本文在综合现有结构稳定性研究成果的基础上，结合起重机臂架实例，对细长结构的稳定性进行了研究。
Based on the existing research results of structural stability, stability of slender structure is studied in this paper with the actual example of crane boom.
臂架式起重机常采用变截面的臂架，臂架的自重、结构型式与主要尺寸对起重机的性能有重要的影响。
Boom crane often has a boom with varying cross section. Boom weight, its construction and main dimension significantly affects the crane performance.
臂架式起重机常采用变截面的臂架，臂架的自重、结构型式与主要尺寸对起重机的性能有重要的影响。
Boom crane often has a boom with varying cross section. Boom weight, its construction and main dimension significantly affects the crane performance.
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