Pressure pouring combining concreting construction method used for structural cross section enlargement

A technology for pouring concrete and increasing cross-section, applied in construction, building maintenance, building construction, etc., can solve problems affecting construction quality, slurry leakage, etc., and achieve high construction efficiency, good application prospects, and high efficiency.

Inactive Publication Date: 2018-09-11
CCCC ROAD & BRIDGE SPECIAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can provide a reference, but for the structure enlargement section project, the formwork is only in contact with the existing structure, there is a certain gap, and the excessive concrete pouring pressure will lead to grout leakage and affect the construction quality

Method used

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  • Pressure pouring combining concreting construction method used for structural cross section enlargement
  • Pressure pouring combining concreting construction method used for structural cross section enlargement
  • Pressure pouring combining concreting construction method used for structural cross section enlargement

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with specific drawings and examples, so as to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0031] In order to make the content of the present invention easier to understand, the present invention will be described in further detail below according to specific embodiments:

[0032] Such as figure 1 As shown, the specific implementation includes the following steps: installing no residue hanging formwork 1 on the old structure 3 → installing a concrete valve 2 → arranging a concrete pumping system 4 → pouring concrete in stages.

[0033] Such as figure 2 As shown, the no-residue hanging form 1 proposed by the present invention is composed of an inner bolt group 1-1, an outer bolt group 1-2, a screw rod 1-3, a sleeve 1-4 and a template 1-5. The inner bolt group 1-1 is embedded inside the concrete to be poured, the outer bolt group 1...

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Abstract

The invention discloses a pressure pouring combining concreting construction method used for a structural cross section enlargement. By installing a non-residual suspending template with a concrete valve on an old structure, a concrete pumping system is utilized to carry out segment dividing pouring construction on a cavity enclosed by the old structure and the suspending template structure. Self-leveling pouring is carried out by utilizing concrete self-weight on the portion below the concrete valve, and pressure pouring is carried out by utilizing the pressure of the concrete pumping systemon the portion above the concrete valve, thereby controlling the concrete pressure in the template within a reasonable range. A concrete pouring process combining the rotating screw suspending template and the pressure pouring is adopted to carry out the structural cross section enlargement, the construction is simple, the efficiency is high, and concrete quality and structure durability are improved; the method not only can be applied to concrete construction of small space structural cross section enlargement but also can be applied to other constructions of cross section enlargement of concrete structures which cannot be easily vibrated, and the application prospect is good.

Description

technical field [0001] The invention relates to a construction method for pouring concrete for increasing the cross-section of the structure, which belongs to the field of bridge and building reinforcement, and specifically relates to a non-residual hanging form with a self-rotating screw installed on the existing structure, a pouring valve installed on the formwork, and a press Concrete pouring combined with grouting and controllable pressure inside the formwork is a construction method for increasing the cross-section of the structure. Background technique [0002] Since the 1950s, a large number of buildings and bridges have been built in my country. Most of the buildings and bridges are facing the problem of reinforcement. Enlarging the cross-section of the structure is the most commonly used reinforcement method, which can effectively improve the bearing capacity and durability of the original structure. The construction content includes planting bars on the original st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E04G23/02
CPCE01D22/00E04G23/02
Inventor 吴中鑫吴俊明陈进盛海军赵金锐曾铮王世祥唐家琦
Owner CCCC ROAD & BRIDGE SPECIAL ENG
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