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帶樓梯框架結(jié)構(gòu)靜力推覆分析及彈塑性性能研究
吳小賓,馮遠,熊耀清,李從春
摘 要

 

(中國建筑西南設計研究院有限公司,成都 610081)

[摘要]通過對帶樓梯鋼筋混凝土框架結(jié)構(gòu)的靜力推覆分析,并與不計入樓梯的框架模型進行分析對比,研究了樓梯對框架結(jié)構(gòu)彈塑性性能的影響以及帶樓梯框架結(jié)構(gòu)的屈服機制。研究表明:不計入樓梯計算的常規(guī)設計方法不能達到預期的抗震設防目標,為此提出一種樓梯與主體脫離的設計措施。

[關鍵詞]帶樓梯框架結(jié)構(gòu);靜力推覆分析;彈塑性性能;設計建議

中圖分類號:TU375.4文獻標識碼:A文章編號:1002-848X(2011)03-0031-05

Pushover analysis and research of elastic-plastic performance for frame structure with staircase

Wu Xiaobin, Feng Yuan, Xiong Yaoqing, Li Congchun

(China Southwest Architectural Design & Research Institute Co., Ltd., Chengdu 610081, China)

Abstract:Through pushover analysis for frame structure with staircase involved or not, the affection of staircase on elastic-plastic performance of frame structure, and the yielding mechanism of frame structure with staircase were studied. Analysis results indicate that the conventional analysis and design without staircase can not meet the expected seismic target. So the suggestion that the stair case is isolated from main structure was put forward for engineering design.

Keywords:frame structure with staircase; pushover analysis; elastic-plastic performance; design suggestion

*國家科技支撐計劃課題(2009BAJ28B01),四川省級新型墻體材料專項基金項目(No200802),中建股份科技研發(fā)課題(CSCEC-2009-Z-15)。

作者簡介:吳小賓,碩士,教授級高級工程師,Email: wumat@vip.sina.com

參考文獻

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