摘要
桁架钢筋叠合板在脱模、堆垛、运输、施工安装各个阶段都有可能出现裂缝,一旦开裂,将对建筑物的楼面结构造成安全隐患和一定的经济损失,桁架钢筋叠合板的设计研究有着重大意义。研究对象叠合板尺寸为3 600 mm×2 400 mm×60 mm,控制桁架钢筋种类及板底配筋面积,针对四吊点叠合板进行分析,通过力学模型简化,结合相关力学公式,对其抵抗力矩及吊点进行研究,研究影响叠合板抵抗开裂能力的因素,计算得出不同类型叠合板两个方向抵抗开裂的弯矩、四吊点起吊的最大吊点跨度和最大叠合板尺寸,为工程设计人员设计叠合板提供借鉴和参考。
The truss steel reinforced composite slab may have cracks in the various stages of demoulding, stacking,transportation, construction and installation. Once cracked, it will cause safety hazards and certain economic losses to the building’s floor structure. Therefore, the truss steel composite slab design research is of great significance. The size of the laminated slab researched in this paper is 3 600 mm×2 400 mm×60 mm. It controls the types of truss reinforcement and the area of reinforcement at the bottom of the slab. The analysis is mainly for the four-lifting-point laminated slab. The mechanical model is simplified, combined with related mechanical formulas, and its resistance moment and lifting.Research on the factors that affect the crack resistance of the laminated board, calculated the bending moment of different types of laminated boards to resist cracking in two directions, the maximum lifting point span of four lifting points and the maximum laminated board size, for the engineering designer provide reference and reference for the design of laminated board.
出处
《节能》
2021年第4期5-10,共6页
Energy Conservation
关键词
桁架钢筋叠合板
开裂弯矩
吊点跨度
truss reinforced composite slab
cracking moment
lifting point span
