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Construction method of foundation bolts of railway contact net and mounting bracket

A technology for anchor bolts and mounting brackets, which is applied in infrastructure engineering, erection/assembly of bridges, bridges, etc., and can solve the problems of elevation accuracy, substandard verticality, railway engineering quality defects, difficult construction, and pre-embedded position offsets, etc. problems, to avoid repeated measurement and adjustment, reduce construction difficulty, and achieve the effect of precise positioning and installation

Active Publication Date: 2016-07-27
SINOHYDRO ENG BUREAU 4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation of anchor bolts often requires repeated measurements and adjustments. The construction is difficult and inefficient. The pre-embedded position is offset, and the elevation accuracy and verticality are not up to standard, which will lead to large quality defects in railway projects and hidden safety hazards.

Method used

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  • Construction method of foundation bolts of railway contact net and mounting bracket
  • Construction method of foundation bolts of railway contact net and mounting bracket

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The invention protects a construction method for the anchor bolts of a railway catenary, comprising the following steps:

[0027] Step 1: Check whether the specifications and materials of the anchor bolts meet the requirements;

[0028] Step 2: The anchor bolts are arranged in groups, and each group of anchor bolts is covered with a block limiting plate, and the block limiting plates are relatively fixed to the anchor bolts through upper and lower anchor nuts;

[0029] Step 3: Use the bridge pier formwork to measure and stake out the spatial position of the anchor bolts, determine the centerline and center point of the fixed anchor bolt space positioning bracket, and mark it on the bridge pier formwork surface;

[0030] Step 4: According to the annotation made in step 3, install the anchor bolt installation bracket, the installation bracket includes a vertical positioning strut, a fixed limit bracket and a space positioning bracket, and the lower end of the vertical pos...

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PUM

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Abstract

The invention discloses a construction method of foundation bolts of a railway contact net and a mounting bracket. The mounting bracket comprises multiple vertical positioning support rods, a fixed limiting bracket, a space positioning bracket and multiple split limiting plates; the split limiting plates coat one set of foundation bolts with near positions, and are relatively fixed with the foundation bolts through upper and lower anchor nuts; the lower ends of the vertical positioning support rods are fixed according to the corresponding mounting positions of the foundation bolts, and the upper ends are inserted through the fixed limiting bracket; the foundation bolts coat the vertical positioning support rods; and the fixed limiting bracket is relatively fixed with a bridge pier body template through the space positioning bracket. The construction method of the foundation bolts of the railway contact net and the mounting bracket, provided by the invention, can realize precise positioning and mounting of the foundation bolts, prevent repeated measurement and adjustment, reduce the construction difficulty, accelerate the construction speed, and improve the pass percent of mounting inspection and acceptance of the foundation bolts of the contact net.

Description

technical field [0001] The invention relates to the construction technology of bridges and subgrade contact nets in railway engineering, in particular to a construction method and installation bracket for railway catenary anchor bolts. Background technique [0002] In the process of railway engineering construction, anchor bolts play a role in connecting the catenary pillars. The installation of anchor bolts often requires repeated measurements and adjustments. The construction is difficult and inefficient. The pre-embedded position is offset, and the elevation accuracy and verticality are not up to standard, which will lead to major quality defects in the railway project and cause safety hazards. [0003] Using installation brackets to construct anchor bolts is a method to reduce construction difficulty and improve construction efficiency. Contents of the invention [0004] The invention provides an easy-to-operate construction method for the anchor bolts of a railwa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/42E01D21/00
CPCE01D21/00E02D27/42
Inventor 张文山王贤李长春安健任斌王虎林宋飞徐长军
Owner SINOHYDRO ENG BUREAU 4
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