【摘要】 高原地区超高墩连续刚构桥面临强风与复杂温度场的双重挑战，为研究其耦合作用下的结构响应，文中评估了风荷载对墩身垂直度与温度应力的影响。基于现场风速监测数据，采用ANSYS建立含初始几何缺陷的双肢薄壁墩与矩形空心墩有限元模型，并进行瞬态动力学分析。结果表明风荷载导致墩顶位移随风速增大呈指数增长，温度应力显著降低。虽然高风速加剧墩身变形，但通过增强表面对流换热有效抑制温度梯度，对高墩结构的抗风与温度应力控制具有双重影响。研究可为高原地区超高墩连续刚构桥的设计施工与风荷载分析提供参考。更多还原

【Abstract】 Continuous rigid-frame bridges with super-high piers in plateau regions face dual challenges from strong winds and complex temperature fields. To investigate the coupled effects of these factors, this study evaluates the influence of wind loads on pier verticality and temperature-induced stresses. Based on field wind speed monitoring data, finite element models of twin thin-walled piers and rectangular hollow piers with initial geometric imperfections were developed in ANSYS, and transient dynamic analyses were performed. The results show that wind-induced pier-top displacements increase exponentially with wind speed, while temperature stresses are significantly reduced.Although high wind speeds aggravate pier deformations, enhanced surface convective heat transfer effectively suppresses temperature gradients, producing dual effects on wind resistance and temperature stress control of tall piers.The findings provide useful references for the design, construction, and wind load assessment of continuous rigid-frame bridges with super-high piers in plateau regions.更多还原