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Simple high-pier tower column concrete side face maintenance construction method

A construction method and concrete technology, applied in the direction of erecting/assembling bridges, bridge materials, bridges, etc., can solve problems such as fire, failure to achieve maintenance effects, high wind speed, etc., achieve simple and easy construction, and promote on-site construction progress and quality Guaranteed effect

Active Publication Date: 2018-07-31
四川路桥华东建设有限责任公司
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AI Technical Summary

Problems solved by technology

[0002] At present, it is difficult to achieve 24-hour moisturizing and curing for the maintenance of the concrete side of the high pier tower column segment. The general film or geotextile covering maintenance cannot guarantee 24-hour moisturizing, and the film and geotextile are easily ignited by construction welding slag due to construction effects. , causing a fire
Since the construction of high piers cannot achieve full coverage of pier columns, steam curing cannot be implemented, and the wind speed is generally high at high altitudes, and general steam curing cannot achieve the ideal curing effect

Method used

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  • Simple high-pier tower column concrete side face maintenance construction method
  • Simple high-pier tower column concrete side face maintenance construction method
  • Simple high-pier tower column concrete side face maintenance construction method

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example

[0025] Engineering example: The cable tower on the north bank of the Baiyang Yangtze River Highway Bridge is a archway-shaped door-shaped frame structure. The top elevation of the north cable tower cap is +55.6m, and the tower height is 142.5m. The internal and external inclination ratio is 1:33.898, and the width along the bridge is 5.5m; the bridge tower is inclined from top to bottom along the bridge, with an internal and external inclination ratio of 1:100, and the width along the bridge is 7.62-10.43m. Concrete is poured in 32 segments, with a single pouring height of 1.5m.

[0026] Project content: The project content mainly includes concrete maintenance measures for the section of the tower column on the north bank and the operation method of maintenance during construction.

[0027] Project features and major difficulties: high-altitude operation, construction is difficult; the distance between the cable tower on the north bank and the ground is about 148 meters, high-...

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Abstract

The invention provides a simple high-pier tower column concrete side face maintenance construction method. The method is characterized in that a simple maintenance water pipeline system is arranged, maintenance water is pumped to tower tops through a high-lift water pump, horizontal annular maintenance water pipes are arranged on the periphery of concrete on the top face of each tower column, a water outlet with the diameter of 8 mm is formed in each annular water pipe every 35 cm, and the annular maintenance water pipes are suspended below formworks through arranged simple lifting rings. 7-mminflaming retarding thermal insulation boards with tinfoil and a geotechnical cloth combined material are adopted as moisture preservation maintenance films on the side faces of the to-be-maintainedconcrete, the maintenance films are suspended below the formworks, simple reverse press devices are arranged on the backs of the formworks and revelry press and tighten the maintenance films to the faces of the concrete, the water pump is started, the maintenance films are wet by the maintenance water through the annular maintenance water pipes, and a concrete maintenance purpose is achieved.

Description

technical field [0001] The invention relates to the field of health-preserving construction of high-pier tower columns, in particular to a simple health-preserving construction method suitable for the concrete side of high-pier tower columns. Background technique [0002] At present, it is difficult to achieve 24-hour moisturizing and curing for the maintenance of the concrete side of the high pier tower column segment. The general film or geotextile covering maintenance cannot guarantee 24-hour moisturizing, and the film and geotextile are easily ignited by construction welding slag due to construction effects. , causing a fire. Since the construction of high piers cannot achieve full coverage of the pier columns, steam curing cannot be implemented, and the wind speed is generally high at high altitudes, and general steam curing cannot achieve the ideal curing effect. Contents of the invention [0003] The present invention provides a simple maintenance construction me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00C04B40/02E01D101/24
CPCC04B40/0277E01D21/00E01D2101/24
Inventor 陈伟肖安斌汪捍东代道芬陈刚陈航涂元全
Owner 四川路桥华东建设有限责任公司
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