Construction method of back anchor type cantilever combined bracket structure

A technology of combining brackets and construction methods, which can be used in the erection/assembly of bridges, instruments, electrical digital data processing, etc., and can solve problems such as poor seismic performance flexibility and damage.

Inactive Publication Date: 2016-07-27
潘燕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the different seismic intensity and types of earthquakes at the site during construction, although the stability of the post-anchor cantilever composite s...

Method used

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  • Construction method of back anchor type cantilever combined bracket structure
  • Construction method of back anchor type cantilever combined bracket structure
  • Construction method of back anchor type cantilever combined bracket structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: as figure 1 The construction method of the shown rear anchor type cantilever composite support structure comprises the following steps:

[0029] (1) Preliminarily construct the structural model of the post-anchor cantilever composite support through computer-aided design, and determine the main components of the post-anchor cantilever composite support structural model;

[0030] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the post-anchor cantilever composite support structure, construct the random ground motion model of the post-anchor cantilever composite support structure model, and generate displacements and velocities corresponding to the main components power spectral density function;

[0031] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main c...

Embodiment 2

[0047] Embodiment 2: as figure 1 The construction method of the shown rear anchor type cantilever composite support structure comprises the following steps:

[0048] (1) Preliminarily construct the structural model of the post-anchor cantilever composite support through computer-aided design, and determine the main components of the post-anchor cantilever composite support structural model;

[0049] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the post-anchor cantilever composite support structure, construct the random ground motion model of the post-anchor cantilever composite support structure model, and generate displacements and velocities corresponding to the main components power spectral density function;

[0050] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main c...

Embodiment 3

[0066] Embodiment 3: as figure 1 The construction method of the shown rear anchor type cantilever composite support structure comprises the following steps:

[0067] (1) Preliminarily construct the structural model of the post-anchor cantilever composite support through computer-aided design, and determine the main components of the post-anchor cantilever composite support structural model;

[0068] (2) According to the local seismic fortification intensity, seismic design grouping and site category of the post-anchor cantilever composite support structure, construct the random ground motion model of the post-anchor cantilever composite support structure model, and generate displacements and velocities corresponding to the main components power spectral density function;

[0069] (3) Calculate the corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and velocity of the main c...

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Abstract

The invention discloses a construction method of a back anchor type cantilever combined bracket structure. The construction method comprises the following steps: constructing a back anchor type cantilever combined bracket structure model, constructing a random earthquake model of the back anchor type cantilever combined bracket structure, calculating displacements and speed power spectral densities of main components of the back anchor type cantilever combined bracket structure, constructing a back anchor type cantilever combined bracket structure damage model, calculating damage indexes, carrying out double reliability assessment on the back anchor type cantilever combined bracket structure model, and constructing the back anchor type cantilever combined bracket structure. According to the construction method disclosed in the invention, construction is carried out according to the back anchor type cantilever combined bracket structure model which is qualified through assessment, and reasonable adjustment is carried out according to the assessment result, so that the earthquake resistance and structure safety are improved, the efficiency is improved and the cost is saved.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a construction method of a rear anchor type cantilever combined support structure. Background technique [0002] For the construction of blocks 0-1 of continuous girder bridges with small and medium spans, the "full hall support method" and "large steel pipe support method" are more widely used. The large steel pipe support method is suitable for the main pier cap with a relatively large width, In the case of short No. 1 block, the large steel pipes are generally fixed on the top of the cap by pre-embedding steel plates on the top of the cap, and the length of the longitudinal bridge to the cantilever should not be too long; The support transmits the load to the hardened foundation, which is suitable for the case where the bearing capacity of the foundation in the support area is large and uniform. As for the main pier located on the bank of the river, one side of block 0-1 is...

Claims

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Application Information

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IPC IPC(8): G06F17/50E01D21/10
CPCE01D21/10G06F30/17G06F30/367
Inventor 潘燕
Owner 潘燕
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