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Ejecting device and method for erection construction of continuous beam

A jacking device and a jacking technology, which are applied in the erection/assembly of bridges, bridge construction, bridges, etc., can solve the problems of large amount of jacks, complicated jacking process, and difficult synchronization of jack movements, etc., and achieve low investment cost, The effect of simple push method, easy installation, layout and operation

Active Publication Date: 2015-07-22
CHINA RAILWAY FIRST GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual construction process, the above-mentioned walking jacking device has problems such as the large amount of jacks used, the complicated jacking process, and the difficulty in realizing the synchronization of all jacks.

Method used

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  • Ejecting device and method for erection construction of continuous beam
  • Ejecting device and method for erection construction of continuous beam
  • Ejecting device and method for erection construction of continuous beam

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Embodiment Construction

[0068] Such as figure 1A pushing device for continuous beam erection construction shown includes M beam pushing mechanisms that simultaneously push the beam body 1 to be pushed horizontally and n groups of beam body pushing mechanisms that simultaneously lift the beam body 1 to be pushed. As for the vertical jacking mechanism, the structures of the M beam body jacking mechanisms are the same and they are all arranged on the same plane, wherein M is a positive integer and M≥2. The beam body 1 to be pushed is a continuous beam erected on N permanent piers 2, and the N permanent piers 2 are arranged from front to back along the circumferential direction and are all arranged on the same arc line C , where N is a positive integer and N≥M. The M beam pushing mechanisms are respectively arranged on the tops of the M permanent piers 2, and the permanent piers 2 provided with the beam pushing mechanisms on the tops of the piers are horizontal pushing piers. The n groups of vertical j...

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Abstract

The invention discloses an ejecting device for erection construction of a continuous beam. The device comprises M beam body ejecting mechanisms used for synchronously and horizontally ejecting beam bodies needing to be ejected, and n sets of vertical ejecting mechanisms used for synchronously ejecting the beam bodies needing to the ejected, the beam bodies needing to be ejected are the continuous beam erected on N permanent buttresses which are distributed on the same circular arc line C in the circumferential direction, and each beam ejecting mechanism comprises two horizontal ejecting and sliding mechanisms distributed in the tangent line direction of the circular arc line C and two correcting mechanisms used for carrying out left-and-right adjustment on the ejecting directions of the two horizontal ejecting and sliding mechanisms respectively. The device is simple in structure, reasonable in design, easy and convenient to use, safe and reliable in ejecting process and good in use effect. Meanwhile, an ejecting method for erection construction of the continuous beam is further disclosed. The ejecting method comprises the steps that firstly, preparation work before ejecting is carried out, and secondly, ejecting is carried out in multiple times in the time sequence. The method is simple in step, reasonable in design and convenient to implement, and the ejecting process is easy to control.

Description

technical field [0001] The invention belongs to the technical field of bridge erection construction, and in particular relates to a jacking device and a jacking method for continuous beam erection construction. Background technique [0002] Continuous beams refer to beams with three or more supports. Continuous beams have intermediate supports. The deformation and internal force of continuous beams are usually smaller than those of single-span beams, and they are widely used in practice. Nowadays, during the erection of continuous beams, when the erected continuous beams are jacked up, most of the jacking devices used are dragged by steel beams or concrete beams are poured section by section and then pushed section by section. In addition, there is a walking multi-point pushing device. However, when pushing a continuous beam with a long beam body and a large self-heavy weight, there are many problems in the existing pushing device. For example, when pushing a continuous be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 朱汝威孙书深童燕良侯园旗赵锋王永刚
Owner CHINA RAILWAY FIRST GRP CO LTD
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