| 薄壁空心高墩温度效应仿真分析 |
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| 引用本文： | 周妞妞,张运波.薄壁空心高墩温度效应仿真分析[J].石家庄铁道大学学报(自然科学版),2013(4):27-31. |
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| 作者姓名： | 周妞妞 张运波 |
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| 作者单位： | 石家庄铁道大学土木工程学院,河北石家庄050043 |
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| 摘 要： | 日照温度荷载作用下，混凝土薄壁空心高墩的应力和变形，是造成墩身工程事故的主要因素之一。以晋济高速公路仙神河大桥150．07m高的八边形薄壁空心高墩为研究对象，在ANSYS平台上进行二次开发，编制了薄壁空心高墩结构温度场和温差效应分析的专用程序，并给出实例验证了二次开发成果的准确性。同时利用二次开发成果，对八边形薄壁空心高墩在日照温差荷载作用下的温差效应进行了仿真分析。计算结果表明：日照引起的薄壁空心高墩结构的温差应力和变形较大，不容忽视。
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| 关 键 词： | 薄壁空心高墩 温度场 温度效应 仿真分析 |
Simulation of Temperature Effects for High Pier with Thin-Walled Hollow Sections |
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| Zhou Niuniu,Zhang Yunbo.Simulation of Temperature Effects for High Pier with Thin-Walled Hollow Sections[J].Journal of Shijiazhuang Railway Institute(Natural Science),2013(4):27-31. |
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| Authors: | Zhou Niuniu Zhang Yunbo |
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| Institution: | ( School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China) |
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| Abstract: | One of the main factors resulting in engineering accidents is the temperature stresses and deforma- tions of concrete high pier with thin-walled hollow sections under the action of solar temperature load. This paper chooses the XianShenHe bridge＇s 150.07 m high hollow octagonal pier of JinJi Highway as a research object, puts forward secondary development based on ANSYS platform and establishes a specific program which is used to analyze the temperature field and the temperature effects of the thin-walled hollow high pier structure, and presents examples to verify the accuracy of the the results of re-development. Meanwhile, using the re-develop- ment achievements, the paper analyzes the temperature effects of the the XianShenHe bridge＇s 150.07 m high hollow octagonal pier under the action of solar temperature load. The computed results show that the the thermal stresses and deformations of hollow high piers induced by solar temperature load are comparatively large, and can not be ignored. |
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| Keywords: | thin-walled hollow high pier temperature field temperature effect simulated analysis |
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