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为得到带端撑750 k V变电构架不同根开下的最优方案,采用SAP 2000软件对进出线根开尺寸为6,7,8 m的钢管混凝土人字柱变电构架进行有限元分析,并对纯钢管变电构架和各根开情况下的钢管混凝土变电构架结构的截面尺寸进行初步设计,分析其经济性。结果表明:在满足承载力要求的前提下,根开尺寸为8 m的方案为最优方案,具有一定的经济效益。
In order to obtain the optimal scheme of 750 kV substation with end support under different roots, finite element analysis was carried out using SAP 2000 software on the concrete-filled steel tube column with 6,7,8 m entry and exit wires , And the design of the section size of the pure steel tube substation structure and the concrete-filled steel tube (CFST) substation structure under all open conditions is carried out, and its economy is analyzed. The results show that under the premise of meeting the requirements of bearing capacity, the plan with root opening size of 8 m is the optimal scheme with certain economic benefits.