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Monolithic waffle slab floors of buildings МОНОЛИТНЫЕ КЕССОННЫЕ ПЕРЕКРЫТИЯ ЗДАНИЙ
The author proposes a structural solution of monolithic slab floors of buildings,10x10 m. It is a kind of a monolithic slab with intersecting beams (span of beams — 2 m). The use of monolithic waffle slabs instead of flat slabs reduces consumption of concrete by the floor structure. Reduced thickness of monolithic waffle slab floors is much smaller than the thickness of a flat slab, but its total thickness increases, depending on the height of the beam.Monolithic waffle slab floors were calculated by the author using analytical and computer methods. The results of calculations completed using LIRA software system were significantly (about 50 %) different from the calculation results based on the analytical methodology. In computer calculations, the floor slab is considered as a beam-edge slab. Whereas according to the analytical method of calculation, intersecting beams are considered separately, and slabs between them are also calculated independently.However, the construction and subsequent behaviour of the floor calculated using the analytical method, make it possible to consider this method of calculation as reliable. It should be noted that the real behaviour of monolithic wafer slab floor differs from the ideal computer simulation model which ignores the redistribution of forces inside reinforced concrete structures. On the other hand, simplified patterns of analytical calculations fail to reproduce the real behaviour of structures. Therefore, the results of both calculations were taken into account in the design.
Предложен вариант конструктивного решения монолитного кессонного перекрытия размером 10×10 м, которое представляет собой разновидность монолитного ребристого перекрытия с перескающимися балками (шаг балок 2 м). Расчеты кессонного перекрытия, выполненные с использованием аналитического и автоматизированного методов, выявили расхождения результатов расчета. Объяснена причина расхождения результатов. Приведен опалубочный чертеж, а также схема армирования монолитного кессонного перекрытия.
Monolithic waffle slab floors of buildings МОНОЛИТНЫЕ КЕССОННЫЕ ПЕРЕКРЫТИЯ ЗДАНИЙ
The author proposes a structural solution of monolithic slab floors of buildings,10x10 m. It is a kind of a monolithic slab with intersecting beams (span of beams — 2 m). The use of monolithic waffle slabs instead of flat slabs reduces consumption of concrete by the floor structure. Reduced thickness of monolithic waffle slab floors is much smaller than the thickness of a flat slab, but its total thickness increases, depending on the height of the beam.Monolithic waffle slab floors were calculated by the author using analytical and computer methods. The results of calculations completed using LIRA software system were significantly (about 50 %) different from the calculation results based on the analytical methodology. In computer calculations, the floor slab is considered as a beam-edge slab. Whereas according to the analytical method of calculation, intersecting beams are considered separately, and slabs between them are also calculated independently.However, the construction and subsequent behaviour of the floor calculated using the analytical method, make it possible to consider this method of calculation as reliable. It should be noted that the real behaviour of monolithic wafer slab floor differs from the ideal computer simulation model which ignores the redistribution of forces inside reinforced concrete structures. On the other hand, simplified patterns of analytical calculations fail to reproduce the real behaviour of structures. Therefore, the results of both calculations were taken into account in the design.
Предложен вариант конструктивного решения монолитного кессонного перекрытия размером 10×10 м, которое представляет собой разновидность монолитного ребристого перекрытия с перескающимися балками (шаг балок 2 м). Расчеты кессонного перекрытия, выполненные с использованием аналитического и автоматизированного методов, выявили расхождения результатов расчета. Объяснена причина расхождения результатов. Приведен опалубочный чертеж, а также схема армирования монолитного кессонного перекрытия.
Monolithic waffle slab floors of buildings МОНОЛИТНЫЕ КЕССОННЫЕ ПЕРЕКРЫТИЯ ЗДАНИЙ
Malakhova Anna Nikolaevna (author)
2013
Article (Journal)
Electronic Resource
Unknown
monolithic waffle slab floor , 10x10 m , analytical and computer methods of calculation , formwork drawings , reinforcement pattern , монолитное кессонное перекрытие 10×10 м , шаг пересе- кающихся балок 2 м , аналитический расчет , компьютерный расчет , опалубочный чертеж , схема армирования , Architecture , NA1-9428 , Construction industry , HD9715-9717.5
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