CN101775896A - Method for installing pipeline scaffold of steel roof equipment and rigid suspended scaffold - Google Patents

Abstract

The invention discloses a method for installing a pipeline scaffold of steel roof equipment and a rigid suspended scaffold. The rigid suspended scaffold comprises a plurality of steel pipe upper trusses with same structures and a plurality of suspended scaffolds with same structures, wherein each steel pipe upper truss is built between at least two upper chords of a steel roof along the vertical running direction of an equipment pipeline, and the steel pipe upper trusses are connected with each other into a whole; each suspended scaffold is suspended and built below each steel pipe upper truss along the running direction of the equipment pipeline, and the length of a suspended overhead corridor formed by the longitudinal connection of the suspended scaffolds is the same as that of the corresponding equipment pipeline. In the invention, building floor type scaffolds is not needed, and high-performance special installing machinery is not needed, thereby saving construction period and cost. The invention is suitable for public buildings, such as long-spun sports and culture stadiums and the like, and equipment pipeline construction in the steel roofs of large-scale industrial buildings and the like.

Description

Method for installing steel roof equipment pipeline scaffolding and rigid hanging scaffolding

technical field

The invention relates to a hanging scaffold, in particular to a method for installing steel roof equipment pipeline scaffolding and a rigid hanging scaffold.

Background technique

The air conditioning, ventilation, fire water supply and other equipment pipes inside the large-span steel structure roof are generally arranged in the space area between the upper chord and the lower chord, tens of meters above the ground. Construction difficulties are mainly manifested in: (1) No construction platform: the working surface to be installed is between the upper and lower chord layers of the roof, and there is no available operating platform. (2) Working at heights: The long-span steel roof is tens of meters above the ground, and there is no supporting point in the middle of the building, so the construction is very dangerous. (3) Cranes cannot work: the exterior wall and roof structure of the venue have been constructed, and due to the working characteristics of the boom, some conventional large cranes such as crawler cranes and truck cranes cannot enter the site for hoisting of equipment and pipelines. (4) Scattered distribution of equipment and pipelines: The equipment and pipelines to be installed are criss-crossed and not on the same plane. (5) The overall construction technology cannot be implemented: restricted by the rigidity and strength of the equipment pipeline, some construction techniques suitable for steel structure installation, such as: sliding method, overall hoisting method, overall lifting method, etc., cannot be applied to equipment pipelines construction.

The options for installation of equipment and pipelines inside the steel roof are: (1) Scaffolding: Although this method is technically feasible, it has a long construction period and a large amount of labor. The time spent on erecting and dismantling scaffolding in a large area is almost equivalent to the time for installing equipment pipelines. At the same time, a large area occupies the working surface on the ground, making it impossible for other professional types of work to carry out construction during this period. (2) Self-propelled lift truck: Although the construction height of this type of machinery can reach 40m, it cannot cover the entire construction area of the equipment pipeline, and some parts still need to find other solutions. At the same time, the demand for machinery used on a large scale is large and the cost is high. (3) Power lifting platform: This type of machinery can be used as lifting equipment or as an operating platform, but the coverage area of a single machine is small, the work efficiency is low, and the construction cost is high. (4) Traditional hanging scaffolding: This method has a large working area, and can simultaneously install equipment and pipelines in various areas, which is conducive to shortening the construction period. At the same time, scaffolding materials and installation techniques are mature, and the cost is low. The disadvantage is that the traditional hanging scaffolding adopts the wire rope hanging method, and its reliability and safety are not as good as the floor-standing scaffolding.

Contents of the invention

The purpose of the present invention is to provide a method for installing steel roof equipment pipeline scaffolding and rigid hanging scaffolding, without the need to set up floor scaffolding, and without using high-performance special installation machinery, thereby saving the construction period and construction costs.

