TO IMPROVE CALCULATION OF DEFLECTION FOR CONCRETE STRUCTURAL MEMBER BY FINITE INTEGRAL METHOD

Zhao Yuxing; Chen Hui; Wu Rongkun; Jiang Lei

doi:10.13204/j.gyjz201201017

Volume 42 Issue 1

Dec. 2014

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Abstract

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(1): 89-93

Sun Tong, Wang Shi-qi, Hu Xia-min, Luo Wu-jian. RESEARCHES ON THE CALCULATION METHOD FOR BEARING CAPACITY OF CONCRETE FILLED STEEL TUBULAR COLUMNS UNDER ECCENTRIC LOAD[J]. INDUSTRIAL CONSTRUCTION, 2006, 36(5): 95-98. doi: 10.13204/j.gyjz200605025

Citation:

Zhao Yuxing, Chen Hui, Wu Rongkun, Jiang Lei. TO IMPROVE CALCULATION OF DEFLECTION FOR CONCRETE STRUCTURAL MEMBER BY FINITE INTEGRAL METHOD[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(1): 89-93. doi: 10.13204/j.gyjz201201017

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TO IMPROVE CALCULATION OF DEFLECTION FOR CONCRETE STRUCTURAL MEMBER BY FINITE INTEGRAL METHOD

doi: 10.13204/j.gyjz201201017

1.
1. School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;
2.
2. Department of Civil Engineering,Tongji University,Shanghai 200092,China;
3.
3. Jinan Sijian Group Construction Company,Jinan 250031,China;
4.
4. Shandong University of Science and Technology,Qingdao 266510,China

Received Date: 2011-09-09
Publish Date: 2012-01-20

Abstract

Abstract

The calculation of deflection for concrete structural member that was put forward in Code for Design of Concrete Structures was an approximate method.Similar methods were also put forward in some foreign codes or standards for concrete structures.The mentality for this kind of approximation calculation consisted of two steps.Firstly,curvature was calculated with bending moment.Secondly,deflection was calculated by curvature with the help of mechanics.It was unreasonable to calculate deflection by curvature with the help of mechanics.Essentially,the calculation of deflection by curvature was a geometric problem,and integral method should be used to resolve this problem.Based on the numerical equation between the deflection and its derivative or the relation between the derivatwe and the second derivative of deflection in finite integral solution,deflection-curvature matrix was derived by matrix operation,and the curvature-deflection equation was derived with functional relation (x)=-z(x).The curvature-deflection equations for some kinds of common boundary conditions were discussed.The methods and formulae of deflection calculation for concrete structural member were put forward.Calculation showed that it was convenient to improve the approximation calculation of deflection for concrete element by finite integral method.The accuracy of calculation was greatly improved.
- reinforced concrete structure,
- structural deflection,
- deflection calculation,
- analysis of curvature and deflection

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References(11)

References

TJ1074钢筋混凝土结构设计规范[S].

GBJ10一89混凝土结构设计规范[S].

GB50010--2002混凝土结构设计规范[S].

ACI 318-05 Building Code Requirments for Structural Concrete[S].

ACI 318-08 Building Code Requirments for Structural Concrete[S].

AS 3600-2009 Australian Standard:Concrete Structure[S].

CSA 23,3-0g Design of Concrete Structures[S].

EN 1992-1-1:2004 Eurocode 2:Design of Concrete Structures--Part 1-1 :General Rules and Rules for Buildings[S].

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陈骥. 钢结构稳定理论与设计[M].北京:科学出版社,2006.223-228.

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