CN113605685A

CN113605685A - Construction method of flue top plate arch structure supporting system

Info

Publication number: CN113605685A
Application number: CN202110894692.9A
Authority: CN
Inventors: 孙小涛; 王国良; 王志广
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-05

Abstract

The invention relates to a construction method of a flue top plate arch structure supporting system, which comprises the following steps that firstly, supports are erected on the ground below a flue top plate, supporting upright rods, cross rods and cross braces are arranged according to the designed space and step pitch, and all components are connected by buckles; secondly, rolling the longitudinal welded pipe into an arc-shaped steel pipe according to the radian of the flue top plate; thirdly, taking a straight steel pipe, and welding the straight steel pipe and two ends of an arc-shaped steel pipe to form an arch support; and fourthly, mounting the arch supports on the upper part of the full hall scaffold, enabling the arc-shaped steel pipes to be supported on the lower side of the top plate, and fixing the cross positions of the support upright stanchions, the linear steel pipes and the arc-shaped steel pipes through buckles.

Description

Construction method of flue top plate arch structure supporting system

Technical Field

The invention belongs to the technical field of building construction formwork supporting tools, and particularly relates to a construction method of an arch-shaped structure supporting system of a flue top plate.

Background

At present, the design of arched support systems such as flues and the like in the building industry generally adopts an arched support made of steel bars, the arched support comprises a semicircular outline consisting of a straight bar and an arc-shaped steel bar, and the shape of the straight bar support is uniformly distributed in the arched support. The lower structure of the arch support is a scaffold support, and the steel bar arch support is located on the scaffold body of the full hall. The traditional arch support formed by welding the steel bars has the following defects: 1) the welding work amount is large, and the construction period is long; 2) the requirement on welding quality is high, and the welding quality of the connecting part of the steel bar arched bracket and the bracket body is difficult to control.

Disclosure of Invention

The invention aims to solve the problems, and provides an arch structure supporting system which is convenient and quick to support, good in stability and capable of adjusting load.

The invention solves the problems and adopts the technical scheme that:

a construction method of a flue roof arch structure supporting system is carried out according to the following steps:

firstly, supporting a support on the ground below a flue top plate, and arranging vertical scaffold tubes at the same interval and step pitch; the vertical scaffold tubes are connected with each other through the transverse scaffold tube and the longitudinal scaffold tube; the cross parts of the transverse scaffold tubes and the longitudinal scaffold tubes and the vertical scaffold tubes are fixed through buckles;

secondly, rolling the longitudinal welded pipe into an arc-shaped steel pipe according to the radian of the flue top plate;

thirdly, taking a straight steel pipe, and welding the straight steel pipe and two ends of an arc-shaped steel pipe to form an arch support;

and fourthly, installing the arch support at the top of the vertical scaffold tube to enable the arc-shaped steel tube to be supported at the lower side of the top plate, and fixing the vertical scaffold tube with the cross position of the straight line steel tube and the cross position of the arc-shaped steel tube through a buckle.

Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:

firstly, the flue top plate is supported by adopting the longitudinal welded pipe instead of the traditional steel bar welding, so that the labor cost is reduced, and the construction cost is greatly reduced;

the invention changes the connection mode of the whole support system, the bearing capacity of the steel pipe is far better than that of the steel bar, the invention ensures that the frame body has better stability, and simultaneously reduces the quantity of horizontal support and vertical support in the flue and the erection density.

Drawings

FIG. 1 is a schematic view of the overall structure of the support system of the present invention;

FIG. 2 is a view of the arch support of the present invention.

In the figure: the device comprises an arched support 1, a transverse scaffold tube 2, a vertical scaffold tube 3, a buckle 4, an arc-shaped steel tube 1-1 and a linear steel tube 1-2.

Detailed Description

The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.

The market quotation and the labor cost in recent years are greatly increased, and the attention on the construction safety is strengthened. The whole construction industry gradually turns to mechanization, and machines replace manual work, thereby liberating the great trend of labor force. In order to reduce the workload of manufacturing the arch support 1 in the traditional construction, researchers of the application provide improvement on the manufacturing of the arch support 1.

