建(构)筑物抗震结构对钢材性能要求的研究  

RESEARCH ON THE REQUIREMENTS FOR STEEL TENSILE ELONGATION OF SEISMIC STRCTURES

作　　者：吴耀华[1] 岳清瑞[1] 曾滨[1] Wu Yaohua Yue Qingrui Zengbin(Central Research Institute of Building and Construction Co. Lid, MCC group, Beijing 100088, China)

机构地区：[1]中冶建筑研究总院有限公司,北京100088

出　　处：《钢结构》2017年第1期87-90,共4页Steel Construction

摘　　要：分析了中国、美国和欧洲等国内外抗震设计规范对抗震结构中钢材断后伸长率的要求,指出了各国规范的要求基本相同,而中国的相关设计规范对钢材的断后伸长率值对应的试样种类和标距未予明确。钢材的断后伸长率有不同的种类,通过伸长率指标的换算,并结合实际工程中使用的国产钢材的的屈强比和伸长率工程调研和统计分析,由此得出结论:国产Q235—Q460级别的钢材性能可以满足抗震结构要求的屈强比、伸长率要求。Based on the analysis of steel properties requirements on seismic structures of China,American and Europe design codes,this paper indicted that the requirements of these codes were similar. However,the steel tensile elongation after fracture and its corresponding specimens and gauge length are not determined in China’s codes. Through the conversion of the tensile elongation indicators and combined with engineering investigation and statistical analysis of steel elongation and the yield ratio of tensile strength,the conclusion indicated that the plastic properties of domestic Q235—Q460 steel could meet the requirements of yield ratio and elongation of seismic structures.

关 键 词：抗震结构 伸长率 屈强比 国产钢材 塑性性能 

分 类 号：TU352.11[建筑科学—结构工程]