| 收缩、徐变对无伸缩缝桥梁的影响 |
| |
| 引用本文： | 王磊,张书建,王志鹏,王志斌. 收缩、徐变对无伸缩缝桥梁的影响[J]. 吉林大学学报(工学版), 2008, 0(Z2) |
| |
| 作者姓名： | 王磊 张书建 王志鹏 王志斌 |
| |
| 作者单位： | 吉林大学建设工程学院;吉林省高等级公路建设局;吉林省公路勘测设计院; |
| |
| 基金项目： | 吉林省交通科技计划项目(2004-5-8)． |
| |
| 摘 要： | 无伸缩缝桥梁结构的特殊性决定了其受力的复杂性,由温度、收缩、徐变等引起的应力重分布很难确定,故基于线性叠加原理推导出考虑徐变情况下弹性应变的折减系数递推公式。采用VBA编程基于Excel实现了数值计算,在考虑徐变对温度应变及收缩应变影响的情况下,给出了弹性应变的折减系数,为无伸缩缝桥梁在北方地区的建造提供了一定的理论依据。
|
| 关 键 词： | 道路工程 无伸缩缝桥梁 收缩 徐变 折减系数 |
Effects of shrinkage and creep on jointless bridges |
| |
| WANG Lei ZHANG Shu-jian WANG Zhi-peng WANG Zhi-bin. Effects of shrinkage and creep on jointless bridges[J]. Journal of Jilin University:Eng and Technol Ed, 2008, 0(Z2) |
| |
| Authors: | WANG Lei ZHANG Shu-jian WANG Zhi-peng WANG Zhi-bin |
| |
| Affiliation: | 1.College of Construction Engeering;Jilin University;Changchun 130026;China;2.Jilin Provincial High Class Highway Construction Bureau;Changchun 130062;3.Jilin Highway Survey and Design Institute;Changchun 130021;China |
| |
| Abstract: | The special structure of the jointless bridge determines its complex mechanical behavior.The real behavior of integral abutment bridges is extremely complex because of the development of secondary forces due to movements induced by temperature,creep,and shrinkage.Taking into account the influence of creep,the recurrence formula of the elastic strain was deduced based on the principle of linear superposition,and the reduction coefficient of the elastic strain was given with the help of VBA,providing a theore... |
| |
| Keywords: | road engineering jointless bridges shrinkage creep reduction coefficient |
| 本文献已被 CNKI 等数据库收录！ |
