CN103276886A - Overhanging frame at position of high-rise building sloping roof outer eave window and construction method thereof - Google Patents

Abstract

A cantilever frame at the outer eave window of a high-rise building and a construction method thereof. The cantilever frame includes inner double vertical poles, an inner sweeping pole, and four outer horizontal poles suspended from the four corners of the window. Downstream rods on the inside and outside of the window, and large crossbars, vertical rods, small crossbars, scaffolding boards, horizontal safety nets, facade safety nets, horizontal large meshes and facade large meshes erected on the outside of the window. The outer horizontal rod is set up on the inner side of the window and the inner double vertical rod to form a well shape. The large horizontal bar on the outside of the window is provided with two upper and lower bars, the lower part of the vertical bar is connected with the upper and lower two large horizontal bars, and the upper part of the vertical bar is connected with the small horizontal bar. The scaffolding boards are laid on the lower row of horizontal bars cantilevered from the windows. The invention can ensure construction safety, fast construction speed, easy quality assurance and low comprehensive cost, and better solve the construction and protection problems of the outer eaves of high-rise buildings with sloped roofs, achieving safety, economy, fast construction speed and easy construction quality assurance technical effect.

Description

Cantilever frame at the window of the outer eaves of the sloping roof of a high-rise building and its construction method

technical field

The invention relates to a building scaffolding, in particular to a cantilever frame for construction and protection of the outer eaves of a high-rise building slope and a construction method thereof.

Background technique

The choice of construction method for the outer eaves of high-rise buildings often determines the construction safety, construction speed, construction quality and comprehensive cost of the outer eaves. When using traditional floor-standing single (double) row steel pipe scaffolding or section steel cantilevered scaffolding for outer eaves construction, it is necessary to remove the scaffolding from top to bottom while constructing. The sealing of various openings and the treatment of the wall surface will be carried out in the first stage, the construction speed is relatively slow, and the construction quality is not easy to guarantee. When the hanging basket method is used for the construction of the outer eaves, various openings are blocked and wall surface treatment is carried out during the dismantling stage of the structural scaffolding, so the construction speed is fast and the quality is good. However, for high-rise buildings with inclined roofs, the hanging basket method It is impossible to carry out the construction of the outer eaves of the sloped roof, and the safety protection of the roof is not easy to solve.

Contents of the invention

The invention provides a cantilever frame at the window of the outer eaves of a sloping roof of a high-rise building and a construction method thereof, which solve the technical problems of long occupation period, slow construction speed, difficulty in ensuring construction quality, and poor safety of existing scaffolding used for eaves construction.

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

This kind of cantilever frame at the window of the outer eaves of the sloping roof of a high-rise building includes double vertical poles on the inside, sweeping poles on the inside, four horizontal poles hanging from the four corners of the window, and water-shunning poles on the inside and outside of the window respectively. And the large crossbars, vertical poles, small crossbars, scaffolding boards, horizontal safety nets, facade safety nets, horizontal large meshes and facade large meshes erected on the outside of the window;

The outer horizontal rods are set up on the inner side of the window and the inner double vertical rods to form a well shape, the top and bottom of the inner double vertical rods are respectively pressed against the roof and the floor by the oil tray, and the bottom of the inner double vertical rods is also connected to the inner sweeping rod;

The parallel rods on the inner side and the outer side of the window are arranged in parallel, and locked and fixed with the horizontal rods on the outside;

The large horizontal bar on the outside of the window is erected with two upper and lower large horizontal bars, which are respectively connected with the ends of the upper and lower rows of horizontal bars suspended from the window; the vertical bars are vertically spaced apart, and the vertical bars The lower part is connected with the upper and lower two large horizontal bars, and the upper part of the vertical bar is connected with the small horizontal bar; the scaffolding board is laid on the lower row of horizontal rods suspended from the window, and the horizontal safety net and large horizontal mesh are hung under the scaffolding board , the facade safety net and the facade large mesh are suspended on the outside of the pole.

The inner side of the window is also provided with an inner diagonal tie rod, the top of the inner diagonal tie rod is tightened by the oil tray and the roof top plate, and the lower part of the inner diagonal tie rod is respectively connected with the external horizontal rod and the inner sweeping rod.

