BC6_3_lect_fzs_MonRCwalls_2017fall_honlapMONOLITHIC R.C. WALLS
Dr. Bálint Petró Prof. Emeritus Dr. Gergely Dobszay, lecturer Dr. Zsuzsanna Fülöp, lecturer
Dr. Miklós Kézdi expert Miklós Svéd, expert
18. Sept. 2017.
1. Formwork panel systems
4. Tunnel shuttering
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18. Sept. 2017.
BUTE Faculty of Architecture Dept. Of Building Constructions
The Effect of Shuttering on the Floorplan Layout
18. Sept. 2017.
Large wall formwork panels are removed by crane from the outside
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1. Formwork Panel Systems
Smaller slab formwork panels are removed manually through the openings
18. Sept. 2017.
PERI Vario Wall Formwork, Germany
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Formwork Panel Systems
18. Sept. 2017.
DOKA Top 50 • tri-ply saturated softwood panel • glued timber „I” beam supports
DOKA AluFramax • Laminated timber panels with
plastic foil • Extuded aluminum alloy supports
BUTE Faculty of Architecture Dept. Of Building Constructions
Formwork Panel Systems - Walls 6
18. Sept. 2017.
• Story-high wall formwork panels • Independent floor slab shuttering • Positioning: top and bottom guide rails, • Vertical adjustment: wedges • Wind pressure: bracing • Horizontal pressure of concrete: spacers
BUTE Faculty of Architecture Dept. Of Building Constructions
Formwork Panel Systems - Walls 7
18. Sept. 2017.
BUTE Faculty of Architecture Dept. Of Building Constructions
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Modul-coordinated
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18. Sept. 2017.
BUTE Faculty of Architecture Dept. Of Building Constructions
Dismounting
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11 Formwork Panel Systems
Up-to-date formworks – Concreting next to neighbouring building
Concrete permanent shutter-body Creeping formwork
RC Technology - influenced Details
BUTE Faculty of Architecture Dept. Of Building Constructions
• Connection grooves and pockets • Space for moving the formwork • Crane acces • Formwork removal and rotation • Concrete inlets become pillars that are removed later
RC Technology - influenced Details
removable inserts – ready-made products • hard to join monolithic to prefab. elements
prefab. connection elements are concreted in
BUTE Faculty of Architecture Dept. Of Building Constructions
RC Technology - influenced Details
RC Details – Zipper Re-bars
18. Sept. 2017.
RC Details – Connection Grooves and Pockets
18. Sept. 2017.
pockets
landing
• monolithic, with supporting beams, built subsequently
• prefabricated (even with covering)
BUTE Faculty of Architecture Dept. Of Building Constructions
RC Stair Flight
18. Sept. 2017.
RC Foundation Beam
Strip foundation with RC foundation ringbeam: • distribution of loads • connection to wall • bracing of thin RC wall • wall-to-foundation connection
18. Sept. 2017.
RC Foundation Beam
Supports excenric loads
RC foundation beams
18. Sept. 2017.
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External wall choice depends on RC construction method: • similar all around or different endwalls and elevations • tunnel shuttering sanwitch panel or lightweight wall panel • monolithic RC external wall thermal insulation + plaster or ventilated composites • residential buildings: curtain walls are not suitable • contemporary office buildings: free-form RC walls + window strips or curtain wall
Differences between RC skeleton frames and wall-type loadbearing systems diminsh
BUTE Faculty of Architecture Dept. Of Building Constructions
External Walls of RC Buildings
Thermal insulation is reinforced at corners
18. Sept. 2017.
23 Küls falak
External Walls of RC Buildings
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• windows, doors: formwork or dummy frames • interior finishing: quick construction, no wet technology storey-high
partition wall panels, later drywall • floors: soft contact-type, then floated, now false floors • MEP: directly into the concrete? pipes for electric wires are concreted in
plumbing and water pipes: vertical. ducts, above false ceiling
Edge protection „Concrete-cosmetics”, internal renderings BUTE Faculty of Architecture Dept. Of Building Constructions
RC Buildings - Finishings
18. Sept. 2017.
18. Sept. 2017.
BUTE Faculty of Architecture Dept. Of Building Constructions
• Floor slab and walls are made simultaneously • Shuttering is pulled out at the elevation • Bracing walls are cast later into connection grooves
4. Tunnel Shuttering
18. Sept. 2017.
Cross-section of formwork unit
Longitudinal section showing cantilevering elevation scaffold
Tunnel Shuttering
BUTE Faculty of Architecture Dept. Of Building Constructions
External Walls – Sandwitch Panel
Wrong solution
External Walls – Sandwitch Panel
Mostly applied for staircase blocks that brace skeleton frame buildings
Floor slabs are constructed subsequently using formwork lowering technology
Creeping Formwork
Thoma Formwork System: – Support rod remains in place, – Internal-external scaffold – Synronized electro-hydraulic
elevator units – Initially constructed without
intermediate horizontal structure
Creeping Formwork 32
18. Sept. 2017.
Sliding Formwork
18. Sept. 2017.
• The previously completed RC section supports the new construction level
Constructing the pier of a highway bridge
Sliding Formwork 34
18. Sept. 2017.
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Sliding Formwork
• Formwork of turbine tunnel of hydroelectric station
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Sliding Formwork