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傳統(tǒng)風格建筑鋼筋混凝土框架擬動力和擬靜力試驗研究
侯文龍1,車順利1,吳琨1,薛建陽2,葛鴻鵬1
摘 要

(1 中國建筑西北設計研究院有限公司, 西安 710018; 2 西安建筑科技大學土木工程學院, 西安 710055)

[摘要]通過對一榀1∶2縮尺傳統(tǒng)風格建筑鋼筋混凝土框架模型進行擬動力和擬靜力試驗,研究了傳統(tǒng)風格建筑框架的地震反應、能量耗能、剛度退化及滯回性能等抗震性能。擬動力試驗結果表明,相同地震波作用下,隨著加速度的增加,結構的位移逐漸加大;不同地震波在相同峰值加速度的情況下,框架模型的位移時程曲線表現(xiàn)有差異, 其中El Centro波影響最大,汶川波影響最小。擬靜力試驗結果表明,框架滯回曲線較為豐滿,說明在低周反復荷載作用下具有較強的耗能能力。框架柱柱頂由于內(nèi)插了方鋼管柱,節(jié)點核心區(qū)的抗裂性能得到了很大的提升,節(jié)點剛性制約了梁柱節(jié)點的變形,從而提高了整個框架的抗震性能和變形恢復能力。

[關鍵詞]傳統(tǒng)風格建筑; 擬靜力試驗; 擬動力試驗; 滯回曲線; 抗震性能

中圖分類號:TU318文獻標識碼:A文章編號:1002-848X(2017)22-0082-07

 

Pseudo  dynamic and pseudo static test study on reinforced concrete frame with traditional style building

Hou Wenlong1, Che Shunli1, Wu Kun1, Xue Jianyang2, Ge Hongpeng1

(1 China Northwest Architecture Design and Research Institute Co., Ltd., Xi′an 710018, China;2 School of Civil Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, China)

Abstract:The seismic performances including seismic behavior, energy dissipation, stiffness degradation and hysteretic behavior were studied of a 1∶2 scaled traditional style reinforced concrete frame model by pseudo dynamic and pseudo static tests. The results of the pseudo dynamic test show that the displacement of the structure increases with the increase of the acceleration of the same seismic wave. The displacement time-history curve of the frame model is different for different seismic waves under the same peak acceleration, and the El Centro wave has the largest effect and Wenchuan wave has minimal effect. The pseudo static test results show that the hysteresis curve of the frame is more plentiful, which shows that it has strong energy dissipation capacity under the action of low cyclic reversed load. The crack resistance of the core area of the frame is greatly improved due to the interpolation of the square steel column. The rigidity of the joint restricts the deformation of the beam and column joints, thus improving the seismic performance and deformation recovery ability of the whole frame.

Keywords:traditional style building; pseudo static test; pseudo dynamic test; hysteresis curve; seismic performance

 

作者簡介:侯文龍,碩士,工程師,Email:hwl113@163.com。

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