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采用ANSYS提供的均匀化方法对板柱结构进行拓扑优化,提出四类石膏空腔模无梁楼盖的拓扑优化结构模型:密肋式楼盖、空腹板架式楼盖、井式楼盖和其他网格楼盖.在此基础上,根据已有研究成果和工程经验,提出五种石膏空腔模无梁楼盖结构形式:密肋式楼盖、空腹板架式楼盖、井式-空腹板架组合式楼盖、井式楼盖和9区格楼盖.用ANSYS对上述五种结构进行了竖向荷载下的静力分析,详细研究了其挠度和应力分布.研究表明:9区格楼盖、井式楼盖、井式-空腹板架组合式楼盖、密肋式楼盖、空腹板架式楼盖的挠度依次增大;密肋式楼盖、空腹板架式楼盖、井式-空腹板架组合式楼盖的水平向正应力分布呈明显的实体板特征,而井式楼盖、9区格楼盖无明显的实体板特征.综合挠度分布、应力分布以及施工便捷性等几方面因素,得到井式无梁楼盖、井式-空腹板架组合无梁楼盖较优地结论.
The topological optimization of the slab-column structure is carried out by using the homogenization method provided by ANSYS. The topological optimization model of four types of gypsum cavity-slabless beam-floor is proposed: dense ribbed floor, open webbed floor, well type floor, Based on the existing research results and engineering experience, five gypsum cavity moldless girder floor structures are proposed: dense ribbed floor, open webbed floor slab, well type - An empty webbed modular floor, a pit floor and a 9-zone floor.The static analysis of the above five structures under vertical load was carried out by ANSYS, and the deflection and stress distribution were studied in detail.The results showed that: 9 The deflection of the grid floor cover, the pit floor cover, the well type - the empty webbed combined floor, the dense ribbed floor, the empty webbed floor cover successively increase; the dense ribbed floor, the empty webbed floor The horizontal to normal stress distribution of the cover-well-to-empty panel composite floor has obvious physical panel characteristics, but there is no obvious physical panel feature of the well-type floor and the 9-zone floor cover.The comprehensive deflection distribution, stress distribution and Construction convenience and several other factors, to get a well-beam floor, well-empty plate beam combination beam The floor is superior to the conclusion.