A construction platform for high-rise residential aerial connecting beams and its construction method

Abstract

The present application relates to the field of building construction, and in particular to an aerial connecting beam construction platform for a high-rise residential building, comprising at least two groups of mutually parallel main beams, wherein both ends of the main beams are respectively fixed to the bottom frame beams on the surface of the residential body, and a plurality of secondary beams are sequentially erected above the main beams, wherein the plurality of secondary beams are mutually parallel and fixedly connected to the main beams, and a top frame beam is arranged above both ends of the main beams, wherein the top frame beam is fixedly connected to the residential body, and the top frame beam is connected to the main beam by a steel strand, and one end of the steel strand is fixed to the top frame, and the other end is fixed to the middle position of the main beam, and the upper part of the secondary beams is used for fully paving scaffolding boards and erecting full-height frames, which has the advantages of shortening the construction period of the connecting beams and reducing the investment in manpower and material resources.

Description

Technical Field

[0001] The present application relates to the field of building construction, and in particular to a high-rise residential aerial connecting beam construction platform and a construction method thereof. Background Art

[0002] As architectural design styles become increasingly diversified and stylized, various suspended structures with large spans, large areas and different shapes continue to emerge. In order to ensure the construction stability of the suspended structures, it is often necessary to set connecting beams between the columns to enhance their lateral stiffness and deformation coordination between the columns.

[0003] At present, the traditional method of connecting beam construction is to erect scaffolding from the ground, directly erect the scaffolding to the position where the connecting beam needs to be set, and then perform construction operations such as formwork and pouring of the connecting beam on the top of the scaffolding.

[0004] However, the above-mentioned connecting beam structure and its construction method are relatively complicated as a whole. When the height of the connecting beam is high, the height of the overall scaffolding that needs to be built is also correspondingly high. The whole process consumes manpower and financial resources, and the construction period is greatly extended. Summary of the invention

[0005] In order to shorten the construction period of connecting beams and reduce the investment in manpower and material resources, the present application provides a high-rise residential aerial connecting beam construction platform and a construction method thereof.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] On the one hand, the present application provides an aerial connecting beam construction platform for a high-rise residential building, comprising at least two groups of parallel main beams, wherein both ends of the main beams are respectively fixed to the bottom frame beams on the surface of the residential body, and a plurality of secondary beams are sequentially erected above the main beams, wherein the plurality of secondary beams are parallel to each other and fixedly connected to the main beams, and a top frame beam is arranged above both ends of the main beams, wherein the top frame beam is fixedly connected to the residential body, and the top frame beam is connected to the main beam by a steel strand, and one end of the steel strand is fixed to the top frame, and the other end is fixed to the middle position of the main beam, and the top of the secondary beams is used for fully paving scaffolding boards and erecting a full-height frame.

[0008] Optionally, a U-shaped bolt is embedded in the upper surface of the bottom frame beam, the main beam is arranged in the opening of the U-shaped bolt, and a pressure plate for pressing the upper surface of the main beam is provided on the U-shaped bolt, and a nut for pressing the pressure plate is threadedly connected on the U-shaped bolt.

[0009] Optionally, two placement grooves are provided in the middle of each main beam, an anchor box is fixedly provided in the placement groove, and one end of the steel strand is fixedly connected to the anchor box.

[0010] Optionally, two opposite extension bars are fixedly provided on the top end of the anchor box, and the extension bars are fixedly connected to the main beam by fastening bolts.

[0011] Optionally, the top frame beam is hollow inside, and single-hole clip anchors for the steel strand to pass through are provided at the upper and lower ends of the top frame beam, and the single-hole clip anchor is fixedly connected to the top frame beam. The single-hole clip anchor includes a single-hole anchor body and a plurality of clip assemblies circumferentially arranged around the steel strand, the single-hole anchor body is fixedly connected to the top frame beam, and the clip assembly is arranged inside the single-hole anchor body and is in extrusion contact with the circumferential surface of the steel strand.

