|Table of Contents|

Reasonable section height of beam and column based on the minimum shear lag in framed tube structures(PDF)

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

Issue:
2005年03期
Page:
16-19
Research Field:
Publishing date:
2006-09-20

Info

Title:
Reasonable section height of beam and column based on the minimum shear lag in framed tube structures
Author(s):
SHEN Pu-sheng;  MENG Huan-ling
School of Civil Engineering, Hunan University, Changsha 410082, China
Keywords:
framed tube structure;  equivalent continuous system;  shear lag;  section of beam and column;  reasonable height
PACS:
TU398.2
DOI:
-
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.

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.
[5] HA K H, FAZIO P P, MOSELHI O. Orthotropic membrane for tall building analysis[J].J.Struct.Div.,ASCE,1978,104(9):1 495-1 505.
[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.

Memo

Memo:
-
Last Update: 2006-09-20