【摘要】 采用大型有限元软件ANSYS计算分析了波形钢腹板PC组合箱形连续刚构桥加速度多点激励随机振动响应,对桥梁进行力学建模分析,结果表明:在桥梁的顺桥向对基础施加2个不相干激励(加速度功率谱)时,波形钢腹板PC组合箱梁桥上部结构的跨中部分受到的影响最大,其位移量最大为3.5 cm,上部结构受影响程度从桥梁中部沿顺桥向向两侧递减。更多还原

【Abstract】 The finite element software ANSYS was used to analyze the stochastic vibration response of a PC box-shaped continuous rigid frame bridges with corrugated steel web under multi-point excitation. The simulation of the bridge shows: when two unrelated excitations( acceleration power spectrum) were applied to the foundation along the bridge,the influence on the upper structure of the mid-span of the PC box girder bridge with corrugated steel webs was the greatest( the maximum displacement is 3. 5cm),in addition,the influence on the upper structure was decreasing from the middle towards the sides.更多还原