Please wait a minute...
工程设计学报  2004, Vol. 11 Issue (1): 37-42    
工程设计理论、方法与技术     
超长框架结构温度应力的非线性研究
 干钢1, 李志磊2, 唐锦春2
1.浙江大学建筑设计研究院,浙江杭州 310027;
2.浙江大学土木工程系,浙江杭州 310027
Nonl inear research on temperature stress of over-long frame structure
 GAN  Gang1, LI  Zhi-Lei2, TANG  Jin-Chun2
1.Architectural Design and Research Iflstitute,Zhejiang University,Hangzhou 310027,China;
2.De partment of Civil Engineering,Zhejiang University,Hangzhou 310027,China
 全文: PDF(262 KB)   HTML
摘要: 针对目前超长框架结构温度应力分析多集中于混凝土的线弹性阶段的情况,借助于通用有限元软件ABAQUS,采用混凝土“涂抹式”裂缝模型,对一个典型的超长框架结构在承受渐变温度荷载下的裂缝开展及应力变化情况进行了数值模拟,同时对目前工程实践中无粘结预应力筋进行了初步的理论研究.分析表明:温度应力是引起混凝土板开裂的重要因素并且具有明显的非线性;混凝土“涂抹式”裂缝模型在模拟较大结构的整体响应时,能够满足一般的计算精度.
关键词: 超长涂抹式裂缝温度应力预应力    
Abstract: As the analysis on the temperature deformation of over-long frame structures is usually focused on the basis of material’S linear mechanic performance,the standard finite-element method strategy,based on the concepts of smeared cracking constitutive law ,is used in the version implemented in the commercial code ABAQUS by HKS.A representative over-long frame structure’S deformation under ramp temperature reduction is taken into account in order to simulate the cracking of concrete slab with proper numerical finite-element mode1.At the saree time,a preliminary study about the concrete slab prestressed with unbonded tendons is also performed.Through the analysis,some significant information can be obtained for designing and further study:(i)the temperature stress does an important roll in simulating concrete slab’s cracking process and has distinct nonlinear characteristic;(ii)concrete smeared cracking model can grasp structure’S global mechanic performance.
Key words: over-long    smeared cracking model    temperature stress    unbonded prestress reforcement
出版日期: 2004-02-28
基金资助:

浙江大学建筑设计研究院科研基金资助项目(JG-03-2003)

服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  
干钢
李志磊
唐锦春

引用本文:

干钢, 李志磊, 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.

GAN Gang, LI Zhi-Lei, TANG Jin-Chun. Nonl inear research on temperature stress of over-long frame structure[J]. Chinese Journal of Engineering Design, 2004, 11(1): 37-42.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/        https://www.zjujournals.com/gcsjxb/CN/Y2004/V11/I1/37

[1] 崔国华, 崔康康, 吴海淼, 张艳伟, 刘健. 预应力钢筒混凝土管端口打磨机器人的压紧力可靠性分析[J]. 工程设计学报, 2018, 25(6): 647-654.
[2] 邢丽, 董石麟, 曹喜. 面向对象的索穹顶结构优化设计程序结构[J]. 工程设计学报, 2004, 11(6): 351-356.
[3] 楼铁炯, 傅晓斌, 郭乙木. 基于M-Ф关系的工形PC弯曲梁的宏观分析模型[J]. 工程设计学报, 2004, 11(5): 284-287.
[4] 肖志斌, 马跃, 裘涛, 陆涵. 承托八层框架预应力转换梁设计研究[J]. 工程设计学报, 2003, 10(5): 295-298.
[5] 吴开成, 庄一舟, 韦国岐. 某车站预应力结构设计施工及监测[J]. 工程设计学报, 2003, 10(4): 219-223.