Telescopic and detachable fabricated composite beam temporary support and construction method

Abstract

The invention relates to the field of constructional engineering, in particular to a telescopic and detachable fabricated composite beam temporary support and a construction method, and aims to solve the problems that a temporary support device in the prior art is complex to disassemble and assemble and inconvenient to adjust. The device comprises two composite beams and two fixing pipes which are detachably installed on the side walls of the two composite beams respectively. The connecting mechanism comprises a first main rod piece and a second main rod piece, the first main rod piece and the second main rod piece are the same in structure, one end of the first main rod piece is inserted into one fixing pipe, one end of the second main rod piece is inserted into the other fixing pipe, and threaded holes are formed in the ends, close to each other, of the first main rod piece and the second main rod piece. The supporting method of a traditional all-round scaffold is replaced, the defects that in common temporary supporting construction measures, the supporting size is fixed, welding installation is complex, and repeated utilization cannot be achieved are overcome, structure installation is easier, and the application range is wider.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering, and in particular to a retractable and detachable assembled composite beam temporary support and a construction method. Background Art

[0002] In steel structure engineering, composite beam design is widely used due to its economy. However, the upper flange of the composite beam may become unstable during the construction phase, which is usually solved by temporary support. The traditional construction method is to build a full-floor scaffolding or directly weld steel sections between beams based on on-site experience. Due to the lack of unified design standards, it is even mistaken to weld directly to the lower flange of the steel beam, resulting in a complete loss of support effect and posing a great safety hazard. Due to the lack of clear installation instructions, on-site construction personnel need to spend a lot of time and energy to adjust the support position and length, perform overhead welding, etc. At the same time, this temporary support may be too conservative, and in the case of safety risks, it also increases the cost of materials and labor. For this reason, this solution proposes a retractable and detachable prefabricated composite beam temporary support and construction method. Summary of the Invention

[0003] The present invention provides a retractable and detachable assembled composite beam temporary support and construction method, which solves the problems of complex assembly and disassembly and inconvenient adjustment of temporary support devices in the prior art.

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

[0005] A retractable and detachable assembled composite beam temporary support and construction method, comprising:

[0006] The mounting mechanism includes two composite beams and two fixing tubes detachably mounted on the side walls of the two composite beams;

[0007] The connecting mechanism includes a main rod member 1 and a main rod member 2, wherein the main rod member 1 and the main rod member 2 have the same structure, one end of the main rod member 1 is inserted into one of the fixed tubes, and one end of the main rod member 2 is inserted into the other fixed tube, and the ends of the main rod member 1 and the main rod member 2 that are close to each other are both provided with threaded holes;

[0008] The adjusting mechanism is arranged between the main rod member 1 and the main rod member 2 and is used to adjust the distance between the two, the adjusting member includes a mounting post and a fixing assembly detachably mounted at both ends of the mounting post, both ends of the mounting post are provided with a regular polygonal receiving hole, and the middle position of the outer circumference of the mounting post is provided with a mounting hole set through the mounting post, the fixing assembly includes a fixing block, a connecting screw screwed on one end of the fixing block and a locking member for movably connecting the fixing block to the mounting post, the outer circumference of the fixing block is consistent with the inner circle of the mounting hole, the other end of the fixing block is fixed with an abutment block and inserted into the receiving hole, the other end of the abutment block is provided with an inclined surface and extends into the mounting hole, and the connecting screw is consistent with the threaded hole;

[0009] A tightening mechanism, which is detachably fixed in the mounting hole and is used to tighten the abutment block extending into the interior thereof;

[0010] When the abutting block is gradually pressed tight, the fixing block moves toward the outside of the receiving hole. After the abutting block is pressed tight, the fixing block cannot move in the receiving hole.

[0011] As a further improvement of the above scheme, the locking member includes a fixing plate and a screw sleeve fixed on one side thereof, the fixing plate is provided with a through hole for the connecting screw to pass through, the width of the fixing block is greater than the diameter of the through hole, and the outer periphery of both ends of the mounting column are provided with external threads that match the screw sleeve, and the screw sleeve is threadedly sleeved on the end of the mounting column.

