广东揭阳榕东大桥抗震咨询设计
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摘要
文章以广东揭阳榕东大桥的抗震设防咨询设计为例,在对原有设计抗震烈度区划和场地土标准进行了重新评价的基础上,结合该桥结构特性及其在地震力作用下的反应,调整优化了基础设计,并按现有交通行业规范及地震反应谱对原有设计抗震标准进行了验算,为工程建设减少投资,合理确定大桥的地震设防做了有益的工作。
The consultative anti-seismic design of Rongdong Bridge in Jieyang City,Guangdong Province is described. The seismic intensity regionalization and the classification of the site soil in the former design is reconsidered. Based on the structural characteristics of the bridge and the possible response of the bridge under seismic force,the foundation design is optimized. The anti-seismic level in the former design is checked according to the current communications specifications and the seismic response spectra. The anti-seismic level of the bridge is determined reasonably,and the construction cost of the bridge reduced.
引文
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