vslth's presentation: sobrr c1-precast segmental viaducts erection-15 june 2006
DESCRIPTION
Erection of Precast Segmental Viaducts of the Southern Outer Bangkok Ring Road (SOBRR) project using VSLTH's Overhead Launching Truss.TRANSCRIPT
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SOUTHERN OUTER BANGKOK RING ROAD PROJECT
SOBRR Contract No. 1 Erection of Precast Segmental Viaduct: Span-by-Span Method using Overhead Erection Gantry Padipat Chaemmangkang, Ph.D.
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Precast Segments Fabrication
Match Casting The successful use of precast segmental construction for bridges relies on the ease with which the contractor can erect and fix the segments and this in turn relies heavily on the quality of the joint between them. To ensure the best possible fit between the segments the concept of Match Casting was developed whereby each segment is cast directly against its neighbor.
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Short Line Match Casting Principle: Method of casting in which the form is stationary while the segments move from the casting position to the match casting position and then to the storage.
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Short Line Match Casting (Continued) Advantages: - much less space needed compared to long line (approximately three times the segment length) - the entire process is centralized - horizontal and vertical curves and twisting of the structure are obtained by adjusting the conjugate segment - the forms are reusable for other projects Disadvantages: - to obtain the desired structural configuration, the match cast segment must be accurately positioned. This requires a special geometry control software, the right setup in the casting yard and very skilled surveyors.
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Short Line Match Casting (Continued)
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Long Line Match Casting Principle: Method of casting segments on a long casting bed which makes up the soffit of a complete cantilever or span between field closure pours. One or more formwork units move along this line. The formwork units are guided by the preset soffit.
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Long Line Match Casting (Continued) Advantages: - geometry control is done when constructing the soffit which simplifies the geometry control and segment production - after stripping the forms, it is not necessary to take away the segments immediately
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Long Line Match Casting (Continued) Disadvantages: - requires a large area (minimum length is normally slightly more than half the length of the longest span) - requires a firm foundation which will not settle or deflect under the weight of the segments - if the structure is curved, the long line has to be designed curved also - since the form is mobile, the equipment for casting has to move from place to place - the soffit cannot be reused for a new project - the soffit can be made for one casting curve only
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
Long Line Match Casting
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
SOBRR Project Contract No. 1 – Casting Yard
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
SOBRR Project Contract No. 1 – Casting Yard
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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Precast Segments Fabrication
TC-JV SOBRR Project Contract No. 1
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22 VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
Precast Segments Fabrication
Geometry Control The effect of match casting the precast segments is to ensure an exact fit between segments on erection, as a result of this there is very little scope to adjust the bridge deck alignment on site and consequently it is important to ensure that each segment is accurately cast and more importantly that any errors which occur during casting are picked up and rectified. This is generally of much greater importance for short line casting than for long line.
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Precast Segments Fabrication
Geometry Control
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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Erection of Precast Segments
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
There are two principal methods of precast segmental erection: the Free Cantilever Method (FCM) and the Span-by-Span Method. Within these, there are 3 basic techniques for handling and placing the segments: - by Crane - by Lifting Frame - by Launching Girder (Erection Gantry)
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Span-by-Span Method
This system is based on the principle of assembling an entire span onto a temporary support, stressing the segments together to form the single span deck and then placing the span on its permanent supports. Advantages: - Relatively fast - Simple geometry control - Spans are stable once placed – less temporary works Disadvantages: - Limited span and structure size due to need for full span gantry or falsework.
