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对配置HRB500高强钢筋作为受力钢筋的框架与框剪结构体系的抗震性能进行了分析。应用EPDA软件对采用HRB500高强钢筋代替HRB400高强钢筋的若干工程实例进行建模和弹塑性时程分析。对于配置HRB500高强钢筋的结构,在满足轴压比、构造要求及常遇地震作用时的变形要求等条件下,结构在罕遇地震作用下的最大层间位移角均小于规范要求,满足罕遇地震作用下的变形要求,达到了“大震不倒”的第三水准抗震设防目标。分析结果可为使用HRB500高强钢筋的结构的安全性提供数据支持和技术依靠。
The seismic performance of frame and frame shear structure system with HRB500 high strength steel bar as the reinforced bar was analyzed. The application of EPDA software for modeling and elasto-plastic time-history analysis of several engineering cases using HRB500 high strength steel instead of HRB400 high strength steel. For structures with HRB500 high-strength steel bars, the maximum inter-story drift angle of the structure under rare earthquakes is less than the standard requirements under the conditions of axial compression ratio, structural requirements and deformation requirements when the earthquake is often encountered. Earthquake under the deformation requirements, reached the “earthquake does not fall,” the third level of seismic fortification goals. The results of the analysis provide data and technical support for the safety of structures using HRB500 high-strength steel.