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Large earthed concrete tank dome steel support structure and mounting method thereof

A supporting structure and concrete technology, which is applied in the field of large-scale earth-covered concrete tank dome steel supporting structure and installation, can solve the problems of high rental costs of scaffolding and long construction period, etc., and achieve the effect of low construction efficiency, improved work efficiency, and simple structural force transmission

Pending Publication Date: 2018-05-04
THE SECOND CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the previous construction experience of the same type of project, although the traditional full house scaffolding can complete the dome construction, the construction period is long and the rental cost of scaffolding is high

Method used

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  • Large earthed concrete tank dome steel support structure and mounting method thereof
  • Large earthed concrete tank dome steel support structure and mounting method thereof
  • Large earthed concrete tank dome steel support structure and mounting method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] The present invention is a large-scale soil-covered concrete tank dome steel support structure, which is used for the construction of a dome structure with variable plate thickness spherical surface, large span, and high formwork with a thin shell span of more than 30m, a lower clearance of more than 20m, and a thin shell with different thicknesses. support. It includes full house scaffolding 6, lattice column foundation 1, standard section tire frame 2, support frame center disc 3, truss 4 and I-beam 5; lattice column foundation 1 is set in the center of the tank room, which can usually be set as a square steel bar The structural form of the concrete cap, and pre-embedded anchor bolts. The standard section tire frame is composed of several lattice columns. The lattice column is four circular pipe columns as the main load-bearing structure. The four circular pipe columns are connected by angle steel to form a whole. After the parts are assembled, they are hoisted into ...

Embodiment 2

[0038] A method for installing a steel support structure of a large earth-covered concrete tank dome comprises the following steps:

[0039] Step 1, the setting of the lattice column foundation, the lattice column foundation is set in the structural form of a square reinforced concrete cap, and the anchor bolt corresponding to the central column is pre-embedded in the cap, so that it can be fixed and pre-embedded when the lattice column is installed later The diameter of the anchor bolts is 25mm.

[0040] Step 2, the installation of the standard section tire frame, the installation of the standard section tire frame is hoisted by tower crane or truck crane, the standard section tire frame is composed of several lattice columns, and each section of lattice column needs to be assembled on the ground before the whole Hoisting into the tank room, the columns are connected by high-strength bolts, and the next hoisting can only be carried out after the bolts are connected; each latt...

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Abstract

The invention discloses a large earthed concrete tank dome steel support structure, comprising an all-round scaffold, a latticed column foundation, a standard segment jig, a support frame center disc,trusses and I-beams; the latticed column foundation is arranged in the center of a tank chamber; a plurality of latticed columns are fixedly connected to the latticed column foundation to form the standard segment jig; the support frame center disc is fixed to the uppermost latticed column; in construction of a last standard segment of a tank wall, embedded parts are necessarily embedded to weldsteel brackets; after the tank wall is cast and a formwork is removed, the steel brackets can be welded to embedded plates; one end of each truss is fixed to the corresponding bracket part on the tankwall of a concrete tank, and the other end of each truss is fixed to the support frame center disc; the I-beams and wooden pads are laid on the upper portions of the trusses. The invention also discloses a mounting method of the large earthed concrete tank dome steel support structure. The large earthed concrete tank dome steel support structure has high bearing capacity and good structural system stability, poor forming quality of a dome due to foundation settlement is avoided, a jig system has large space for operation and good operational safety, and operations can be better ensured for workers.

Description

technical field [0001] The invention belongs to the field of concrete structures of building construction engineering, and in particular relates to a large-scale earth-covered concrete tank dome steel support structure and an installation method. Background technique [0002] The dome structure of the concrete tank chamber of a large earth-covered oil tank is mostly an arc-shaped thin shell structure. The span of the thin shell of the tank chamber is more than 30m, and the clearance of the lower part is more than 20m. The construction generally adopts cast-in-place concrete. Therefore, variable slab thickness spherical surface, large span, and high formwork are the characteristics of dome structure construction. [0003] At present, what the conventional dome construction method adopts is full hall scaffolding. According to the previous construction experience of the same type of project, although the traditional full house scaffolding can complete the dome construction, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H7/18E04G21/14
CPCE04G21/14E04H7/18
Inventor 姚建忠陈明杨雄伟王威万淼
Owner THE SECOND CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU
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