Construction platform and construction method of large-span irregular modeling daylighting roof

Abstract

The invention discloses a construction platform and a construction method of a large-span irregular modeling daylighting roof, and belongs to the technical field of building construction. The construction platform comprises a portal frame arranged on a roof floor, a sliding unit and a lifting frame. The portal frame is arranged on one side of the spliced to-be-mounted steel beam and used for hoisting the steel beam, and the steel beam and the sliding unit are fixedly connected conveniently. The lifting frame is arranged on the side where the steel beam needs to be installed and used for lifting the steel beam and facilitating installation of the steel beam and the steel column. The sliding units are arranged at the two ends of a to-be-installed steel beam correspondingly. Each sliding unit comprises a distribution beam and a transfer trolley. And universal wheels facilitating movement are arranged at the bottom of the transfer trolley. One end of the distribution beam is detachably connected with the transfer trolley, the other end of the distribution beam is provided with a penetrating bolt used for being connected with the steel beam, and the end, connected with the steel beam, of the distribution beam is telescopic so as to adapt to daylighting roof holes with different widths.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a construction platform and a construction method for a large-span irregular-shaped daylighting roof. Background Technique

[0002] In the construction of large commercial complexes, daylighting roofs are mostly used at the top to introduce natural light and improve the spatial comfort. The daylighting roof usually uses steel structure as the main body, with mostly irregular shapes, large spans of steel beams, and is mostly located in the center of the building. Therefore, the installation of the daylighting roof often becomes a difficult point in construction, mainly because the daylighting roof is located in the center of the building, and it is difficult for traditional tower cranes and large truck cranes to directly hoist it into place.

[0003] Conventional construction schemes such as the support frame method, the sliding method, and the lifting method all have certain limitations. The support frame method is to set up support frames under the daylighting roof to hoist the steel beams in sections. The support frame method requires a large amount of lower space and affects the construction of other specialties; the sliding method and the lifting method are usually for rectangular daylighting roofs. After the steel beam assembly is completed, hydraulic equipment is used for the sliding or lifting of the structure into place, but the applicability to irregular-shaped daylighting roofs is relatively low. Therefore, there is an urgent need to provide a construction platform for large-span irregular-shaped daylighting roofs. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and provide a construction platform and a construction method for a large-span irregular-shaped daylighting roof.

[0005] The specific technical solutions adopted by the present invention are as follows:

[0006] In the first aspect, the present invention provides a construction platform for a large-span irregular-shaped daylighting roof, including a gantry, a sliding unit, and a lifting frame arranged on the roof floor; the gantry is arranged on one side of the steel beam to be assembled and installed, and is used for hoisting the steel beam to facilitate the fixed connection between the steel beam and the sliding unit; the lifting frame is arranged on one side of the steel beam to be installed, and is used for hoisting the steel beam to facilitate the installation of the steel beam and the steel column;

[0007] Two groups of sliding units are provided, which are respectively arranged at both ends of the steel beam to be installed; each group of sliding units includes a distribution beam and a transfer vehicle; one end of the distribution beam is detachably connected to the transfer vehicle, and the other end is provided with a through bolt for connecting with the steel beam, and the end of the distribution beam connected to the steel beam is telescopic to adapt to daylighting roof openings of different widths; a counterweight is arranged on the transfer vehicle, and universal wheels are arranged at the bottom of the transfer vehicle to facilitate movement.

[0008] Preferably, the distribution beam includes a telescopic rod, a fixed rod, and a hydraulic device; the telescopic rod is made of H-shaped steel; the fixed rod is sleeved outside the telescopic rod, and one end of the fixed rod is open; sliding grooves matching the upper flange and the lower flange of the telescopic rod are arranged on the top surface and the bottom surface inside the fixed rod, so that the telescopic rod and the fixed rod form a sliding pair; the hydraulic device is arranged at the end of the fixed rod far from the opening to drive the telescopic rod to expand and contract inside the fixed rod.

[0009] Further, a stiffening plate serving as the force-receiving end of the hydraulic device is arranged at the end of the telescopic rod far from the opening of the fixed rod.

