Construction Technology of Line Reinforcement with Non-sliding Pile Lines Crossing Railway Under Long-span Diagonal Frame Bridge
A construction technique and frame-structure bridge technology, which is applied to roads, buildings, ballast layers, etc., can solve the problems of increased construction cost and extended construction period, and achieve the effects of reduced construction cost, convenient construction, and reduced resistance
Active Publication Date: 2020-10-09
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a large-span oblique frame bridge under the railway crossing-free pile line reinforcement construction technology to solve the problems existing in the prior art that the construction period is prolonged and the construction cost is increased due to the installation of anti-movement piles technical problem
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[0086] Further, as a specific implementation of the construction process for the reinforcement of the long-span oblique frame bridge under the railway crossing the anti-transverse pile line provided by the present invention, it further includes the following steps:
[0087] A. Construction preparation;
[0088] E. Set the longitudinal beam 80 on the cross beam 70 and connect it firmly;
[0089] I. Remove the longitudinal beam 80, pulling equipment 40, pulley 50, cross beam 70 and support frame;
[0090] Step A is before step B, step E is between step D and step F, and step I is after step H.
[0091] Further, as a specific embodiment of the construction technology for the reinforcement of the long-span oblique frame bridge under the railway crossing the anti-transverse pile line provided by the present invention, the support frame includes: a bracket body 10; a bracket 20 arranged on the bracket body 10 and used to support the cross beam 70; and the limit frame 30 is arranged on the su...
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The invention provides a large-span oblique crossing frame bridge under-railway anti-horizontal moving pile line reinforcement construction technology, and belongs to the technical field of road and bridge construction. In the jacking process, a support frame mainly bears the gravity of a line reinforcement beam transfer track and a train, and the stability of a system is facilitated. In addition,all tooling parts are arranged outside the working face, few concealed works exist, and quality control and field maintenance adjustment are better facilitated. Due to the fact that anti-horizontal moving piles and crown beams do not need to be arranged in advance, support frame erecting only takes very short construction time, the influence of intersecting with railway construction is reduced, the line reinforcement construction period is shortened, and the construction progress is greatly accelerated. Meanwhile, an original cast-in-place reinforced concrete structure is replaced with a button type support, I-shaped steel and other revolving materials, and the construction cost is greatly lowered. The technology is significant in economic benefit and duration benefit, and has great popularization value.
Description
Technical field [0001] The invention belongs to the technical field of road and bridge construction, and more specifically, relates to a construction process for strengthening a line with a large-span oblique cross frame bridge under-crossing a railway without anti-transverse piles. Background technique [0002] At present, with the vigorous development of expressways in our country, it is inevitable that new expressways and existing railway routes will cross, and the jacking construction of under-passing railway frame bridges is also more and more widely used. Prior to jacking construction, the existing railway should be reinforced. The usual method of line reinforcement is to use H-shaped steel longitudinal beams with horizontal lifting and vertical picking method to arrange I-beam beams and protective piles, supporting piles, and anti-moving piles to form line reinforcement. System to prevent lateral movement of railway tracks. The anti-movement piles are located in the jacki...
Claims
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IPC IPC(8): E01B1/00
CPCE01B1/005
Inventor 郎志军乔海洋王光辉
Owner CHINA CONSTR SEVENTH ENG DIVISION CORP LTD