Prefabricated steel structure building primary and secondary beam connecting structure and construction technology
By using positioning mechanisms and limiting mechanisms to lock the positions of the main beam and the secondary beam in steel structure buildings, the problems of long construction cycles and high maintenance costs caused by the existing connection methods are solved, and fast and accurate connections and maintenance are achieved.
Patent Information
- Application Number
- CN202510032597.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-02-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The connection methods between the main beams and secondary beams of existing steel structure buildings are mostly welded or bolted, resulting in a long construction period, difficulty and uncontrollable accuracy. As the service life increases, the connection nodes may wear and corrosion, and the maintenance cost is high. .
The connecting structure including the main beam, the secondary beam, the positioning mechanism and the limiting mechanism is adopted. The positioning mechanism locks the position of the secondary beam through the positioning mechanism, and the limiting mechanism locks the positioning mechanism to achieve rapid and accurate connection and maintenance between the main beam and the secondary beam.
It shortens the construction cycle, reduces the construction difficulty, ensures installation accuracy, improves construction efficiency, simplifies maintenance steps, and reduces the maintenance cost of steel structure buildings.
Smart Images
Figure CN119434451A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of steel structure building construction, and in particular to a primary and secondary beam connection structure and a construction process for an assembled steel structure building. Background Art
[0002] Prefabricated steel structure buildings are prefabricated buildings whose building structure system is mainly composed of steel (structure) parts. Most of the components of prefabricated steel structure buildings are prefabricated in the factory, and only need to be assembled and connected on site. This "building blocks" construction method greatly shortens the construction period. Steel structure buildings have good thermal insulation performance, which can reduce building energy consumption and reduce the impact on the environment. Steel structure materials can be recycled and reused, which is in line with the concept of sustainable development.
[0003] The development of prefabricated steel structure buildings has promoted the development of building industrialization. Through factory production, standardized design and modular construction, the scale, standardization and efficiency of building production have been achieved. In the existing technology, the main beams and secondary beams of steel structure buildings are mostly fixed by welding or bolts. When installing the main beams and secondary beams, the construction period is long, the construction is difficult, and the installation accuracy cannot be controlled, which reduces the construction efficiency. With the increase of the service life of steel structure buildings, the connection nodes of the main beams and secondary beams may have problems such as wear and corrosion. When construction workers replace the worn parts, the steps are cumbersome and complicated, which increases the maintenance cost of steel structure buildings. Summary of the invention
[0004] (1) Technical issues to be resolved In order to overcome the disadvantages that the main beams and secondary beams of steel structure buildings are mostly fixed by welding or bolts, the construction period is long, the construction difficulty is great, the installation accuracy cannot be controlled, and the construction efficiency is reduced; as the steel structure building serves a longer period of time, the connection nodes of the main beams and secondary beams may suffer from problems such as wear and corrosion, and the steps for construction personnel to replace the worn parts are cumbersome and complicated, which increases the maintenance cost of the steel structure building. The technical problem to be solved by the present invention is to provide a main and secondary beam connection structure and a construction process for an assembled steel structure building.
[0005] (2) Technical solution In order to solve the above technical problems, the present invention provides a main and secondary beam connection structure of an assembled steel structure building, including a main beam, the cross-section of the main beam is I-shaped, a connecting plate is arranged on the upper surface of the main beam, a supporting beam is arranged on the lower surface of the main beam, two positioning mechanisms are arranged on the side of the main beam, a limiting mechanism is arranged on the side of the positioning mechanism, the secondary beam is arranged on the side of the main beam and located between the two positioning mechanisms, the positioning mechanism includes two guide rails, the cross-section of the guide rails is T-shaped, the guide rails are fixedly connected to the main beam, and two connecting parts are slidably connected to the outer sides of the two guide rails, the cross-section of the connecting part is L-shaped, and a positioning handle is fixedly connected to one end of the connecting part.
[0006] Preferably, the positioning mechanism also includes eight positioning columns, every four of the positioning columns are fixedly connected to one of the connecting pieces, a circular ring groove is provided at the end of the positioning column, the end of the positioning column is hemispherical, four circular through holes are provided on the side of one end of the connecting piece, the positioning column on the side of one of the connecting pieces is slidably connected in the circular through hole of the other connecting piece, square grooves are provided on the sides of the two connecting pieces, and T-shaped sliding grooves are provided on the sides of the square grooves.
