Construction method of climbing frame truss type attachment support

Abstract

The present invention relates to the technical field of attached lifting scaffolds, and in particular to a method for constructing a truss-type attached support for a climbing frame. The purpose of the present invention is to solve the problem of super-high cantilever of a climbing frame. The technical solution of the present invention includes a steel beam, an adjusting basket, a column, a diagonal tie rod, a layer-stop device, an anti-tilt device and an anchor bolt. The anti-tilt device and the layer-stop device are connected to the cantilevered end of the steel beam. The column is vertically arranged in the middle of the steel beam. A connecting plate is provided on the upper part of the column. The two ends of the diagonal tie rod are respectively connected to the connecting plate and the cantilevered end of the steel beam. The two ends of the adjusting basket are respectively connected to the connecting plate and the fixed end of the steel beam. The anchor bolt fixes the fixed end of the steel beam to the floor slab. Each position of the climbing frame is equipped with four truss-type attached supports. Before lifting, the top truss-type attached support is installed first when the floor slab formwork is not removed. When the bottom of the frame is lifted close to the bottom truss-type attached support, the bottom truss-type attached support is removed.

Description

Technical Field

[0001] The invention relates to the technical field of attached lifting scaffolds, and in particular to a construction method for a climbing frame truss-type attached support. Background Art

[0002] Attached lifting scaffolding (climbing frame) is widely used in high-rise and super high-rise building construction. The climbing frame is fixed to the building structure through the attachment support and is lifted and lowered by its own equipment. The attachment support bears the load of the climbing frame and supports the anti-tilt and anti-fall functions. It is a key component of the climbing frame.

[0003] The specification stipulates that an attachment support should be set at each floor covered by the climbing frame, and the cantilever height of the frame shall not be greater than 2 / 5 of the frame height and shall not be greater than 6m. When the construction formwork adopts wooden formwork, the top formwork cannot be removed in time, making it inconvenient to install the top attachment support, and the cantilever height of the frame is greater than 6m.

[0004] In order to ensure that the cantilever height of the frame is not more than 6m, temporary wall ties are used in the construction site to prevent tilting during the use condition, but there is no regulation to ensure that the cantilever height of the frame is not more than 6m during the lifting condition. Especially for buildings with a floor height of more than 4m, the cantilever height of the frame is even greater.

[0005] The attachment support at the construction site is generally attached to the shear wall or structural beam using a standard wall-attached support, which can only be installed after the formwork is removed; for steel structural beams, standard wall-attached supports are not convenient to attach to structural beams. For cantilever beam-slab structures, cantilever beam diagonal-stayed attachment supports are generally used to attach to structural beams. When the floor height is greater than 4m, cantilever beam diagonal-stayed attachment supports are inconvenient to install and disassemble; cantilever beam attachment supports are also used to attach to floor slabs, but cantilever beam attachment supports are suitable for beam-slab structures with smaller cantilevers. When the cantilever is greater than 400mm, the cantilever beam attachment supports use a large amount of steel, which is not economical and also requires labor during construction.

[0006] In order to meet the construction progress of the main structure of the building, the existing construction method is generally to configure three attachment supports for each machine position, and adopt the method of "dismantle first and then install", that is, remove the bottom attachment support before lifting, lift the frame before installing the top attachment support, tie the temporary wall parts on the top layer after lifting, and install the top attachment support after removing the top template. The existing construction method has the potential safety hazard of the upper cantilever height and the lower cantilever height of the lifting frame being too high. Summary of the invention

[0007] In view of the above problems, the purpose of the present invention is to solve the problem of excessive height of the cantilever of the climbing frame (including usage and lifting conditions), thereby providing a climbing frame truss-type attachment support construction method with better safety, applicability and economy.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a climbing frame truss type attachment support includes a steel beam, an adjustment basket, a column, a diagonal tie rod, a floor stop device, an anti-tilt device and an anchor plate bolt, the anti-tilt device and the floor stop device are connected to the cantilevered end of the steel beam, the column is vertically arranged in the middle of the steel beam, the upper part of the column is provided with a connecting plate, the two ends of the diagonal tie rod are respectively connected to the connecting plate and the cantilevered end of the steel beam,

[0009] The adjusting flower basket includes a lead screw weldment and a nut weldment, two lead screw weldments are threadedly connected to two ends of the nut weldment, one lead screw weldment is fixedly connected to the connecting plate, and the other lead screw weldment is fixed to the fixed end of the steel beam.

