CN218990875U - Assembled triangular truss cantilever support frame system - Google Patents

Abstract

The utility model provides an assembled triangular truss overhanging support frame system, which is characterized in that a wall leaning square tube, an inclined support square tube and a top square tube are connected end to end and welded to form a triangular truss support frame, an inner support inclined square tube, an inner support transverse square tube and an inner support vertical square tube are fixed inside the triangular truss support frame through welding, the triangular truss support frame is fixed on a structural wall body through a through-wall bolt passing through a reserved bolt hole, one surface of a backing steel plate is welded and fixed with the wall leaning square tube, the other surface of the backing steel plate is pressed on the structural wall body, and I-steel is vertically fixed on the top square tube through a zigzag fastening gasket. Also discloses a mounting method of the assembly type triangular truss overhanging support frame system. The utility model is fixedly connected with the structural wall body through the high-strength bolts, so that the structural steel bar and the concrete are extremely damaged, and meanwhile, the hidden trouble of later leakage caused by reserving a larger hole in the wall body is reduced. The device has the advantages of firmness, stability, good integrity, convenient installation and disassembly, difficult damage, high turnover frequency and good economic benefit.

Description

An Assembled Triangular Truss Cantilever Support Frame System

technical field

The utility model relates to the technical field of building construction, in particular to an assembled triangular truss suspension support frame system.

Background technique

In order to meet the needs of structural construction and exterior decoration construction, external protective scaffolding needs to be erected during high-rise building construction. In recent years, cantilevered steel pipe scaffolding has the characteristics of less one-time investment, wide application range, no limitation of floor height and site, and reusable characteristics. The fastener-type steel pipe scaffolding erected in sections cantilevered is very common. However, due to its special load transmission route and complex technical requirements, it has a significant impact on personnel safety, construction quality, and construction speed. All have strict requirements.

The traditional steel cantilever frame has many defects: (1) waste of material: the cantilevered steel beam penetrates the wall and extends into the indoor anchorage soil floor beam and floor slab, and the anchorage length is not less than 1.25 times of the outward cantilever. Standard requirements will cause a lot of waste of steel; (2) Delay in construction progress: traditional steel cantilever frames need to anchor a long section of I-beam inward, which will affect the normal progress of other indoor processes, which is not conducive to interspersed processes and rapid construction (3) Reduce the construction quality: When the cantilevered I-beam is arranged, a large hole will be reserved on the wall, which will destroy the integrity of the structure, and it will be difficult to seal in the later stage, which will easily cause water seepage. At the same time, with the widespread application of prefabricated buildings, prefabricated exterior walls need to be sealed and grouted, and holes cannot be reserved on the walls to meet the installation of traditional steel cantilever frames. Therefore, the traditional section steel cantilever can no longer meet the current requirements of green, environment-friendly and energy-saving construction.

Utility model content

In order to overcome the problems existing in the prior art, the utility model provides an assembled triangular truss cantilever support frame system.

A prefabricated triangular truss cantilever support frame system, including a structural wall, a square tube against the wall and a diagonally braced square tube, a top square tube, a backing steel plate and an inner braced oblique square tube, an inner braced horizontal square tube, and an inner braced vertical tube. Square tubes and I-beams, the square tubes against the wall, the diagonally braced square tubes and the top square tubes are welded end-to-end to form a triangular truss cantilevered support frame, and the inner braced square tubes, inner braced horizontal square tubes and inner braced vertical The square tube is fixed to the inside of the triangular truss cantilever support frame by welding, the square tube against the wall is provided with reserved bolt holes, and the triangular truss support frame is fixed on the structural wall through the wall bolts passing through the reserved bolt holes One side of the backing steel plate is welded and fixed to the square pipe against the wall, and the other side of the backing steel plate is pressed against the structural wall, and the I-beam is vertically fixed to the top square pipe through zigzag fastening gaskets (3) superior.

Further, pre-embedded threaded holes are provided on the structural wall, and reserved bolt holes are provided on the square pipe against the wall and the backing steel plate. The reserved bolt holes correspond to the positions of the pre-embedded threaded holes. Bolt holes and pre-embedded threaded holes are used to fix the square pipe against the wall and the backing steel plate to the structural wall.

Further, 4 bolt holes with a diameter of 20 mm are set on the top square pipe, and the 2 zigzag fastening gaskets are fixed to the top square pipe through 2 M14×120 bolts through the bolt holes, and the I-shaped steel is clamped Between 2 zigzag fastening washers.

