Loose sand loading pre-compaction construction method for cast-in-situ concrete beam form steel pipe support

A technology of concrete beams and steel pipe supports, which is applied in the processing of building materials, construction, building construction, etc., can solve the problems of difficult preloading of beam formwork supports, improve stability and safety, reduce height, and ensure accuracy sexual effect

Active Publication Date: 2013-12-25
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to solve the problem that the existing traditional loading method is difficult to preload the beam formwork support, the present invention provides a preloading construction method for the cast-in-place concrete beam formwork steel pipe support using loose sand loading, which ensures the safety and convenience of the preloading construction proceed

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  • Loose sand loading pre-compaction construction method for cast-in-situ concrete beam form steel pipe support
  • Loose sand loading pre-compaction construction method for cast-in-situ concrete beam form steel pipe support
  • Loose sand loading pre-compaction construction method for cast-in-situ concrete beam form steel pipe support

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Embodiment Construction

[0036] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0037] 1. The preloading construction method of the cast-in-place concrete beam formwork steel pipe support using loose sand loading is realized through the following steps:

[0038] 1) Step 1: Install the loading device - sand tank on the beam formwork support

[0039] The loading sand tank is composed of six parts: the bottom beam of the tank, the bottom plate of the sand tank, the end plate of the sand tank, the side plate of the sand tank, the pull bolts and the diagonal brace. See attached figure 1 .

[0040] The beams at the bottom of the tank are made of wood squares or steel pipes, and are placed on the bottom mold of the cast-in-place concrete beams at a certain distance. Lay the bottom plate of the sand tank on the beam at the bottom of the tank. The bottom plate of the sand tank is assembled with wooden boards or small steel molds. ...

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Abstract

The invention belongs to the technical field of construction of cast-in-situ concrete beam form steel pipe supports, and particularly discloses a loose sand loading pre-compaction construction method for a cast-in-situ concrete beam form steel pipe support. The problem of difficulty in the pre-compaction of a beam form support in a conventional loading method is solved. The method specifically comprises the following steps of forming a sand loading groove in a cast-in-situ concrete beam bottom board, mounting settlement measurement positioning rods on a beam bottom board support, and performing loading, settlement observation and unloading. The loose sand loading pre-compaction construction method for the cast-in-situ concrete beam form steel pipe support is used for performing pre-compaction construction on the cast-in-situ concrete beam form steel pipe support for the first time, the problem of overloading pre-compaction difficulty caused by narrower beam bottoms, higher beam bodies and higher loads is solved, and convenience and safety in the pre-compaction construction of the beam form steel pipe support are ensured.

Description

technical field [0001] The invention belongs to the technical field of steel pipe support construction of cast-in-place concrete beam formwork, and in particular relates to a preloading construction method of cast-in-place concrete beam formwork steel pipe support using loose sand loading. Background technique [0002] When constructing structures such as cast-in-place concrete beams in construction projects, the formwork brackets often use steel pipe full-wall brackets. According to the requirements of the new specification (JGJ / T194-2009 Technical Specification for Preloading of Steel Tube Supports in Full Halls), it is necessary to carry out load preloading on the formwork steel tube supports. Generally, for the preloading of steel pipe brackets, the traditional method is to use sand bags for preloading, that is, use woven bags to weigh sand, and then hoist and stack the sand bags on the brackets. However, because the beam bottom is narrow, the beam body is high, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/00
Inventor 周发恒张建王晓峰王朕李华李峰李建峰罗云鹏郝建忠刘炎峰张建林尹华松吴仁友
Owner CHINA RAILWAY NO 3 GRP CO LTD
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