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Construction method of cable-stayed bridge pylon

A construction method and tower column technology, applied in the direction of cable-stayed bridges, bridges, bridge parts, etc., can solve the problems of high total project cost, unsynchronized construction, long construction period, etc., to shorten the construction period, save cost, and speed up construction progress effect

Active Publication Date: 2016-08-10
THE 5TH ENG MBEC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This method prevents the construction of the upper tower column, the upper beam and the top section of the main girder pier of the cable-stayed bridge at the same time. The construction is restricted by pre-conditions, the construction period is long, and the total project cost is high

Method used

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  • Construction method of cable-stayed bridge pylon
  • Construction method of cable-stayed bridge pylon
  • Construction method of cable-stayed bridge pylon

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Embodiment Construction

[0050] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0051] see Figure 1 to Figure 12 Shown, the embodiment of the present invention provides a kind of construction method of cable-stayed bridge cable tower, concrete steps are as follows:

[0052] Step 1, construct cap 1, tie beam 2 and tower base 3, and set the embedded part 901 of the main beam pier top section bracket on the upper end faces of cap 1, tie beam 2 and tower base 3, The upper end surface of 2 is provided with an upper beam bracket embedded part 801;

[0053] Step 2, the lower tower column 4 and the upper tower column 5 carry out the climbing formwork construction along the height direction, and at the same time use the tower crane 10 to simultaneously install the upper beam support 800, the main beam pier top segment support 900 and the cross brace 7;

[0054] Among them, the upper beam support 800 includes the upper beam stee...

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Abstract

The invention discloses a construction method of a cable-stayed bridge pylon. The construction method comprises specific steps as follows: step 1, cushion caps, a tie beam and pylon bases are constructed, main beam pier top segment support embedded parts are arranged on the cushion caps, the tie beam and the pylon bases, and upper cross beam support embedded parts are arranged on the tie beam; step 2, lower pylon columns and upper pylon columns are subjected to climbing formwork construction, an upper cross beam support, a main beam pier top segment support and cross bracings are synchronously mounted; step 3, after the bottom of a climbing formwork system is higher than the construction height of an upper cross beam, concrete pouring is performed for construction of the upper cross beam and a main beam pier top segment while the upper pylon columns are subjected to climbing formwork construction; step 4, after the strength of upper cross beam concrete meets design requirements and the upper cross beam is pre-stressed, the upper cross beam support and the cross bracings are detached from top to bottom, and after a main beam pier top segment stay cable is hung and tensioned, the main beam pier top segment support is detached. The construction method has the advantages of high construction speed, short work period, low cost and high safety coefficient.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a construction method for cable towers of cable-stayed bridges. Background technique [0002] The cable-stayed bridge is composed of three parts: the main girder, the cable tower and the cable-stayed cables. The main beam generally adopts concrete structure, steel and concrete structure, composite structure or steel structure. made of steel wire or strands. The cable tower includes a lower tower column, an upper tower column, and a beam. [0003] In order to solve the contradiction of the ever-growing traffic across navigable rivers, rivers, lakes, seas and high and deep canyons, more and more super-wide, super-high, super-heavy and super-long-span cable-stayed bridges are emerging, and high-altitude operations in cable-stayed bridge construction Many, the technical requirements for construction control are strict, and higher requirements are put forward for the construction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D11/04E01D19/14
CPCE01D11/04E01D19/14E01D21/00
Inventor 付浩严杰尹振君孙国光陶志力徐毓敏王俊华陈文安东航浦遇春梅文兵
Owner THE 5TH ENG MBEC
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