基于Midas GTS NX的南宁某市政管廊抗震分析与计算

The seismic analysis and calculation of Nanning municipal tube corridor based on Midas GTS NX

针对南宁地区地质水文条件,采用Midas GTS NX模块建立有限元模型。基于南宁市某核心区市政管廊试验段现场实测条件,分别计算地震荷载作用下矩形截面单元与圆形截面单元结构位移与应力,并结合相关标准与国家规定,提出结构物抗震分析判断结果,为今后市政管廊抗震分析提供支持。结果表明:地震荷载作用下,矩形截面单元与圆形截面单元均满足设计规范,结构物安全可靠。

The finite element model is established using Midas GTS NX module according to the geological and hydrological conditions of Nanning region.Based on the test field condition of Nanning municipal tube corridor,the structure displacements and stresses of the rectangular cross section unit and the circular cross section unit under the seismic load are respectively calculated and the fabric anti-earthquake analysis results are obtained according to the relevant standard and national regulation,which provide support for the anti-earthquake analysis of the municipal tube corridor.The results show that under seismic load,the rectangular section unit and the circular section unit meet the design criterion,and the structure is safe and reliable.