High-altitude large-span cantilever supporting structure

Abstract

The utility model discloses a high-altitude large-span overhanging supporting structure which comprises a horizontally-arranged horizontal main beam, one end of the horizontal main beam is a fixed end and is vertically provided with an anchoring plate, the fixed end of the horizontal main beam is fixed to the side face of one side of the anchoring plate, and the anchoring plate is fixed to a structural layer through a through-wall bolt pre-buried in the structural layer. Diagonal draw bars located in the same vertical plane with the horizontal main beams are arranged above the horizontal main beams, one ends of the diagonal draw bars are connected through embedded anchor rings embedded in a structural layer above the anchor plates, and the other ends of the diagonal draw bars are connected to the horizontal main beams. An inclined supporting beam located in the same vertical plane with the horizontal main beam is arranged below the horizontal main beam, an L-shaped supporting block is arranged at one end of the inclined supporting beam, and the inner side of the L-shaped supporting block is used for abutting against the corner of the top of the outer side of a structural layer located below the anchoring plate and is connected to the structural layer through a pre-buried through-wall bolt. According to the utility model, the embedded part construction and bolt connection assembly mode is adopted, so that the concrete structure cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a high-altitude large-span cantilever support structure. Background Art

[0002] With the increasing number of high-rise buildings, their structural layouts are also becoming more diverse. Many high-rise buildings use cantilever structures to express the effect of spaciousness and transparency. Such structures are complex to construct and difficult to control safety. Cantilever support frames are often chosen due to the high cost and long construction period of setting up ground scaffolding. Common cantilever support frames are usually fixed to the building structure using anchor bolts that pass through the building structure. When they are later dismantled, they will leave installation holes in the building structure that communicate with the interior. These installation holes need to be sealed. However, if the waterproofing is not properly handled, water seepage will occur later. Utility Model Content

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a high-altitude, large-span cantilever support structure that is simple and convenient to install and does not cause damage to the building structure.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A high-altitude, large-span cantilever support structure includes a horizontally arranged horizontal main beam, one end of the horizontal main beam being a fixed end and having an anchor plate vertically arranged thereon, the fixed end of the horizontal main beam being fixedly connected to a side surface of the anchor plate, the length direction of the horizontal main beam being perpendicular to the plane of the anchor plate, through-wall bolts I being respectively arranged on the side of the anchor plate facing away from the horizontal main beam and on both sides of the horizontal main beam in the horizontal direction, the through-wall bolts I being pre-buried in a structural layer I, the screw section of the through-wall bolts I passing through the anchor plate in a direction parallel to the length of the horizontal main beam and being threadedly connected to a fixing nut I for locking and fixing the anchor plate;

[0006] A diagonal brace is provided above the horizontal main beam and is located in the same vertical plane as the horizontal main beam. One end of the diagonal brace is fixedly connected to a pre-buried anchor ring. The pre-buried anchor ring is provided with an embedded portion and is used to be embedded in structural layer II located above structural layer I. The other end of the diagonal brace is fixedly connected to the horizontal main beam, and the angle between the diagonal brace and the horizontal main beam is less than 90°.

[0007] Below the horizontal main beam, there is a diagonal bracing beam located in the same vertical plane as the horizontal main beam. One end of the diagonal bracing beam is provided with an L-shaped support block. The inner side of the L-shaped support block is used to abut against the outer top corner of the structural layer III located below the structural layer I. The end of the diagonal bracing beam where the L-shaped support block is located is fixedly connected to the outer side surface of the vertical part of the L-shaped support block. The other end of the diagonal bracing beam is fixedly connected to the horizontal main beam. The included angle between the diagonal bracing beam and the horizontal main beam is less than 90°. On the inner side of the L-shaped support block and at positions on both sides of the diagonal bracing beam in the horizontal direction, wall-piercing bolts II are respectively provided. The wall-piercing bolts II are used for pre-embedding in the structural layer III. The screw section of the wall-piercing bolt II passes through the vertical part of the L-shaped support block along the length direction parallel to the horizontal main beam and is threadedly connected with a fixing nut II for locking and fixing the L-shaped support block.

