荷载标准值与分项系数的分析  

Analysis of load characteristics value and partial coefficient

作　　者：邸小坛[1] 纪鹏远 曾兵[1] DI Xiaotan JI Pengyuan ZENG Bing(China Academy of Building Research,Beijing 100013, China)

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《四川建筑科学研究》2017年第1期12-15,共4页Sichuan Building Science

基　　金：中国建筑科学研究院院应用技术研究课题(20140112330730052)

摘　　要：近些年来我国时常出现建筑物被风吹毁,结构被雪压塌事故。针对于这些现象,本文对规范中风荷载、雪荷载以及楼面均布荷载的标准值和分项系数的取值展开了分析。做了对荷载规范相关内容的变动的分析,以及和实测数据的计算结果的对比。分析结果表明,目前我国规范中的风荷载和雪荷载的取值偏低,分项系数的取值并没有因地区不同而加以区别,不符合可靠性设计的基本原则,同时取值偏小。对于楼面均布荷载并没有按照规范中所规定的方法进行取值,且分项系数同样偏低。In recent years, a lot of buildings have been destroyed by wind and snow in China. To find the reason, this article analysed the characteristics value and partial coefficient of snow load, wind load and floor uniform live load. This article analysed the changes in the content of the load, and compared with the calculated results with the measured data. Analysis results show that the characteristics value of wind load and snow load value is low,the present standard of subentry coefficient value cannot meet the target reliability index. The value of the partial coefficient is not different according to different regions make the reliability index of each region is not the same. For floor uniform live load does not follow the methods specified in the specification, and the partial coefficient cannot meet the target reliability index.

关 键 词：分项系数 标准值 风荷载 雪荷载 楼面均布荷载 

分 类 号：TU312.1[建筑科学—结构工程]