Further, square steel tubes with a minimum cross-section greater than 80×80mm and a maximum cross-section less than 120×120mm and a wall thickness between 5 and 6mm are selected for the wall-side square pipe and the top square pipe. For square steel pipes less than 80×80mm, with a wall thickness between 3 and 4mm, the minimum cross-section of the inner support oblique square pipe (4), inner support horizontal square pipe (5) and inner support vertical square pipe (6) is selected to be greater than 30× 30mm square steel pipe with a maximum cross-section of less than 50×50mm and a wall thickness between 3 and 4mm.

Further, the thickness of the backing steel plate (7) is 5-7mm.

The second technical solution provided by the utility model is:

A method for installing a prefabricated triangular truss cantilever support system, comprising the following steps:

Step 1) According to the positioning diagram of the bolt hole through the wall of the triangular truss type support frame, set the embedded threaded hole on the structural wall;

Step 2) After the concrete pouring of the roof of the floor where the triangular bracing frame needs to be installed is completed, the positioning line of the triangular truss type bracing frame is released, and the line is pulled through horizontally, and the square tube against the wall, the square tube with diagonal support, the square tube at the top, and the backing steel plate , Inner braced oblique square tube, inner braced horizontal square tube and inner braced vertical square tube are welded into a triangular truss cantilevered support frame, and the welded triangular truss cantilevered support frame is fixed on the structural wall through the wall bolts. Erect the I-beam on the triangular truss cantilever support frame on the structural wall, and fix the I-beam on the triangular truss cantilever support frame on the structural wall through zigzag fastening gaskets;

Step 3) Check and accept the triangular truss cantilever support system;

Step 4) After the acceptance of the triangular truss-type cantilever support frame system is passed, a protective scaffold is erected on its upper part, and the scaffold is put into use after passing the acceptance.

Further, the step 2) includes

2.1) After the concrete pouring of the roof of the floor where the triangular bracing frame needs to be installed is completed, release the positioning line of the triangular truss type bracing frame and pull the line horizontally;

2.2) Weld the square tube against the wall, the diagonally braced square tube and the top square tube end to end to form a triangular truss cantilever support frame, and then weld and fix the inner inclined square tube to the triangular truss suspension along the diagonal line of the triangular truss cantilever support frame. In the support frame, weld and fix the inner support horizontal square tube to the triangular truss cantilever support frame along the direction parallel to the top square tube, weld and fix the inner support vertical square tube to the triangular truss cantilever along the direction parallel to the wall square tube in the support frame;

2.3) Weld the backing steel plate on the outside of the square tube against the wall, set reserved bolt holes on the backing steel plate and the square tube against the wall, and fix the square tube against the wall and the backing steel plate to the On the structural wall, the backing steel plate is sandwiched between the structural wall and the square tube against the wall, and the square tube against the wall is fixed to the structural wall to fix the integral triangular truss cantilever support frame on the structural wall;

2.4) Erect the I-beam on the triangular truss cantilever support frame fixed on the structural wall, and fix the I-beam on the triangular truss cantilever support frame on the structural wall through zigzag fastening gaskets.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

(1) The utility model only uses two high-strength bolts to fix the triangular truss cantilever support frame to the structural wall, which has minimal damage to the structural steel bars and concrete, and at the same time reduces the later seepage caused by the large openings reserved for the wall. Leakage hidden dangers, reliable installation, high safety factor reserve, effectively eliminate hidden dangers of construction safety;

(2) The overall installation and dismantling of the utility model is convenient, which speeds up the construction progress;

(3) The cantilever support frame of the triangular truss of the utility model is welded, has good integrity, is not easy to be damaged, has high turnover times, and has good economic benefits.

Description of drawings

Fig. 1 is a front view of an assembled triangular truss type cantilever support frame system along the direction of the outer wall of the utility model;

Fig. 2 is a right view of an assembled triangular truss-type cantilevered support frame system of the present invention;

Fig. 3 is a top view of an assembled triangular truss-type cantilevered support frame system of the present invention;

Fig. 4 is a schematic diagram of the connection structure between the top square tube and the I-beam in an assembled triangular truss-type cantilever support frame system of the utility model.

Explanation of symbols in the accompanying drawings:

1-Square tube against the wall, 2-Slant square tube, 3-Square tube at the top, 4-Ramp square tube with inner support, 5-Horizontal tube with inner support, 6-Vertical square tube with inner support,

7-Backing steel plate, 8-Reserved bolt holes, 9-Through the wall bolts, 10-Setting bolt holes, 11-I-beam set bolts,

12-structural wall, 13-zigzag fastening gasket, 14-I-beam.