[0008] In the present utility model, the wall-piercing bolt I, the embedded anchor ring, and the wall-piercing bolt II are pre-embedded during the construction of the structural layer. In the subsequent installation of the horizontal main beam and the diagonal bracing beam, only the anchor plate and the L-shaped support block need to be passed through the screw sections of the bolts protruding from the corresponding structural layer, and fixed with the fixing nuts to complete the installation of the horizontal main beam and the diagonal bracing beam. For the installation of the diagonal tie rod, it only needs to be fixedly connected to the embedded anchor ring and the horizontal main beam respectively. After subsequent demolition, the parts exposed outside the structural layer can be cut off, which will not affect the aesthetics of the structural facade. At the same time, the pre-embedded structure does not penetrate and damage the structure, and will not cause any impact on the waterproofing.

[0009] As an optimization, a stay rope is provided on the diagonal bracing beam. One end of the stay rope is fixedly connected to the beam body of the diagonal bracing beam, and the other end is used for fixedly connecting to the structural layer I located below the anchor plate. The stay rope can tighten the diagonal bracing beam. It can not only brace the diagonal bracing beam, but also facilitate the installation of the diagonal bracing beam.

[0010] As an optimization, the number of the diagonal tie rods is two. One ends of the two diagonal tie rods are both fixedly connected to the embedded anchor ring, and the connection ends of the two diagonal tie rods with the horizontal main beam are arranged at intervals along the length direction of the horizontal main beam.

[0011] As an optimization, a supporting stiffening rib fixedly connected to the horizontal main beam and the anchor plate respectively is provided below the horizontal main beam.

[0012] As an optimization, adjusting bolts are respectively arranged above the horizontal part of the L-shaped support block and at positions on both sides of the inclined support beam in the horizontal direction. The screw section of the adjusting bolt passes vertically downward through the horizontal part of the L-shaped support block and is in threaded cooperation with it. The screw section of the adjusting bolt is used to press against the top surface of the structural layer III located below the horizontal part of the L-shaped support block. During the surface construction of the structural layer and the embedded construction of the wall-piercing bolt II, there will inevitably be certain dimensional errors. After the L-shaped support block is installed on the wall-piercing bolt II, there will be a gap between the horizontal part of the L-shaped support block and the top surface of the lower structural layer, so the horizontal part of the L-shaped support block cannot be supported. In this application, by screwing the adjusting bolt, the screw section of the adjusting bolt can be rotated downward until it finally presses against the top surface of the structural layer, and the adjusting bolt is used for support to ensure tight structural connection and accurate force application.

[0013] As an optimization, a connecting plate is horizontally arranged at one end of the inclined support beam away from the L-shaped support block. One end of the inclined support beam corresponding to the direction where the connecting plate is located is fixedly connected to the bottom surface of the connecting plate. The top surface of the connecting plate abuts against the bottom surface of the horizontal main beam. Fixing bolts for fixedly connecting the connecting plate and the horizontal main beam are respectively arranged on both sides of the inclined support beam along the width direction of the horizontal main beam on the connecting plate.

[0014] As an optimization, the horizontal main beam is an I-beam, and the web plate of the I-beam is vertically arranged. A plurality of scaffolding fastening positioning members are arranged at intervals along the length direction of the top surface of the horizontal main beam. The scaffolding fastening positioning member includes a positioning plate horizontally arranged on the top surface of the upper flange of the I-beam. A limiting portion for being clamped on one flange at the upper end of the I-beam is formed by bending one side side edge of the positioning plate. A limiting block is arranged below the other flange at the upper end of the I-beam and corresponding to the position of the positioning plate. A clamping bolt capable of clamping the limiting block on the flange of the I-beam so that the positioning plate is fastened to the I-beam is arranged between the positioning plate and the limiting block. A vertically arranged socket is fixedly connected to the top surface of the positioning plate. When erecting the scaffolding, the scaffolding fastening positioning members can be adjusted and locked according to the position first, and then the vertical support steel pipe in the scaffolding can be inserted into the socket for limiting support.