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Span-by-Span Method
Underslung Erection Gantry This system is based on the use of two or more trusses spanning between the piers on which the segments are placed and the span assembled. The segment placing is generally carried out by a crane or lifting frame. Advantages: - Relatively stable support of segments during assembly - Relatively cheap equipment for supporting and moving segments Disadvantages: - Not good on curved structure - Limited by ground conditions below – requires min. clearance below structure
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Span-by-Span Method
VSL (Thailand) Co., Ltd. SARL Project
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Overhead Erection Gantry In this system the individual segments are hung from an overhead gantry. Once the segments are all in their approximate position they are then aligned and connected (glue/unglue) together to form the final span, which is then lowered onto its bearings. Advantages: - Easy to launch and move - Can cope with curved structure - Not limited by ground conditions Disadvantages: - Segments are relatively unstable in temporary condition - Adjustment and gluing of segments is more difficult
Span-by-Span Method
VSL ASIA Precast Segmental Construction: Practical Aspects of Segment Fabrication & Erection, Neil Thorburn, Manager - Special Projects
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GANTRY TECHNICAL
SPECIFICATION
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Erection Gantry Technical Specification
DESIGN CRITERIA Viaduct Perimeters Maximum Design Span Length (Erection) 45m Maximum Design Span length (Launching) 54m Maximum Design Span Weight 1000T Maximum Design Segment Weight 85T Maximum Numbers of Segment per Span 15nos.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection Gantry Technical Specification
DESIGN CRITERIA (CONT.) Viaduct Alignment Maximum Design Gradient ±4.5% Maximum Design Crossfall ±6% Minimum Radius in Plan 210m
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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MT ELEMENT NO.
LENGTH AT TOP
CHORD (MM)
LENGTH AT BOTTOM CHORD
(MM)
WEIGHT OF MT ELEMENT
(TONS)
11 & 1 9681 7740 8.89
10 & 2 8180 8180 8.95
9 & 3 10080 10080 12.12
8 & 4 8300 10200 25.97
7 & 5 10200 8300 21.11
6 10200 10200 22.11
Erection Gantry Main Truss (MT)
2 Trusses
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection Gantry Upper Cross Beam (UCB)
1 No.
UCB
Function: Lifting of Precast Segments and Relocating LCB
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Upper Cross Beam (UCB)
45
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Erection Gantry Universal Lower Roller Support (ULRS)
4 Nos.
ULRS2 (2 Nos.) ULRS1
(2 Nos.)
Function: Support Structure for MT allowing Longitidinal and Transverse Movements as well as Rotational of MT
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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47 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Universal Lower Roller Support (ULRS)
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48 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Universal Lower Roller Support (ULRS)
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49 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Universal Lower Roller Support (ULRS)
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50 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Universal Lower Roller Support (ULRS)
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51
Erection Gantry Lower Cross Beam (LCB)
2 Nos.
LCB1 (1 No.)
LCB2 (1 No.)
Function: Transverse Load Spreader from MT to LCB Support Leg (SL)
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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52 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Lower Cross Beam (LCB)
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53
Erection Gantry LCB Support Leg (SL)
6 Nos.
SL (2 Nos.)
SL (2 Nos.)
SL (2 Nos.)
Function: Support Structure for LCB
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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54 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry LCB Support Leg (SL)
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55
Erection Gantry Front and Rear Support Leg (FSL/RSL)
2 Nos.
FSL (1 No.)
RSL (1 No.)
Function: Temporary Support to MT during some Stages of Operation
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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56 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Rear Support Leg (RSL)
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57 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Front Support Leg (FSL)
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58
Erection Gantry Lifting Spreader Beam (SPB)
1 No.
SPB
Function: Precast Segment Erection and Relocation of LCB/SL
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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59 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Lifting Spreader Beam (SPB)
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60 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Lifting Spreader Beam (SPB)
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61
Erection Gantry Connection Beam (CB)
24 Nos.
CB (1 No.)
CB Storage Area
Function: Individual Precast Segment Attachment to both SPB during Lifting and SBS during Erection
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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62 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Connection Beam (Standard & Deviator Segments)
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63 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Connection Beam (Pier Segments)
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64 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Connection Beam (Pier Segments)
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65
Erection Gantry Suspension Bar System (SBS)
