Temperature Dependent Bridge Movements
Temperature Dependent Bridge Movements
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DOI：
10.1061/(asce)0733-9445(1992)118:4(1090
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发表时间：
1992-04
期刊：
影响因子：
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通讯作者：
S. Moorty;C. Roeder
中科院分区：
文献类型：
--
作者：
S. Moorty;C. Roeder
研究了热环境条件下桥梁的响应。采用分析方法得到了温度分布和桥的最高温度范围。通过热弹性分析，得到了桥梁的温度运动和相关应力。对不同的桥梁几何形状、温度分布和支撑条件进行了参数化研究。并在某桥梁上进行了现场试验，验证了分析模型的正确性。分析表明，混凝土桥梁有时设计的温度范围和相应的热运动比实际预期的要小。分析表明，与美国许多地方的预期相比，带有复合混凝土桥面的钢桥有时设计用于更大的温度范围和热运动。倾斜和弯曲的桥梁通常表现出与通常预期不同的运动幅度和方向。额外的指导方针和建议…
The response of bridges exposed to thermal environment conditions is studied. Analytical methods are developed to obtain temperature distributions and the maximum bridge temperature ranges. Thermoelastic analysis is conducted to obtain the temperature induced movements and the associated stresses in bridges. Parametric studies are conducted for different bridge geometries, temperature distributions, and support conditions. A field test is conducted on a bridge to verify the analytical models. The analysis suggests that concrete bridges sometimes are designed for smaller temperature ranges and corresponding thermal movements than may be expected in practice. The analysis suggests that steel bridges with composite concrete decks sometimes are designed for larger temperature ranges and thermal movements than may be expected at many locations in the United States. Skew and curved bridges often exhibit magnitude and direction of movement that is different than commonly expected. Additional guidelines and recom...