钢筋桁架楼板承载力有限元分析  

Finite element analysis of steel bar truss slab load-carrying capacity

作　　者：赵建忠[1] 孙磊[1] 王干[1] 

机构地区：[1]苏州工业园区设计研究院股份有限公司,江苏苏州215021

出　　处：《山东建筑大学学报》2015年第2期123-128,153,共7页Journal of Shandong Jianzhu University

摘　　要：钢筋桁架楼板在工程中的应用日益广泛,深入研究该楼板的受力性能有利于指导实际工程应用。文章采用有限元分析软件ANSYS对钢筋桁架楼板进行单调静力加载模拟,通过正交试验的方法对剪跨比、底部压型钢板、腹杆等影响因素进行研究。结果表明:楼板进入弹塑性阶段以后,试验中的4块带钢板的桁架楼板极限弯矩可提高30%左右,同时斜腹杆以及楼板的剪跨比对承载力也有较大的影响。对钢筋桁架楼板正截面受弯承载力计算公式进行补充和修改,达到了减轻结构自重、降低工程造价的目的。In order to make a deep research on the structural behavior of steel bar truss slab,the FEM ANSYS was used to simulate monotonic static loading process of the slab. Through the analysis of different value of parameters of shear-span ratio,steel sheeting,diagonal web member,the same conclusion with the influence pattern of rigidity was achieved as well as the test. According to the results of the test,the formula of load-carrying capacity is advanced for future reference. Also,the shear-span ratio and diagonal web member will impact the capacity. Due to the beneficial effects of steel slabs were not considered,the suggestion was put forward to improve the correlation formulasto ease the weight of the structure and reduce the construction cost.

关 键 词：钢筋桁架楼板 压型钢板 承载力 有限元分析 

分 类 号：TU398[建筑科学—结构工程]