Steel pipe column concrete jacking construction method

Abstract

The invention discloses a steel pipe column concrete jacking construction method which comprises the following steps of (1) construction preparing, (2) jacking self-compacting concrete design, (3) concrete pump jacking, (4) steel pipe column bottom hole performing, (5) self-compacting concrete jacking, (6) concrete guiding in, (7) concrete retaining, (8) column top overflow and pressure relief, (9) examining and accepting, (10) jacking opening sealing and (11) concrete curing. Concrete core filling is carried out in a steel pipe column, mechanical characteristics of a steel structure and concrete are well combined, steel materials are saved, construction technologies such as corresponding closure, overflow and pressure relief device and self-compacting concrete application are combined, concrete does not need vibration self-flow compacting, construction efficiency is high, the construction period is short, concrete one-time jacking concrete in the high steel pipe column is achieved, accordingly, construction links are reduced, construction speed is accelerated, construction quality is guaranteed, and economic benefit and social benefit are obvious.

Description

technical field [0001] The invention relates to a concrete jacking construction method for a steel pipe column. Background technique [0002] At present, most concrete filled steel tubes are poured from top to bottom with tower cranes. Disadvantages of this method: [0003] (1) Due to the high pouring height, conventional construction methods cannot guarantee the construction quality, segregation and separation are prone to occur during the concrete pouring process, and the compactness of the concrete cannot be guaranteed; [0004] (2) Conventional pouring methods do not meet the requirements of green construction; [0005] (3) Most of the steel pipe columns are installed with three floors as one section, which requires special vibrating rods to operate, which is difficult for personnel to construct, and the construction speed is slow, and it takes a lot of time for the tower crane, which increases a lot of labor costs. With the application and development of construction...

AI Technical Summary

Problems solved by technology

Disadvantages of this method:

[0003] (1) Due to the high pouring height, conventional construction methods cannot guarantee the construction quality, segregation and separation are prone to occur during the concrete pouring process, and the compactness of the concrete cannot be guaranteed Spend;

[0004] (2) The conventional pouring method does not meet the requirements of green construction;

[0005] (3) Most steel pipe columns are installed in three layers as one section, which needs to be operated with special vibrating rods. A lot of time spent on the tower crane increases a lot of labor costs

With the application and development of construction technology, the conventional method of pouring concrete-filled steel pipes by tower cranes can no longer meet the requirements of green construction.

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