Combining with the fact in the Military Museum along No.9 Beijing Subway,the paper adopts PBA reverse building method,analyzes the stress changes on the station structure under various controlling construction circumstances with ansys model,so as to identify the stressed features of the station structure and lower the construction risks.%结合北京地铁9号线军事博物馆站的实际情况,采用PBA逆作法施工双层三跨式车站结构,并通过ansys模型分析了施工中不同的控制工况下,车站结构受力变化情况,从而明确车站结构施工受力特点,减少施工风险.
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