Method for positioning and mounting large-scale bridge support

A technology of bridge bearing and installation method, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of high positioning accuracy, affecting the overall force, and difficulty in gas discharge, so as to improve the overall force resistance and facilitate adjustment. Reliable, easy-to-follow results

Active Publication Date: 2009-04-22
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, now the general large-scale bridge supports are all orthotropic plate steel structures, which are independent closed structures in sub-regions. The steel seat plates of the supports are anchored simultaneously with the pad stones and the positioning accuracy is high, which results in concrete pouring of the pad stones. When the gas is difficult to discharge, it accumulates on the top surface of the pad stone to form a large number of air bubbles, causing a gap between the steel seat plate of the support and the pad stone, affecting the overall force

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  • Method for positioning and mounting large-scale bridge support
  • Method for positioning and mounting large-scale bridge support
  • Method for positioning and mounting large-scale bridge support

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] The invention provides a method for positioning and installing a large bridge support, the specific steps of which are as follows:

[0023] Step 1, making steel seat plate (see figure 1 ): The said steel seat plate is divided into 9 independent closed area structures according to 3×3, and a Φ300mm blanking hole 1 is reserved in the middle of the top surface of each independent closed area, and the surrounding area of ​​each independent closed area is 5cm away from the edge. A number of air outlets 3 are arranged, the size of the air outlets 3 is adapted to the particle size of the coarse aggregate in the concrete, so as to ensure that the air outlets 3 will not be blocked during concrete pouring, and a number of anchor bolts 2 are also arranged on each independent closed area;

[0024] Step 2. Accurately locate the steel seat plate of the support (see...

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Abstract

The invention provides a method for positioning and installing large-sized bridge supports, which relates to large-sized bridge construction. The method concretely comprises the following: 1. a step of manufacturing a steel baseplate; 2. a step of accurately positioning the steel baseplate of a support; 3. a step of grouting an anchor bolt hole; 4. pouring cushion stone concrete; and 5. maintaining pressure and blocking a vent hole. The method for positioning and installing large-sized bridge supports can ensure that gas is smoothly discharged when the cushion stone concrete is poured, ensure the close contact between the steel baseplate of the support and a cushion stone, and improve integral stress property.

Description

technical field [0001] The invention relates to the construction of a large bridge, in particular to a method for positioning and installing a large bridge support. Background technique [0002] For traditional bridge supports, anchor bolt holes are reserved during the construction of the pad stone, and the support is grouted and anchored after installation. Only the anchor bolt holes reserved during the pad stone can be accurately positioned to position the support, and the anchor bolt holes are grouted and anchored. Anchor bolts to fix the support. However, now the general large-scale bridge supports are all orthotropic plate steel structures, which are independent closed structures in sub-areas. The steel seat plates of the supports are anchored simultaneously with the pad stones and the positioning accuracy is high, which causes the concrete pouring of the pad stones. When the gas is difficult to discharge, it accumulates on the top surface of the pad stone to form a la...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/04
Inventor 秦顺全宋伟俊文武松潘军于祥君连泽平张耀军董广文龚国锋张爱民赵顺涛沈涛章德春朱丹彤吴杰良张君
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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