[0010] The anchor bolts fix the fixed end of the steel beam to the floor slab;

[0011] The anchor bolt includes a screw rod, a washer and a nut, the screw rod includes an anchor plate and a screw rod, and a PVC tube is sleeved on the screw rod;

[0012] The construction steps are as follows:

[0013] S1 fixes the screw rod on the floor formwork and puts the PVC pipe on the screw rod;

[0014] After the S2 floor slab formwork concrete is poured, the truss structure assembled from steel beams, adjustable flower baskets, columns and diagonal rods is fixed with washers and nuts;

[0015] S3 installs the anti-tilt device and holds the channel steel of the guide rail, installs the floor stop device and tightens the load-bearing rod of the guide rail;

[0016] S4 removes the connecting bolts of the anti-tilt device, removes the nuts and washers, and drives out the screws from the floor slab, removes the truss-type attachment support, and moves it to the upper floor for use;

[0017] Each position of the S5 climbing frame is equipped with four truss-type attachment supports, three of which are installed in the working condition and one is used for the turnover of the lifting condition. The top-level truss-type attachment support is installed before lifting. When the bottom of the frame is lifted close to the bottom-level truss-type attachment support, the bottom-level truss-type attachment support is removed.

[0018] In the above technical solution, the steel beam includes a body, an ear plate, an upper connecting angle steel and a lower connecting angle steel, and bolt holes are drilled on the ear plate, the upper connecting angle steel and the lower connecting angle steel.

[0019] In the above technical solution, the layer-stopping device comprises an upper layer-stopping member, a lower layer-stopping member and a tension spring, wherein the upper layer-stopping member and the lower layer-stopping member are threadedly connected, one end of the tension spring is mounted on the lower layer-stopping member, and the other end is mounted on the cantilevered end of the steel beam.

[0020] In the above technical solution, the upper stop layer member includes a limit rod, a V-shaped support block and a T-shaped lead screw, and the T-shaped lead screw penetrates into the V-shaped support block and can rotate freely.

[0021] In the above technical solution, the lead screw weldment includes a lead screw connecting plate and a lead screw which are integrated with each other, a bolt hole is drilled on the lead screw connecting plate, and the nut weldment includes a left-handed nut, a connecting rod and a right-handed nut which are integrated with each other.

[0022] In the above technical solution, the diagonal tie rod is a square tube with bolt holes drilled at both ends.

[0023] In the above technical solution, the anti-tilt device includes a guide wheel seat, and the guide wheel seat is equipped with a guide wheel.

[0024] To sum up, the technical solution of the present invention has the following beneficial effects compared with traditional technical means: the climbing frame truss-type attachment support of the present invention is fixed to the building floor slab by anchor bolts, and can be installed even if the floor slab formwork is not removed during construction, ensuring that the cantilever height of the climbing frame on the frame is less than 6m under the use condition and the lifting condition, solving the safety hazard problem that has long existed at the construction site due to the inability to install the top-level attachment support. Installing a truss-type attachment support on the top of the climbing frame has better stability than installing only temporary wall connection parts under the use condition.

[0025] The steel beam, the adjustable flower basket, the column and the diagonal tie rod form a truss structure, which can directly bear the load, and the steel beam does not need to be installed with a counter-tie rod for unloading; the adjustable flower basket and the diagonal tie rod are rigid rods, which can withstand both the tension of the use condition and the pressure of the lifting condition. Especially for buildings with a floor height greater than 4m, the truss-type attachment support is more convenient to install and disassemble than the cantilever beam diagonal attachment support, saving labor; the anchor plate bolts can be reused, saving materials compared to embedded parts.

[0026] The climbing frame truss-type attachment support is attached to the floor slab and is suitable for beam-slab structures with different cantilever lengths, especially structures with uneven planes. There is no need to wait for the formwork to be removed before installing the attachment support to meet the cantilever height requirements of the frame, which is conducive to saving construction time.

