竖向荷载作用下带现浇楼板的连续梁受力性能试验研究

蒋利学

doi:10.13204/j.gyjz200911015

竖向荷载作用下带现浇楼板的连续梁受力性能试验研究

doi: 10.13204/j.gyjz200911015

蒋利学^1,2

1.
1. 上海市建筑科学研究院,上海 200032;
2.
2. 上海市工程结构新技术重点实验室,上海 200032

基金项目:

国家科技支撑计划项目(2006BAJ03A07);建设部研究开发项目(2007-K3-16)

详细信息

作者简介:
蒋利学，男，1971年7月出生，高级工程师，硕士。E-mail:jianglixue@sohu.com

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- 文章访问数: 78
- HTML全文浏览量: 6
- PDF下载量: 33
- 被引次数: 0
出版历程
- 收稿日期: 2008-11-05
- 刊出日期: 2009-11-20

EXPERIMENTAL STUDY ON STRUCTURAL BEHAVIOR OF R/C CONTINUOUS BEAMS WITH CAST-IN-SITU SLABS UNDER VERTICAL LOAD

Jiang Lixue^1,2

1.
1. Shanghai Research Institute of Building Sciences,Shanghai 200032,China;
2.
2. Shanghai Key Laboratory of New Technology for Engineering Structures,Shanghai 200032,China

摘要

摘要: 因梁端钢筋较少的现浇钢筋混凝土框架结构房屋评估改造的需要,对7根带现浇楼板的连续梁进行了竖向静力加载对比试验,研究现浇楼板对连续梁受力性能的影响,分析受压翼缘内混凝土与受拉翼缘内钢筋的应力分布规律以及有效翼缘宽度的变化规律。试验结果表明:现浇楼板对梁的截面应力状态、刚度、破坏模式和承载力均有很大影响,对支座截面抗弯承载力的提高作用尤其明显。
- 现浇楼板 /
- 连续梁 /
- 受力性能 /
- 试验 /
- 有效翼缘宽度
Abstract: For the purpose of evaluating and retrofitting of cast-in-situ reinforced concrete frames with little reinforcement at beam ends,tests are performed for 7 reinforced concrete continuous beams with cast-in-situ slabs under vertical static load.The effects of cast-in-situ slabs on the structural behavior of continuous beams are studied.Moreover,the stress distribution of concrete and reinforcement in the flange and the change of effective flange width are analyzed.The test results show that the cast-in-situ slabs have notable effects on the stress state,stiffness,failure mode and load-carrying capacity of beams,the increase in the beam flexural strength of support section is especially significant.
- cast-in-situ slab /
- continuous beam /
- structural behavior /
- test /
- effective flange width

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参考文献(7)

Shahrooz B M,Moehle J P.Evaluation of Seismic Performance ofReinforced Concrete Frames[J].Journal of Structural Engineering ofASCE,1990,116(5):1403-1422.

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[4] 王志远,魏琏,蓝宗建.考虑钢筋混凝土梁板结构相互作用时楼板合理设计方法的研究[J].建筑结构,2003,33(9):47-51.

[5] 张剑,傅学怡,刘畅.重力荷载作用下钢筋混凝土框架梁平板楼盖分析[J].建筑结构,2003,33(11):45-49.

[6] Amadio C,Fragiacomo M.Effective Width Evaluation of Steel-concrete Composite Beams[J].Journal of Constructional SteelResearch,2002,58(4):373-388.

[7] GB 500102002混凝土结构设计规范[S].

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