【摘要】 研究不同地区日照辐射强度差异对T梁桥温度梯度和力学行为的影响,针对四个典型辐射区分析了辐射强度变化规律,建立了考虑辐射强度和环境条件的T梁日照模型,研究了温度梯度及应力的变化规律,并与现行规范进行了对比,提出了强辐射区温度梯度取值建议。更多还原

【Abstract】 In order to study the influence of the different solar radiation intensity on the temperature gradient and mechanical behavior of T-beam bridges, this paper analysis the law of solar radiation intensity in the four typical regions with different radiation levels. Furthermore, the solar radiation model of T beam considering radiation intensity and environmental conditions is established. In addition, the temperature gradient and stress change law of T beam in four regions are studied, and the temperature gradient is compared with the current regulations. Finally, the temperature gradient values in areas with strong sun radiation are proposed.更多还原