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Swivel construction method for large span continuous beam which spans existing station

A technology with existing stations and construction methods, applied to bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as large swivel spans, tight construction schedules, and difficult construction

Active Publication Date: 2016-06-08
CHINA RAILWAY 20 BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the station has a large swivel span, heavy girders, high risk, tight construction period, and difficult construction

Method used

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  • Swivel construction method for large span continuous beam which spans existing station
  • Swivel construction method for large span continuous beam which spans existing station
  • Swivel construction method for large span continuous beam which spans existing station

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Embodiment Construction

[0101] like figure 1 Shown is a large-span continuous beam spanning the existing station swivel construction method, the long-span continuous beam constructed is a reinforced concrete box girder spanning the existing station; the front and rear ends of the long-span continuous beam are respectively supported on the first On the pier and the fourth pier and the front and rear ends of the span are respectively supported on the second pier 1 and the third pier 2, the first pier, the second pier 1, the third pier 2 and the The fourth pier is laid out from front to back along the longitudinal bridge direction of the large-span continuous beam constructed, and they are all reinforced concrete pier. The second pier 1 and the third pier 2 are respectively located at the two There are left and right sides of the station; the mid-span of the long-span continuous girder constructed is divided into mid-span front side beam section 3-1, mid-span closing section 3-2 and mid-span rear side b...

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Abstract

The invention discloses a swivel construction method for a large span continuous beam which spans an existing station. The constructed large span continuous beam is a reinforced concrete box beam which spans the existing station and the two ends of a middle span of the constructed large span continuous beam are supported on a second buttress and a third buttress correspondingly. A swivel construction process includes the steps that (1) swivel system construction is performed, specifically, swivel systems are constructed at the bottom of the second buttress and the bottom of the third buttress correspondingly, each swivel system comprises a lower supporting disc, an upper rotary disc, bridge swivel spherical hinges and a swivel hauling system, multiple supporting feet are disposed at the bottom of the upper rotary disc, and a lower bearing platform is provided with an annular sliding way where the supporting feet slide; (2) construction of the second buttress and the third buttress is performed; (3) construction of a front side beam body and a rear side beam body is conducted; and (4) plane swivel construction is carried out, specifically, the plane swivel construction is performed through the two swivel systems and the two swivel hauling systems. The swivel construction method for the large span continuous beam which spans the existing station is simple in steps, reasonable in design, easy and convenient to construct, good in using effect, capable of easily, conveniently and rapidly finishing the swivel construction process for the large span continuous beam spanning the existing station and safe in construction process.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a large-span continuous beam span existing station swivel construction method. Background technique [0002] At present, China's railway construction is in a golden period, and a large number of passenger dedicated lines and intercity railways have started and put into use one after another. The special technical requirements of passenger dedicated lines make it impossible to use level crossings like ordinary railways. What followed was an increase in the construction of the passenger dedicated line across the existing main railway lines, railway stations, and highways. The construction period for crossing is long, which has a great impact on the operation of the business line and highlights potential safety hazards. [0003] The bridge swivel construction is to use the ball joint with a small friction coefficient, the slideway and the turntable structure...

Claims

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Application Information

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IPC IPC(8): E01D21/08
CPCE01D21/08
Inventor 仲维玲李洁勇丁大有王克俭
Owner CHINA RAILWAY 20 BUREAU GRP
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