[0012] Optionally, the anchor box includes a box body and a rope guide tube fixed on the top of the box body, the rope guide tube is arranged at an angle, and a locking block is welded and fixed to one end of the steel strand extending from the rope guide tube into the interior of the box body, the locking block is fixedly connected to one end of the rope guide tube facing the spring, and the end of the spring facing away from the locking block is fixedly connected to a contact block.

[0013] Optionally, the inner wall of the guide wire tube is serrated and contacts the circumferential surface of the steel strand.

[0014] Optionally, a ring is provided at one end of the steel strand near the locking block, the ring is welded and fixed to the steel strand, the ring is fixedly connected to a cable, the cable passes through the locking block, an installation opening is opened on one side of the box near the locking block, a cover plate is inserted into the installation opening, and the end of the cable is fixed to the inner side of the cover plate.

[0015] Optionally, a plurality of short steel bars for assisting in supporting the full frame are welded to the upper surface of the secondary beam.

[0016] On the other hand, the present application provides a construction method for a high-rise residential aerial connecting beam construction platform, comprising the following steps:

[0017] S1. Carry out force calculation and simulation analysis on the entire construction platform, and select appropriate main beams, secondary beams, steel strands, bolts and full-frame according to bending strength, shear strength, deflection and overall stability;

[0018] S2. Install a single-hole clip anchor on the top frame beam at the corresponding position of the connecting beam, and embed a U-bolt in the corresponding position of the bottom frame beam in advance;

[0019] S3. Lift the main beam to the corresponding position, calibrate it, and then connect it with U-bolts;

[0020] S4. After the main beam is installed, install the tensioning steel strand. One end of the steel strand is fixed to the anchor box, and the anchor box is installed in the placement groove. The other end of the steel strand passes through the single-hole clip anchor in the top frame beam and is tensioned and fixed by the clip.

[0021] S5. Build secondary beams on top of the main beam in sequence, with the spacing between adjacent secondary beams being 80-100cm, and fix the secondary beams to the main beam with bolts;

[0022] S6. Weld a plurality of short steel bars for assisting in supporting the full-frame at corresponding positions on the surface of the secondary beam;

[0023] S7. Lay the scaffolding planks on the secondary beam surface and fix them. Use the short steel bars on the secondary beam as a fulcrum to build a full-height frame. Use the full-height frame as a secondary construction platform to build the connecting beam.

[0024] It can be seen from the above technical solution that compared with the existing technology, in this application, before the construction of the connecting beam, there is no need to build scaffolding directly from the ground, but a construction platform can be built according to the actual height of the connecting beam. Through the system of steel strand tensioning and main beam support, the cross-sectional area of ​​the main beam is reduced while ensuring that the mid-span deformation meets the specification requirements; and the main beam, secondary beam, steel strand and full-frame, etc. can be recycled after dismantling, saving investment. The construction of the entire construction platform is also simpler and more convenient, shortening the construction period, while ensuring stability and safety.

[0025] In summary, this application has the following technical effects:

[0026] 1. By fixing the two ends of the main beam to the bottom frame beam with U-shaped bolts and pulling the middle part of the main beam with steel strands, the main beam is evenly stressed after installation, and the stability and safety are greatly improved;

[0027] 2. By installing the anchor box in the placement groove, the steel strand is fixed to the anchor box, so that the main beam can be subjected to the tension of the steel strand and it is more convenient to dismantle after the construction is completed;

[0028] 3. By welding several short steel bars on the surface of the secondary beam, the subsequent full-frame installation is more accurate and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the construction platform in the embodiment of the present application;

[0030] Figure 2 It is a partial structural schematic diagram of the embodiment of the present application to emphasize the connection method between the steel strand and the main beam;

[0031] Figure 3 It is a schematic diagram of a local structure of the embodiment of the present application to emphasize the U-bolt;

[0032] Figure 4 It is a cross-sectional view of the embodiment of the present application to emphasize the connection method between the steel strand and the top frame beam;

[0033] Figure 5This is a cross-sectional view of a connection structure between a steel strand and an anchor box in an embodiment of the present application;

[0034] Figure 6 This is a cross-sectional view of another connection structure between the steel strand and the anchor box in an embodiment of the present application.