[0027] The stop-layer device uses a tension spring to ensure that the upper part of the stop-layer device always presses against the guide rail load-bearing rod, and can also play an anti-falling role during the climbing frame lifting condition; the anti-tilt device is connected to the steel beam with bolts, which is convenient for the removal of the attached support and turnover installation.

[0028] Each position of the climbing frame is equipped with four truss-type attachment supports, and the construction process adopts the "install first and then dismantle" method, that is, the top-level truss-type attachment support is installed first and then lifted. When the frame structure is almost in place, the bottom-level truss-type attachment support is removed. This ensures that there is an attachment support at each floor covered by the frame, solving the problem of excessive cantilever height of the frame during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The foregoing and other objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0030] Figure 1 It is the installation schematic diagram of the present invention;

[0031] Figure 2 It is a top view schematic diagram of the present invention;

[0032] Figure 3 It is a schematic diagram of the main view of the middle column of the present invention;

[0033] Figure 4 It is a schematic diagram of the main view of the adjustable flower basket in the present invention;

[0034] Figure 5 It is a three-dimensional schematic diagram of the layer stopping device in the present invention;

[0035] Figure 6 It is a three-dimensional schematic diagram of the upper stop layer member in the present invention;

[0036] Figure 7 It is a front view schematic diagram of the anti-tilt device in the present invention;

[0037] Figure 8 It is a schematic diagram of the main view of the steel beam in the present invention;

[0038] Fig. 9 It is a schematic front view of the anchor plate bolt in the present invention;

[0039] Fig.10 It is a schematic diagram of the lifting state of the present invention;

[0040] The numbers are as follows: steel beam 1; main body 11; ear plate 12; upper connecting angle steel 13; lower connecting angle steel 14; adjusting basket 2; screw weldment 21; screw connecting plate 211; screw 212; nut weldment 22; left-handed nut 221; connecting rod 222; right-handed nut 223; column 3; connecting plate 31; diagonal rod 4; stop device 5; upper stop member 51; limit rod 511; V-shaped support block 512; T-shaped screw 513; lower stop member 52; tension spring 53; anti-tilt device 6; guide wheel seat 61; guide wheel 62; anchor plate bolt 7; screw 71; anchor plate 711; screw 712; gasket 72; nut 73; floor formwork 8; guide rail 9; top truss type attachment support 10; bottom truss type attachment support 20; frame body 30. DETAILED DESCRIPTION

[0041] The present invention will be further described with reference to the following drawings:

[0042] like Figure 1 , 2As shown in Figures 3 and 10, a climbing frame truss-type attachment support includes a steel beam 1, an adjusting flower basket 2, a column 3, a diagonal brace 4, a stop device 5, an anti-tilt device 6 and an anchor plate bolt 7. The anti-tilt device 6 and the stop device 5 are connected to the cantilevered end of the steel beam 1. The column 3 is vertically arranged in the middle of the steel beam 1. A connecting plate 31 is provided on the upper part of the column 3. Both ends of the diagonal brace 4 are respectively connected to the connecting plate 31 and the cantilevered end of the steel beam 1. Screw holes are opened on both sides of the connecting plate 31. The two screw holes are respectively used to connect with the adjusting flower basket 2 and the diagonal brace 4.

[0043] like Figure 3 , 4 As shown, the adjusting flower basket 2 includes a lead screw weldment 21 and a nut weldment 22, the two lead screw weldments 21 are threadedly connected to the two ends of the nut weldment 22, and one lead screw weldment 21 is fixedly connected to the connecting plate 31, and the other lead screw weldment 21 is fixed to the fixed end of the steel beam 1.

[0044] like Figure 7 As shown, the anti-tilt device 6 includes a guide wheel seat 61 on which a guide wheel 62 is mounted.

[0045] like Figure 5 As shown, the layer-stopping device 5 comprises an upper layer-stopping member 51, a lower layer-stopping member 52 and a tension spring 53, and the upper layer-stopping member 51 and the lower layer-stopping member 52 are threadedly connected.