[0010] Further, the fixed rod of the distribution beam is detachably connected to the top of the transfer vehicle through a plurality of bolts.

[0011] Further, a window for facilitating the maintenance and operation of the hydraulic device is opened at the end of the fixed rod far from the opening.

[0012] Preferably, the gantry includes a top plate and four columns; a first connecting plate is arranged at the bottom of each column, and a plurality of bolt holes for connecting with anchor bolts are opened on the first connecting plate; a first hanging point for hanging a lifting device is arranged on the top plate.

[0013] Preferably, the lifting frame includes a top plate and columns; a second connecting plate is arranged at the bottom of each column, and a plurality of bolt holes for connecting with anchor bolts are opened on the second connecting plate; a second hanging point for hanging a lifting device is arranged on the top plate; a limiting device for clamping on the counter beam of the daylighting roof is further arranged on the columns.

[0014] Further, the lifting device adopts a chain block or a winch.

[0015] Preferably, a plurality of assembly jigs for assembling steel beams are arranged at intervals below the gantry; the counterweight adopts a weight water tank.

[0016] In a second aspect, the present invention provides a sliding construction method for a large-span irregular-shaped daylighting roof, and the specific steps are as follows:

[0017] S1: Assemble the steel beam to be installed on the assembly jig; install a gantry for hoisting the steel beam near the position of the assembly jig;

[0018] S2: After the steel beam is assembled, push two groups of sliding units to both ends of the steel beam; the sliding unit is a movable support device, including a distribution beam for connecting the steel beam and a transfer vehicle for moving; the telescopic rod and the fixed rod in the distribution beam form a sliding pair, and the length of the telescopic rod extending out of the fixed rod is adjusted as needed to adapt to different widths of the daylighting roof opening;

[0019] S3: Use the hoisting device hung on the gantry to hoist the steel beam; both ends of the steel beam are fixed to the telescopic rods of the sliding units by means of through bolts respectively;

[0020] S4: According to the width of the daylighting roof opening, adjust the length of the telescopic rod extending from the fixed rod in the distribution beam; transport the steel beam through the sliding units at both ends to ensure that the sliding units can pass through different widths of the daylighting roof opening;

[0021] S5: When the steel beam is transported to the installation position, set up a lifting frame at this installation position; use the hoisting device hung on the lifting frame to hoist the steel beam, and release the connection between both ends of the steel beam and the telescopic rods in the sliding units;

[0022] S6: Install steel columns at the designed positions; use the lifting frame to lift the steel beam; after the connection between the steel beam and the steel columns is completed, remove this lifting frame;

[0023] S7: Install secondary beams and connecting beams;

[0024] S8: Repeat the above steps until the installation of the long-span steel beams and secondary beams of the daylighting roof is completed.

[0025] The present invention has the following beneficial effects compared with the prior art:

[0026] The construction method provided by the present invention uses the gantry to hoist the assembled steel beam, breaking through the technical bottleneck of the lifting weight limit of the traditional tower crane, and effectively solving the problem of difficult installation of the steel beam caused by the lifting weight limit of the tower crane. Secondly, through the coordinated operation of the transfer vehicle and the lifting frame, the transportation of the steel beam from the assembly site to the installation position is realized, avoiding the construction period delay caused by multiple transfers in traditional construction. In addition, the telescopic rod and the fixed rod of the distribution beam in the transfer vehicle form a sliding pair, and the length of the telescopic rod extending from the fixed rod can be adjusted as needed to adapt to different widths of the daylighting roof opening. The construction equipment adopted by the present invention has a simple structure and low cost, replacing the traditional hydraulic lifting equipment and reducing the construction cost required for on-site steel beam installation. Description of the Drawings

[0027] Figure 1 It is a partial schematic view of the construction platform provided in this embodiment;

[0028] Figure 2 It is another partial schematic view of the construction platform provided in this embodiment;

[0029] Figure 3 It is a schematic view of the installation of the roof floor slab and the inverted beam in this embodiment;

[0030] Figure 4 It is a schematic view of the gantry provided in this embodiment;