[0035] In the figure, 1. main beam; 11. mounting groove; 2. secondary beam; 21. angle iron; 22. positioning bolt; 23. short steel bar; 3. top frame beam; 4. bottom frame beam; 5. steel strand; 51. locking block; 52. spring; 53. contact block; 54. collar; 55. cable; 6. U-bolt; 61. pressure plate; 62. nut; 7. anchor box; 71. box body; 711. extension strip; 712. fastening bolt; 713. installation port; 714. cover plate; 72. cable guide tube; 8. single-hole clip anchor; 81. single-hole anchor body; 82. clip assembly. DETAILED DESCRIPTION

[0036] The present application is further described in detail below in conjunction with the accompanying drawings.

[0037] Reference Figure 1 The present application provides a high-rise residential aerial connecting beam construction platform, including a main beam 1, a secondary beam 2, a top frame beam 3 and a steel strand 5. The main beam 1 includes two groups, and the two groups of main beams 1 are parallel to each other. A plurality of secondary beams 2 are provided, and the plurality of secondary beams 2 are parallel to each other and are erected on the surface of the main beam 1. The secondary beam 2 is fixedly connected to the main beam 1. During installation, both ends of the main beam 1 are erected on the surface of the bottom frame beam 4 of the residential structure, and the main beam 1 is fixedly connected to the bottom frame beam 4. The top frame beam 3 is arranged above the main beam 1, and two groups of top frame beams 3 are arranged. The two groups of top frame beams 3 are respectively located at the two ends of the main beam 1. A steel strand 5 is respectively provided at both ends of each group of top frame beams 3. One end of each steel strand 5 is fixed to the top frame beam 3, and the other end is fixed to the middle of the main beam 1, so as to tension the main beam 1.

[0038] Combination Figure 2 and Figure 3 Specifically, before construction, it is necessary to embed U-bolts 6 on the upper surface of the bottom frame beam 4, and the opening of the U-bolts 6 faces upward. During installation, the end of the main beam 1 is placed in the middle of the U-bolts 6, and then a pressure plate 61 is inserted into the U-bolts 6 so that the pressure plate 61 contacts the surface of the main beam 1, and the top of the U-bolts 6 is threadedly connected with a nut 62, which presses the pressure plate 61, and then presses the main beam 1 through the pressure plate 61, so that the two ends of the main beam 1 are stably and reliably clamped and fixed.

[0039] The secondary beam 2 and the main beam 1 can be fixed by welding or bolts. In this embodiment, they are fixed by using angle irons 21. Specifically, an angle iron 21 is provided on the opposite sides of each secondary beam 2. One side of the angle iron 21 is in contact with the main beam 1, and the other side is in contact with the secondary beam 2. Positioning bolts 22 are installed on the side of the angle iron 21 in contact with the main beam 1. The positioning bolts 22 pass through the angle iron 21 and are threadedly connected to the main beam 1. Therefore, each secondary beam 2 is confined between two groups of angle irons 21, which improves the stability of the secondary beam 2 after installation and facilitates disassembly after the construction is completed.

[0040] In this embodiment, the steel strand 5 is a steel strand 5 with a diameter of 15.2 mm, and the steel strand 5 is connected to the top frame beam 3 by tensioning and fixing. Figure 4 As shown, a single-hole clip anchor 8 is installed at the top and bottom of the top frame beam 3, respectively. The two single-hole clip anchors 8 are arranged at an angle, and the reserved channel formed between the two is consistent with the inclination angle of the steel strand 5, so as to facilitate the steel strand 5 to pass through the reserved channel. Each set of single-hole clip anchors 8 includes a single-hole anchor body 81 and a clip assembly 82. The single-hole anchor body 81 is welded and fixed to the top frame beam 3, and the channel inside the single-hole anchor body 81 is inclined. The clip assembly 82 is formed by a plurality of clips with rough inner walls. The clip wall thickness of the clip assembly 82 at the top gradually decreases along the position from the top frame beam 3 to the middle of the main beam 1, and the clip thickness of the clip assembly 82 at the bottom gradually increases along the position from the top frame beam 3 to the middle of the main beam 1. The steel strand 5 passes through the channel formed between the clip assemblies 82, and the steel strand 5 and the clip assembly 82 form a stable and firm interference fit, and the steel strand 5 is fixedly connected to the single-hole clip anchor 8 through friction.