The technical solution adopted by the present invention to solve its technical problems is:

1. A method for installing steel roof equipment pipeline scaffolding:

On the upper chord of the steel roof structure, a steel pipe upper truss composed of fastener-type steel pipe scaffolding is erected along the vertical direction of the equipment pipeline to form a supporting structure for the hanging scaffold. Rigidly connected hanging scaffolding and its platform form a "hanging air corridor" that is the same length as the corresponding equipment pipeline, as a support frame for equipment pipeline installation and a working platform for construction personnel, "hanging air corridor" The steel cables at the bottom are connected to the upper chords of the steel roof, forming a stable structure with constant geometry, which enhances the rigidity and stability of the hanging scaffold.

2. A rigid hanging scaffold for installing steel roof equipment pipelines:

The present invention consists of multiple steel pipe upper trusses of the same structure and multiple hanging scaffolds of the same structure to form a rigid hanging scaffold; each steel pipe upper truss is erected on the steel roof along the vertical direction of the equipment pipeline, and no less than Between the two upper chords, the upper trusses of each steel pipe should be connected to form a whole; each hanging scaffold is along the direction of the equipment pipeline, hanging and erected under each steel pipe upper truss, and many hanging scaffolds The length of the "hanging air corridor" formed longitudinally between them is the same as the length of the corresponding equipment pipeline; the connection relationship between the upper truss of each steel pipe and each hanging scaffold is as follows:

1) The upper, lower, left and right members of the steel pipe upper truss are rigidly connected and fixed with fasteners to form a hoop, which hoops the upper chord of the steel roof, and then erects on the upper chord of the steel roof along the vertical direction of the equipment pipeline. steel pipe upper truss (4);

2) Under the steel pipe upper truss, set up a hanging scaffold along the direction of the equipment pipeline: firstly connect the two vertical rods with the horizontal rods of the steel pipe upper truss rigidly with fasteners, and then connect multiple scaffold horizontal horizontal rods and the bottom scaffold The two ends of the horizontal horizontal bar are rigidly connected with the vertical bar with fasteners, and then each vertical horizontal bar of the scaffold is respectively erected on the horizontal horizontal bar of the scaffold and the bottom horizontal horizontal bar of the scaffold, together with the horizontal horizontal bar of the scaffold and the bottom one. The horizontal bars of the scaffold are rigidly connected with fasteners, and are rigidly connected with each vertical pole with fasteners; the intersection of the scissors brace and the vertical poles is rigidly connected with fasteners;

3) Set up a steel pipe lower truss under the horizontal horizontal bar of the lowest scaffold;

4) Lay scaffolding boards on the bottom longitudinal horizontal bar of the scaffolding to form a support frame and a working platform;

5) Bind the lower chord safety net on the lower chord of the steel roof; tie the side safety net on the side of the vertical pole.

Fasteners are used to rigidly connect multiple railings on each vertical pole.

Steel cables with blue screws are respectively connected between the two ends of the upper chord rod and the two ends of the bottom longitudinal horizontal rod of the scaffold, so that the suspended scaffold becomes a stable structure with constant geometry.

The beneficial effect that the present invention has compared with background technology is:

1. Safe and reliable: The rigid hanging scaffolding system first adopts the vertical direction of the equipment pipeline to erect the steel pipe upper truss on the upper chord of the steel roof, and then erects the hanging scaffold according to the direction of the equipment pipeline. Rigid connection between the steel roof and the steel pipe upper truss, and between the steel pipe upper truss and the hanging scaffold. Due to the rigid connection with each other, and the hanging scaffold and steel roof rods are connected by steel cables to form a stable geometric invariant structure. In addition, there are scissors on the side of the hanging scaffold, so this hanging scaffold The structural rigidity of the system is good, and the overall stability is good. The hanging scaffold system also has safety measures such as side railings and safety nets, which fully guarantee the safety of construction and installation personnel.