[0031] Figure 5Schematic diagram of the installation of the gantry and the lifting device provided in this embodiment;

[0032] Figure 6 Schematic diagram of the sliding unit provided in this embodiment;

[0033] Figure 7 Schematic diagram of the disassembly of the distribution beam provided in this embodiment;

[0034] Figure 8 Schematic diagram of the fixed rod provided in this embodiment;

[0035] Figure 9 Schematic diagram of the lifting frame provided in this embodiment;

[0036] Figure 10 Schematic diagram of the installation of the sliding unit in the construction method;

[0037] Figure 11 Schematic diagram of the transportation of the steel beam in the construction method;

[0038] Figure 12 Schematic diagram of the installation of the lifting frame in the construction method;

[0039] Figure 13 Schematic diagram of the lifting of the steel beam by the lifting frame in the construction method;

[0040] Figure 14 Schematic diagram of the connection between the steel beam and the steel column in the construction method;

[0041] Figure 15 Schematic diagram of the installation of the secondary beam and the connecting beam in the construction method;

[0042] Figure 16 Schematic diagram of the completion of the steel structure of the daylighting roof in the construction method;

[0043] In the figure: gantry 1, first connecting plate 1-1, first hanging point 1-2, sliding unit 2, universal wheel 2-1, distribution beam 2-2, telescopic rod 2-21, fixed rod 2-22, hydraulic equipment 2-23, counterweight 2-3, transfer vehicle 2-4, lifting frame 3, limiting device 3-1, second connecting plate 3-2, second hanging point 3-3, steel beam 4, steel column 5, assembly jig 6, lifting device 7, counter beam 8, roof floor 9. Detailed implementation manners

[0044] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The technical features in each embodiment of the present invention can be combined accordingly without conflict.

[0045] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for the purpose of distinguishing descriptions and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0046] As a preferred embodiment of the specific implementation of the present invention, the present invention provides a construction platform for a large-span irregular-shaped daylighting roof. As Figure 3 shown, the counter beam 8 is a concrete beam higher than the roof floor slab 9 and is arranged in a circle around the daylighting roof opening. The construction platform provided by the present invention is used to build a steel structure for supporting the daylighting roof on the counter beam 8.

[0047] As Figure 1 and Figure 2 shown, the construction platform provided by the present invention includes a splicing jig 6, a gantry 1, a sliding unit 2, and a lifting frame 3 arranged on the roof floor slab 9. The splicing jigs 6 are arranged at intervals and serve as a platform for splicing steel beams 4. The splicing jigs 6 can be made of H-shaped steel, I-shaped steel, or other steel sections. The gantry 1 is arranged on one side of the steel beam 4 to be installed for lifting the steel beam 4 to facilitate the fixed connection between the steel beam 4 and the sliding unit 2. The lifting frame 3 is arranged on one side of the steel beam 4 to be installed for lifting the steel beam 4 to facilitate the installation of the steel beam 4 and the steel column.

[0048] The gantry 1 provided in this embodiment is as Figure 4 shown. The gantry 1 includes a top plate and four columns. The top plate and the columns are both welded by square steel pipes and are integrally in the shape of a door. At the bottom of each column of the gantry 1, a first connecting plate 1-1 is welded, and a plurality of bolt holes for connecting with the anchor bolts on the roof floor slab 9 are opened on the first connecting plate 1-1. The first connecting plate 1-1 fixes the gantry 1 and the roof floor slab 9 through the anchor bolts. On the top plate of the gantry 1, there is a first hanging point 1-2 for hanging a lifting device 7, as Figure 5 shown.