[0046] like Figure 1 As shown, one end of the tension spring 53 is mounted on the lower stop member 52, and the other end is mounted on the upper connecting angle steel 13 at the cantilevered end of the steel beam 1.

[0047] like Figure 5 , 6 As shown, the upper stop member 51 includes a limiting rod 511, a V-shaped support block 512 and a T-shaped lead screw 513. The T-shaped lead screw 513 penetrates into the V-shaped support block 512 and can rotate freely.

[0048] like Figure 8 As shown, the steel beam 1 includes a body 11 , a lug plate 12 , an upper connecting angle steel 13 and a lower connecting angle steel 14 .

[0049] like Figure 4 As shown, the lead screw weldment 21 includes a lead screw connecting plate 211 and a lead screw 212 which are integrated with each other, and bolt holes are drilled on the lead screw connecting plate 211. The nut weldment 22 includes a left-handed nut 221, a connecting rod 222 and a right-handed nut 223 which are integrated with each other.

[0050] like Figure 1 As shown, the diagonal tie rod 4 is a square tube with bolt holes drilled at both ends.

[0051] like Fig. 9As shown, the anchor bolt 7 includes a screw rod 71, a gasket 72 and a nut 73. The screw rod 71 includes an anchor plate 711 and a screw rod 712. A PVC tube 713 is sleeved on the screw rod 712. After the floor formwork is removed, the screw rod 71 can be driven out from the floor for turnover and material saving.

[0052] A method for constructing a truss-type attachment support for a climbing frame, wherein each position of the climbing frame is equipped with four truss-type attachment supports, three of which are installed in the use condition and four are installed in the lifting condition; before lifting, the top truss-type attachment support 10 is installed first, and when the bottom of the frame 30 is lifted close to the bottom truss-type attachment support 20, the bottom truss-type attachment support 20 is removed. The construction steps are as follows:

[0053] S1 fixes the screw rod 71 on the floor formwork 8, and puts a PVC pipe on the screw rod 712;

[0054] After the S2 floor slab formwork concrete is poured, the truss structure assembled by the steel beam 1, the adjustment basket 2, the column 3 and the diagonal rod 4 is fixed with the gasket 72 and the nut 73;

[0055] S3 installs the anti-tilt device 6 and holds the channel steel of the guide rail 9, installs the stop layer device 5 and tightens the load-bearing rod of the guide rail 9;

[0056] S4: Remove the connecting bolts of the anti-tilt device 6, remove the nuts 73 and the washers 72, and drive out the screws 71 from the floor slab, remove the truss-type attachment support, and transfer it to the upper floor for use;

[0057] Each position of the S5 climbing frame is equipped with four truss-type attachment supports, three of which are installed in the working condition and one is used for the turnover of the lifting condition. The top-level truss-type attachment support 10 is installed before lifting. When the bottom of the frame 30 is lifted close to the bottom-level truss-type attachment support 20, the bottom-level truss-type attachment support 20 is removed.

[0058] During installation, the lower end of the column 3 is connected to the middle part of the steel beam 1 with bolts, the two ends of the inclined rod 4 are respectively connected to the cantilevered end of the steel beam 1 and the upper end of the column 3 with bolts, the two ends of the adjusting basket 2 are respectively connected to the fixed end of the steel beam 1 and the upper end of the column 3 with bolts, the adjusting basket 2 is tightened to make the assembly inactive to form a truss structure, the stop device 5 is connected to the ear plate 12 with bolts, the upper end of the tension spring 53 is connected to the small nut of the lower stop member 52, and the lower end is connected to the upper connecting angle steel 13, the anti-tilt device 6 is connected to the upper connecting angle steel 13 and the lower connecting angle steel 14 with bolts, screws 71 are pre-embedded in the floor slab of the building, and the truss structure assembly is fixed to the anchor plate bolts 7.