2. The construction period is shortened and the cost is reduced. Rigid hanging scaffolding is installed on the rods of the steel roof and rigidly connected with the upper chord of the steel roof. There is no need to set up floor-to-ceiling scaffolding. On the one hand, scaffolding materials are saved. On the other hand, the installation of roof equipment and pipes will not affect the construction of the ground and walls. The high altitude and the ground can be constructed in parallel up and down, saving the construction period and cost. At the same time, the rigid hanging scaffolding builds a "hanging air corridor" according to the position of each equipment pipeline. The installation of equipment pipelines in each area can be carried out simultaneously on different working surfaces, which is easy to speed up the construction progress.

3. Convenient construction and easy promotion: This construction method uses ordinary steel pipe scaffolding materials, and does not require high-performance special installation machinery. The design method, materials used and construction technology of the scaffold are mature, and the rigid hanging scaffold system and its construction method are easy to operate, easy to implement and popularize.

The invention is suitable for construction of equipment pipelines inside steel roofs of large-span sports and cultural venues and other public buildings, as well as large-scale industrial buildings.

Description of drawings

Fig. 1 is a front elevation view of erecting a lower chord safety net on the lower chord and erecting a steel pipe upper truss on the upper chord.

Fig. 2 is a side elevation view of setting up the safety net of the lower chord on the lower chord and erecting the steel pipe upper truss on the upper chord.

Fig. 3 is the front elevation view of setting up the vertical pole, the horizontal horizontal pole of the scaffold, and the vertical horizontal pole of the scaffold.

Fig. 4 is a side elevation view of erecting poles, scaffold horizontal horizontal bars, and scaffold vertical horizontal bars.

Fig. 5 is a front elevation view of erecting the steel pipe lower truss.

Fig. 6 is a side elevation view of erecting the steel pipe lower truss.

Fig. 7 is the front elevation view of setting up scaffold board, railing, scissors brace.

Fig. 8 is a side elevation view of setting up scaffold boards, railings, and scissors braces.

Fig. 9 is a front elevation view of setting up steel cables and side safety nets.

Fig. 10 is a side elevation view of setting up steel cables and side safety nets.

Fig. 11 is a front elevation view of a rigid hanging scaffold for installing equipment pipelines.

Fig. 12 is a side elevation view of a rigid hanging scaffold for installing equipment pipes.

In the figure: 1, the lower chord; 2, the safety net of the lower chord; 3 the upper chord; 4, the upper truss of the steel pipe; Scaffold longitudinal horizontal bar; 7', the bottommost scaffold longitudinal horizontal bar; 8, steel pipe lower truss; 9, scaffolding board; 10, railing; 11, scissors support; 14. Equipment pipeline.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Fig. 1-Fig. 12, the present invention forms a rigid hanging scaffold by multiple steel pipe upper trusses 4 of the same structure and multiple hanging scaffolds of the same structure; Vertical direction, erected between no less than two upper chords 3 of the steel roof, each steel pipe upper truss 4 should be connected with each other to form a whole; Set up under the upper truss 4 of each steel pipe, the length of the "hanging air corridor" formed by the vertical connection between multiple hanging scaffolds is the same as the length of the corresponding equipment pipeline 14; the upper truss 4 of each steel pipe and the length of each The connection relationship of hanging scaffolding is as follows:

1) The upper, lower, left, and right members of the steel pipe upper truss 4 are rigidly connected and fixed with fasteners to form a hoop, which hoops the upper chord 3 of the steel roof, and then places it on the upper chord 3 of the steel roof along the vertical direction of the equipment pipeline. 3 erect steel pipe upper truss 4;

2) Under the upper truss 4 of the steel pipe, set up a hanging scaffold along the direction of the equipment pipeline 14: first, rigidly connect the two vertical rods 5 with the horizontal rods of the upper truss 4 of the steel pipe with fasteners, and then connect multiple scaffolding horizontal horizontal rods 6 The two ends of the horizontal horizontal rod 6' of the bottom scaffold are rigidly connected with the vertical rod 5 with fasteners, and then each vertical horizontal rod 7 of the scaffold is respectively erected on the horizontal horizontal rod 6 of the scaffold and the horizontal horizontal rod 6' of the bottom scaffold. On the top, it is rigidly connected with the horizontal horizontal bar 6 of the scaffold and the horizontal horizontal bar 6' of the bottommost scaffold with fasteners, and is rigidly connected with each vertical pole 5 with fasteners; Rigid connection of parts;

