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引用本文:	杨鹏辉,梁兴文,何伟,辛力.RC框架HPFRC耗能墙结构侧向刚度计算模型[J].建筑材料学报,2020,23(5):1071-1077

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RC框架HPFRC耗能墙结构侧向刚度计算模型
杨鹏辉¹, 梁兴文², 何伟³, 辛力⁴
1.西安建筑科技大学建筑设计研究院，陕西西安710055;2.西安建筑科技大学土木工程学院,陕西西安710055;3.中国启源工程设计研究院有限公司,陕西西安710018;4.中国建筑西北设计研究院有限公司,陕西西安710018

摘要:

研究了钢筋混凝土(RC)框架高性能纤维增强混凝土(HPFRC)耗能墙结构中RC框架和HPFRC耗能墙的刚度退化规律,建立了RC框架HPFRC耗能墙结构在开裂、屈服和峰值荷载点的侧向刚度计算模型.结果表明：RC框架与HPFRC耗能墙在同一特征荷载点的刚度退化规律差异较大,HPFRC耗能墙比RC框架的刚度退化缓慢很多;基于RC框架与HPFRC耗能墙的刚度退化规律所建立的有效侧向刚度计算模型,基本反映了RC框架HPFRC耗能墙结构的受力和变形特点,按此模型计算所得的结构位移值与试验值基本吻合.

关键词: 钢筋混凝土框架高性能纤维增强混凝土耗能墙侧向刚度计算模型刚度退化规律结构位移

DOI：103969/j.issn.1007 9629202005011

分类号:

基金项目:国家自然科学基金资助项目(51278402)

Lateral Stiffness Calculation Model of RC Frame HPFRC Energy Dissipation Wall Structure

YANG Penghui¹, LIANG Xingwen², HE Wei³, XIN Li⁴

1.Architecture Design and Research Institute, Xian University of Architecture & Technology, Xian 710055, China;2.School of Civil Engineering, Xian University of Architecture & Technology, Xian 710055, China;3.China Qiyuan Engineering Design and Research Institute Co., Ltd., Xian 710018, China;4.China Northwest Architecture Design and Research Institute Co., Ltd., Xian 710018, China

Abstract:

The stiffness degradation rules of reinforced concrete(RC) frame and high performance fiber reinforced concrete(HPFRC) energy dissipation wall in RC frame HPFRC energy dissipation wall structure were studied. The lateral stiffness calculation model of RC frame HPFRC energy dissipation wall structure at cracking, yield and peak load points were established. The results show that the stiffness degradation rules of RC frame and HPFRC energy dissipation wall are quite different even at the same characteristic load point, and the stiffness degradation of HPFRC energy dissipation wall is much slower than that of RC frame; the lateral stiffness calculation model based on the stiffness degradation rules of HPFRC energy dissipation wall and RC frame basically reflects the mechanical properties and deformation characteristics of the structure, the calculated values of the lateral displacement of the structure based on the model are basically consistent with the test values.

Key words: reinforced concrete frame high performance fiber reinforced concrete energy dissipation wall lateral stiffness calculation model stiffness degradation rule lateral displacement