The invention is mainly applied to the support of the flue top plate arch rotation of the coking engineering, and is characterized in that the arch support is made of a straight welded pipe instead of the traditional steel bar, and a frame body is connected with the arch support by a buckle 4 to form a whole. The integral supporting strength is improved.

Referring to fig. 1 and 2, the construction method of the arched structure support system of the flue roof provided by the invention comprises the following steps:

firstly, supporting a support on the ground below a flue top plate, and arranging vertical scaffold tubes 3 at the same interval and step pitch; the vertical scaffold tubes 3 are connected with each other through the transverse scaffold tube 2 and the longitudinal scaffold tube; the cross parts of the transverse scaffold tubes 2 and the longitudinal scaffold tubes and the vertical scaffold tubes 3 are fixed through buckles 4;

secondly, rolling the longitudinal welded pipe into an arc-shaped steel pipe 1-1 according to the radian of the flue top plate;

thirdly, taking a straight steel pipe 1-2, and welding the straight steel pipe with two ends of an arc-shaped steel pipe 1-1 to form an arch support 1;

fourthly, the arched supports 1 are installed at the tops of the vertical scaffold pipes 3, the arc-shaped steel pipes 1-1 are supported at the lower sides of the top plates, and the vertical scaffold pipes 3 are fixed with the cross positions of the straight line steel pipes 1-2 and the arc-shaped steel pipes 1-1 through the buckles 4.

In the construction method, the arch support 1 is an integral component, the arc steel pipe 1-1 is made of a straight welded pipe, and the radian of the arc steel pipe 1-1 is formed by rolling according to the arch size of the flue. The pressure borne by any point on the arched support 1 and the arched steel pipe 1-1 is transmitted to the vertical scaffold pipe 3, and then borne by the whole scaffold system. The arch structure can be manufactured on site, but also supports factory manufacturing and field installation.

The scaffold is fixed by the buckle 4, and is practically stable and detachable. The steel pipe has better bearing capacity than steel bars, the invention ensures that the frame body has better stability, reduces the number of horizontal supports and vertical supports in the flue and reduces the erection density.

The arch support replaces an arc support manufactured by welding steel bars originally, and the stability and the safety of the whole support body are greatly improved. The scaffold pipe replaces the original steel bar support, and due to the replacement of materials, the density of the support rod erection can be reduced, most of manufacturing workload is saved, and the construction cost is obviously reduced compared with the traditional support system. The frame body is fixed by the fastener, and the scaffold tube saves the material cost.

The components related to the supporting system are convenient to transport and can be reused.

The construction of the invention is fast erected and dismantled, and the workload and the construction cost are reduced.

The invention has the characteristics of convenience, rapidness, recoverability and reutilization and good stability.

The load of the supporting system can be adjusted by adjusting the distance and the step pitch of the scaffold tubes supported on the ground, increasing the number of arch supports and increasing the transverse and longitudinal shear supports.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.

Claims

1. A construction method of a flue top plate arch structure supporting system is characterized by comprising the following steps: the method comprises the following steps of (1),

firstly, supporting a support on the ground below a flue top plate, and arranging vertical scaffold tubes (3) at the same interval and step pitch; the vertical scaffold tubes (3) are connected through the transverse scaffold tube (2); the cross part of the transverse scaffold tube (2) and the vertical scaffold tube (3) is fixed through a buckle (4);

secondly, rolling the longitudinal welded pipe into an arc-shaped steel pipe (1-1) according to the radian of the flue top plate;

thirdly, taking a linear steel pipe (1-2), and welding the linear steel pipe with two ends of the arc-shaped steel pipe (1-1) to form an arch support (1);

and fourthly, installing the arched supports (1) on the tops of the vertical scaffold pipes (3) to enable the arc-shaped steel pipes (1-1) to be supported on the lower sides of the top plates, and fixing the vertical scaffold pipes (3) with the cross positions of the linear steel pipes (1-1) and the arc-shaped steel pipes (1-1) through buckles (4).