基于荷载分项系数提高对于框架结构设计的影响  

Influence on frame structure design based on load partial factor improvement

作　　者：余沛[1] 高素芹 YU Pei;GAO Su-qin(School of Civil Engineering,Shangqiu Institute of Technology,Shangqiu 476000,China;Henan Huahai Construction Engineering Co.,Ltd,Shangqiu 476000,China)

机构地区：[1]商丘工学院土木工程学院,河南商丘476000 [2]河南华海建设工程有限公司,河南商丘476000

出　　处：《佛山科学技术学院学报（自然科学版）》2021年第1期20-25,共6页Journal of Foshan University(Natural Science Edition)

基　　金：河南省科技攻关项目(192102310510);2019年商丘工学院教育教学改革研究与实践(2019JGXM03)。

摘　　要：依据修改后的现行《建筑结构可靠性设计统一标准》规范,结合不同设防烈度条件下的实际工程模型案例,利用PKPM软件,分析荷载分项系数提高前后对框架结构指标、各主要结构构件配筋增幅以及成本的影响。通过模型计算对比分析表明:荷载分项系数的提高对结构设计指标如受剪承载力之比、刚重比、轴压比有一定影响,尤其是刚重比的影响较大,对于梁配筋的影响较大,其整体配筋增加幅度在3%~5%左右。According to Unified Standard for Reliability Design of Building Structures(revised version),in combination with the actual engineering model cases under different fortification intensity conditions,using PKPM software,this paper analyzes the influence of the increase of load partial factor on the frame structure index,key structure component reinforcement ratio and cost.Through the comparative analysis of model calculation,the results show that the increase of load partial factor has a certain influence on the structural design indexes,such as the ratio of shear bearing capacity,the ratio of rigidity to weight,and the ratio of axial compression,in particular,it has a greater influence on the rigidity-to-weight ratio.When load partial factor increases,the overall reinforcement increases by about 3%-5%.

关 键 词：框架结构 荷载分项系数 配筋 PKPM软件 

分 类 号：TU375.4[建筑科学—结构工程]