[0015] Compared with the prior art, the utility model has the following beneficial effects: On the premise of ensuring the structural strength, the utility model adopts the construction method of embedded parts and the assembly method of bolt connection, which is not only simple and convenient to install, but also does not damage the concrete structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the installation structure schematic diagram of the utility model;

[0017] Figure 2Schematic diagram of the installation structure of the horizontal main beam in the present utility model;

[0018] Figure 3 Schematic diagram of the installation structure of the diagonal bracing beam in the present utility model;

[0019] Figure 4 Schematic diagram of the installation structure of the scaffolding fastening and positioning member in the present utility model. Specific implementation manners

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. Components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings here is not intended to limit the scope of the present utility model claimed, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0021] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figures 1 to 4 shown, the high-altitude large-span cantilever support structure in this specific embodiment includes a horizontally arranged horizontal main beam 1. One end of the horizontal main beam 1 is a fixed end and is vertically provided with an anchor plate 2. The fixed end of the horizontal main beam 1 is fixedly connected to one side surface of the anchor plate 2. The length direction of the horizontal main beam 1 is perpendicular to the plane where the anchor plate 2 is located. On the side of the anchor plate 2 facing away from the horizontal main beam 1 and at positions on both sides of the horizontal main beam 1 in the horizontal direction, wall-piercing bolts I 3 are respectively provided. The wall-piercing bolts I 3 are used for being embedded in the structure layer I. The screw section of the wall-piercing bolts I 3 passes through the anchor plate 2 along the length direction parallel to the horizontal main beam 1 and is threadedly connected with a fixing nut I for locking and fixing the anchor plate 2.

[0023] Above the horizontal main beam 1, an inclined tension rod 4 located in the same vertical plane as the horizontal main beam 1 is provided. One end of the inclined tension rod 4 is fixedly connected with a pre-embedded anchor ring. The pre-embedded anchor ring is provided with a pre-embedded part and is used for being embedded in the structure layer II above the structure layer I. The other end of the inclined tension rod 4 is fixedly connected to the horizontal main beam 1. The included angle between the inclined tension rod 4 and the horizontal main beam 1 is less than 90°.

[0024] Below the horizontal main beam 1, there is a diagonal bracing beam 5 located in the same vertical plane as the horizontal main beam 1. One end of the diagonal bracing beam 5 is provided with an L-shaped support block 6. The inner side of the L-shaped support block 6 is used to abut against the outer top corner of the structural layer III below the structural layer I. One end of the diagonal bracing beam 5 where the L-shaped support block 6 is located is fixedly connected to the outer side surface of the vertical part of the L-shaped support block 6. The other end of the diagonal bracing beam 5 is fixedly connected to the horizontal main beam 1. The included angle between the diagonal bracing beam 5 and the horizontal main beam 1 is less than 90°. On the inner side of the L-shaped support block 6 and at positions on both sides of the diagonal bracing beam 5 in the horizontal direction, wall-through bolts II 7 are respectively provided. The wall-through bolts II 7 are used for being embedded in the structural layer III. The screw section of the wall-through bolt II 7 passes through the vertical part of the L-shaped support block 6 along the length direction parallel to the horizontal main beam 1 and is threadedly connected with a fixing nut II for locking and fixing the L-shaped support block 6.

[0025] In this specific embodiment, a stay rope 8 is provided on the diagonal bracing beam 5. One end of the stay rope 8 is fixedly connected to the beam body of the diagonal bracing beam 5, and the other end is used for being fixedly connected to the structural layer I below the anchor plate 2. The stay rope 8 can tension the diagonal bracing beam 5.

