无梁楼盖结构计算分析与研究

Calculation,Analysis and Research of Beamless Floor Structure

近年来,国内无梁楼盖结构顶板塌落、结构受损事故频发,造成了大量的财产损失和人员伤亡,除了设计过程施工荷载考虑不足外,施工荷载增加、堆载未按要求堆放或后期擅自改变功能导致实际荷载远远大于设计荷载,也是导致顶板开裂甚至坍塌的主要原因。采用国内常用的3种软件,针对不同工况下的无梁楼盖进行模拟计算,通过多种工况下不同软件的相互验算,得出了无梁楼盖结构和跨度及荷载的曲线关系,为无梁楼盖结构的设计提供了参考。

In recent years,the roof collapse and structural damage accidents of domestic beamless floor structure occur frequently,which cause a lot of property loss and casualties.In addition to the insufficient consideration of construction load in the design process,the construction load increases,the stacking load is not stacked according to the requirements,or the function is changed arbitrarily in the later stage,which leads to the actual load far greater than the design load,which is also the main cause of roof cracking and even collapse reason.In this paper,three kinds of software commonly used in China are used to simulate the beamless floor under different working conditions.Through the mutual checking calculation of different software under various working conditions,the curve relationship between the structure,span and load of the beamless floor structure is obtained,which provides a reference for the design of today,s beamless floor structure.