17 Nos.
SBS
Function: Individual Precast Segment Suspension to MT during Erection
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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66 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Suspension Bar System (SBS)
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67 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Suspension Bar System (SBS)
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68
Erection Gantry Pier Bracket (PB)
PB
PB
Function: Support for FSL Operation and Provision of Longitudinal Stability of Front LCB/SL (LCB2 for Launching
Direction Shown)
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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69 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Pier Bracket (PB)
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70
Erection Gantry Chain Pulling Units (CPU)
Chain Spanner Wheel for MT (Element 3)
CPU for MT (Element 9)
CPU for UCB
Function: Longitudinal Movement of MT and UCB
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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71 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Chain Pulling Units (CPU) – Upper Cross Beam
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72 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Chain Pulling Units (CPU) – MT (Element 9)
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73 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Chain Pulling Units (CPU) – MT (Element 9)
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74 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 : 12 June 2006
Erection Gantry Overall Structure
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75
GANTRY OPERATIONS
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76
1 ASSEMBLY 2 ERECTION OPERATION 3 LAUNCHING OPERATION
Erection Gantry Operations
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77
ASSEMBLY
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78
Erection Gantry Assembly 45M Span
Stage 1
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79
Erection Gantry Assembly 45M Span
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80
Erection Gantry Assembly 45M Span
Stage 2
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81
Erection Gantry Assembly 45M Span
Stage 3
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82
Erection Gantry Assembly 45M Span
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83
Erection Gantry Assembly 45M Span
Stage 4
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Erection Gantry Assembly 45M Span
84
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85
Erection Gantry Assembly 45M Span
Stage 5
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86
Erection Gantry Assembly 45M Span
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87
Erection Gantry Assembly 45M Span
Stage 6
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88
Erection Gantry Assembly 45M Span
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89
Erection Gantry Assembly 45M Span
Stage 7
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90
Erection Gantry Assembly 45M Span
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91
Erection Gantry Assembly 45M Span
Stage 8
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92
Erection Gantry Assembly 45M Span
Stage 9
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93
Erection Gantry Assembly 45M Span
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94 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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95 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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96 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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97 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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98 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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99 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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100 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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101 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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102 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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103 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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104 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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105 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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106 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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107 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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108 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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109 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
110
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111 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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112 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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113 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection Gantry Assembly 45M Span
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114 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 : 12 June 2006
Erection Gantry
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115
ERECTION AND LAUNCHING OPERATION
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Averaged Erection Cycle: Single Decks - 3 shifts per span Twin Decks - 5 shifts per span Erection cycles include launching of the Erection Gantry, erection of all segments, installation and stressing of required PT, and load transferring of span weight.
Erection and Launching Operations Erection Cycle
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Single Decks – 3 shifts per span: - Span erection (max. 15 segments): 1 shift - PT installation, stressing and load transferring onto span jacks: 1 shift - Launching of the Gantry into next span: 1 shift Twin Decks - 5 shifts per span: - Span erection (max. 15 segments): 2 shifts - PT installation, stressing and load transferring onto span jacks: 2 shifts - Launching of the Gantry into next span: 1 shift
Erection and Launching Operations Erection Cycle
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Erection and Launching Operations Erection Cycle
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 1: upon completion of Span P(N-1) / P(N) two bounds -Store CB at respective position shown. -MT CPU fixity at pier P(N). -Brace LCB2 against previously erected viaduct. -Load transfer MT support from jack shim to crane wheel of ULRS
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 2 -Deactivate LCB2 prop to PB. -Move MT transversely to centerline of twin deck. -Align MT for launching. -Move UCB to centerline of pier P(N-1). -Launch MT forward until C.G. is over pier P(N); Keep UCB at centerline of pier P(N-1). -Engage MT fixity pin to ULRS2. -Activate FSL.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 3 -Activate RSL to free ULRS1. -Deactivate LCB; Lift LCB1 off SL using UCB. -Move and position ULRS1/LCB1 near mid-span of P(N-1) / P(N). -Rotate LCB 1 by 90°.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 4 -Lift up and position LCB1 between MT. -Move ULRS1/LCB1 to mid-span of P(N) / P(N+1). -Lower down LCB1.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 5 -Rotate LCB1 by 90° and move ULRS1/LCB1 to pier P(N+1). -Engage LCB1 onto SL.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 6 -Deactivate FSL and load transfer MT support to ULRS. -Move FSL away and install LCB1 prop to PB. -Release LCB1 temporary prop. -Deactivate RSL.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 7 -Disengage MT fixity from ULRS2. -Launch MT forward to erection position; Keep UCB at centerline of pier P(N+1).
