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POST-
TENSIONING
SYSTEM
The use of post-tensioning system in building offers numerous advantages such as economic savings, minimised floor-to-floor heights, increased column-free space, minimised foundations, in seismic areas, reduced weight and lateral load resisting systems, simplified slab design and construction etc.
Advantages of post-tensioning system
Reduction of total labor costs for constructionmore than twice
Shallow structural depth Bigger column-free spans Less steel and concrete consumption on 50% Reduction in foundation loads in 2-3 times Better deflection control Better crack control
Transverse components and panel forces resulting from post-tensioning
Principle of the load-balancing method
Slab without
or with capitals
Applicated in: span 7-10m span 8-16m, big load
Reinforced ConcreteDesign
Post-TensionedAlternative Design
One Way System
Two Way System
Beam: 10–16mSlab: 8–12m
Tendons Layout Suitable Spans
Slab: 8–10m
Main cost saving due to structural depth reduction
Traditional Design Post-Tensioned Structure
Headroom
Structural Depth Reduction500
500270
270
460 mm
Headroom
Headroom
Headroom
High buildings:
• reduced weight• reduced slab thickness • increased number of floors with the same
building height• accelerated construction process
Parkings:
• reduced weight• optimal use of space• waterproof slabs (without cracks) • reduced slab thickness• accelerated construction process
POST-TENSIONING SOLUTIONS FOR BUILDINGS
NEW US EMBASSY PARKING-GARAGE, KIEV, UKRAINE
Projects
POST-TENSIONING SOLUTIONS FOR BUILDINGS
HANG SENG BANK, HONG KONGThinner slabs, less piles, more floor space.
Projects
PACKAGES FOR BUILDINGS
GATEWAY II PROJECT, HONG-KONGDesign, post-tensioning, climbform and concreting.
Projects
POST-TENSIONING SOLUTIONS FOR BUILDINGS
DUBAI FESTIVAL CITY, DUBAIPost-tensioning on 5 structures in 2 zones with a total post-tensioned area of 250,000m2
Projects
SPECIALISED PACKAGE: HEAVY LIFTING
PUSAN STADIUM, KOREARoof lifting.
Projects
SPECIALISED PACKAGE: HEAVY LIFTING
BURJ DUBAI, UAEPinnacle lifting of the 818 m high building. Pinnacle height 143 m, weight 500t. Lifting distance 88 m.
Projects
POST-TENSIONING SOLUTIONS FOR BUILDINGS
NESTLE PLANT, CHILEPost-tensioning of 30 000 m2 of slab on ground.
Projects
POST-TENSIONING AND STAY CABLE STRUCTURES
CHING CHAU MIN JIANG BRIDGE, FUZHOU, PRCSupply and installation of the stay cables, including components, supervision, labour and equipment.
Projects
POST-TENSIONING SOLUTIONS FOR BUILDINGS
AUSTRACK- VICTORIA, AUSTRALIADesign and build of 16,000 m2 of a post-tensioned warehouse slab.
Projects
PACKAGES FOR BRIDGES
PUENTE DE LA UNIDAD, MONTERREY, MEXICOFull construction of a stay cable bridge..
Projects
POST-TENSIONING AND STAY CABLE STRUCTURES
WADI LEBAN BRIDGE, SAUDI ARABIAMain span length 405m
Projects
VSoL® RETAINED EARTH
CASTLE PEAK ROAD, HONG KONGInstallation of 33,000m2 of retaining walls on a coastal road project
Projects
ОбъектыPACKAGES FOR BUILDINGS
SHOPPING MALL DUBAI, UAE300,000m² of post-tensioned slabs for the world’s largest shopping mall.
Projects
SPECIALISED PACKAGE: DUCTAL®
SUNYUDO FOOTBRIDGE, SOUTH KOREAA 120 m long span and a rise of 15 m, a world’s first..
Projects
SPECIALISED PACKAGE: DUCTAL®
SAKATA MIRAI FOOTBRIDGE, JAPAN51 m long span footbridge
Projects
CONTAINMENT STRUCTURES LNG TANKS, FUJIAN, CHINADesign, supervision and supply of post-tensioning material including successful cyrogenic tests at temperatures of -170°C
Projects
Thanks for your attention! Thanks for your attention!
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