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Preloading construction method of cast-in-place concrete beam formwork steel pipe support using loose sand loading

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, have novel ideas, and ensure accuracy sexual effect

Active Publication Date: 2016-05-11
CHINA RAILWAY NO 3 GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Preloading construction method of cast-in-place concrete beam formwork steel pipe support using loose sand loading
  • Preloading construction method of cast-in-place concrete beam formwork steel pipe support using loose sand loading
  • Preloading construction method of cast-in-place concrete beam formwork steel pipe support using loose sand loading

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Embodiment Construction

[0036] The specific embodiments of the present invention will be further described with reference to the drawings.

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

[0038] A) Step 1: Install the loading device on the beam mold support-loading sand slot

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

[0040] The bottom beam of the trough is made of wooden square or steel pipe, and is placed on the bottom form of the cast-in-place concrete beam at a certain interval. Laying sand trough bottom plate on the bottom beam. The sand trough bottom plate is assembled with wooden boards or small steel molds. Since the pre-compression load is specified as 1.1 times the load on the beam mold, and the bulk density of co...

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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 construction of steel pipe supports of cast-in-place concrete beam construction templates, and specifically relates to a pre-compression construction method of cast-in-situ concrete beam template steel pipe supports loaded with loose sand. Background technique [0002] When constructing structures such as cast-in-place concrete beams in construction projects, formwork supports often use steel tube full-frame supports. According to the requirements of the new specification (JGJ / T194-2009 steel pipe full house support pre-compression technical specification), load pre-compression of the template steel pipe support is required. Generally, for the pre-compression of steel pipe supports, the traditional method is to use sand bag stacking pre-compression, that is, weigh the sand with woven bags, and then hoist and stack the sand bags on the support. However, because the bottom of the beam is relatively narrow, the ...

Claims

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Application Information

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Patent Type & Authority Patents(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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