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Bridge curve type tower column outer formwork system

A curved and external formwork technology, which is applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem of not fully meeting the design arc requirements of curved tower columns, poor appearance of curved tower columns, and uneven arc joints and other problems to achieve the effect of avoiding construction safety risks, beautiful appearance, and improving linear accuracy

Active Publication Date: 2021-06-11
CHINA COMM 2ND NAVIGATIONAL BUREAU 3RD ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adjust the radian of the previous wooden formwork by replacing backing strips of different thicknesses. The radian of the wooden formwork cannot fully meet the design radian requirements of the curved tower column, and the installation efficiency of the wooden formwork is low. The radian connection is not smooth, and the appearance of the curved tower column is poor

Method used

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  • Bridge curve type tower column outer formwork system
  • Bridge curve type tower column outer formwork system
  • Bridge curve type tower column outer formwork system

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and the embodiment of the present invention being used in the construction of curved tower columns of Hangzhou Jiuqiao Road Bridge.

[0020] Such as figure 1 As shown, the Jiuqiao Road Bridge in Hangzhou is a self-anchored suspension bridge with a single-tower and four-span composite girder. The thickness is 1.2m, the section size of the tower root is 7.5×6.0m, the section size of the tower top is 4.5×5.0m, the four corners are chamfered at 0.5×0.5m, and the solid section is used within 3m from the tower root and the tower top. diaphragm. The cross-sectional size of the curved tower column 101 changes with the height transition. The curved tower column 101 is divided into 4 sections of arc transition along the tower height. The construction of the main tower is divided into 19 sections. The standard section height is 4m.

[0021] In the description of the present invent...

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Abstract

The invention discloses a bridge curve type tower column outer formwork system which comprises a front and back side flat plate formwork, an inner side arc-shaped formwork and an outer side arc-shaped formwork, wherein the side edges of the front and back side flat plate formwork are fixedly connected with side plates of the adjacent inner side arc-shaped formwork or the side edges of the adjacent outer side arc-shaped formwork through chamfering formworks to form a formwork system enclosing the peripheral face of a curve type tower column. The inner side arc-shaped mold and the outer side arc-shaped mold are the same in structure and respectively comprise a panel, a plurality of I-shaped wood beams, a plurality of connecting plates and a plurality of arc-shaped mold double-splicing back ridge channel steel. The system can meet the requirement that different height sections of the curved tower column correspond to different curvature radiuses, and is good in universality. The operation is simple and fast, the construction is convenient, the construction progress is accelerated, the construction efficiency is improved, the template modification time is saved, and the construction safety risk is also effectively avoided. And meanwhile, the steel-wood combined template is adopted, so that the construction cost is saved. By means of the system, the curve type tower column is attractive in appearance, and the design requirement is met more accurately.

Description

technical field [0001] The invention relates to a formwork system for concrete pouring of a bridge tower, in particular to a formwork system enclosed on the outer peripheral surface of a curved bridge tower column to be poured, and belongs to the technical field of bridge construction. Background technique [0002] The maximum span of the suspension bridge can reach more than 1000m, which has the characteristics of low material consumption and light weight, and is widely used in the construction of modern long-span bridges. Such as figure 1 Shown is the cable tower 100 of the suspension bridge, which includes curved tower columns 101 on both sides that are slanted and folded from bottom to top, and the upper parts of the symmetrically arranged curved tower columns 101 are connected by beams 102, and the bottom of the curved tower columns 101 is supported by a tower base 103 On the main tower platform 104. Curved towers have high requirements on the quality of linear contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00Y02E10/72Y02E10/728
Inventor 石守鹏姚平茅兵海韩雨凡汪小川刘新城杨宇臣刘洪亮陶猛林宝玉田海洋胡超杨凯高海成叶朝辉苏兴矩
Owner CHINA COMM 2ND NAVIGATIONAL BUREAU 3RD ENG
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