[0012] As a further improvement of the above solution, a fixing hole is provided on the outer wall of the composite beam, a fixing plate 2 is fixed to one end of the fixing tube, a fixing screw is fixed to the end of the fixing plate 2 away from the fixing tube, one end of the fixing screw extends through the fixing hole to the outside of the composite beam, and the external thread of the fixing screw is connected to a nut for locking it on the composite beam.

[0013] As a further improvement of the above solution, a socket 1 is provided on the fixed tube, and a socket 2 with the same inner diameter as that of the socket 1 is provided on the outer periphery of the main rod 1 and the outer periphery of the main rod 2, and the fixed tube is connected with a pin that matches the socket 1 and the socket 2.

[0014] As a further improvement of the above-mentioned scheme, the tightening mechanism includes an abutment column and a detachable fixing ring fixed to one end of the abutment column. One end of the abutment column is a conical structure. The outer periphery of the abutment column is consistent with the mounting hole, and grooves that engage with the abutment block are provided on the outer walls on both sides of the abutment column. The inner ring of the fixing ring is consistent with the outer periphery of the mounting column.

[0015] As a further improvement of the above solution, a connecting hole is provided at the other end of the abutting column, a fixing bolt is threadedly connected to the middle of the outer periphery of the fixing ring, and the fixing bolt is threadedly connected to the connecting hole.

[0016] As a further improvement of the above solution, an adjustment column is fixed to the outer side of one end of the fixing bolt.

[0017] As a further improvement of the above solution, the fixing ring is a semicircular ring structure, and both sides of the outer circumference of the fixing ring are fixed with insertion rods arranged along the radial direction thereof, and the outer circumference of the insertion rods is movably connected with a pressure rod.

[0018] A construction method for a retractable and detachable assembled composite beam temporary support comprises the following steps:

[0019] Step 1: Prefabricate all components in the factory according to standard dimensions and pre-assemble the adjustment mechanism;

[0020] Step 2: After the composite beam is transported to the site, the fixing pipes and connecting mechanisms are assembled;

[0021] Step 3: Assemble the tightening mechanism onto the mounting tube, and then connect the adjusting mechanism to the connecting tube;

[0022] Step 4: Rotate the fixed tube to adjust the distance between the two composite beams and complete the installation;

[0023] Step 5. When the concrete is poured and reaches the designed strength, all components are removed from the composite beam and can be reused.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. By designing the complex full-floor scaffolding temporary support into a retractable and detachable assembled and convenient support structure, a modular and simplified construction mode is achieved. The support components are prefabricated in the factory and can be installed on site through simple assembly and adjustment, which greatly simplifies the construction steps and reduces the construction difficulty. The modular assembly method enables construction workers to complete the support installation quickly and accurately, thereby greatly improving the overall construction quality and work efficiency, shortening the project schedule, and effectively saving labor costs.

[0026] 2. Greatly improved performance. Through standardized design and adjustable support structure, it effectively solves the complex construction process of full-floor scaffolding support and the non-standard construction problem caused by traditional welded support due to fixed size and complex installation. It eliminates the structural safety risks caused by improper support and ensures the stability of the composite beam during the construction stage.

[0027] 3. Through the setting of the adjustment mechanism and the tightening mechanism, the distance between the two composite beams can be easily adjusted, which can flexibly adapt to the construction needs of composite beams with different spacings. At the same time, the detachable design enables it to be quickly adjusted and reused, solving the problem that traditional supports cannot adapt to diversified construction scenarios, broadening the application scope of temporary supports, making it possible to use it conveniently and quickly in a variety of engineering structures and different construction environments, and improving the flexibility and practicality of engineering projects.

