 32 20 -

25 41 20 -

26 41 25 -

28 41 25 -

30 50 30 -

32 50 30 -

36 55 30 -

40 60 35 -

50 80 50 -

63,5 90 75 102

load bearing element

Ø[mm]

SW[mm]

L[mm]

Ø[mm]

20 36 45 -

25 41 50 -

26 46 50 -

28 46 55 -

30 50 60 -

32 55 60 -

36 60 65 -

40 65 70 -

50 80 90 -

63,5 100 115 108


Ø[mm]

SW[mm]

L[mm]

Ø[mm]

40 65 70 85

50 80 85 100

63,5 100 115 125

ANP - SYSTEMS

GmbHAnnex 10

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: hexnut, lock nut short

Ø 20 - 50 Ø 63,5

L L

SW

SW

Ø

L

L

Ø

SW

SW

Ø

4a lock nut, short - cast ironmaterial: Ø 40 - 63,5: EN-GJS-500-7 acc. to ÖNORM EN 1563

GE 300, G34CrMo4 acc. to ÖNORM EN 10293

5 lock nut , long material: S355J2 acc. to ÖNORM EN 10025

12 anchor piece material: EN-GJS-500-7

acc. to ÖNORM EN 1563


Ø[mm]

SW[mm]

L[mm]

Ø[mm]

40 60 35 69

50 80 50 92

63,5 90 75 104


Ø[mm]

SW[mm]

L[mm]

Ø[mm]

20 32 40 -

25 41 40 -

26 41 45 -

28 41 45 -

30 50 50 -

32 50 50 -

36 55 55 -

40 60 65 -

50 80 80 -

63,5 90 115 102


Ø[mm]

SW[mm]

L[mm]

Ø[mm]

20 36 40 65

25 41 45 70

26 41 50 90

28 46 50 90

30 50 55 95

32 50 60 100

36 60 65 110

40 65 70 120

50 80 85 150

63,5 100 115 250

ANP - SYSTEMS

GmbHAnnex 11

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: lock nut short, lock nut long, anchor piece

Ø

L

Ø

a

a

c

Ø

L

3 pile head plate material: S235JR acc. to ÖNORM EN 10025

6 coupler material: S355J2 acc. to ÖNORM EN 10025-2

7 contact coupler material: S355J2 acc. to ÖNORM EN 10025-2


Ø[mm]

L[mm]

Ø[mm]

20 105 36

25 115 40

26 120 45

28 125 45

30 135 50

32 140 52

36 150 60

40 160 65

50 200 80

63,5 260 102


Ø[mm]

L[mm]

Ø[mm]

20 70 32

25 80 36

26 80 36

28 85 40

30 90 45

32 90 45

36 110 50

40 120 52

50 160 65

63,5 200 90


Ø[mm]

a[mm]

c[mm]

Ø[mm]

20 70 10 25

25 70 10 30

26 70 10 33

28 100 12 33

30 120 20 36

32 120 20 40

36 150 30 44

40 150 30 47

50 190 45 58

63,5 245 50 70

ANP - SYSTEMS

GmbHAnnex 12

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: pile head plate, coupler, contact coupler

da di

L

L

Ø i

t


9 corrugated sheathing material: PVC-U acc. to DIN 8061/8062

material: PE acc. to DIN 8074/8075


Ø

Øi

bevor shrinking /after shrinking

tbevor shrinking /after shrinking

L

[mm] [mm] [mm] [mm]

63,5 115 / 34

min. 0,50 / min. 1,0as

required *

* overlapping heat shrink sleeve / corrugated sheating min. 7,5 cm bevor shrinking

95 / 29

20 - 32

36 - 50

75 / 22

min. da / min. di min. t L

[mm] [mm] [mm] [mm]

20

25

26

28

30

32

36

40

50 80 / 71 1,0

63,5 100 / 90 1,5


Ø

dimensions

as required

49 / 43 1,0

1,0

1,0

56 / 48

65 / 56

ANP - SYSTEMS

GmbHAnnex 13

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: heat shrink sleeve, corrugated sheating

A

sd

L

L1

L2

h

d

10 inside spacer material: PE-HD acc. to ÖNORM EN ISO 1872-1;2

PE - cord mat spacer

11 spring basket spacer material: PVC-U acc. to DIN 8061/8062

d × s min. A L d × s min. A L

[mm] [mm] [mm] [mm] [mm] [mm] [mm]