Outer diagonal stay rods arranged crosswise are also connected between the vertical rod and the horizontal rod protruding outward.

Wood squares are padded between the downstream rod and the concrete wall.

Wood squares are placed between the overhanging horizontal bar and the concrete wall at the window.

Wooden squares are padded between the top of the inner double poles and the roof top plate, and wooden squares are padded between the bottom and the floor slab.

The construction method of the cantilever frame at the window of the outer eaves of the inclined roof of this high-rise building, the construction steps are as follows:

Step 1: Erection of the inner double vertical poles, the top and bottom of the inner double vertical poles are respectively tightened with the roof top and the floor by oil trays;

Step 2: The inner sweeping pole is erected, and the inner sweeping pole is connected to the bottom of the inner double vertical pole;

Step 3: Erection of the overhanging horizontal rods. Four outrigger horizontal rods are cantilevered from the four corners of the window, and the overhanging horizontal rods are erected on the inner side of the window and the inner double vertical rods to form a well shape;

Step 4: Set up the downstream rods, set the downstream rods on the inside and outside of the window in parallel, and lock and fix them with the horizontal rods on the outside;

Step 5: To set up the outer scaffolding, firstly connect the upper and lower two large horizontal bars to the ends of the upper and lower rows of horizontal bars cantilevered from the window; Rod connection, connect the small horizontal bar on the upper part of the vertical bar; then lay the scaffolding board on the horizontal rod hanging out from the window in the lower row, hang the horizontal safety net and the horizontal large mesh on the frame under the scaffolding board, and install it on the vertical rod The outer side hangs the safety net of the facade and the large mesh of the facade.

Features of the present invention are as follows:

The present invention uses cantilevered horizontal rods as the supporting structure of the cantilevered frame, and erects vertical rods, horizontal rods, diagonal rods and other components on it to form a continuous and stable structure, then lays scaffolding boards, hangs safety nets, and finally forms Enclosed platform for eaves construction and roof protection. The diameter and length of the cantilevered horizontal bar and the overall structure of the cantilever frame are calculated and designed according to various loads generated during construction. The suspension frame is fixed with the main structure through connecting components to ensure the stability, safety and reliability of the suspension frame. During construction, various vertical and horizontal loads act on the cantilever frame, and are transmitted to the connecting members through the cantilevered horizontal bar, and finally to the main structure. The required materials of the present invention are conventional turnover materials such as conventional steel pipes and buckles, U brackets, wooden scaffolding boards, dense-mesh nets and large-eye nets.

The present invention has the following advantages:

1. The safety of operators can be guaranteed when the cantilever frame is erected and dismantled.

2. During the construction of the outer eaves, it is safe for workers to operate and protect.

3. Provide good roof protection.

4. Compared with the traditional floor-standing single (double) row steel pipe scaffolding or section steel cantilevered scaffolding, the structure of the cantilevered frame is simple and convenient for construction. Comprehensive fee.

5. Solved the construction problem of the sloping roof part of the high-rise building with sloping roof, and cross construction can be carried out to ensure the overall construction period. Since the cantilever frame does not occupy the roof part, the construction of the outer eaves and the roof can be carried out at the same time without mutual influence and restriction.

The invention can ensure construction safety, fast construction speed, easy quality assurance and low comprehensive cost, and better solve the construction and protection problems of the outer eaves of high-rise buildings with sloped roofs, achieving safety, economy, fast construction speed and easy construction quality assurance technical effect.

Description of drawings

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

Fig. 1 is a structural schematic diagram of the present invention.

Reference signs: 1-inside double uprights, 2-inside sweeping rods, 3-outside horizontal rods, 4-downward rods, 5-vertical rods, 6-outside slanted rods, 7-inner slanted rods, 8-large horizontal rods Rod, 9-small horizontal bar, 10-oil support, 11-wooden square, 12-scaffold board, 13-horizontal safety net, 14-facade safety net, 15-facade large eye net, 16-roof roof, 17 -floor, 18-concrete wall, 19-horizontal large mesh.

Detailed ways

Referring to the embodiment shown in Figure 1, the cantilever frame at the window of the outer eaves of the sloping roof of this high-rise building includes double upright poles 1 on the inside, sweeping poles 2 on the inside, four outwardly protruding horizontal poles 3 suspended from the four corners of the window, The downstream rods 4 erected on the inside and outside of the window respectively, and the large horizontal rods 8, vertical rods 5, small horizontal rods 9, scaffolding boards 12, horizontal safety nets 13, facade safety nets 14, and horizontal large meshes erected on the outside of the window 19 and large mesh 15 on the facade.