[0028] 4. The detachable design allows the supporting components to be quickly removed and reused after construction is complete, reducing material waste and lowering construction costs. Furthermore, the modular design reduces on-site processing and welding work, further conserving resources and aligning with the concept of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 It is a structural diagram between the composite beam and the connection mechanism;

[0031] Figure 3 is the structural diagram of the composite beam;

[0032] Figure 4 Schematic diagram of the structure in which nuts are used to lock fixing bolts on composite beams;

[0033] Figure 5 Schematic diagram of the structure of the fixed tube, main rod and latch;

[0034] Figure 6 It is a structural diagram of the fixing tube, fixing screw and nut;

[0035] Figure 7 It is a structural diagram of the adjusting mechanism and the pressing mechanism;

[0036] Figure 8 It is a structural diagram of the tightening mechanism;

[0037] Figure 9 This is a schematic diagram of the structure in which the mounting holes are opened on the mounting columns;

[0038] Figure 10 This is a cross-sectional view of the installation column;

[0039] Figure 11 for Figure 10 Enlarged view of point A in the middle.

[0040] Description of main symbols:

[0041] 1. Composite beam; 2. Fixed tube; 3. Main rod 1; 4. Pressure rod; 5. Mounting column; 6. Fixed plate 1; 7. Main rod 2; 8. Nut; 9. Fixing hole; 10. Fixing screw; 11. Socket 1; 12. Socket 2; 13. Latch; 14. Fixing plate 2; 15. Connecting screw; 16. Sleeve; 17. Fixing bolt; 18. Insert rod; 19. Adjusting column; 20. Fixing ring; 21. Connecting hole; 22. Abutting column; 23. Slot; 24. Abutting block; 25. Fixing block; 26. Mounting hole; 27. Storage hole. DETAILED DESCRIPTION

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0043] Example 1:

[0044] Please combine Figures 1-11 , a retractable and detachable assembled composite beam temporary support of this embodiment includes:

[0045] The installation mechanism includes two combined beams 1 and two fixing tubes 2 detachably installed on the side walls of the two combined beams 1. A fixing hole 9 is opened on the outer wall of the combined beam 1. A fixing plate 2 14 is fixed to one end of the fixing tube 2. A fixing screw 10 is fixed to the end of the fixing plate 2 14 away from the fixing tube 2. One end of the fixing screw 10 extends to the outside of the combined beam 1 through the fixing hole 9. The external thread of the fixing screw 10 is connected to a nut 8 for locking it on the combined beam 1. When assembling the fixing tube 2 on the combined beam 1, it can be installed in the factory or assembled after arriving at the site. During installation, the fixing bolt 10 is inserted into the fixing hole 9 and then the nut 8 is tightened.

[0046] The connecting mechanism includes a main rod 1 3 and a main rod 2 7. The main rod 1 3 and the main rod 2 7 have the same structure. One end of the main rod 1 3 is inserted into one of the fixed tubes 2, and one end of the main rod 2 7 is inserted into the other fixed tube 2. The ends of the main rod 1 3 and the main rod 2 7 that are close to each other are provided with threaded holes. The fixed tube 2 is provided with a socket 11. The outer periphery of the main rod 1 3 and the outer periphery of the main rod 2 7 are provided with a socket with the same inner diameter as the socket 11. Hole 2 12, the fixed tube 2 is plugged with a pin 13 that matches the socket 1 11 and the socket 2 12. When connecting the main rod 1 3 to the fixed tube 2, it is only necessary to insert one end of the main rod 1 3 into the fixed tube 2, and align the socket 1 11 with the socket 2 12, and then insert the pin 13 into the socket 1 11 and the socket 2 12, so as to clamp the main rod 1 3 to the fixed tube 2, and then connect the main rod 2 7 to the other fixed tube 2 in the same way.

