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Detachment-free construction method for internal framework of box beam

A construction method and a disassembly-free technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., to achieve the effects of ensuring performance and durability, saving human resources, and ensuring construction quality

Inactive Publication Date: 2011-06-29
青建集团股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Economical without compromising structural safety

Method used

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  • Detachment-free construction method for internal framework of box beam
  • Detachment-free construction method for internal framework of box beam
  • Detachment-free construction method for internal framework of box beam

Examples

Experimental program
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Embodiment Construction

[0015] As shown in the figure, the construction method of the box girder internal formwork without dismantling in this embodiment includes the following steps:

[0016] (1) Prepare asbestos boards with a thickness of 5mm as the inner formwork 4 of the box girder; the secondary corrugation, main corrugation, and columns are made of magnesia, and are formed in pieces in the processing plant according to the section size of the box room, and transported to the site for installation. To the spacing of 500-600mm;

[0017] (2) A 50×50mm square timber reinforcement is arranged longitudinally at the joints of the rib 1, the web 2, the roof 3, and the transverse beam;

[0018] (3) The connecting plate between the column and the main flute is connected with steel nails.

[0019] In the construction method of the above-mentioned inner formwork of box girder without dismantling, the second corrugated section is 15×40mm, and the spacing is 400mm; the main corrugated section is 50×100mm, a...

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Abstract

The technical problem to be solved by the invention is to provide a detachment-free construction method for the internal framework of a box beam. Based on the pouring sequence of the box bream, no skylight is built, and a design of detachment-free template is adopted; therefore, construction quality is ensured, labor force, materials and construction period are saved, adverse influences caused by design of the 'skylight' are avoided, and the method is economic without influencing structural safety.

Description

technical field [0001] The invention relates to a construction method of a box girder inner formwork, in particular to a disassembly-free construction method suitable for a low-height wide flat box girder inner formwork. Background technique [0002] At present, low-height wide flat box girders are more and more widely used in the construction of highways, bridges, and underground projects, and gradually become the most widely used formwork form in construction. Generally, it is composed of plates of a certain modulus, corner forms, supports and connectors, which can be assembled and used directly on the construction site, with various sizes and shapes, and can be flexibly combined. However, due to the narrow space of the inner formwork of the low-height wide and flat box girder, it is difficult to directly enter the box room to remove the formwork. Therefore, in the later stage of construction, the removal of the inner formwork of the low-height wide and flat box girder is ...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 张师定隋悦明王胜
Owner 青建集团股份公司