3) Set up a steel pipe lower truss 8 below the horizontal horizontal bar 6' of the bottommost scaffold;

4) Lay the scaffold board 9 above the bottom vertical horizontal bar 7' of the scaffold to form a support frame and a working platform;

5) Bind the lower chord safety net 2 on the lower chord 1 of the steel roof; bind the side safety net (13) on the side of the vertical pole 5.

A plurality of railings 10 are rigidly connected with fasteners on each of the vertical poles 5 . Steel cables 12 with blue screws are respectively connected between the two ends of the upper chord 3 and the two ends of the bottom longitudinal horizontal bar 7' of the scaffold, so that the suspended scaffold becomes a stable structure with constant geometry.

In the rigid hanging scaffolding system of the present invention, the steel pipe upper truss is erected on the upper chord of the steel roof along the vertical direction of the equipment pipeline, and then the hanging scaffold is erected according to the direction of the equipment pipeline; the erection steps are as follows:

(1) As shown in Figure 1 and Figure 2, before erecting the upper truss of the steel pipe, the safety net shall be bound on the horizontal plane of the lower chord of the steel roof. To ensure the safety of scaffold erection personnel and ground construction personnel.

(2) As shown in Fig. 1 and Fig. 2, the scaffold construction workers set up the steel pipe upper truss 4 on the upper chord 3 of the steel roof. The upper, lower, left and right bars of the steel pipe upper truss 4 are rigidly connected and fixed with fasteners to form a hoop, which hoops the upper chord 3 of the steel roof. Then erect the steel pipe upper truss 4 on the steel roof upper chord 3 along the vertical direction of the equipment pipeline.

(3) As shown in Figure 3 and Figure 4, set up hanging scaffolding along the direction of the equipment pipeline under 4 trusses on the steel pipe. First, rigidly connect the vertical rod 5 with the horizontal rod of the steel pipe upper truss 4 with fasteners, then rigidly connect the horizontal horizontal rod 6 of the scaffold with the vertical rod 5 with fasteners, and then connect the vertical horizontal rod 7 of the scaffold with the vertical rod 5 with fasteners Rigid connection. The horizontal horizontal bar 6 of the scaffold is at the bottom, and the vertical horizontal bar 7 of the scaffold is at the top.

(4) As shown in Fig. 5 and Fig. 6, a steel pipe lower truss 8 is set up below the horizontal horizontal bar 6' of the scaffolding at the bottom.

(5) as shown in Fig. 7, Fig. 8, shop scaffolding board 9 above the vertical horizontal bar 7 ' of the scaffolding at the bottom, form bracing frame and working platform.

(6) As shown in Fig. 7 and Fig. 8, the multi-track railing 10 is rigidly connected with each vertical pole 5 with fasteners.

(7) As shown in Figure 7 and Figure 8, rigidly connect the scissors support 11 with the vertical rod 5 with fasteners.

(8) As shown in Figure 9 and Figure 10, the steel cable 12 two ends with blue screw are tied up respectively on upper chord bar 3 and the bottom one scaffold vertical horizontal bar 7 ', and fix with U-shaped card. The steel cable 12 is used as an auxiliary technical measure for safety protection. After installation, the steel cable 12 is tightened by a blue screw, so that the hanging scaffolding structure becomes a geometrically constant stable structure, increasing its rigidity and safety reliability.

(9) As shown in Figure 9 and Figure 10, bind the side safety net 13 on the side of the pole.