[0041] In this embodiment, after the steel strand 5 passes through the single-hole clip anchor 8, it is fixed by tensioning. The tensioning adopts the YDQ front-clamp through-type hydraulic jack, so that the steel strand 5 and the single-hole clip anchor 8 form a stable connection. At this time, the steel strand 5 plays the main role of load-bearing and unloading.

[0042] Combination Figure 1 and Figure 5 The steel strand 5 and the main beam 1 can be fixed by welding or other stable connection methods. Considering the durability and firmness of the connection and the convenience of subsequent disassembly, in this embodiment, an anchor box 7 is fixed to the bottom end of the steel strand 5, and a placement groove 11 is opened at a corresponding position in the middle of the main beam 1, and the anchor box 7 is arranged in the placement groove 11.

[0043] An extension bar 711 is fixedly provided on the opposite sides of the anchor box 7, and the extension bar 711 extends to the upper surface of the main beam 1, and a fastening bolt 712 is provided on the surface of the extension bar 711. The fastening bolt 712 passes through the extension bar 711 and is threadedly connected to the main beam 1, so that the anchor box 7 and the main beam 1 form a stable and detachable connection. Therefore, during construction, the steel strand 5 can pull the middle position of the main beam 1 to reduce the mid-span deformation. After the construction is completed, only the fastening bolt 712 needs to be loosened to facilitate the disassembly of the anchor box 7.

[0044] In a preferred embodiment, the structure of the anchor box 7 includes a cube-shaped box body 71 and a cable guide tube 72 fixed to the upper surface of the box body 71. The box body 71 is hollow inside, and the cable guide tube 72 is integrally formed with the box body 71. The inside of the cable guide tube 72 is connected to the inside of the box body 71, and the cable guide tube 72 is in the same inclination direction as the steel strand 5 after being stressed. The bottom end of the steel strand 5 enters the inside of the box body 71 through the cable guide tube 72.

[0045] The bottom end of the strand 5 extends into the box 71 through the cable guide tube 72 and is fixedly connected to a locking block 51 . The locking block 51 is welded and fixed to the cable guide tube 72 . The cross-sectional size of the locking block 51 is larger than the inner diameter of the cable guide tube 72 .

[0046] A plurality of springs 52 are fixedly provided on the surface of one side of the locking block 51 facing the guide wire tube 72, and a contact block 53 is fixed to the end of the spring 52 facing away from the locking block 51. In the present embodiment, the spring 52 adopts a high-elasticity spring 52, and the two ends of the spring 52 are respectively welded and fixed to the contact block 53 and the locking block 51. Therefore, when the steel strand 5 is subjected to force, the rigid impact on the steel strand 5 is small, the elastic buffer is large, and the stability is further improved.

[0047] Furthermore, in order to facilitate the steel strand 5 to extend into the guide tube 72 and the anchor box 7, a locking block 51 is set at the end of the steel strand 5, and an installation opening 713 is opened on the surface of the anchor box 7 on the side away from the bottom end of the steel strand 5, and a cover plate 714 is provided at the installation opening 713. In this embodiment, in order to improve the sealing performance and stability of the cover, the cover plate 714 is provided with two layers of stepped rectangular plates, and after the cover plate 714 covers the installation opening 713, a part of the cover plate 714 penetrates into the installation opening 713, and the other part abuts against the outer surface of the box body 71.