20 25 × 1,8 70

25

26

28

30

32

36

40

50 63 × 3,0 125 90 × 3,6 135

63,5 75 × 3,6 210 110 × 3,2 140


Ø

standard corrosion protection double corrosion protection

55 × 3,0

63 × 3,0

32 × 1,9

40 × 3,0

80175

270

270

125

100

75 × 3,650 × 3,0

h L1 L2quantityof ribs

[mm] [mm] [mm] [mm] n

40 6 112 124 3

50 8 132 124 3

63,5 11 218 166 5


Ø

dimensionsload bearing element

Ø

PE - cordmin. Ø

[mm] [mm]

63,5 9

620 - 50

ANP - SYSTEMS

GmbHAnnex 14

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: PE-cord, mat spacer, spring basket spacer

da di

L

alternative design

15 injection- and endcap

17 pile neck sheathing(plastic corrugated sheathing)

material: PVC-U acc. to DIN 8061/8062

material: PE acc. to DIN 8074/8075

min. da / min. di min. t L

[mm] [mm] [mm] [mm]

20

25

26

28

30

32

36

40

50 80 / 71 1

63,5 100 / 90 1,5


Ø

dimensions

49 / 43 1

60056 / 48 1

65 / 56 1

ANP - SYSTEMS

GmbHAnnex 15

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscomponents: injection- and endcap, pile neck sheating

ANP - SYSTEMS

GmbHAnnex 16

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribscorrosion protection

Corrosion protection by hot dip galvanising

The galvanising is done in galvanising plants according to ÖNORM EN ISO

1461. The average thickness of the zinc coating layer has to be at least 150 m.

Particular attention shall be paid to the threadability of accessories.

Permanent corrosion protection - DCP

The steel bar is cut to length and is provided with spacers by means of a

PE - cord or mat spacers and a corrugated sheathing on its entire length,

excluding the thread part for the pile head. At the pile foot an injection cap is

arranged and at the pile head a vent flap is fixed. A tape is used to seal it against

the corrugated sheathing.

If parts with sleeve joints are used, either vent flaps are mounted at both ends of

each piece, or a full length of bar is grouted and cut to pieces after hardening of

the grout.

The annulus between steel bar and corrugated sheathing is grouted with cement

on an inclined platform. The grouted micropile must not be removed from the

injection platform and loaded before 24h have passed, provided that suitable

temperature conditions for injection and hardening are given.

To ensure the centric position of micropile in the borehole, spring basket spacers

are mounted on the building site and, if required, post-grouting systems.

ANP - SYSTEMS

GmbHAnnex 17

ANP - Micropile SAS 550steel bar ARI-G-55 Ø 20-50 and steel bar S 555/700 Ø 63,5 with thread ribstransport, storage and installation

Transport and storage

Significant for the effectiveness of the permanent corrosion protection is that the

corrugated sheating is not damaged by incorrect handling during transport,

storage and mounting.

The micropiles have to be stored off-floor. The support points must be positioned

at an appropriate distance to avoid deflection and must not be sharp-edged.

The stacking of micropiles is only permissible either parallel, side-by-side or on

top of each other. The weight of micropiles must not result in the damage of the

lower layers of stacked micropiles.

Installation

The production of the borehole depends on the soil conditions and takes place

uncased, cased or partly cased. The borehole has to be cleaned properly for the

installation of a micropile.

An appropriate borehole diameter has to be chosen so that the micropile and the

spring basket spacer can be inserted without damaging the corrugated

sheathing, e.g. by sharp edges of the casing pipe. If necessary the diameter of

the drilling hole has to be adjusted to the coupler’s diameter.

Whenever a pile is transported to the borehole or when a pile is inserted,

deflections should be avoided. If a crane is used to transport the pile, a traverse

with multiple suspension points should be used.

When the pile is installed in parts, a coupling has to be fitted during installation. If

the micropile is used with alternating loads couplers must be locked with nuts.

For compressive loads a contact coupler can be used. In this case a heat shrink

sleeve must be used to assure the coupler is secured against unscrewing.

With permanent micropiles the coupling´s corrosion protection is carried out by

means of a heat shrink sleeve. Thereby a sufficient overlapping to the permanent

protection´s corrugated sheathing is necessary.

The micropile is installed centrically into the cleaned borehole and is then grouted

with cement grout or the borehole has already been filled with cement grout and

grouted afterwards.

With permanent micropiles the corrugated sheathing of the permanent corrosion

protection must be embeded into the foundation body.

bmvit 327120 0060 10 anp micropile sas 550 english

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