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 8 -Move MT transversely to centerline of left / right bound. -Move in CB storage trailer and position between pier P(N-1) and P(N). -Launch MT backward until C.G. is over P(N); Keep UCB at centerline of pier P(N+1). -Engage MT fixity pin to ULRS2. -Activate RSL on single deck.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 9 -Move UCB to pier P(N-1); Disengage and lift SL to span between P(N) and P(N+1) to be lowered to ground. -Move UCB to pier P(N); Disengage and lift PB to span between P(N) and P(N+1) to be lowered to ground.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 10 -Move UCB to lift and park 6 nos. of CB onto CB storage trailer. -Keep 1 no. of CB (for pier segment) suspended on SPB and move UCB to centerline of pier P(N+1). -Deactivate RSL.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 11 -Disengage MT fixity from ULRS2. -Launch MT forward to erection position; Keep UCB at centerline of pier P(N+1). -Load transfer MT support from crane wheel to jack shim. -Transfer MT CPU fixity from pier P(N) to P(N+1). -Gantry is ready for span P(N) / P(N+1) construction.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 12 -Rotate and fix RSL. -Deliver segment over previously erected deck. -Pick up segments using UCB/SPB/CB. -Move and hang segments to suspension bars on MT. -Stagger segments as shown to allow for last segment rotation.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 13 -Rearrange and joint segments using UCB/SPB/CB from pier P(N) to about final level. -Install longitudinal PT required. -Stress longitudinal PT required at pier P(N+1) and lower ULRS jacks in stages to load transfer span weight from Gantry to piers.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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Erection and Launching Operations 45M Span
Stage 14 -Release and remove suspension bars from CB and store in MT. -Brace LCB2 against placed viaduct. -Store CB using UCB on placed viaduct. -Load transfer MT support from jack shim to crane wheels. -Repeat stages 8 to 14 for adjacent viaduct.
VSL Singapore PTE. LTD. Technical Center Asia/Australia, Precast Segmental Viaduct Erection Gantry: Methodology Report, MF05017/R01A Issue A, 2005.
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133
ERECTION GANTRY KINEMATICS FOR 49.5M-54M-49.5M SPAN
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134 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 1 - Span erection for Span 45-2/45-3 completed.
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135 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 3 -Deactivate FSL/RSL -Launch MT to position shown -Erect Span 45-3/45-4
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136 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 4 -Erect Span on Pier 45-4 as shown
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137 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 7 -Deactivate RSL -Launch MT to position shown -Erect Span 45-4/45-5
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138 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 8 -Erect Span on Pier 45-5 as shown
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139 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 49.5M-54M-49.5M Span
Stage 11 -Deactivate RSL -Launch MT to position shown -Erect Span 45-5/45-6
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140 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 1 -Shorten FSL module during MT launching into Span 45-19/45-20 -Erect Span 45-19/45-20
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141 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 2 -Launch MT to position shown -Activate FSL/RSL
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142 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 3 -Move ULRS1/LCB1 to position shown with special support shims on deck
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143 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 4 -Deactivate FSL/RSL -Launch MT to position shown
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144 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 5 -Launch MT to position shown -Activate FSL/RSL
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145 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 6 -Move ULRS2/LCB2 to position shown with special support shims on deck
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146 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 7 -Deactivate FSL/RSL -Launch MT to position shown
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147 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 8 -Launch MT to position shown -Activate FSL/RSL
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148 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 9 -Move ULRS1/LCB1 to Pier 46-2
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149 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 10 -Deactivate FSL/RSL -Launch MT to position shown
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150 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 11 -Launch MT to position shown -Activate FSL/RSL
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151 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 12 -Move ULRS2/LCB2 to Pier 46-3
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152 VSL Singapore PTE. LTD. Technical Center Asia/Australia, Erection Gantry Kinematics for 49.5m-54m-49.5m Span, MF05017/KN/22 Revision B, 2005.
Erection Gantry Kinematics 40M-70M-40M Span
Stage 13 -Remove and lower PB from Pier 46-2 -Gantry is ready to erect Span 46-2/46-3
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153 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
Erection and Stressing Works First Span
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154 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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155 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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156 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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157 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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158 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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159 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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160 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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161 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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162 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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163
Span-by-Span Method
VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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164 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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165 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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166 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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167 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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168 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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169 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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170 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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171 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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173 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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174 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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175 VSL (Thailand) Co., Ltd. SOBRR Project Contract No. 1 .
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