[0049] In the present invention, two groups of sliding units 2 are provided and are respectively arranged at both ends of the steel beam 4 to be installed. Each group of sliding units 2 is as Figure 6As shown in the figure, it includes a universal wheel 2-1, a distribution beam 2-2, a counterweight 2-3 and a transfer vehicle 2-4. One end of the distribution beam 2-2 is detachably connected to the transfer vehicle 2-4, and the other end is provided with a through bolt for connecting to the steel beam 4. And one end of the distribution beam 2-2 connected to the steel beam 4 is telescopic to adapt to the lighting roof openings of different widths. Specifically, as Figure 7 shown, the distribution beam 2-2 provided in this embodiment includes a telescopic rod 2-21, a fixed rod 2-22 and a hydraulic device 2-23. The telescopic rod 2-21 is made of H-shaped steel. A plurality of bolt holes for setting through bolts are opened at one end of the lower flange of the H-shaped steel, and a stiffening plate serving as the stress end of the hydraulic device 2-23 is fixed at the bottom of the other end. The fixed rod 2-22 is a rectangular tube with one end open, and the fixed rod 2-22 is sleeved outside the telescopic rod 2-21. As Figure 8 shown, sliding grooves matching the upper flange and the lower flange of the telescopic rod 2-21 are provided on both the inner top surface and the inner bottom surface of the fixed rod 2-22 as the telescopic track of the telescopic rod 2-21. A sliding pair is formed between the telescopic rod 2-21 and the fixed rod 2-22. The hydraulic device 2-23 is arranged at one end of the fixed rod 2-22 far from the opening to drive the telescopic rod 2-21 to telescopically move in the fixed rod 2-22. Since the hydraulic device 2-23 is arranged inside the fixed rod 2-22, in order to facilitate the maintenance and operation of the hydraulic device 2-23, a window is also opened at the corresponding position of the fixed rod 2-22.

[0050] The transfer vehicle 2-4 provided in this embodiment includes a main frame and a ballast platform. Universal wheels 2-1 for facilitating movement are arranged at the bottom of the main frame of the transfer vehicle 2-4. One end of the fixed rod 2-22 of the distribution beam 2-2 is detachably connected to the top of the main frame of the transfer vehicle 2-4 through a plurality of bolts. A ballast platform for placing the counterweight 2-3 is arranged on the outer side of the main frame of the transfer vehicle 2-4, that is, on the side far from the connecting steel beam 4. A support rod can also be vertically arranged between the ballast platform and the fixed rod 2-22 of the distribution beam 2-2. In this embodiment, the counterweight 2-3 is a ballast water tank filled with water. Those skilled in the art can also set different counterweight blocks according to the weight of the steel beam to be transported under actual working conditions to ensure the stable transportation of the transfer vehicle.

[0051] The lifting frame 3 provided in this embodiment is as Figure 9As shown in the figure. The lifting frame 3 includes a top plate and columns. Both the top plate and columns are welded by square steel pipes and are in an inverted L shape as a whole. Diagonal braces can be welded between the top plate and columns to improve the stability of the lifting frame 3. At the bottom of each column of the lifting frame 3, a second connecting plate 3-2 is provided, and a number of bolt holes for connecting with anchor bolts are opened on the second connecting plate 3-2. The second connecting plate 3-2 fixedly connects the lifting frame 3 and the roof floor slab 9 through the anchor bolts. A limiting device 3-1 is also provided on the column of the lifting frame 3. The limiting device 3-1 is fixed at the lower part of the column by welding, and its width is the same as the thickness of the counter beam 8 of the daylighting roof. During the construction process, the lifting frame 3 is clamped on the counter beam 8 to reduce the risk of the lifting frame tipping over during the process of lifting the steel beam. A second hanging point 3-3 for hanging the lifting device 7 is provided on the top plate of the lifting frame 3. In this embodiment, the lifting device 7 uses a chain block, and those skilled in the art can select a suitable lifting device according to the actual weight of the steel beam to be hoisted, such as a winch, etc.

[0052] This embodiment also provides a slip construction method for a large-span irregular-shaped daylighting roof, and the specific steps are as follows:

[0053] Step 1: Installation of the assembly jig and gantry

[0054] On the roof floor slab 9 under construction, first determine the position of the assembly jig 6. On the assembly jig 6, assemble the steel beam 4 to be installed to ensure the assembly accuracy and stability. Install the gantry 1 for hoisting the steel beam 4 near the position where the assembly jig 6 is set.