[0026] In this specific embodiment, the number of the diagonal tie rods 4 is two. One ends of the two diagonal tie rods 4 are both fixedly connected to the embedded anchor ring. The connection ends of the two diagonal tie rods 4 with the horizontal main beam 1 are arranged at intervals along the length direction of the horizontal main beam 1.

[0027] In this specific embodiment, a supporting stiffening rib 9 fixedly connected to the horizontal main beam 1 and the anchor plate 2 respectively is provided below the horizontal main beam 1.

[0028] In this specific embodiment, adjusting bolts 10 are respectively provided above the horizontal part of the L-shaped support block 6 and at positions on both sides of the diagonal bracing beam 5 in the horizontal direction. The screw section of the adjusting bolt 10 passes through the horizontal part of the L-shaped support block 6 vertically downward and is in threaded cooperation with it. The screw section of the adjusting bolt 10 is used for abutting against the top surface of the structural layer III below the horizontal part of the L-shaped support block 6.

[0029] In this specific embodiment, a connecting plate is horizontally arranged at the end of the diagonal bracing beam 5 away from the L-shaped support block 6. One end of the diagonal bracing beam 5 corresponding to the direction where the connecting plate is located is fixedly connected to the bottom surface of the connecting plate. The top surface of the connecting plate abuts against the bottom surface of the horizontal main beam 1. Fixing bolts for fixedly connecting the connecting plate and the horizontal main beam 1 are respectively provided on both sides of the diagonal bracing beam 5 along the width direction of the horizontal main beam 1 on the connecting plate.

[0030] In this specific embodiment, the horizontal main beam 1 is an I-beam, the web plate of the I-beam is vertically arranged, and a plurality of scaffolding fastening positioning members are arranged at intervals along the length direction of the horizontal main beam 1 on the top surface of the horizontal main beam 1. The scaffolding fastening positioning member includes a positioning plate 11 that is horizontally arranged and placed on the top surface of the upper flange of the I-beam. A limiting portion for being clamped on one flange on the upper end of the I-beam is formed by bending one side side edge of the positioning plate 11. A limiting block 12 is arranged below the other flange on the upper end of the I-beam and corresponding to the position of the positioning plate. A clamping bolt capable of clamping the limiting block 12 on the flange of the I-beam so that the positioning plate 11 is fastened to the I-beam is arranged between the positioning plate 11 and the limiting block 12. A vertically arranged socket 13 is fixedly connected to the top surface of the positioning plate 11.

[0031] After the formwork support frame is erected using the high-altitude long-span cantilever support structure as the support, all parties are required to conduct acceptance inspections and arrange automatic monitoring points. Before use, a load test is also required. It is advisable to select materials such as steel bars that are convenient for hoisting as the load. The load is increased step by step symmetrically. After the load exceeds 10% of the design value, the loading is stopped. The monitoring data is recorded in real time and it is observed whether it is normal and stable. The test lasts for 24 hours. If there is no abnormality in the data, the load can be unloaded step by step after the load test is completed.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the technical solutions. Those of ordinary skill in the art should understand that any modifications or equivalent replacements made to the technical solutions of the present invention without departing from the purpose and scope of the present technical solution shall be covered by the scope of the claims of the present invention.

