摘要
大跨度空间钢结构设计中,合理选取支吊架对建筑的抗震性有着重要的影响,当前设计过程中未考虑支吊架组合后的抗震性能。综合选取适用于大跨度空间钢结构的支吊架结构,使其具有更优的抗震性能。首先给出目前应用较多的三种结构,其次给出一定的抗震约束条件,如承载力、应力应变与拉伸变形等。在条件约束下,给出具有抗震能力的支吊架选取模型并给出具体计算示例,选取和组合具有一定抗震能力的大跨度空间钢结构支吊架。结果表明,相较于传统的随机支吊架选取方式,具有抗震能力的模型下支吊架核心钢结构抗震水平明显提升。
In the design of long-span spatial steel structures, reasonable selection of the support and upper hanger combination has an important influence on the seismic resistance of the structure. However, such factors are not taken into account in present designs. The main purpose of this paper is to comprehensively select the suitable support and hanger structure for the long-span spatial steel structure, in the hope of better seismic performance. First, three kinds of widely-used contemporary structures were listed. Second, some seismic constraint conditions, such as bearing capacity, stress-strain, and tensile deformation, were presented. Considering seismic constraints, the selection model for the support and hanger with anti-seismic capacity were given along with a concrete calculation example. The support and hanger of long-span spatial steel structure was selected, with a certain seismic capacity considered. The experimental results of the long-span spatial steel structure showed that the seismic level of the core steel structure with the model was obviously improved compared with the traditional random hanger selection method.
作者
刘影
刘德贵
LIU Ying;LIU Degui(College of Physics and Engineering,Chengdu Normal University,Chengdu 610000,Sichuan,China;Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)
出处
《地震工程学报》
CSCD
北大核心
2019年第3期631-637,共7页
China Earthquake Engineering Journal
基金
四川省教育厅项目(15ZB0122)
关键词
大跨度
空间钢结构
支吊架
施工抗震
内力值
large span
spacial steel structure
support and hanger
construction aseismic
internal force value