[0047] The adjustment mechanism is arranged between the main rod 1 3 and the main rod 2 7 and is used to adjust the distance between the two. The adjustment member includes a mounting post 5 and a fixing assembly detachably mounted at both ends of the mounting post 5. Both ends of the mounting post 5 are provided with a regular polygonal receiving hole 27, and the middle position of the outer periphery of the mounting post 5 is provided with a mounting hole 26 that penetrates the mounting post 5. The fixing assembly includes a fixing block 25, a connecting screw 15 screwed to one end of the fixing block 25, and a locking member for movably connecting the fixing block 25 to the mounting post 5. The outer periphery of the fixing block 25 coincides with the inner circle of the mounting hole 26. The other end of the fixing block 25 is fixed with an abutment block 24 and inserted into the receiving hole 27. The receiving hole 2 A limiting hole for the abutment block 24 to pass through is provided between 7 and the mounting hole 26. The other end of the abutment block 24 is provided with a bevel and extends through the limiting hole to the mounting hole 26. The connecting screw 15 is consistent with the threaded hole. Both ends of the fixing block 25 are provided with pre-openings for installing the connecting screw 15. The inner wall of the pre-opening is provided with a thread that screws with the connecting screw 15. The pre-opening is coaxially arranged with the fixing block 25. The locking member includes a fixing plate 6 and a screw sleeve 16 fixed to one side thereof. A through hole for the connecting screw 15 to pass through is provided on the fixing plate 6. The width of the fixing block 25 is greater than the diameter of the through hole. The outer periphery of both ends of the mounting column 5 is provided with an external thread that matches the screw sleeve 16. The screw sleeve 16 is threaded Connect to the end of the mounting column 5. After the main rod 1 3 and the column rod 2 7 are respectively installed on the two composite beams 1, the adjustment mechanism is connected to the main rod 1 3 and the column rod 2 7. When connecting, the adjustment mechanism is assembled first. When assembling, first set the fixing plate 1 6 on the outer periphery of the connecting screw 15, and then insert one end of the two fixing blocks 25 into the two receiving holes 27 respectively, and then tighten the screw sleeve 16 on the end of the mounting tube 5 to fix the mounting block 25 on the mounting rod 5. The adjustment mechanism is then assembled. Then move the two connecting screws 15 so that one end of the two connecting screws 15 is respectively inserted into the threaded hole on the main rod 1 3 and the main rod 2 7. 3 and 2, and then the mounting column 5 is rotated to screw the two connecting screws 15 into the main rod 1 3 and the main rod 2 7 respectively, thereby completing the connection between the adjustment mechanism and the main rod 1 3 and the main rod 2 7. Setting the mounting block 25 to a movable mode can facilitate the connection of the connecting screw 15 with the main rod 1 3 or the main rod 2 7 to avoid moving the heavy composite beam 1. Instead, the connecting screw 15 can be directly moved to dock it with the threaded hole on the main rod 1 3 or the main rod 2 7. After the connecting screw 15 is screwed into the threaded hole, the tightening mechanism is inserted into the mounting hole 26 to tighten the two abutting blocks 24 to prevent the mounting block 25 from moving.

[0048] The tightening mechanism is detachably fixed in the mounting hole 26 and is used to tighten the abutment block 24 extending into the interior thereof. The tightening mechanism includes an abutment column 22 and a fixing ring 20 that is detachably fixed to one end of the abutment column 22. One end of the abutment column 22 is a conical structure. The outer periphery of the abutment column 22 coincides with the mounting hole 26, and a card groove 23 that engages with the abutment block 24 is provided on the outer walls on both sides of the abutment column 22. The inner ring of the fixing ring 20 coincides with the outer periphery of the mounting column 5. A connecting hole 21 is provided at the other end of the abutment column 22. A fixing bolt 17 is threadedly connected to the middle of the outer periphery of the fixing ring 20, and the fixing bolt 17 is threadedly connected to the connecting hole 21. When the abutment column 22 is inserted into the mounting hole 26, the fixing bolt 17 is threadedly connected to the connecting hole 21. After the inside of the mounting hole 26 abuts against the inclined surfaces of the two abutting blocks 24, the two abutting blocks 24 are squeezed into the two receiving holes 27, and the mounting block 25 moves toward the outside of the mounting rod 5, thereby extending the connecting screw outward, making it easier to insert it into the threaded hole on the main rod member 3 or the main rod member 2 7. When the abutting block 24 is inserted into the slot 23, the inner ring of the fixing ring 20 abuts against the outer periphery of the mounting rod 5, so that the abutting block 24 will not fall off from the mounting hole 26. When the abutting block 24 needs to be removed, the fixing bolt 17 can be loosened, and then the fixing ring 20 can be removed from the abutting block 24, and then the abutting block 24 can be pushed out to the outside of the mounting hole 26.

