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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

23卷

期数:

2006年03期

页码:

54

栏目:

出版日期:

2006-09-20

文章信息/Info

Title:

Normal Section Bearing Capacity of RC Beams Strengthened by Bonded Steel Plates

作者:

朱皓明¹,周期源²,高轩能¹,张惠华¹

1.华侨大学 土木工程学院,福建 泉州 362021; 2.南昌大学 建筑工程学院,江西 南昌 330029

Author(s):

ZHU Hao-ming¹, ZHOU Qi-yuan², GAO Xuan-neng¹, ZHANG Hui-hua¹

1.School of Civil Engineering, Huaqiao University, Quanzhou 362021, Fujian, China; 2.School of Architectural Engineering, Nanchang University, Nanchang 330029, Jiangxi, China

关键词:

粘钢加固RC梁;  承载力;  粘钢量;  粘钢位置;  承载力折减系数

Keywords:

RC beam strengthened by bonded steel plate;  bearing capacity;  amount of glued-steel;  position of glued-steel;  reduction coefficientof bearing capacity

分类号:

TU375.1

DOI:

-

文献标志码:

A

摘要:

对粘钢加固RC梁在荷载作用下的变形过程和破坏形式进行了理论和试验研究,讨论了粘钢位置和粘钢量对RC梁的短期刚度、挠度、开裂荷载、极限荷载和破坏形式等承载性能的影响,通过理论计算结果与试验结果的比较分析,得出了粘钢加固RC梁承载力折减系数主要随截面相对高度变化的结论,提出了粘钢加固RC梁承载力折减系数、抗弯承载力和挠度的计算公式,给出了工程设计建议和确定合适钢板宽厚比、粘钢位置和粘钢量的技术措施,为粘钢加固RC梁的设计和承载力确定提供了参考依据。

Abstract:

By accomplishing tests of some RC beams, the deformation processes and destruction modes of those glued-steel RC beams under loading tests werecarried out. The effects of amount of glued-steel, positions andareas of steel plates on the bearing behavior of the RC beams, such as short periodrigidity, deflection, cracked load, ultimate load and destruction modeswere discussed. Through compared the theoretical results with the tested ones,it was found that the reduction coefficients of bearing capacity of glued-steelRC beams were mainly varied with the relative depth of compression zone. Theformulations of calculating reduction coefficients, bearing capacity of bendingand deflections were put forward. The designing suggestions and technique measures to decide the suitable width-to-thickness ratios, positions and areas of glued-steel RC beams were also presented. All these can be acted as the good reference for designing and determining bearing capacity of the RC beams strengthened by bonded steel plates.

参考文献/References:

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备注/Memo

备注/Memo:

收稿日期:2006-06-02
基金项目:江西省教育厅科技基金项目(2004-12)
作者简介:朱皓明(1962-),女,福建莆田人,工程师,E-mail:zhuhm@hqu.edu.cn。

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更新日期/Last Update: 2006-09-20