[0048] like Figure 6As shown, in another preferred embodiment, in order to further improve the stability of the fixed connection between the steel strand 5 and the anchor box 7, a ring 54 is sleeved on the bottom end of the steel strand 5, and the ring 54 can be welded and fixed to the steel strand 5, can be welded and fixed to the end face of the locking block 51, or can be welded and fixed to the steel strand 5 and the locking block 51 at the same time. A cable 55 is fixedly connected to the ring 54, and the cable 55 can be a flexible rope directly tied to the ring 54, or a rigid rope directly welded and fixed to the ring 54. The other end of the cable 55 passes through the locking block 51 and is fixed to the inner wall surface of the cover plate 714. The specific fixing method of the two can be welding, or a lifting ring can be fixed on the inner side of the cover plate 714, and the end of the cable 55 is tied to the lifting ring (not shown in the figure).

[0049] A vertical short steel bar 23 is welded and fixed at a corresponding position on the upper surface of the secondary beam 2. The short steel bar 23 can be used as a positioning point. Later, a scaffolding board needs to be laid on the surface of the secondary beam 2. The scaffolding board needs to be designed as a part for the short steel bar 23 to give way. Finally, when a full-frame is set on the scaffolding board, each point of the short steel bar 23 can assist in receiving the full-frame and improve the stability of the full-frame installation. The specific receiving method can be to insert the short steel bar 23 into the vertical rod part of the full-frame, or by welding and other methods.

[0050] The present application also discloses a construction method for a high-rise residential aerial connecting beam construction platform, comprising the following steps:

[0051] S1. Perform force calculation and simulation analysis on the entire construction platform, and select appropriate main beam 1, secondary beam 2, steel strand 5, bolts and full frame according to bending strength, shear strength, deflection and overall stability; specifically, use double-jointed 22# industrial steel as main beam 1, 12# square steel as secondary beam 2, and 15.2mm steel strand 5;

[0052] S2. Install a single-hole clip anchor 8 on the top frame beam 3 at the corresponding position of the connecting beam, and embed a U-bolt 6 in advance at the corresponding position of the bottom frame beam 4;

[0053] S3, lifting the main beam 1, lifting it to the corresponding position and calibrating it, and then connecting it with the U-bolt 6;

[0054] S4. After the main beam 1 is installed, install the tensioning steel strand 5. One end of the steel strand 5 is fixed to the anchor box 7. The anchor box 7 is installed in the placement groove 11. The other end of the steel strand 5 passes through the single-hole clip anchor 8 in the top frame beam 3 and is tensioned and fixed by the clip.

[0055] S5. Build secondary beams 2 on the main beam 1 in sequence, with the spacing between adjacent secondary beams 2 being 80-100 cm, and fix the secondary beams 2 to the main beam 1 with bolts;

[0056] S6. Welding a plurality of short steel bars 23 for assisting in supporting the full frame at corresponding positions on the surface of the secondary beam 2;

[0057] S7. Fully spread and fix the scaffolding boards on the surface of the secondary beam 2, use the short steel bars 23 on the secondary beam 2 as a fulcrum to set up a full-height frame, and use the full-height frame as a secondary construction platform to build the connecting beam.

[0058] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A construction platform for aerial connecting beams of high-rise residential buildings, characterized by: The invention comprises at least two sets of mutually parallel main beams (1), the two ends of the main beams (1) are respectively fixed to the bottom frame beams (4) on the surface of the residential body, a plurality of secondary beams (2) are sequentially erected above the main beams (1), the plurality of secondary beams (2) are mutually parallel and fixedly connected to the main beams (1), a top frame beam (3) is arranged above the two ends of the main beam (1), the top frame beam (3) is fixedly connected to the residential body, the top frame beam (3) and the main beam (1) are connected by a steel strand (5), and one end of the steel strand (5) is connected to the main beam (1). One end is fixed to the top frame, and the other end is fixed to the middle position of the main beam (1); the upper part of the secondary beam (2) is used to fully lay scaffolding boards and set up a full-frame; two placement grooves (11) are provided in the middle position of each main beam (1), and an anchor box (7) is fixedly provided in the placement groove (11), and one end of the steel strand (5) is fixedly connected to the anchor box (7); two opposite extension bars (711) are fixedly provided at the top of the anchor box (7), and the extension bar (711) is fixedly connected to the main beam (1) by fastening bolts (712).

