Based on some building’s needs for larger space with the inclined support conversion structure on the second floor to support the upper loading,the paper considers various simulation construction calculation methods,rechecks the bearing capacity of maior earthquakes,undertakes the analytic design for the inclined support conversion,and proves by the result that it has high efficiency,identical force transferring routes,and better anti-seismic performance,so it has positive comprehensive effect.%基于某工程因建筑大空间需求，在2层采用斜撑转换形式承担上部荷载的情况，考虑不同模拟施工计算方法并复核大震承载力，对斜撑转换进行了分析设计，结果表明：斜撑转换效率高、传力路径明确，具有良好的抗震性能，能起到较好的综合效应。
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