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LZDJ500T全液压步履式缆载吊机型式试验研究
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(柳州欧维姆机械股份有限公司,柳州 545005)

作者简介:

邓年春

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TU67

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Type test of LZDJ500T full hydraulic walking cable crane
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(Liuzhou OVM Machinery Co., Ltd., Liuzhou 545005,China)

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    摘要:

    缆载吊机是大跨度悬索桥主梁吊装施工的专用设备。全液压步履式缆载吊机的结构一般主要由主桁架梁、行走机构、动力系统、液压系统、控制系统和吊具系统等组成。在应用于实际桥梁过程中,它依托悬索桥的主缆作为支撑,进行移位行走和固位吊装。在应用于实际工程之前,缆载吊机应进行型式试验,试验内容包括模拟实桥吊装工况的静载试验和行走试验。针对湖南矮寨大桥主梁吊装开发了2台LZDJ5000T全液压步履式缆载吊机,为了进行型式试验,设计了一套试验装置进行支承和加载。加载过程中对关键截面关键点的应力和跨中挠度进行了测量。试验结果表明,静载试验的位移和变形测试值与理论值比较吻合,提升加载系统性能良好,行走试验中动作准确,整机性能良好。

    Abstract:

    Cable hoisting crane is a special equipment for hoisting the main beam of long span suspension bridge. The structure of full hydraulic walking cable crane is mainly composed of main truss beam, walking mechanism, power system, hydraulic system, control system and lifting system. In the process of being applied to the actual bridge, it relies on the main cable of the suspension bridge as the support to carry out the displacement walking and the fixation lifting. Before it is used in practical engineering, cable-borne crane should carry out type test, which includes static load test and walking test simulating real bridge hoisting condition. Two LZDJ5000T fully hydraulic walking cable hoist were developed for the main beam hoisting of Aizhai Bridge in Hunan Province. In order to carry out type test, a test device was designed for supporting and loading. The stress and mid-span deflection at the key point of the key section were measured during loading. The test results show that the displacement and deformation values of static load test are in good agreement with the theoretical values, and the performance of the loading system is good, the movement is accurate in walking test, and the performance of the whole machine is good.

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引用本文

Nianchun Deng, Shan Luo, Liuyi Wu, Xianhui Liu, Li Chen, Fulun Wei Type test of LZDJ500T full hydraulic walking cable crane. Prestress Technology 2012,16(04):3-10. 10.59238/j. pt.2012.04.001

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  • 在线发布日期: 2023-08-06
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