﻿ 施工升降机单肢稳定性计算校核

# 施工升降机单肢稳定性计算校核Calculation and Verification of Single Limb Stability of Construction Lifts

Abstract: In the design of the construction elevator, the problem of insufficient attention to the calculation of the stability of the single limbs is found, which leads to the fact that only the stability stress of the rail frame is less than the allowable stress in the design. In the course of use, stable phenomenon, according to GB26557-2011 “hanging cage with vertical guide the dual-use construction of the lift,” the relevant provisions of the comparison through the rails under the conditions of the load should be calculated under different load combinations, put forward the exception of the safety device. The most dangerous working conditions of the single limb are analyzed and compared with all the dangerous sections of the rail frame under the most dangerous conditions. It is determined that the cage is located in the middle of the guide rail frame and the bottom frame and the bottom. The cross section of the middle section of the middle frame is the most dangerous section, and the verification method of the single limb stability calculation under the most dangerous cross section of the most dangerous condition is given. Taking the SC200/200 construction lifts as an example, the stability of the single limbs is checked, which explains the reason why the construction lifts are widely used and the instability of the rails after the impact is large.

[1] 胡燕东. 工程起重机中超静定桁架结构的弹性稳定性分析[D]: [硕士学位论文]. 哈尔滨: 哈尔滨工业大学, 2010.

[2] 肖洪涛, 张磊, 陈浩, 王红格, 郑可勇. 齿轮齿条式永久升降机浅析及应用[J]. 建筑机械化, 2017, 38(7): 34-36.

[3] GB/T 26557-2011, 吊笼有垂直导向的人货两用施工升降机[S].

[4] 王积永, 张青, 沈孝琴, 等. 起重机械钢结构设计[M]. 北京: 化学工业出版社, 2011.

[5] 李家宝, 洪范文, 童桦, 等. 结构力学[M]. 北京: 高等教育出版社, 2005.

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