[0049] In this embodiment, when the concrete is poured and reaches the designed strength, the pin 13 on the fixing pipe 2 is pulled out and the rod 5 is installed by rotating it, so that all accessories can be removed and reused.

[0050] Example 2:

[0051] Combine Figure 1 、 Figure 8 and Figure 9 Based on Example 1, this embodiment has a further improvement in that an adjustment column 19 is fixed to the outside of one end of the fixing bolt 17. The provision of the adjustment column 19 makes it more convenient and labor-saving to rotate the fixing bolt 17, thereby facilitating the disassembly and assembly of the fixing ring 20.

[0052] Example 3:

[0053] Combine Figure 1 、 Figure 8 and Figure 9 Based on Examples 1 and 2, this embodiment is further improved in that: the fixing ring 20 is a semicircular ring structure, and both sides of the outer periphery of the fixing ring 20 are fixed with insertion rods 18 arranged along its radial direction, and the outer periphery of the insertion rod 18 is movably connected with a pressure rod 4, and one end of the pressure rod 4 is provided with a socket three that matches the insertion rod 18. When it is necessary to rotate the installation rod 5 to adjust the distance between the two combined beams or disassemble the accessories, the pressure rod 4 is inserted into the outer periphery of the insertion rod 18, and then the pressure rod 4 is rotated, which can drive the installation rod 5 to rotate more effortlessly.

[0054] Example 4:

[0055] A construction method for a retractable and detachable assembled composite beam temporary support comprises the following steps:

[0056] Step 1: The factory drills holes on the webs at designated locations on the composite beams. For continuous composite beams, double holes are drilled according to the designed spacing. At the same time, the adjusting mechanism, the tightening mechanism, and the connecting mechanism are batch-produced in the factory for future use. When assembling the adjusting mechanism, first assemble the connecting screw 15 onto the mounting tube 5.

[0057] Step 2: After the composite beam is transported to the site, first fix the fixing pipe 2 on the composite beam 1, and then assemble the connecting mechanism and the fixing pipe;

[0058] Step 3: Assemble the adjustment mechanism and the tightening mechanism, and connect the adjustment mechanism to the connecting pipe;

[0059] Step 4: Insert the compression rod 4 into one of the insertion rods 18, and then rotate the installation tube 5 to drive the fixed tube to rotate, thereby adjusting the distance between the two composite beams, and finally completing the installation;

[0060] Step 5. When the concrete is poured and reaches the designed strength, pull out the pin 13 on the fixing tube 2, and rotate the mounting tube to drive the connecting screw to move toward the inside of the pre-opened hole, thereby driving the main rod 1 3 and the main rod 2 7 to move and make them fall off from the fixing tube 2. All accessories can then be removed and reused.

