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Construction method of a high-support formwork multi-combination large-load floor support system

A support system and construction method technology, applied in the direction of architecture, building structure, etc., can solve problems such as the construction of upper floor slabs that cannot meet high formwork and large loads, reduce interference area and interference space, overcome insufficient support, and reduce interference area Effect

Active Publication Date: 2019-08-13
CHINA NUCLEAR IND 24 CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a construction method of a high-support formwork multi-combination large-load floor support system to solve the problem of high formwork and large load under complex working conditions after the introduction of large-scale lifting equipment in the spent fuel plant of a nuclear power plant in the prior art The problem of the construction of the upper floor, to achieve the purpose of stable overall support for the upper floor with high formwork and heavy load

Method used

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  • Construction method of a high-support formwork multi-combination large-load floor support system
  • Construction method of a high-support formwork multi-combination large-load floor support system

Examples

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Embodiment 1

[0040] Such as figure 1 and figure 2 The construction method of a high-formwork multi-combination large-load floor support system is shown, including the spent fuel shaft area, including: (a) setting a cantilever structure above the floor interlayer to carry out cantilever floor construction; introducing rail lifting car to the underside of the overhanging floor, and set the area covered by the rail hoisting vehicle as the section steel support area; select the area with the smallest load on the upper floor in the section steel support area as the trolley parking area of ​​the rail hoisting vehicle; (b) install the truss Vehicle girder, the truss vehicle beam is located above the spent fuel shaft area and covers the entire spent fuel shaft area, the area covered by the truss vehicle girder is set as the section steel support area; the other parts except the section steel support area are set as full frame support (c) Set up a steel support frame in the steel support area, an...

Embodiment 2

[0042] Such as figure 1 and figure 2 Shown is a construction method of a high-support formwork multi-combination large-load floor support system. On the basis of Example 1, the cantilevered floor is constructed using full scaffolding for support. Setting up the steel support frame in the steel support area includes the following steps: (i) Install root steel plates at equal intervals on the floor, fix the root steel plates to the floor with expansion bolts, weld uprights on each root steel plate, and use grooves between adjacent uprights Steel connection, the top of the column is welded to the top steel plate; (ii) the outermost column and the wall are connected through a wall piece, each column is provided with a diagonal brace, and the bottom of the diagonal brace is welded to the floor; The support is shaped steel; (iii) install the dolly platform beam in the dolly parking area, the dolly platform beam includes a main beam at the bottom and a secondary beam at the top, wh...

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Abstract

The invention discloses a high-formwork multi-combined high load floor support system construction method comprising the steps that (a), cantilever floor plate construction is carried out; a track crane car is led below the cantilever floor plate, and the area covered by the track crane car is a structural steel support area; and the area with the minimum load on an upper layer floor of the structural steel support area is a trolley parking area; (b), a trussed beam is installed above a spent fuel vertical shaft area, the area covered by the trussed beam is the structural steel support area, and other parts are a full arch support area; (c), a structural steel support framed is built in the structural steel support area, and a full arch scaffold is built in the full arch support area; and(d), a trussed track and a hoisting trussed car are installed on the trussed beam. The high-formwork multi-combined high load floor support system construction method is used for solving the problem of the high-formwork and high load upper layer floor construction under complex working conditions after the introduction of large lifting equipment for a spent fuel plant of an nuclear power plant inthe existing technology, and the purpose of achieving stable overall support for the high-formwork and high load upper layer floor is achieved.

Description

technical field [0001] The invention relates to the field of nuclear power plant civil construction, in particular to a construction method for a high-support formwork multi-combination large-load floor support system. Background technique [0002] The modular high-temperature gas-cooled reactor nuclear power plant with the fourth-generation advanced nuclear power technology with independent intellectual property rights in my country is the first reactor construction project. The spent fuel plant is used as an important system function for spent fuel storage, core evacuated fuel storage and reloading, and spent fuel transfer. Factory building, which has the requirements of earthquake resistance class I, building quality assurance level QA1 and radiation protection red zone. The geometric shape and structural material selection of the spent fuel building must meet the subcritical safety requirements of the spent fuel storage system. During storage and in-plant transportation, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/35
CPCE04B1/35
Inventor 张希旭康清顺肖飞李文恒李新欣曲文科朱利军杨淋淋
Owner CHINA NUCLEAR IND 24 CONSTR