Detailed ways

In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Wherein, the accompanying drawings are for illustrative purposes only, and represent only schematic diagrams, rather than actual drawings, and should not be construed as limitations on this patent; in order to better illustrate the embodiments of the present utility model, some parts of the accompanying drawings will be omitted , enlargement or reduction, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some known structures and their descriptions in the drawings may be omitted.

In the drawings of the embodiments of the utility model, the same or similar symbols correspond to the same or similar components; The orientation or positional relationship indicated by "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as limitations on this patent. For those of ordinary skill in the art, The specific meanings of the above terms can be understood according to specific situations.

In the description of this patent, unless otherwise clearly stipulated and limited, if the term "connection" appears to indicate the connection relationship between parts, the term should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two parts or the interaction relationship between two parts. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

A prefabricated triangular truss cantilever support system and its installation method, as shown in Figures 1 to 4, the prefabricated triangular truss cantilever support system includes: a structural wall 12, a square tube against the wall 1 and a diagonal bracing square Pipe 2, top square pipe 3, backing steel plate 7, inner support oblique square pipe 4, inner support horizontal square pipe 5, inner support vertical square pipe 6 and I-beam 14, the wall-side square pipe 1, diagonal support square pipe The tube 2 and the top square tube 3 are welded end to end to form a triangular truss cantilevered support frame, and the inner braced oblique square tube 4, inner braced horizontal square tube 5 and inner braced vertical square tube 6 are fixed to the triangular truss cantilevered support frame by welding Inside, the square pipe 1 against the wall is provided with reserved bolt holes 8, and the triangular truss-type support frame is fixed on the structural wall 12 through the wall-through bolts 9 passing through the reserved bolt holes 8, and the backing steel plate One side of 7 is welded and fixed with the square pipe 1 against the wall, and the other side of the backing steel plate 7 is pressed onto the structural wall 12, and the I-beam 14 is vertically fixed on the top square pipe 3 through the zigzag fastening gasket 13. The main load-bearing frame and support frame of the triangular truss cantilever support frame are welded end-to-end through the square tube 1 against the wall, the diagonally braced square tube 2 and the top square tube 3, and the inner braced square tube 4, the inner braced horizontal square tube 5 and the inner The vertical square tube 6 is fixed to the inside of the triangular truss cantilever support frame by welding to form a force transmission frame. The welding connection can make the triangular truss cantilever support frame structure more firm, strong in integrity, and not easy to be damaged. A reserved bolt hole 8 is provided on the wall-side square pipe 1 , and the triangular truss-type support frame is fixed on the structural wall 12 through the wall-through bolt 9 passing through the reserved bolt hole 8 . In this structure, the wall-mounted square tube 1 is fixed on the structural wall 12 through the wall-through bolt 9 passing through the reserved bolt hole 8, that is, the triangular truss cantilever support frame is fixed on the structural wall 12. Structural steel bars and concrete damage are minimal, and at the same time, the hidden danger of later leakage caused by the large openings reserved in the wall is reduced. The installation is reliable, and the safety factor reserve is high, effectively eliminating hidden dangers in construction safety. Simultaneously, one side of the backing steel plate 7 is welded and fixed with the square pipe 1 against the wall, and the other side of the backing steel plate 7 is pressed against the structural wall 12, that is, the backing steel plate 7 is clamped between the square pipe 1 against the wall and the structural wall 12 Between them, it is used to disperse the load that the wall-side square pipe 1 acts on the structural wall 12 . The I-beam 14 is vertically fixed on the top square pipe 3 through the zigzag fastening gasket 13, which can firmly prevent sliding and fix the I-beam 14 on the top square pipe 3.

Further, as shown in Figures 1 to 4, pre-embedded threaded holes are set on the structural wall 12, and reserved bolt holes 8 are set on the square pipe 1 against the wall and the backing steel plate 7, and the reserved bolt holes 8 are connected with the pre-installed bolt holes. The positions of the buried threaded holes correspond to each other, and the square pipe 1 against the wall and the backing steel plate 7 are fixed to the structural wall 12 through the wall bolts 9 passing through the reserved bolt holes and the pre-embedded threaded holes. The above structure specifically defines the connection relationship between the structural wall body 12 and the triangular truss cantilever support frame system. Specific to the specific structure, the square pipe 1 against the wall and the backing steel plate 7 are provided with a reserved bolt hole 8, the reserved bolt hole 8 corresponds to the position of the pre-embedded threaded hole, and the wall-through bolt 9 passes through the reserved bolt hole The square pipe 1 against the wall and the backing steel plate 7 are fixed to the structural wall 12 through the embedded threaded holes.