Described overhanging horizontal bar 3 is set up in the inside of the window and inside double upright bar 1 to form a well-shaped shape, and between the overhanging horizontal bar 3 and the concrete wall 18 at the window is padded with wooden cubes 11 . The top and bottom of the inner double vertical pole 1 are respectively pressed against the roof top plate 16 and the floor 17 by the oil tray 10, the wooden square 11 is added between the top of the inner double vertical pole 1 and the roof top plate 16, and the bottom is cushioned with the floor 17 There are 11 wooden squares. The bottom of the inner double upright pole 1 is also connected with the inner side sweeping pole 2 . The inside of the window is also provided with an inside slanting tie rod 7, the top of the inside slanting tie rod 7 is tightly pressed by the oil tray 10 and the roof top plate 16, and a wooden square 11 is added between the top of the inside slanting tie rod 7 and the roof top plate 16. The lower part of the inside diagonal stay rod 7 is connected with the outside horizontal rod 3 and the inside sweeping rod 2 respectively.

The smooth rods 4 on the inside and outside of the window are arranged parallel to each other, and are locked and fixed with the horizontal rods 3 protruding outward. A wooden square 11 is added between the downstream rod 4 and the concrete wall 18 .

The large crossbar 8 on the outside of the window is provided with two up and down, and the upper and lower two large crossbars 8 are respectively connected with the ends of the upper and lower rows of horizontal bars 3 suspended from the window; the vertical bars 5 are vertically spaced Setting, the lower part of the vertical rod 5 is connected with the upper and lower two large horizontal rods 8, and the outer diagonal stay rod 6 arranged crosswise is also connected between the vertical rod 5 and the horizontal rod 3. The vertical bar 5 top is connected with small cross bar 9. The scaffold board 12 is laid on the lower horizontal bar 3 suspended from the window, the horizontal safety net 13 and the horizontal large mesh 19 are suspended below the scaffold board 12, the facade safety net 14 and the facade large mesh 15 are suspended on the outside of the pole 5.

Construction steps of the present invention are as follows:

Step 1, the inner double upright pole 1 is erected, and the top and bottom of the inner double upright pole 1 are respectively pressed against the roof top plate 16 and the floor slab 17 by the oil tray 10;

Step 2, the inner sweeping pole 2 is erected, and the inner sweeping pole 2 is connected to the bottom of the inner double vertical pole 1;

Step 3, erecting the overhanging horizontal rods 3, four outrigging horizontal rods are cantilevered from the four corners of the window, and the overhanging horizontal rods 3 are set up on the inside of the window and the inner double vertical rods 1 to form a well shape. In order to ensure that the overhanging horizontal bar 3 does not damage the window edges and corners when erecting, a wooden square 11 should be added between the overhanging horizontal bar and the concrete wall 18 at the window.

Step 4, set up the downstream rods 4, set the downstream rods 4 on the inside and outside of the window in parallel, and lock and fix them with the external horizontal rods 3;

Step 5, set up the outer scaffolding, first connect the upper and lower two large horizontal bars 8 with the ends of the upper and lower rows of horizontal bars 3 suspended from the window; Root big crossbar 8 connects, connects small crossbar 9 at vertical rod 5 tops; Vertical distance 1.20 meters, vertical distance 1.05 meters, small crossbar step distance 1.50 meters. Then lay the scaffold board 12 on the overhanging horizontal bar 3 that hangs out from the window in the lower row, hang a horizontal safety net 13 and a large horizontal mesh 19 on the frame below the scaffold board, hang a facade safety net 14 on the outside of the pole 5 And facade large mesh 15.

The protective height of the cantilever out of the roof shall not be less than 2000mm.

After the cantilever frame is erected, the cantilevered steel beams of the outer eaves hanging baskets are installed from the window, and the outdoor hanging baskets are installed in sequence.

