火电厂主厂房混凝土结构温变效应研究

代慧娟; 白国良; 孙鹏; 朱佳宁

doi:10.13204/j.gyjz201301009

火电厂主厂房混凝土结构温变效应研究

doi: 10.13204/j.gyjz201301009

1.
西安建筑科技大学土木工程学院,西安710055

基金项目:

国家自然科学基金面上项目(51178383)

详细信息

作者简介:
代慧娟,女,1985年出生,博士研究生. 电子信箱:daihuijuan1985@163.com

中图分类号: TU375
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- 文章访问数: 101
- HTML全文浏览量: 10
- PDF下载量: 61
- 被引次数: 0
出版历程
- 收稿日期: 2011-11-10
- 刊出日期: 2013-01-20

THE STUDY ON TEMPERATURE RESPONSE FOR CONCRETE MAIN WORKSHOP IN LARGE-SCALE HEAT-ENGINE PLANT

1.
College of Civil Engineering,Xi'an University of Architecture &Technology,Xi'an 710055,China

摘要

摘要: 火电厂主厂房作为超长板式混凝土结构,受温度作用的影响较大,已引起结构设计人员的高度重视。引入温度折减系数以考虑结构的松弛徐变,塑性发展,裂缝对构件、结构层刚度的折减,提出计算温差的取值方法。基于结构概率极限状态设计法及荷载(作用)组合原则,分析温度作用概率模型,给出超长混凝土框架结构温度作用组合系数的建议取值。最后,以某火电厂主厂房为算例,对其温度效应进行分析。
- 火电厂主厂房 /
- 混凝土结构 /
- 温度折减系数 /
- 计算温差 /
- 有限元分析
Abstract: As super-long plate concrete structure,the large-scale heat-engine plant is suffered temperature effect seriously.For this reason,it has attracted the attention of the structural designers.It was introduced temperature reduction factor to consider structure relaxation creep and plastic development,cracks of component,structure layer stiffness,and was put forward the temperature value calculation method.Base on the structure probability limit state design method and load combination principle,it was analysed the probability model of temperature effect,the recommended value of combination coefficients of temperature effect for over-long concrete frame structures was proposed.Finally,it was set a heat-engine plant concrete structure for example to analyze the temperature effects of the main workshop structure.
- heat-engine plant /
- concrete structure /
- temperature reduction coefficient /
- calculation of temperature difference /
- finite element analysis

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参考文献(15)

[2] 潘振达.火力发电厂超长框架结构温度效应分析及裂缝控制研究[D].浙江大学:2010.

GB 500102010混凝土结构设计规范[S].

[3] 李志磊,干钢,唐锦春.超长框架结构温度应力的非线性研究[J].工程设计学报,2004,11(1):37-42.

[4] 王铁梦.工程结构裂缝控制[M].北京:中国建筑工业出版社,1997:120-121.

[5] 龚洛书.混凝土实用手册[M].2版.北京:中国建筑工业出版社,1995:304-308.

[6] 王勋文,潘家英.按龄期调整有效模量法中老化系数的取值问题[J].中国铁道科学,1996,17(3):12-23.

[7] Gardner N J,Zhao J W. Creep and Shrinkage Revisited[J]. ACIMaterial Journal,1993,(5/6):236-246.

[8] Gardner N J,Lockman M J. Design Provision for Drying Shrinkageand Creep Normal-Strength Concrete[J]. ACI Materials Journal,2001,(3/4):159-167.

[9] Al-Manaseer A,Lam Jian-Ping. Statistical Evaluation of Shrinkageand Creep Models[J]. ACI Materials Journal,2005,(5/6):170-176.

[10] Gardner N J. Comparison of Prediction Provision for DryingShrinkage and Creep of Normal-Strength Concretes[J]. Can. J.Civ. Eng,2004,31:767-775.

[11] Goel R,Kumar R,Paul D K. Comparative Study of Various Creepang Shrinkage Prediction Model for Concrete [J]. Journal ofMaterial in Civil Engineering,2007(3):249-260.

[12] 夏坚.超长混凝土结构收缩当量温差计算分析[J].福建建设科技,2008,11(1):8-9.

[13] GB 500092001建筑结构荷载规范(2006年版)[S].

[14] 樊江,陶燕.框架结构温度应力的简化计算及裂缝控制[J].工程力学,2000,10(1):419-424.

[15] 樊小卿.温度作用与结构设计[J].建筑结构学报,1999,20(2):43-50.

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