Further, as shown in Figures 1 to 4, the wall-through bolts 9 are 32#C grade high-strength bolts, the number of the reserved bolt holes 8 is equal to the number of pre-embedded threaded holes is 2, and the positions are similar Correspondingly, the two reserved bolt holes 8 are evenly spaced on the square pipe 1 against the wall, the two pre-embedded threaded holes are evenly spaced on the structural wall 12, and the diameters of the two reserved bolt holes 8 are equal to The diameter of the 2 pre-embedded threaded holes is 40mm. According to engineering mechanics calculations, the wall-through bolts 9 are selected as 32#C grade high-strength bolts to fix the triangular truss cantilever support system on the structural wall 12 . Correspondingly, the wall-through bolt 9 is selected as a 32#C grade high-strength bolt, and the diameters of the embedded threaded hole and the reserved bolt hole 8 are both 40mm.

Further, as shown in Figures 1 to 4, four positioning bolt holes 10 with a diameter of 20mm are set on the top square tube 3, and the two zigzag fastening washers 13 pass through two M14×120 bolts 11 for positioning. The bolt hole 10 is fixed to the top square pipe (3), and the I-beam 14 is clamped between two zigzag fastening washers 13. This structure specifically defines how the I-beam 14 is fixed on the top square pipe 3 through the zigzag fastening gasket 13 .

Further, as shown in Figures 1 to 4, the wall-side square pipe 1 and the top square pipe 3 are square steel pipes with a minimum cross-section greater than 80×80mm, a maximum cross-section less than 120×120mm, and a wall thickness between 5 and 6mm. The support square tube 2 is a square steel tube with a minimum cross-section greater than 60×60mm, a maximum cross-section less than 80×80mm, and a wall thickness between 3 and 4mm. The pipe 6 is a square steel pipe with a minimum cross-section greater than 30×30mm, a maximum cross-section less than 50×50mm, and a wall thickness between 3 and 4mm. Compared with the use of angle iron as each part of the triangular truss cantilever support frame in the prior art, in the utility model, the square tube is selected for more uniform welding to form a triangular truss cantilever support frame that is firmer and more stable. According to the force calculation of the triangular truss cantilever support frame in the project, different sizes of square tubes in different parts are selected. In this embodiment, the optimal size of the wall-side square tube 1 and the top square tube 3 is 100×100×6mm square steel tube, and the optimal size of the diagonally braced square tube 2 is 70×70×4mm square steel tube. The optimal size of the square tube 4, the inner support horizontal square tube 5 and the inner support vertical square tube 6 is 40×40×4mm square steel pipe.

Further, as shown in FIG. 1 to FIG. 4 , the thickness of the backing steel plate 7 is between 5 mm and 7 mm. The function of the backing steel plate 7 is firstly to disperse the load that the wall-side square pipe 1 acts on the structural wall 12, and secondly to prevent the triangular truss cantilever support frame from shaking left and right. According to engineering calculations, the thickness of the backing steel plate 7 is between 5 mm and 7 mm. In this embodiment, the thickness of the backing steel plate 7 is a 5 mm thick steel plate.

The utility model also discloses an installation method of an assembled triangular truss cantilever support frame system, which includes the following steps:

Step 1) According to the positioning diagram of the bolt hole through the wall of the triangular truss type support frame, set the embedded threaded hole on the structural wall;

Step 2) After the concrete pouring of the roof of the floor where the triangular bracing frame needs to be installed is completed, the positioning line of the triangular truss type bracing frame is released, and the line is pulled through horizontally, and the square tube against the wall, the square tube with diagonal support, the square tube at the top, and the backing steel plate , Inner braced oblique square tube, inner braced horizontal square tube and inner braced vertical square tube are welded into a triangular truss cantilevered support frame, and the welded triangular truss cantilevered support frame is fixed on the structural wall through the wall bolts. Erect the I-beam on the triangular truss cantilever support frame on the structural wall, and fix the I-beam on the triangular truss cantilever support frame on the structural wall through zigzag fastening gaskets;

Step 3) Check and accept the triangular truss cantilever support system;

Step 4) After the acceptance of the triangular truss-type cantilever support frame system is passed, a protective scaffold is erected on its upper part, and the scaffold is put into use after passing the acceptance.

