884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（清華大學(xué)土木工程系， 北京 100084）

［摘要］從概念上界定了結(jié)構(gòu)的設(shè)計(jì)基準(zhǔn)溫度、構(gòu)件制作溫度和構(gòu)件安裝溫度的概念，并揭示了前述各溫度之間的差異對(duì)車輻式結(jié)構(gòu)性能的影響，針對(duì)幾種不同的邊界條件和形式的車輻式結(jié)構(gòu)，推導(dǎo)了索力變化與溫度荷載的關(guān)系，并將有限元計(jì)算結(jié)果與理論推導(dǎo)結(jié)果進(jìn)行了對(duì)比。這些理論推導(dǎo)的結(jié)論，可以為車輻式結(jié)構(gòu)的設(shè)計(jì)和施工提供一定的參考。

［關(guān)鍵詞］車輻式結(jié)構(gòu)；溫度荷載；解析解；有限元分析

Research on the change of cables′internal force of spoke structures at initial pre-stress state due to temperature loads in construction process

Guo Yanlin, Tian Guangyu, Zhang Bohao, Wang Kun(Department of Civil Engineering, Tsinghua University, Beijing 100084,China)

Abstract:The structural design temperature, producing temperature and building temperature of members were defined, and the influence on performance of spoke structure was revealed when they have different values. Then the relation of temperature variation and temperature stress of spoke structure was studied according to several structural forms and boundary conditions. The theoretic solution was compared with finite element analysis result, and they both reached a good agreement. The conclusion is helpful for the design and construction of spoke structure.

Keywords:spoke structure; temperature load; theoretic solution; FEA

作者簡(jiǎn)介：郭彥林，博士，教授，博士生導(dǎo)師， Email:gyl@tsinghua.edu.cn。

參考文獻(xiàn)

［1］歐陽斌.