楼板装修对结构可靠度的影响

Influence of renovation on structure reliability of floor material

在建筑物楼板装修中使用的各种装饰材料如瓷砖、石材等 ,将大大增加楼面恒荷载并影响到结构的安全度 .以某多层砖混结构楼板装修为例 ,楼板贴瓷砖后 ,厚度增加 3 0mm ,利用可靠度理论 ,对结构的抗力及荷载效应分别进行了分析 ,由极限状态方程计算出 ,可靠指标比装修前降低了 1 1 77.因此 ,楼板装修后 ,结构的安全度降低 .

After being decorated with kinds of the ornamental material such as ceramic brick,stone material etc on the building floors,the floorloading will be increased to a great extent and lower the structrue safety.The floor ornamentation of the multilayer brick_mixed structure is taken as an example,and the theory of the reliability degree is used to analyse respectively the structural resistance and the loading effect.The floor slab's reliability index is computed out by the limit state equation,and lowered 1 177 than that before decoration with ceramic brick because its thickness increases 30 mm.Therefore,the structure safety degree is lower.