Further, the step 2) includes

2.1) After the concrete pouring of the roof of the floor where the triangular bracing frame needs to be installed is completed, release the positioning line of the triangular truss type bracing frame and pull the line horizontally;

2.2) Weld the square tube against the wall, the diagonally braced square tube and the top square tube end to end to form a triangular truss cantilever support frame, and then weld and fix the inner inclined square tube to the triangular truss suspension along the diagonal line of the triangular truss cantilever support frame. In the support frame, weld and fix the inner support horizontal square tube to the triangular truss cantilever support frame along the direction parallel to the top square tube, weld and fix the inner support vertical square tube to the triangular truss cantilever along the direction parallel to the wall square tube in the support frame;

2.3) Weld the backing steel plate on the outside of the square tube against the wall, set reserved bolt holes on the backing steel plate and the square tube against the wall, and fix the square tube against the wall and the backing steel plate to the On the structural wall, the backing steel plate is sandwiched between the structural wall and the square tube against the wall, and the square tube against the wall is fixed to the structural wall to fix the integral triangular truss cantilever support frame on the structural wall;

2.4) Erect the I-beam on the triangular truss cantilever support frame fixed on the structural wall, and fix the I-beam on the triangular truss cantilever support frame on the structural wall through zigzag fastening gaskets.

It should be stated that the above specific implementation methods are only preferred embodiments of the present utility model and the applied technical principles. Those skilled in the art should understand that various modifications, equivalent replacements, changes and the like can also be made to the utility model. However, as long as these transformations do not deviate from the spirit of the utility model, they should all be within the protection scope of the utility model. In addition, some terms used in the specification and claims of this application are not limiting, but are only for convenience of description.

Claims (6)

1. An assembled triangular truss cantilever support frame system, characterized in that it includes a structural wall (12), a square tube against the wall (1) and a diagonally braced square tube (2), a top square tube (3), a back The lining steel plate (7) and the inner braced inclined square tube (4), the inner braced horizontal square tube (5), the inner braced vertical square tube (6) and the I-beam (14), the square tube against the wall (1), The diagonally braced square tube (2) and the top square tube (3) are welded end to end to form a triangular truss cantilevered support frame. The inner braced square tube (4), the inner braced horizontal square tube (5) and the inner braced vertical square tube (6) Fix it to the inside of the triangular truss cantilever support frame by welding, set the reserved bolt holes (8) on the wall-side square pipe (1), and pass through the reserved bolt holes (8) through the wall bolts (9) The triangular truss cantilever support frame is fixed on the structural wall (12), one side of the backing steel plate (7) is welded and fixed to the square tube against the wall (1), and the other side of the backing steel plate (7) is pressed to the On the structural wall (12), the I-beam (14) is vertically fixed to the top square pipe (3) through a zigzag fastening gasket (13). 2. The prefabricated triangular truss cantilever support frame system according to claim 1, characterized in that, the structural wall (12) is provided with pre-embedded threaded holes, the square pipe against the wall (1) and the backing steel plate ( 7) Set the reserved bolt holes (8), the reserved bolt holes (8) correspond to the positions of the pre-embedded threaded holes, and pass the wall-through bolts (9) through the reserved bolt holes and the pre-embedded threaded holes to close the wall The square pipe (1) and the backing steel plate (7) are fixed to the structural wall (12). 3. The prefabricated triangular truss cantilever support frame system according to claim 2, characterized in that, the wall-through bolts (9) are 32#C grade high-strength bolts, and each of the reserved bolt holes (8) The number is equal to the number of pre-embedded threaded holes is 2, and the positions correspond to each other. The two reserved bolt holes (8) are evenly spaced on the wall square pipe (1), and the two pre-embedded threaded holes Evenly spaced on the structural wall (12), the diameter of the two reserved bolt holes (8) is equal to the diameter of the two pre-embedded threaded holes of 40mm. 4. The prefabricated triangular truss cantilever support frame system according to claim 3, characterized in that four positioning bolt holes (10) with a diameter of 20 mm are set on the top square tube (3), and two of the zigzag-shaped The fastening gasket (13) is fixed to the top square tube (3) through two M14×120 bolts (11) through the positioning bolt holes (10), and the I-beam (14) is fastened to two zigzag tight between the solid spacers (13). 5. The prefabricated triangular truss cantilever support frame system according to claim 4, characterized in that, the square tube against the wall (1) and the square tube on the top (3) are selected with a minimum cross-section greater than 80×80mm, and a maximum cross-section smaller than 120×120mm, square steel pipe with wall thickness between 5 and 6mm, diagonally braced square pipe (2) choose square steel pipe with minimum cross-section greater than 60×60mm, maximum cross-section less than 80×80mm, and wall thickness between 3 and 4mm. The inner braced oblique square tube (4), the inner braced horizontal square tube (5) and the inner braced vertical square tube (6) choose square tubes with a minimum cross-section greater than 30×30mm, a maximum cross-section less than 50×50mm, and a wall thickness between 3 and 4mm. Steel Pipe. 6. The prefabricated triangular truss cantilever support frame system according to claim 5, characterized in that, the thickness of the backing steel plate (7) is between 5 mm and 7 mm.

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