[0007] Preferably, the positioning mechanism also includes four positioning blocks, the cross-section of the positioning block is T-shaped, the positioning block is slidably connected in the T-shaped slide groove of the connecting piece, the two positioning blocks in the same T-shaped slide groove are fixedly connected with positioning springs on opposite sides, the upper surface of the positioning block is rotatably connected to a linkage rod via a rotating shaft, the middle parts of the two linkage rods are rotatably connected via a rotating shaft, the other end of the linkage rod is rotatably connected to a synchronization rod via a rotating shaft, the middle parts of the two synchronization rods are rotatably connected via a rotating shaft, the other end of the synchronization rod is rotatably connected to a synchronization block via a rotating shaft, and the cross-section of the synchronization block is square.
[0008] Preferably, the limiting mechanism includes two slide rails, the cross-section of the slide rails is L-shaped, the slide rails are fixedly connected to the side of the connecting piece, the opposite sides of the two slide rails are slidably connected to two limit blocks, the opposite sides of the two limit blocks are provided with four square slide grooves, the outer side of the limit block is fixedly connected to an unlocking handle, the other side of the limit block is provided with two circular holes, the circular holes are fixedly connected to a limit spring, the other end of the limit spring is fixedly connected to a limit plate, and the limit plate is fixedly connected to the side of one end of the connecting piece.
[0009] Preferably, the limiting mechanism also includes two locking plates, which are rotatably connected to the limiting plate via a rotating shaft, and two square through holes are provided on the side of the limiting plate, and the locking plate is rotatably connected in the square through holes, and the cross-section of one end of the locking plate is a right triangle, and the opposite sides of the two locking plates are fixedly connected with locking springs, and the side of the limiting block also has two L-shaped grooves, and the other end of the locking plate is fixedly connected with an unlocking plate.
[0010] Preferably, the limiting mechanism also includes an unlocking rod, which is slidably connected to the limiting block and the limiting plate, one end of the unlocking rod is hemispherical, the other end of the unlocking rod passes through the limiting plate and the end is fixedly connected to the unlocking block, the cross-section of the unlocking block is a right triangle, a return spring is fixedly connected to the outside of the unlocking rod and between the limiting plate and the unlocking block, the other end of the unlocking plate is provided with a square through hole, and the unlocking block is slidably connected in the square through hole.
[0011] Preferably, circular through holes are opened on the upper surfaces of the main beam and the secondary beam, and anti-loosening nuts are slidably connected in the circular through holes. The inner side of the anti-loosening nut is connected to a fixing bolt by threaded rotation, and the outer side of the fixing bolt is slidably connected to the connecting plate, and the cross-section of the connecting plate is T-shaped.
[0012] Preferably, the support beam is fixed to the lower surface of the main beam by welding, and the cross-section of the support beam is triangular.
[0013] Preferably, the other end of the connecting member is slidably connected to the secondary beam on the outside, the cross-section of the secondary beam is I-shaped, eight circular through holes are opened at the end of the secondary beam, and the positioning column is slidably connected in the circular through holes.
[0014] Preferably, a construction process for the primary and secondary beam connection structure of an assembled steel structure building comprises the following steps: S1, first fix one of the supporting beams on the lower surface of the main beam by welding, and then use a crane to hoist the secondary beam to the top of the supporting beam; S2. Use the positioning mechanism to lock the position of the secondary beam, push the positioning handle on one side inward, the positioning handle slides inward to drive the two connecting members to slide toward each other to clamp the secondary beam, the two connecting members slide toward each other to push the positioning column to penetrate the secondary beam and the connecting member on the other side, and the positioning mechanism locks the position of the secondary beam; S3, using the limiting mechanism to lock the positioning mechanism, the positioning column passes through the secondary beam and hits the unlocking rods on both sides with the connecting piece on the other side, the unlocking rods on both sides slide in the opposite direction to push the two locking plates to move toward each other and disengage from the L-shaped sliding groove on the side of the limiting block, the limiting spring releases the pressure to push the two limiting blocks to fit into the circular ring groove at the end of the positioning column, and at this time the limiting mechanism locks the position of the positioning mechanism; S4, locking and connecting the connecting plate with the main beam and the secondary beam by means of the fixing bolts and the locking nuts, and the installation of the main beam and the secondary beam is now completed; S5. When the connection node between the main beam and the secondary beam is worn, first release the locking of the positioning mechanism by the limiting mechanism, and then release the position restriction of the positioning mechanism on the secondary beam. At this time, remove the fixing bolts, the anti-loosening nuts and the connecting parts above the main beam and the secondary beam, and then replace the secondary beam.
