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Support counter-force control device and method for multi-leg support system

A control device and support system technology, applied in the erection/assembly of bridges, bridges, buildings, etc., can solve problems such as inaccurate reaction force, and achieve the effects of balanced reaction force, simple system, and fast adjustment of outrigger reaction force

Active Publication Date: 2019-04-05
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this adjustment method requires constant replacement of disc springs according to different set values, and the reaction force of this method is not accurate

Method used

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  • Support counter-force control device and method for multi-leg support system
  • Support counter-force control device and method for multi-leg support system
  • Support counter-force control device and method for multi-leg support system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Combine below Figure 1 to Figure 3 , detailing the structural composition of the support reaction force control device for the multi-leg support system of the present invention. The main problem to be solved in this embodiment is how to accurately control the reaction force of the front outrigger when the bridge erecting machine 10 is in an unloaded state.

[0038] A support reaction force control device for a multi-leg support system. A cantilever assembled bridge erecting machine 10 is erected on the support system. The cantilever assembled bridge erecting machine 10 includes front legs 11, middle legs 12 and rear legs arranged in sequence. Legs 13, wherein the middle support leg 12 is positioned on the top of the pier 30 of the bridge assembly section 20, the rear support leg 13 is placed on the top of the pier 30 of the other bridge splicing section 20, the front support leg 11 and the middle support leg 12 Located on the same section of the bridge splicing sectio...

Embodiment 2

[0044] Please continue to refer Figure 1 to Figure 3 , the present embodiment provides a support reaction force control method of a multi-leg support system, the control method comprising the following steps:

[0045] Step 1. Provide a backup reaction force control device for the multi-leg support system. The cantilever assembly bridge erecting machine 10 is erected on the support system. The cantilever assembly bridge erecting machine 10 includes front outriggers 11 and middle outriggers 12 arranged in sequence. And rear outrigger 13, wherein, middle outrigger 12 is positioned at bridge pier 30 tops of bridge assembly section 20, rear outrigger 13 is placed on the top of pier 30 of another span bridge splicing section 20, front outrigger 11 and middle Outrigger 12 is located on the same section of bridge splicing section 20, and front outrigger 11 is arranged on the cantilever of bridge assembly section 20, and four supports 40 are arranged under front outrigger 11, and supp...

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PUM

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Abstract

The invention provides a support counter-force control device and method for a multi-leg support system, belongs to the technical field of construction support for bridges and long-span spatial structures, and aims at accurately controlling the counter-force of a front leg of a cantilever assembling bridge erecting machine in an unloaded state. A spiral sleeve is arranged under the support of a front leg arranged at a cantilever end and a hydraulic jack is arranged by matching with the spiral sleeve, a pressure control valve is arranged on the main pipe of a hydraulic jack oil tube, the totalsupport force is controlled by adjusting the amount of liquid in a hydraulic piston, after the adjustment of the support counter-force of the front leg is completed, by downward rotating the spiral sleeve, the spiral sleeve is supported on the upper surface of a splicing segment of the bridge and the transformation of the bearing system is carried out. Thus, through the principle of hydraulic communication, the purpose of balancing the counter-force of each support leg is realized.

Description

technical field [0001] The invention relates to the technical field of construction support for bridges and large-span space structures, in particular to a support reaction force control device and method for a multi-leg support system. Background technique [0002] Usually, the cantilever assembled bridge erecting machine has three outriggers, which are the front outrigger, middle outrigger and rear outrigger. The rear outrigger is placed on the top of another span pier, and the middle outrigger is located on the top of the assembled segment , the front outriggers are placed on the cantilever structure. From the perspective of safety control and line control of the cantilever assembly structure, the reaction force of the front outrigger must be controlled, and the reaction force during the construction process of the front outrigger is related to the reaction force under the no-load state of the bridge erecting machine, so it must be Accurately control the reaction force o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 李鑫奎况中华沈志勇周向阳
Owner SHANGHAI CONSTRUCTION GROUP