[0059] During disassembly, remove the connecting bolts between the anti-tilt device 6 and the upper connecting angle steel 13 and the lower connecting angle steel 14, remove the nuts 73 and the washers 72, and the truss-type attachment support can be transferred to the upper floor for installation and use. After the floor formwork is removed, the screw 71 can be driven out of the floor for transfer.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A climbing frame truss type attachment support construction method, characterized in that: The climbing frame truss-type attachment support comprises a steel beam (1), an adjustment basket (2), a column (3), a diagonal brace (4), a stop-layer device (5), an anti-tilt device (6) and an anchor bolt (7), wherein the anti-tilt device (6) and the stop-layer device (5) are connected to the cantilevered end of the steel beam (1), the column (3) is vertically arranged in the middle of the steel beam (1), a connecting plate (31) is provided on the upper part of the column (3), and the two ends of the diagonal brace (4) are respectively connected to the connecting plate (31) and the cantilevered end of the steel beam (1). The adjusting flower basket (2) comprises a lead screw weldment (21) and a nut weldment (22), wherein the two lead screw weldments (21) are threadedly connected to the two ends of the nut weldment (22), and one of the lead screw weldments (21) is fixedly connected to the connecting plate (31), and the other lead screw weldment (21) is fixed to the fixed end of the steel beam (1). The anchor bolts (7) fix the fixed end of the steel beam (1) to the floor slab; The anchor plate bolt (7) comprises a screw rod (71), a washer (72) and a nut (73); the screw rod (71) comprises an anchor plate (711) and a screw rod (712); a PVC tube is sleeved on the screw rod (712); The construction steps are as follows: S1 fixes the screw rod (71) on the floor formwork (8) and covers the screw rod (712) with a PVC pipe; After the concrete is poured on the S2 floor slab formwork, the truss structure assembled from the steel beam (1), the adjustment basket (2), the column (3) and the diagonal tie rod (4) is fixed with a gasket (72) and a nut (73); S3 installs the anti-tilt device (6) and holds the channel steel of the guide rail (9), installs the stop layer device (5) and tightens the load-bearing rod of the guide rail (9); S4 removes the connecting bolts of the anti-tilt device (6), removes the nuts (73) and washers (72), drives out the screws (71) from the floor slab, removes the truss-type attachment support, and moves it to the upper floor for use; Each position of the S5 climbing frame is equipped with four truss-type attachment supports, three of which are installed in the working condition and one is used for the turnover of the lifting condition. Before lifting, the top truss-type attachment support (10) is installed first, and when the bottom of the frame (30) is lifted and close to the bottom truss-type attachment support (20), the bottom truss-type attachment support (20) is removed.

2. The climbing frame truss type attachment support construction method according to claim 1 is characterized in that: The steel beam (1) comprises a body (11), a lug plate (12), an upper connecting angle steel (13) and a lower connecting angle steel (14); bolt holes are drilled on the lug plate (12), the upper connecting angle steel (13) and the lower connecting angle steel (14).

3. The climbing frame truss type attachment support construction method according to claim 1 is characterized in that: The layer-stopping device (5) comprises an upper layer-stopping member (51), a lower layer-stopping member (52) and a tension spring (53); the upper layer-stopping member (51) and the lower layer-stopping member (52) are threadedly connected; one end of the tension spring (53) is mounted on the lower layer-stopping member (52), and the other end is mounted on the cantilevered end of the steel beam (1).

4. The climbing frame truss type attachment support construction method according to claim 3 is characterized in that: The upper stop member (51) comprises a limit rod (511), a V-shaped support block (512), and a T-shaped lead screw (513); the T-shaped lead screw (513) penetrates the V-shaped support block (512) and can rotate freely.

5. The climbing frame truss type attachment support construction method according to claim 1 is characterized in that: The lead screw weldment (21) comprises a lead screw connecting plate (211) and a lead screw (212) which are integrated with each other, a bolt hole is drilled on the lead screw connecting plate (211), and the nut weldment (22) comprises a left-handed nut (221), a connecting rod (222), and a right-handed nut (223) which are integrated with each other.

6. The climbing frame truss type attachment support construction method according to claim 1 is characterized in that: The inclined tie rod (4) is a square tube with bolt holes drilled at both ends.

7. The climbing frame truss type attachment support construction method according to claim 1 is characterized in that: The anti-tilt device (6) comprises a guide wheel seat (61), and a guide wheel (62) is mounted on the guide wheel seat (61).

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