[0055] Step 2: Installation of the slip units

[0056] As Figure 10 shown, after the steel beam 4 is assembled, push two groups of slip units 2 to both ends of the steel beam 4. The slip unit 2 is a movable support device, including a distribution beam 2-2 for connecting the steel beam 4 and a transfer vehicle 2-4 for moving. The telescopic rod 2-21 and the fixed rod 2-22 in the distribution beam 2-2 form a sliding pair, and the length of the telescopic rod 2-21 extending out of the fixed rod 2-22 is adjusted according to needs to adapt to different widths of the daylighting roof openings.

[0057] Step 3: Hoisting and fixing of the steel beam

[0058] Use the lifting device 7 hung on the gantry 1 to lift the assembled steel beam 4. At both ends of the steel beam 4, fix the steel beam 4 and the telescopic rod 2-21 of the slip unit 2 respectively by through bolts to ensure the firm connection between the steel beam 4 and the slip unit 2.

[0059] Step 4: Adjustment and transportation of the slip units

[0060] As Figure 11As shown, according to the width of the skylight top opening, the length of the telescopic rod 2-21 in the distribution beam 2-2 extending out of the fixed rod 2-22 is adjusted. The steel beam 4 is transported by the sliding units 2 at both ends to ensure that the sliding units 2 can pass through different widths of the skylight top opening.

[0061] Step 5: Lifting and connecting steel beams

[0062] like Figure 12 As shown, after the steel beam 4 is transported to the installation position, a lifting frame 3 is set at the installation position. The steel beam 4 is lifted by a lifting device 7 hung on the lifting frame 3 to release the connection between the two ends of the steel beam 4 and the telescopic rod 2-21 in the sliding unit 2. Figure 13 shown.

[0063] Step 6: Connection of steel columns and steel beams

[0064] like Figure 14 As shown, the steel column is installed at the designed position. The steel beam 4 is lifted to the designed height by the lifting frame 3 and connected with the steel column. After the connection between the steel beam 4 and the steel column is completed, the lifting frame 3 is removed.

[0065] Step 7: After the main steel beam is installed, install the secondary beam and connecting beam. Figure 15 shown.

[0066] Step 8: Repeat the above steps until the large-span steel beam and secondary beam of the skylight are installed. Figure 16 shown.

[0067] The above embodiment is only a preferred solution of the present invention, but it is not intended to limit the present invention. A person skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A construction platform for a large-span irregular-shaped skylight, characterized in that: The invention comprises a gantry (1), a sliding unit (2) and a lifting frame (3) arranged on a roof floor (9); the gantry (1) is arranged on the side where the steel beam (4) is to be installed before assembly, and is used to lift the steel beam (4), so as to facilitate the fixed connection between the steel beam (4) and the sliding unit (2); the lifting frame (3) is arranged on the side where the steel beam (4) is to be installed, and is used to lift the steel beam (4), so as to facilitate the installation of the steel beam (4) and the steel column; The sliding units (2) are arranged in two groups, which are arranged at the two ends of the steel beam (4) to be installed respectively; each group of sliding units (2) comprises a distribution beam (2-2) and a transfer vehicle (2-4); one end of the distribution beam (2-2) is detachably connected to the transfer vehicle (2-4), and the other end is provided with a through bolt for connecting with the steel beam (4), and the end of the distribution beam (2-2) connected to the steel beam (4) is retractable to adapt to skylight openings of different widths; a counterweight (2-3) is arranged on the transfer vehicle (2-4), and a universal wheel (2-1) is arranged at the bottom of the transfer vehicle (2-4) for easy movement.

2. The construction platform of the large-span irregular-shaped skylight according to claim 1 is characterized in that: The distribution beam (2-2) comprises a telescopic rod (2-21), a fixed rod (2-22) and a hydraulic device (2-23); the telescopic rod (2-21) is made of H-shaped steel; the fixed rod (2-22) is sleeved outside the telescopic rod (2-21), and one end of the fixed rod (2-22) is open; the inner top surface and the bottom surface of the fixed rod (2-22) are both provided with sliding grooves matching the upper flange and the lower flange of the telescopic rod (2-21), so that the telescopic rod (2-21) and the fixed rod (2-22) form a sliding pair; the hydraulic device (2-23) is arranged at one end of the fixed rod (2-22) away from the opening, and drives the telescopic rod (2-21) to extend and retract inside the fixed rod (2-22).

