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A construction method of high-precision special-shaped thin-walled concrete cavity structure

A construction method and high-precision technology, applied in industrial buildings, building structures, formwork/formwork/work frames, etc., can solve problems such as the inability to meet construction accuracy, and achieve the coaxiality of the main shaft of the wind tunnel, easy operation, The effect of supporting the stability of the system

Active Publication Date: 2015-09-09
中国人民解放军63926部队
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  • Description
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Problems solved by technology

[0002] Ordinary buildings can be erected in conventional forms such as scaffolding to realize the establishment of the support system. If the method supports the formwork, it cannot meet the construction accuracy requirements, and technological innovation must be carried out, and other construction methods must be considered

Method used

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  • A construction method of high-precision special-shaped thin-walled concrete cavity structure
  • A construction method of high-precision special-shaped thin-walled concrete cavity structure
  • A construction method of high-precision special-shaped thin-walled concrete cavity structure

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with example, accompanying drawing.

[0021] A continuous single-return wind tunnel is a high-precision ultra-large special-shaped thin-walled gradual cross-section concrete tunnel structure, the step difference of each section in the downstream direction is ≤2mm, the axis coaxiality is ≤φ4mm, and the axial coaxiality of individual sections is ≤φ4mm, and the precision requirements high. The specific construction process is as follows:

[0022] (1) Obtain 3D stereographic model and solid model:

[0023] According to the construction drawings, use the professional software SketchUp and Revit to establish the building information model, and obtain High-precision special-shaped thin-walled The continuity and precise spatial coordinates of the tunnel body, and the processed 1:100 special-shaped structure wind tunnel body 1 internal and external surface models can be intuitively expressed and effective...

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Abstract

The invention belongs to the construction technology of the concrete cave body structure of special structures, and relates to a construction control method of a special special-shaped thin-walled cave body under the condition that the accuracy of the formwork support cannot be controlled according to the normal scaffolding erection, which is complicated and diverse, and has ultra-high precision. A construction method for a high-precision special-shaped thin-walled concrete cavity structure, which is characterized in that it includes the following steps: 1) Establishing an axis plane control network and elevation control; 2) Using concrete hardened ground on the backfill soil layer to create a uniform settlement On the platform, a full-frame scaffolding support system is set up, and the profile positioning wooden trusses are installed and fixed on the full-frame scaffolding; 3) According to the design drawings, the templates are placed in real samples and numbered according to 1:1, and the finalized templates are made. On the positioning truss, the hole formwork is supported, installed and reinforced; 4) The self-compacting concrete technology is used for concrete pouring.

Description

technical field [0001] The invention belongs to the construction technology of the concrete cave body structure of special structures, and relates to a construction control method of a special special-shaped thin-walled cave body under the condition that the accuracy of the formwork support cannot be controlled according to the normal scaffolding erection, which is complicated and diverse, and has ultra-high precision. Background technique [0002] For general buildings, scaffolding and other conventional forms can be set up to realize the establishment of the support system. For some special holes with variable curved surfaces, if the formwork is supported by the conventional method of erecting full-length scaffolding, the construction accuracy requirements cannot be met, and technical Be innovative and consider other construction methods. [0003] Therefore, how to solve the support problems such as formwork space positioning reinforcement, steel bar processing and instal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G21/00E04G13/00E04H5/02
Inventor 邴光利李博平杨辉白联锋李乐徐忠超
Owner 中国人民解放军63926部队
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