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Assembly type large-tonnage girder erection hoister and girder erection method

A beam erecting crane and large-tonnage technology, which is applied in the erection/assembly of bridges, bridges, cranes, etc., can solve the problems of cumbersome installation and dismantling, heavy installation and dismantling workload, and long construction period, so as to save the construction period of beam erection , The effect of reducing the workload of assembly and dismantling

Pending Publication Date: 2020-08-14
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the scattered and large number of components of the existing large-tonnage girder cranes, the installation and dismantling operations are cumbersome, resulting in a large installation and disassembly workload and a long construction period

Method used

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  • Assembly type large-tonnage girder erection hoister and girder erection method
  • Assembly type large-tonnage girder erection hoister and girder erection method
  • Assembly type large-tonnage girder erection hoister and girder erection method

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Embodiment Construction

[0043] Taking cable-stayed bridge construction as an example below, the present invention will be described in further detail in conjunction with the accompanying drawings and embodiments.

[0044] see figure 1 with figure 2 As shown, the embodiment of the present invention provides an assembled large-tonnage girder crane, which includes: a first pre-installed frame A and a second pre-installed frame A', the first pre-installed frame A and the second pre-installed frame Both pre-assembled racks A' include:

[0045] - two girder girders 100;

[0046] - the front beam 201, the middle beam 202, and the rear beam 203 connected between the two girders 100;

[0047] An intermediate connection assembly B, the intermediate connection assembly B is connected between the first pre-installed rack A and the second pre-installed rack A';

[0048] A spreader 401 and a lifting assembly 402 connected to the first pre-installed frame A and the second pre-installed frame A'.

[0049] In t...

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Abstract

The invention discloses an assembly type large-tonnage girder erection hoister and a girder erection method and relates to the technical field of bridge engineering construction equipment. The assembly type large-tonnage girder erection hoister comprises a first preassembled rack A, a second preassembled rack A', an intermediate connecting assembly B, a lifting tool 401 and a hoisting assembly 402, wherein the lifting tool 401 and the hoisting assembly 402 are connected with the first preassembled rack A and the second preassembled rack A'; the first preassembled rack A and the second preassembled rack A' each comprise two girder plates 100, a cross beam 201, a middle cross beam 202 and a rear cross beam 203, and the cross beam 201, the middle cross beam 202 and the rear cross beam 203 areconnected between the two girder plates 100; and the intermediate connecting assembly B is connected between the first preassembled rack A and the second preassembled rack A'. The assembly type large-tonnage girder erection hoister provided by the invention can be modularly assembled or disassembled, is easy to assemble or disassemble, convenient to install and dismantle and capable of shorteningthe construction period.

Description

technical field [0001] The invention relates to the technical field of bridge engineering construction equipment, in particular to an assembled large-tonnage beam-erecting crane and a beam-erecting method. Background technique [0002] At present, there are basically two methods of erecting steel bridges at home and abroad: loose assembly and segmental hoisting. Affected by the lifting capacity of the crane, the railway truss bridges built in the early days in China were basically assembled in pieces. On-site bar splicing and bolt screwing required a lot of work, high-altitude construction, and poor working environment. With the improvement of manufacturing technology, erection technology and crane lifting capacity, the Chongqing Caiyuanba Yangtze River Bridge and Wuhan Tianxingzhou Yangtze River Bridge built in China in recent years have adopted the method of segmental hoisting and erection. Segmental hoisting is adopted, and a large number of bar splicing and bolt screwin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/20B66C23/62E01D21/00
CPCB66C23/202B66C23/62E01D21/00
Inventor 陈涛罗兵查道宏李军堂姚森张文斌胡勇毛伟琦潘东发胡杰杨浩宋宇亮崔一兵涂满明贾维君舒海华张耿
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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