(10) As shown in Figure 11 and Figure 12, in the rigid hanging scaffold in the shape of a "hanging air corridor" formed, the scaffolding board 9 is not only a working platform for construction personnel, but also a temporary shelving platform for equipment pipelines 14 . The equipment pipeline installer installs the equipment pipeline 14 according to relevant technical specifications.

Claims (4)

1. the method for an installing pipeline scaffold of steel roof equipment, it is characterized in that: the capwise at the upper chord upper edge of steel roof structure equipment pipe is set up truss on the steel pipe of being made up of fastener type steel pipe scaffold, form the supporting construction of suspended scaffold, the trend of truss lower edge equipment pipe is set up rigidly connected with it suspended scaffold and platform thereof on steel pipe, it is identical with the corresponding equipment duct length to form " the aerial vestibule of suspension type ", as the bracing frame of equipment pipe installation and constructor's working platform, " the aerial vestibule of suspension type " bottom draws steel cable to link to each other with steel roof system upper chord, constitute constant rock-steady structure how much, strengthened the rigidity and stability of suspended scaffold.

2. by a kind of rigid suspended scaffold that the steel roof equipment pipeline is installed of the described method of claim 1, it is characterized in that: it constitutes a rigid suspended scaffold by the suspended scaffold of truss (4) and many Pin same configuration on the steel pipe of many Pin same configuration; Truss (4) is along the capwise of equipment pipe (14) on every Pin steel pipe, sets up in being no less than between two upper chords (3) of steel roof system, and truss (4) should connect into a globality each other on each Pin steel pipe; Each Pin suspended scaffold is the trend along equipment pipe (14), hangs and sets up truss (4) below on each Pin steel pipe, and the length of " the aerial vestibule of suspension type " that vertically is linked to be between many Pin suspended scaffold is identical with corresponding equipment pipeline (14) length; The annexation of truss (4) and every Pin suspended scaffold is as follows on every Pin steel pipe:

1) the rod member upper and lower, left and right of truss (4) are rigidly connected with fastener and fix the formation anchor ear on the steel pipe, wale the upper chord (3) of steel roof system, set up truss on the steel pipe (4) along the capwise of equipment pipe on the upper chord (3) of steel roof system then;

2) under truss on the steel pipe (4), trend along equipment pipe (14) is set up suspended scaffold: earlier the horizon bar of truss (4) on two vertical rods (5) and the steel pipe is rigidly connected with fastener, again the two ends of many scaffold transverse horizontal bars (6) and the most beneath transverse horizontal bar of scaffold together (6 ') and vertical rod (5) are rigidly connected with fastener, again every scaffold vertical equity bar (7) is erected at respectively on scaffold transverse horizontal bar (6) and the most beneath transverse horizontal bar of scaffold together (6 '), be rigidly connected with fastener with scaffold transverse horizontal bar (6) and the most beneath scaffold transverse horizontal bar (6 '), and be rigidly connected with fastener with vertical every vertical rod (5); Bridging (11) and vertical rod (5) infall are rigidly connected with fastener;

3) set up truss under the steel pipe (8) in the below of the most beneath one scaffold transverse horizontal bar (6 ');

4) shop scaffold floor (9) on the most beneath one scaffold vertical equity bar (7 ') forms bracing frame and working platform;

5) go up colligation lower chord safety net (2) at the lower chord (1) of steel roof system; At vertical rod (5) side colligation side safety net (13).

3. a kind of rigid suspended scaffold that the steel roof equipment pipeline is installed according to claim 2 is characterized in that: described every vertical rod (5) is gone up with the fastener multiple tracks railing (10) that is rigidly connected.

4. a kind of rigid suspended scaffold that the steel roof equipment pipeline is installed according to claim 2, it is characterized in that: the steel cable (12) of difference connecting band turnbuckle screw between described upper chord (3) two ends and the most beneath vertical equity bar of scaffold together (the 7 ') two ends makes suspended scaffold constitute constant rock-steady structure how much.

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