Claims

1. A high-altitude large-span cantilever support structure, characterized in that: It includes a horizontally arranged horizontal main beam. One end of the horizontal main beam is a fixed end and is vertically provided with an anchor plate. The fixed end of the horizontal main beam is fixedly connected to one side surface of the anchor plate. The length direction of the horizontal main beam is perpendicular to the plane where the anchor plate is located. On the side of the anchor plate facing away from the horizontal main beam and at positions on both sides of the horizontal main beam in the horizontal direction, wall-through bolts I are respectively provided. The wall-through bolts I are used for being embedded in structural layer I. The screw rod section of the wall-through bolt I passes through the anchor plate along the length direction parallel to the horizontal main beam and is threadedly connected with a fixing nut I for locking and fixing the anchor plate. Above the horizontal main beam, there is an inclined tie rod in the same vertical plane as the horizontal main beam. One end of the inclined tie rod is fixedly connected with a pre-embedded anchor ring. The pre-embedded anchor ring is provided with a pre-embedded part and is used for being embedded in structural layer II above structural layer I. The other end of the inclined tie rod is fixedly connected to the horizontal main beam. The included angle between the inclined tie rod and the horizontal main beam is less than 90°. Below the horizontal main beam, there is an inclined support beam in the same vertical plane as the horizontal main beam. One end of the inclined support beam is provided with an L-shaped support block. The inner side of the L-shaped support block is used for abutting against the outer side top corner of structural layer III below structural layer I. The end of the inclined support beam where the L-shaped support block is located is fixedly connected to the outer side surface of the vertical part of the L-shaped support block. The other end of the inclined support beam is fixedly connected to the horizontal main beam. The included angle between the inclined support beam and the horizontal main beam is less than 90°. On the inner side of the L-shaped support block and at positions on both sides of the inclined support beam in the horizontal direction, wall-through bolts II are respectively provided. The wall-through bolts II are used for being embedded in structural layer III. The screw rod section of the wall-through bolt II passes through the vertical part of the L-shaped support block along the length direction parallel to the horizontal main beam and is threadedly connected with a fixing nut II for locking and fixing the L-shaped support block.

2. The high-altitude large-span cantilever support structure according to claim 1, wherein: A pull rope is provided on the inclined support beam. One end of the pull rope is fixedly connected to the beam body of the inclined support beam, and the other end is used for being fixedly connected to structural layer I below the anchor plate. The pull rope can tighten the inclined support beam.

3. The high-altitude large-span cantilever support structure according to claim 1, characterized in that: The number of the inclined tie rods is two. One ends of the two inclined tie rods are both fixedly connected to the pre-embedded anchor ring. The connection ends of the two inclined tie rods with the horizontal main beam are arranged at intervals along the length direction of the horizontal main beam.

4. The high-altitude large-span cantilever support structure according to claim 1, wherein: Below the horizontal main beam, there are support stiffeners respectively fixedly connected to the horizontal main beam and the anchor plate.

5. The high-altitude long-span cantilever support structure according to claim 1, characterized in that: Above the horizontal part of the L-shaped support block and at positions on both sides of the inclined support beam in the horizontal direction, adjusting bolts are respectively provided. The screw rod section of the adjusting bolt passes through the horizontal part of the L-shaped support block vertically downward and is in threaded cooperation with it. The screw rod section of the adjusting bolt is used for abutting against the top surface of structural layer III below the horizontal part of the L-shaped support block.

6. The high-altitude large-span cantilever support structure according to claim 1, wherein: A connecting plate is horizontally arranged at the end of the inclined support beam far away from the L-shaped support block. The end of the inclined support beam corresponding to the direction where the connecting plate is located is fixedly connected to the bottom surface of the connecting plate. The top surface of the connecting plate abuts against the bottom surface of the horizontal main beam. On the connecting plate and on both sides of the inclined support beam along the width direction of the horizontal main beam, fixing bolts are respectively provided for fixedly connecting the connecting plate and the horizontal main beam together.

7. The high-altitude large-span cantilever support structure according to claim 1, characterized in that: The horizontal main beam is an I-beam, and the web plate of the I-beam is vertically arranged. A plurality of scaffolding fastening and positioning members are arranged at intervals along the length direction of the horizontal main beam on the top surface of the horizontal main beam. The scaffolding fastening and positioning member includes a positioning plate horizontally arranged and placed on the top surface of the upper flange of the I-beam. A limiting portion for being clamped on one flange at the upper end of the I-beam is formed by bending one side edge of the positioning plate. A limiting block is arranged below the other flange at the upper end of the I-beam and corresponding to the position of the positioning plate. A clamping bolt capable of clamping the limiting block on the flange of the I-beam so that the positioning plate is fastened to the I-beam is arranged between the positioning plate and the limiting block. A vertically arranged socket is fixedly connected to the top surface of the positioning plate.

Images