3. The construction platform of the large-span irregular-shaped skylight according to claim 2 is characterized in that: One end of the telescopic rod (2-21) away from the opening of the fixed rod (2-22) is provided as a stiffening plate at the force-bearing end of the hydraulic equipment (2-23).

4. The construction platform of the large-span irregular-shaped skylight according to claim 2 is characterized in that: The fixing rod (2-22) of the distribution beam (2-2) is detachably connected to the top of the transfer vehicle (2-4) via a plurality of bolts.

5. The construction platform of the large-span irregular-shaped skylight according to claim 2 is characterized in that: A window is provided at one end of the fixing rod (2-22) away from the opening to facilitate the inspection and operation of the hydraulic equipment (2-23).

6. The construction platform of the large-span irregular-shaped skylight according to claim 1 is characterized in that: The gantry (1) comprises a top plate and four columns; a first connecting plate (1-1) is provided at the bottom of each column, and a plurality of bolt holes for connecting to ground anchor bolts are provided on the first connecting plate (1-1); and a first hanging point (1-2) for hanging a lifting device (7) is provided on the top plate.

7. The construction platform of the large-span irregular-shaped skylight according to claim 1 is characterized in that: The lifting frame (3) comprises a top plate and columns; a second connecting plate (3-2) is arranged at the bottom of each column, and a plurality of bolt holes for connecting with ground anchor bolts are provided on the second connecting plate (3-2); a second hanging point (3-3) for hanging a lifting device (7) is provided on the top plate; and a limiting device (3-1) for clamping on the reverse beam (8) of the skylight is also provided on the column.

8. The construction platform of the large-span irregular-shaped skylight according to claim 6 or 7, characterized in that: The lifting device (7) is a hand chain hoist or a winch.

9. The construction platform of the large-span irregular-shaped skylight according to claim 1 is characterized in that: A plurality of assembly frames (6) for assembling steel beams (4) are arranged at intervals below the gantry (1); and the counterweight (2-3) is a ballast water tank.

10. A sliding construction method for a large-span irregular-shaped skylight, characterized in that: The specific steps are as follows: S1: assembling the steel beam (4) to be installed on the assembly frame (6); installing a gantry (1) for hoisting the steel beam (4) near the assembly frame (6); S2: After the steel beam (4) is assembled, two sets of sliding units (2) are pushed to the two ends of the steel beam (4); the sliding unit (2) is a movable supporting device, comprising a distribution beam (2-2) for connecting the steel beam (4) and a transfer vehicle (2-4) for movement; the telescopic rod (2-21) and the fixed rod (2-22) in the distribution beam (2-2) constitute a sliding pair, and the length of the telescopic rod (2-21) extending out of the fixed rod (2-22) is adjusted as needed to adapt to different widths of the skylight opening; S3: The steel beam (4) is hoisted by using a lifting device (7) mounted on the gantry (1); both ends of the steel beam (4) are fixed by using through bolts and telescopic rods (2-21) of the sliding unit (2); S4: According to the width of the skylight opening, the length of the telescopic rod (2-21) in the distribution beam (2-2) extending out of the fixed rod (2-22) is adjusted; the steel beam (4) is transported through the sliding units (2) at both ends to ensure that the sliding units (2) can pass through the skylight opening of different widths; S5: After the steel beam (4) is transported to the installation position, a lifting frame (3) is set at the installation position; the steel beam (4) is hoisted by a lifting device (7) hung on the lifting frame (3), and the connection between the two ends of the steel beam (4) and the telescopic rod (2-21) in the sliding unit (2) is released; S6: installing a steel column at the designed position; lifting the steel beam (4) using a lifting frame (3); and removing the lifting frame (3) after the steel beam (4) and the steel column are connected; S7: Install the secondary beam and connecting beam; S8: Repeat the above steps until the large-span steel beams and secondary beams of the skylight are installed.

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