预应力混凝土箱梁桥日照温度效应计算软件的编制  

Calculation Software Development for Temperature Effect Due to Solar Radiation on PC Box Girder Bridge

作　　者：葛俊颖[1] 丁啸宇 张耀东[3] 

机构地区：[1]石家庄铁道学院,石家庄市050043 [2]中交路桥技术有限公司,北京市100102 [3]内蒙古农业大学能源与交通工程学院森林工程系,呼和浩特市010010

出　　处：《公路》2010年第3期82-86,共5页Highway

基　　金：国家自然科学基金资助项目;项目编号50878135

摘　　要：根据热传导理论建立预应力混凝土箱梁桥日照温度分布的分析模型,该模型考虑气候条件、桥梁地理位置、方位、材料特性、结构尺寸、翼缘板对腹板的遮阴作用等各种因素的影响,再通过热结构耦合方法将截面上各处不同的温度转换到结构单元的截面上,从而实现箱梁桥温度应力和温度变形的计算,对ANSYS进行二次开发,利用APDL、UIDL和TCL/TK将上述功能内嵌于ANSYS软件中,方便使用。On the basis of the heat transfer theory, an analytical model is established for predicting the nonlinear temperature distributions in PC box girder bridge subjected to solar radiation. The model takes into account the effects of the climatic conditions, location, orientation, geometry and the material properties of the box girder bridge. With the method of thermal-structural coupling analysis, the temperature load is transformed from thermal model to the structural model, and so the temperature effect can be calculated. With UIDL, APDL and TCL/TK, secondary development which is embeded in ANSYS is done and the program of calculating temperature effect is very convenient .

关 键 词：预应力混凝土箱梁 日照 温度效应 有限元法 

分 类 号：U441.5[建筑科学—桥梁与隧道工程]