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Small-radius arch ring construction method of arch bridge of continuous slab

A small-radius continuous slab technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of arch ring formwork erection, concrete pouring, etc., and achieve cost saving, simple construction process and ideal construction effect

Active Publication Date: 2014-08-06
BEIJING URBAN CONSTR ROAD & BRIDGE GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for small-radius arch rings of arch bridges, to solve the technical problems of bottom slab concrete pouring; and to solve the problem of arch ring formwork erection

Method used

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  • Small-radius arch ring construction method of arch bridge of continuous slab
  • Small-radius arch ring construction method of arch bridge of continuous slab
  • Small-radius arch ring construction method of arch bridge of continuous slab

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Embodiment Construction

[0037] Examples see figure 1 Shown, 1, a kind of continuous slab arch bridge small-radius arch ring construction method is characterized in that: the steps are as follows:

[0038] Step 1, support the bottom plate formwork and side formwork of the arch ring, the bottom plate formwork includes the standard box slab arch bridge bottom plate formwork C, the bottom plate formwork limit device, the box slab arch bridge bottom plate compression mold formwork and the bottom plate lower formwork; The formwork C on the bottom plate of the box-shaped arch bridge and the die formwork on the bottom plate of the box-shaped arch bridge are all tied by the template limit device on the bottom plate and the lower formwork of the bottom plate; The formwork panel 11 and the lower formwork secondary keel 12 of the bottom form form.

[0039] Step 2, one-time symmetrical pouring of the arch feet at both ends of the arch ring;

[0040] Step 3: Concrete the bottom plate of the arch ring, the outer ...

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Abstract

The invention provides a small-radius arch ring construction method of an arch bridge of a continuous slab. A bottom board template consists of a standard box type board arch bridge bottom board upper template, a box type board arch bridge bottom board stamping template and a bottom board lower template; and the standard box type board arch bridge bottom board upper template and the box type board arch bridge bottom board stamping template are both connected with the bottom board lower template in a pulling manner through a limiting device. Pouring and die assembling can be realized simultaneously in a pouring process, so that the problem that a box type board arch bridge is difficult in concrete casting of the bottom board due to a large radian of the bottom board can be solved. Meanwhile, a main keel of a bottom board upper template and the box type board arch bridge bottom board stamping template uses micro-bend vertical steel tubes, and the two micro-bend vertical steel tubes form one group, so that the difficult problem that an inclined angle is formed between a bottom support and the main keel can be solved; and the cost of an auxiliary tool, which is increased in construction, can be saved. The method can be widely applied to the construction of an arch ring of the arch bridge.

Description

technical field [0001] The invention relates to a bridge construction method, in particular to an arch bridge construction method with arch rings. Background technique [0002] The arch rib of the box plate arch bridge adopts a box section, which can be a form of arch bridge built with reinforced concrete or steel. The cross-section hollowing rate of reinforced concrete box arch can reach 50% to 70%. Compared with the plate arch, it can greatly reduce the volume of masonry, reduce the weight, and save the cost of the upper and lower structures. It is widely used in In the bridge structure, however, due to the large radian of the bottom plate of the box-type arch bridge, it is difficult to vibrate the bottom plate concrete, and it is difficult to guarantee the quality of concrete pouring in actual construction. [0003] In addition, due to the traditional construction, square wood or square steel is generally used as the main keel for the erection of the arch ring support of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 赵德刚徐全明李广东荀学思杨晓春寇志强王莹陆文娟高成富张晶邢彬康强陆伟牛自豪
Owner BEIJING URBAN CONSTR ROAD & BRIDGE GROUP
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