[0061] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A retractable and detachable assembled composite beam temporary support, characterized in that: include: The mounting mechanism includes two composite beams and two fixing tubes detachably mounted on the side walls of the two composite beams; The connecting mechanism includes a main rod member 1 and a main rod member 2, wherein the main rod member 1 and the main rod member 2 have the same structure, one end of the main rod member 1 is inserted into one of the fixed tubes, and one end of the main rod member 2 is inserted into the other fixed tube, and the ends of the main rod member 1 and the main rod member 2 that are close to each other are both provided with threaded holes; The adjusting mechanism is arranged between the main rod member 1 and the main rod member 2 and is used to adjust the distance between the two, the adjusting member includes a mounting post and a fixing assembly detachably mounted at both ends of the mounting post, both ends of the mounting post are provided with a regular polygonal receiving hole, and the middle position of the outer circumference of the mounting post is provided with a mounting hole set through the mounting post, the fixing assembly includes a fixing block, a connecting screw screwed on one end of the fixing block and a locking member for movably connecting the fixing block to the mounting post, the outer circumference of the fixing block is consistent with the inner circle of the mounting hole, the other end of the fixing block is fixed with an abutment block and inserted into the receiving hole, the other end of the abutment block is provided with an inclined surface and extends into the mounting hole, and the connecting screw is consistent with the threaded hole; A tightening mechanism, which is detachably fixed in the mounting hole and is used to tighten the abutment block extending into the interior thereof; When the abutting block is gradually pressed tight, the fixing block moves toward the outside of the receiving hole. After the abutting block is pressed tight, the fixing block cannot move in the receiving hole.

2. The retractable and detachable assembled composite beam temporary support according to claim 1, characterized in that: The locking piece includes a fixing plate and a screw sleeve fixed on one side thereof. The fixing plate is provided with a through hole for the connecting screw to pass through. The width of the fixing block is greater than the diameter of the through hole. The outer periphery of both ends of the mounting column is provided with external threads that match the screw sleeve, and the screw sleeve is threadedly sleeved on the end of the mounting column.

3. The retractable and detachable assembled composite beam temporary support according to claim 1, characterized in that: A fixing hole is provided on the outer wall of the composite beam, a fixing plate 2 is fixed to one end of the fixing tube, a fixing screw is fixed to the end of the fixing plate 2 away from the fixing tube, one end of the fixing screw extends to the outside of the composite beam through the fixing hole, and a nut is connected to the external thread of the fixing screw for locking it on the composite beam.

4. The retractable and detachable assembled composite beam temporary support according to claim 1, characterized in that: The fixed tube is provided with a first plug hole, the outer periphery of the main rod member 1 and the outer periphery of the main rod member 2 are both provided with a second plug hole with the same inner diameter as the first plug hole, and the fixed tube is connected with a pin that matches the first plug hole and the second plug hole.

5. The retractable and detachable assembled composite beam temporary support according to claim 1, characterized in that: The tightening mechanism includes an abutment column and a detachable fixing ring fixed to one end of the abutment column. One end of the abutment column is a conical structure. The outer periphery of the abutment column is consistent with the mounting hole, and slots that engage with the abutment block are provided on the outer walls on both sides of the abutment column. The inner ring of the fixing ring is consistent with the outer periphery of the mounting column.

6. The retractable and detachable assembled composite beam temporary support according to claim 5, characterized in that: A connecting hole is formed at the other end of the abutting column, and a fixing bolt is threadedly connected to the middle of the outer periphery of the fixing ring, and the fixing bolt is threadedly connected to the connecting hole.

7. The retractable and detachable assembled composite beam temporary support according to claim 6, characterized in that: An adjusting column is fixed on the outer side of one end of the fixing bolt.

8. The retractable and detachable assembled composite beam temporary support according to claim 5, characterized in that: The fixing ring is a semicircular ring structure, and both sides of the outer circumference of the fixing ring are fixed with insertion rods arranged along the radial direction thereof, and the outer circumference of the insertion rods is movably plugged with pressure rods.

9. A construction method for temporary support of a retractable and detachable assembled composite beam according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Prefabricate all components in the factory according to standard dimensions and pre-assemble the adjustment mechanism; Step 2: After the composite beam is transported to the site, the fixing pipes and connecting mechanisms are assembled; Step 3: Assemble the tightening mechanism onto the mounting tube, and then connect the adjusting mechanism to the connecting tube; Step 4: Rotate the fixed tube to adjust the distance between the two composite beams and complete the installation; Step 5. When the concrete is poured and reaches the designed strength, all components are removed from the composite beam and can be reused.

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