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Lift Slab Structures Instability During Construction
Lift slab structures are built in a method, which makes them inherently vulnerable to static and dynamic instability during the construction stages. The columns cannot be laterally braced in the areas where temporarily anchored slabs are to be lifted to higher levels, because the bracing will make the lifting process of the slabs to higher level impossible. Thus the columns will stay long and slender between the temporarily anchored slabs, at different levels, until the shear walls are built at the lower levels, where the slabs are anchored in their final positions. This situation requires the checking of the whole structure above the shear walls for its stability against its own load. A formula was derived to help in checking the stability of such structures, based on the number of slabs, anchored temporarily at different levels, the distances between those anchored groups and the rigidity of the columns.
Lift Slab Structures Instability During Construction
Lift slab structures are built in a method, which makes them inherently vulnerable to static and dynamic instability during the construction stages. The columns cannot be laterally braced in the areas where temporarily anchored slabs are to be lifted to higher levels, because the bracing will make the lifting process of the slabs to higher level impossible. Thus the columns will stay long and slender between the temporarily anchored slabs, at different levels, until the shear walls are built at the lower levels, where the slabs are anchored in their final positions. This situation requires the checking of the whole structure above the shear walls for its stability against its own load. A formula was derived to help in checking the stability of such structures, based on the number of slabs, anchored temporarily at different levels, the distances between those anchored groups and the rigidity of the columns.
Lift Slab Structures Instability During Construction
Masih, Rusk (author)
Eighth International Conference on Computing in Civil and Building Engineering (ICCCBE-VIII) ; 2000 ; Stanford, California, United States
2000-08-04
Conference paper
Electronic Resource
English
Lift Slab Structures Instability During Construction
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