刘大伟¹，王伟^2,3，马场峰雄¹，余亚超⁴，陈以一^2,3，杨建行⁴

（1 日本大和房屋工业株式会社，奈良 631-0801；2 同济大学土木工程防灾国家重点实验室, 上海 200092；3 同济大学建筑工程系，上海 200092；4 宝业集团浙江建设产业研究院有限公司，绍兴 312030）

 

[摘要] 基于国内既有工艺研制了可应用于分层装配式支撑钢结构工业化建筑的新型套筒-扁钢支撑，并进行了4个特定规格和构造的足尺支撑单元循环往复加载试验。试验结果表明，该新型支撑在结构发生往复大变形条件下具有优良可靠的变形能力，可以保证体系的抗震安全性。根据简化计算模型建立了支撑单元的设计承载力表达式，指出支撑单元的层间位移角仅由支撑倾斜角与钢材屈服强度决定。在支撑弹性设计原则下，结构层间位移可以满足现行抗震规范的弹性变形限值要求。

[关键词] 分层装配；钢结构；工业化建筑；支撑；试验

中图分类号：TU391文献标识码：A文章编号：1002-848X(2012)10-0057-04

 

Liu Dawei¹, Wang Wei^2,3, Baba Mineo¹, Yu Yachao⁴, Chen Yiyi^2,3, Yang Jianxing⁴

（1 Daiwa House Industry Co., Ltd., Nara City 631-0801, Japan; 2 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3 Department of Building Engineering, Tongji University, Shanghai 200092, China; 4 Zhejiang Construction Industry Research Institute，Baoye Group, Shaoxing 312030, China)

 

Abstract: An innovative brace using sleeve-flat bar was developed for the floor-by-floor assembled steel braced structures for prefabricated buildings. Cyclic tests were carried out on four full scale braced elements with specific sizes and details. Test results show that the developed braces have excellent and reliable deformability enough to ensure seismic safety of the structural system under the conditions of large cyclic story drift. The equation for predicting design strength of the braced element was built by adopting simplified computation model. It is indicated that the story drift angle of the braced element depends on inclined angle of the brace and the yield strength of steel material exclusively. It can satisfy the requirements of elastic deformation limits in the current code for seismic design buildings when the braces are proportioned to be elastic under design earthquake action.

Keywords: floor-by-floor assembling; steel structure; prefabricated building; brace; test

*中央高校基本科研业务费专项资金。

通讯作者：王伟，博士, 副教授，Email: weiwang@tongji.edu.cn。

 

［1］王伟，陈以一，余亚超，等. 分层装配式支撑钢结构工业化建筑体系［J］. 建筑结构，2012,42(10):48-52.

［2］JIS-A-5540 Turnbuckle for building［S］. Tokyo:Japanese Industrial Standards, 2008.

［3］低层建筑物的结构承载力性能评定技术规程（钢结构）［S］.东京：日本建筑中心，1997.

［4］GB 50011—2010 建筑抗震设计规范［S］. 北京：中国建筑工业出版社，2010.