|本期目录/Table of Contents|

[1]林园,贡金鑫,李荣庆.2个移动荷载下深梁设计的压杆-拉杆模型[J].建筑科学与工程学报,2008,25(04):58-64.
　LIN Yuan,GONG Jin-xin,LI Rong-qing.Strut-and-tie Model of Deep Beam Design Subjected to Two Movable Loads[J].Journal of Architecture and Civil Engineering,2008,25(04):58-64.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
25卷
期数:
2008年04期
页码:
58-64
栏目:
出版日期:
2008-12-20

文章信息/Info

Title:
Strut-and-tie Model of Deep Beam Design Subjected to Two Movable Loads
作者:
林园，贡金鑫，李荣庆
大连理工大学土木水利学院,辽宁大连116024
Author(s):
LIN Yuan, GONG Jin-xin, LI Rong-qing
School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
关键词:
结构工程;  压杆-拉杆模型;  深梁;  钢筋混凝土;  移动荷载;  承载力
Keywords:
structural engineering;  strut-and-tie model;  deep beam;  reinforced concrete;  movable load;  bearing capacity
分类号:
TU375.1
DOI:
-
文献标志码:
A
摘要:
为使深梁的设计建立于合理的理论基础之上,采用压杆-拉杆模型的设计方法对2个间距一定的移动荷载下的钢筋混凝土深梁进行设计。建立了2个移动荷载下深梁拓扑结构变化的压杆-拉杆模型,给出了拉杆拉力、压杆压应力的计算公式,并用一个实例验证了该方法的合理性。结果表明:当荷载移动到深梁接近跨中的某一位置时,拉杆承受的拉力最大,应以此确定需要的纵向受拉钢筋面积; 当荷载移动到深梁接近于支座时,混凝土压杆的压应力最大,应通过压应力得出深梁的截面尺寸及混凝土的抗压强度。
Abstract:
Reinforced concrete deep beams subjected to two movable loads with constant distance were designed using strut-and-tie model, making it possible to design based on reasonable theory. Strut-and-tie model of topology change for deep beams with two applied loads were properly established and the equations for computing tension in tie and compression in strut were developed. An example was included to demonstrate its use. The results show that the tension in tie approachs maximum when the loads move to a certain location close to mid-span, which will determine the required area of longitudinal tension reinforcement; and the compression in strut approachs maximum when the loads move to a certain location close to support, which will determine the geometry of the deep beam and the compression strength of concrete.

参考文献/References:

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[10]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.
　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(04):20.

备注/Memo

备注/Memo:
收稿日期:2008-07-15
基金项目:“十一五”国家科技支撑计划项目(2006BAJ01B06-06)
作者简介:林 园(1983-),女,辽宁沈阳人,工学硕士研究生,E-mail:linyuan_0308@163.com。
更新日期/Last Update: 2008-12-20