2. A high-rise residential aerial connecting beam construction platform according to claim 1, characterized in that: A U-shaped bolt (6) is pre-buried on the upper surface of the bottom frame beam (4); the main beam (1) is arranged in the opening of the U-shaped bolt (6); a pressure plate (61) for pressing the upper surface of the main beam (1) is arranged on the U-shaped bolt (6); and a nut (62) for pressing the pressure plate (61) is threadedly connected on the U-shaped bolt (6).

3. The high-rise residential aerial connecting beam construction platform according to claim 1 is characterized by: The top frame beam (3) is hollow inside, and single-hole clip anchors (8) for the steel strand (5) to pass through are provided at both upper and lower ends of the top frame beam (3). The single-hole clip anchor (8) is fixedly connected to the top frame beam (3), and the single-hole clip anchor (8) comprises a single-hole anchor body (81) and a plurality of clip assemblies (82) circumferentially arranged around the steel strand (5). The single-hole anchor body (81) is fixedly connected to the top frame beam (3), and the clip assemblies (82) are arranged inside the single-hole anchor body (81) and are in extrusion contact with the circumferential surface of the steel strand (5).

4. The high-rise residential aerial connecting beam construction platform according to claim 1 is characterized by: The anchor box (7) comprises a box body (71) and a cable guide tube (72) fixedly arranged on the top of the box body (71); the cable guide tube (72) is arranged obliquely; a locking block (51) is welded and fixed to one end of the steel strand (5) extending from the cable guide tube (72) into the interior of the box body (71); a spring (52) is fixedly connected to one end of the locking block (51) facing the cable guide tube (72); and a contact block (53) is fixedly connected to the end of the spring (52) facing away from the locking block (51).

5. The high-rise residential aerial connecting beam construction platform according to claim 4 is characterized by: The inner wall of the cable guide tube (72) is serrated and in contact with the circumferential surface of the steel strand (5).

6. A high-rise residential aerial connecting beam construction platform according to claim 5, characterized in that: A ring (54) is sleeved on one end of the steel strand (5) near the locking block (51), the ring (54) is welded and fixed to the steel strand (5), the ring (54) is fixedly connected to a cable (55), the cable (55) passes through the locking block (51), a mounting opening (713) is opened on one side of the box body (71) near the locking block (51), a cover plate (714) is inserted into the mounting opening (713), and the end of the cable (55) is fixed to the inner side of the cover plate (714).

7. The high-rise residential aerial connecting beam construction platform according to claim 1 is characterized by: A plurality of short steel bars (23) for assisting in supporting the full frame are welded on the upper surface of the secondary beam (2).

8. A construction platform for high-rise residential aerial connecting beams according to any one of claims 1 to 7, wherein the construction method comprises the following steps: S1. Perform force calculation and simulation analysis on the entire construction platform, and select appropriate main beams (1), secondary beams (2), steel strands (5), bolts and full frame according to bending strength, shear strength, deflection and overall stability; S2. Install a single-hole clip anchor (8) on the top frame beam (3) at the corresponding position of the connecting beam, and embed a U-shaped bolt (6) in advance at the corresponding position of the bottom frame beam (4); S3, lifting the main beam (1), lifting it to the corresponding position and calibrating it, and then connecting it with U-bolts (6); S4. After the main beam (1) is installed, the tensioning steel strand (5) is installed. One end of the steel strand (5) is fixed to the anchor box (7), and the anchor box (7) is installed in the placement groove (11). The other end of the steel strand (5) passes through the single-hole clip anchor (8) in the top frame beam (3) and is tensioned and fixed by the clip. S5. Secondary beams (2) are sequentially erected above the main beam (1), with the spacing between adjacent secondary beams (2) being 80-100 cm, and the secondary beams (2) are fixed to the main beam (1) by bolts; S6. Welding a plurality of short steel bars (23) for assisting in supporting the full frame at corresponding positions on the surface of the secondary beam (2); S7. The surface of the secondary beam (2) is fully covered with scaffolding boards and fixed, and a full-height frame is erected using the short steel bars (23) on the secondary beam (2) as a fulcrum, and the connecting beam is constructed using the full-height frame as a secondary construction platform.

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