Claims (7)

1. A cantilever frame at the window of the outer eaves of a high-rise building, which is characterized in that it includes inner double vertical poles (1), inner sweeping poles (2), and four outer horizontal poles suspended from the four corners of the window (3), the downstream rods (4) erected on the inside and outside of the window respectively, and the large crossbar (8), vertical pole (5), small crossbar (9), scaffolding board (12), Horizontal safety net (13), facade safety net (14), horizontal large mesh (19) and facade large mesh (15); The external horizontal bar (3) is set up on the inner side of the window and the inner double vertical bar (1) to form a well shape, and the top and bottom of the inner double vertical bar (1) are respectively connected with the roof top plate (16) and the floor ( 17) The top is tight, and the bottom of the inner double vertical pole (1) is also connected with the inner sweeping pole (2); The smooth rods (4) on the inside and outside of the window are arranged in parallel in pairs, and locked and fixed with the horizontal rods (3) on the outside; The large horizontal bar (8) on the outside of the window is set up with two upper and lower large horizontal bars (8), which are respectively connected with the ends of the upper and lower rows of horizontal bars (3) cantilevered from the window; The vertical poles (5) are arranged at vertical intervals, the lower part of the vertical poles (5) is connected with the upper and lower two large horizontal bars (8), and the upper part of the vertical poles (5) is connected with the small horizontal bars (9); the scaffold board (12) is laid On the overhanging horizontal bar (3) that hangs out from the window in the lower row, the horizontal safety net (13) and the horizontal large mesh (19) are suspended below the scaffolding board (12), and the facade safety net (14) and the facade Large mesh (15) is suspended on the outside of the vertical rod (5). 2. The cantilever frame at the window of the outer eaves of the high-rise building sloped roof according to claim 1, characterized in that: the inner side of the window is also provided with an inner diagonal tie rod (7), and the top of the inner diagonal tie rod (7) is supported by an oil support ( 10) Tighten with the roof slab (16), and connect the lower part of the inner diagonal tie rod (7) with the outer horizontal rod (3) and the inner sweeping rod (2) respectively. 3. The cantilever frame at the window of the outer eaves of the sloping roof of a high-rise building according to claim 1, characterized in that: there is also an outer oblique set crosswise between the vertical bar (5) and the overhanging horizontal bar (3). Pull rod (6). 4. The cantilever frame at the window of the eaves of the sloping roof of a high-rise building according to claim 1, characterized in that: wooden squares (11) are padded between the downstream rod (4) and the concrete wall (18). 5. The cantilever frame at the window of the outer eaves of the sloping roof of a high-rise building according to claim 1, characterized in that: there is a wooden cushion between the overhanging horizontal bar (3) and the concrete wall (18) at the window Square (11). 6. The cantilever frame at the window of the outer eaves of the sloping roof of a high-rise building according to claim 1, characterized in that: wooden squares (11 ), there is a wooden side (11) for padding between the bottom and the floor (17). 7. A construction method of a cantilever frame at the outer eave window of a high-rise building sloped roof as described in any one of claims 1 to 6, wherein the construction steps are as follows: Step 1: Erection of the inner double uprights (1), the top and bottom of the inner double uprights (1) are respectively pressed against the roof top (16) and the floor (17) by the oil tray (10); Step 2, the inner sweeping pole (2) is erected, and the inner sweeping pole (2) is connected to the bottom of the inner double vertical pole (1); Step 3, erecting the overhanging horizontal rods (3), four overhanging horizontal rods are suspended from the four corners of the window, and the overhanging horizontal rods (3) are erected on the inner side of the window and the inner double vertical rods (1) to form a well shape; Step 4: Set up the downstream rods (4), set the downstream rods (4) on the inside and outside of the window in parallel, and lock and fix them with the horizontal rods (3); Step 5: To set up the outer scaffolding, first connect the upper and lower two large horizontal bars (8) to the ends of the upper and lower rows of horizontal bars (3) suspended from the window; then connect the vertically spaced vertical bars ( 5) The lower part is connected to the upper and lower two large horizontal bars (8), and the small horizontal bar (9) is connected to the upper part of the vertical bar (5); then a scaffolding board is laid on the lower horizontal bar (3) that hangs out from the window (12), hang the horizontal safety net (13) and the horizontal large mesh (19) on the frame below the scaffolding board, and hang the facade safety net (14) and the facade large mesh (15) on the outside of the pole (5) .

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