计静;李冰;戴建国;张文福;刘迎春;邢菲;

• 1:黑龙江省防灾减灾工程与防护工程高校重点实验室

• 2:香港理工大学土木与结构工程系

• 3:东北石油大学土木建筑工程学院

摘要(Abstract)：

为研究基于套建增层的单跨双层钢框架的抗震性能,以长细比、轴压比及加载位置为参数,设计18组单跨双层钢框架体系;基于简化的力学模型和材料的本构关系,利用ABAQUS有限元软件建立有限元模型,开展框架结构在单调水平荷载作用下的静力分析,通过仿真分析与单跨双层钢框架试验结果对比,两者吻合较好,验证有限元模型建立的合理性;开展18组单跨双层钢框架非线性滞回分析,提取并比较荷载—位移滞回曲线、包络图和骨架曲线,基于能量等效法计算结构的延性因数,考察结构体系的塑性铰出现时间及分布规律;给出钢框架在大跨、重载和套建增层工程中的设计建议.结果表明:单跨双层钢框架结构滞回曲线饱满,塑性、耗能及延性性能较好,形成强柱弱梁的塑性铰机制,为在抗震区新建和既有建筑改造提供技术支撑.

关键词(KeyWords)：套建增层;钢框架;滞回性能;塑性铰;设计建议

Abstract:

Keywords:

基金项目(Foundation):教育部高等学校博士学科点专项科研基金项目(新教师类:20122322120004);; 黑龙江省自然科学基金面上项目(E201336);; 国家自然科学基金项目(51178087)

作者(Author):计静;李冰;戴建国;张文福;刘迎春;邢菲;

Email:

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