|本期目录/Table of Contents|

[1]沈蒲生,孟焕陵.框筒结构梁柱截面基于剪力滞最小的合理高度[J].建筑科学与工程学报,2005,22(03):16-19.
　SHEN Pu-sheng,MENG Huan-ling.Reasonable section height of beam and column based on the minimum shear lag in framed tube structures[J].Journal of Architecture and Civil Engineering,2005,22(03):16-19.
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框筒结构梁柱截面基于剪力滞最小的合理高度(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
22卷
期数:
2005年03期
页码:
16-19
栏目:
出版日期:
2006-09-20

文章信息/Info

Title:
Reasonable section height of beam and column based on the minimum shear lag in framed tube structures
作者:
沈蒲生;孟焕陵;
湖南大学 土木工程学院,湖南 长沙 410082
Author(s):
SHEN Pu-sheng, MENG Huan-ling
School of Civil Engineering, Hunan University, Changsha 410082, China
关键词:
框筒结构;  等效连续体系;  剪力滞;  梁柱截面;  合理高度
Keywords:
framed tube structure;  equivalent continuous system;  shear lag;  section of beam and column;  reasonable height
分类号:
TU398.2
DOI:
-
文献标志码:
A
摘要:
基于等效连续化方法给出了框筒结构剪力滞系数,通过对结构高度、平面形状、角柱面积、跨高比等影响剪力滞的主要因素分析,探讨了减小剪力滞的有效方法。再利用优化原理,寻求梁柱的合理跨高比使得剪力滞效应达到最小,以便充分发挥框筒结构的空间整体性能,进而确定梁柱的合理截面高度及合理开洞率。给出了计算图表及计算步骤,并结合具体算例,验证了优化后的剪力滞系数较优化前明显减小。结果表明:该方法简单、实用,可供初步设计使用。
Abstract:
Shear lag coefficient in framed tube structures was put forward based on the equivalent continuous system method. According to the analysis of the main influence factors on shear lag such as structural height, plane shape, area of corner column, and the ratio of span to height, the valid ways to reduce shear lag were discussed. In order to make the shear lag effect minimum and take full of structural space overall function, the reasonable ratio of span to height was studied using the optimal principle, and the reasonable section height and hole rate can be obtained. Some diagrams were given, and an example was taken to find that the shear lag coefficient became less obvious after the optimization. It is shown that this method is accurate and convenient enough for use during the preliminary stage of design.

参考文献/References:

[1] 周锡元,阎维明,杨润林.建筑结构的隔震减振和振动控制[J].建筑结构学报,2002,23(2):2-12.
[2] FOUTCH D A, CHANG P C. A shear lag anomaly[J].J.Struct.Div.,ASCE,1982,108(7):1 653-1 658.
[3] SINGH Y, NAGPAL A K. Negative shear lag in frame-tube buildings[J].J.Struct.Engrg.,ASCE,1994,120(1):3 105-3 121.
[4] KHAN F R,AMIN N R.Analysis and design of frame tube structures for tall concrete buildings[J].Struct.Eng.,1973,51(3):85-92.
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[6] 陈岳辉,刘 斌.框筒结构中角柱刚度对结构内力分布影响的研究[J].结构工程师,1998,14(2):14-18.

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备注/Memo

备注/Memo:
收稿日期:2005-03-22
作者简介:沈蒲生(1939-),男,江西新淦人,湖南大学教授,博士生导师.E-mail:psshengl@163.com
更新日期/Last Update: 2006-09-20