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。
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.
作者
陈栋
葛玉梅
CHEN Dong, GE Yumei(School of Mechanics and Engineering , Soth west Jiaotong University,Chengdu610031,Chin)
出处
《重庆理工大学学报（自然科学）》
CAS
北大核心
2018年第5期115-118,共4页
Journal of Chongqing University of Technology：Natural Science
基金
国家自然科学基金资助项目(51378437)
关键词
波形钢腹板桥
抗震分析
随机振动
加速度功率谱
不相干激励
corrugated steel web brdge
seismic analysis
stochastic vibration
acceleration powerspectrum
irrelevant excitation
