|本期目录/Table of Contents|

[1]贡金鑫,林园,魏巍巍.均布荷载下深梁设计的压杆-拉杆模型[J].建筑科学与工程学报,2009,26(03):20-26.
　GONG Jin-xin,LIN Yuan,WEI Wei-wei.Strut-and-tie Model of Deep Beam Design Under Uniform Distributed Loads[J].Journal of Architecture and Civil Engineering,2009,26(03):20-26.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
26卷
期数:
2009年03期
页码:
20-26
栏目:
出版日期:
2009-09-20

文章信息/Info

Title:
Strut-and-tie Model of Deep Beam Design Under Uniform Distributed Loads
作者:
贡金鑫，林园，魏巍巍
大连理工大学土木水利学院,辽宁大连116024
Author(s):
GONG Jin-xin, LIN Yuan, WEI Wei-wei
School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
关键词:
钢筋混凝土;  均布荷载;  深梁;  压杆-拉杆模型;  承载力
Keywords:
reinforced concrete;  uniform distributed load;  deep beam;  strut-and-tie model;  bearing capacity
分类号:
TU375.1
DOI:
-
文献标志码:
A
摘要:
为使钢筋混凝土深梁的设计建立于合理的理论基础之上,研究了基于压杆-拉杆模型的深梁设计方法。通过将均布荷载下的钢筋混凝土深梁简化为多个具有同一拉杆的简单桁架,建立了均布荷载下深梁的压杆-拉杆模型,推导出了拉杆拉力、压杆压应力的计算公式,并用一个实例验证了该方法。研究结果表明:在该模型中,与拉杆夹角为26.5°的斜压杆控制混凝土的强度,与拉杆夹角为90°的斜压杆控制限制裂缝的最小配筋量。
Abstract:
In order to make designs of deep beam based on appropriate theory, a design method of deep beam under uniform distributed loads by using strut-and-tie model was developed, for which the reinforced concrete deep beams were modeled as a serial of simple trusses with a common tie, and the equations for computing tension stress in tie and compression stress in strut were derived. An example was given to demonstrate its using model. The study results show that the diagonal strut with the angle 26.5° of tie controls the strength of concrete and strut with the angle 90° of tie controls the minimum reinforcement requirements for limiting cracks.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-04-11
基金项目:“十一五”国家科技支撑计划项目(2006BAJ01B06-06)
作者简介:贡金鑫(1964-),男,河北衡水人,教授,博士研究生导师,工学博士,E-mail:gong_jx.vip@eyou.com。
更新日期/Last Update: 2009-09-20