[0015] (3) Beneficial effects 1. By setting the positioning mechanism, the positioning handle slides inward to drive the two connecting parts to slide toward each other. The two connecting parts slide toward each other to clamp the secondary beam. The two connecting parts slide toward each other to push the positioning column to penetrate the secondary beam and the connecting part on the other side. At this time, the positioning mechanism locks the position of the secondary beam to prevent the position of the secondary beam from being skewed, shortening the construction period, reducing the construction difficulty, ensuring the installation accuracy, and improving the construction efficiency; 2. By setting a limit mechanism, the positioning column passes through the secondary beam and hits the unlocking rods on both sides with the connecting piece on the other side. The unlocking rods on both sides slide in opposite directions and push the other ends of the two locking plates to move toward each other and disengage from the L-shaped sliding groove on the side of the limit block. The limit spring releases the pressure and pushes the two limit blocks to slide toward each other and get stuck in the circular ring groove at the end of the positioning column. At this time, the limit mechanism locks the position of the positioning mechanism, simplifies the construction and installation steps, optimizes the fixing method of the main beam and the secondary beam, and reduces the maintenance cost of the steel structure building. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the positioning mechanism structure of the present invention; Figure 3 It is a schematic diagram of the linkage rod and synchronization rod structure of the present invention; Figure 4 is a cross-sectional view of a connector of the present invention; Figure 5 It is a schematic diagram of the structure of the limiting mechanism of the present invention; Figure 6 It is a cross-sectional view of the limit block of the present invention; Figure 7is a cross-sectional view of a locking nut of the present invention; Figure 8 It is a schematic diagram of the supporting beam structure of the present invention.
[0017] The marks in the accompanying drawings are: 1-main beam, 2-connecting plate, 201-fixing bolt, 202-anti-loosening nut, 3-secondary beam, 4-support beam, 5-positioning mechanism, 501-guide rail, 502-connecting piece, 503-positioning column, 504-positioning handle, 505-positioning block, 506-positioning spring, 507-linking rod, 508-synchronizing block, 509-synchronizing rod, 6-limiting mechanism, 601-slide rail, 602-limiting block, 603-limiting plate, 604-limiting spring, 605-unlocking handle, 606-locking spring, 607-locking plate, 608-unlocking plate, 609-unlocking rod, 610-reset spring, 611-unlocking block. DETAILED DESCRIPTION
[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example 1
[0019] A prefabricated steel structure building main and secondary beam connection structure, such as Figure 1 , Figure 2 As shown, it includes a main beam 1, the cross section of the main beam 1 is an I-shaped, and a connecting plate 2 is arranged on the upper surface of the main beam 1. By arranging the connecting plate 2, the structural bearing capacity and stability of the main beam 1 and the secondary beam 3 are improved. A supporting beam 4 is arranged on the lower surface of the main beam 1. By arranging the supporting beam 4, support is provided for the secondary beam 3, and the main beam 1 and the secondary beam 3 can be quickly fixed. Two positioning mechanisms 5 are arranged on the side of the main beam 1. By arranging the positioning mechanism 5, the position of the secondary beam 3 is locked to prevent the secondary beam 3 from tilting, thereby shortening the construction period and reducing the construction difficulty. The side of the positioning mechanism 5 is limited The positioning mechanism 6 is locked by setting the limiting mechanism 6, which simplifies the construction and installation steps. A secondary beam 3 is set on the side of the main beam 1 and between the two positioning mechanisms 5. The positioning mechanism 5 includes two guide rails 501. The cross-section of the guide rail 501 is T-shaped. The guide rail 501 is fixedly connected to the main beam 1. The guide rail 501 is fixedly connected to two opposite inner sides of the I-shape of the main beam 1. Two connecting members 502 are slidably connected to the outer sides of the two guide rails 501. The cross-section of the connecting member 502 is L-shaped. One end of the connecting member 502 is fixedly connected to a positioning handle 504.
[0020] like Figure 2 , Figure 3As shown, the positioning mechanism 5 also includes eight positioning columns 503, and every four positioning columns 503 are fixedly connected to the side of one of the connecting members 502. The four positioning columns 503 are arranged in sequence from top to bottom on the side of the connecting member 502. A circular annular groove is provided at the end of the positioning column 503, and the end of the positioning column 503 is hemispherical. Four circular through holes are provided at one end of the connecting member 502. The four positioning columns 503 on the side of one connecting member 502 are slidably connected to the four circular through holes of another connecting member 502. The positioning columns 503 are locked by the limiting mechanism 6, so that the secondary beam 3 can be locked between the two connecting members 502, simplifying the connection steps of the main beam 1 and the secondary beam 3. Square grooves are symmetrically provided on the sides of the two connecting members 502, and T-shaped sliding grooves are provided on the sides of the square grooves.
[0021] like Figure 2 , Figure 3 As shown, the positioning mechanism 5 also includes four positioning blocks 505, the cross-section of the positioning block 505 is T-shaped, and every two positioning blocks 505 are slidably connected in a T-shaped slot opened on the side of the connecting member 502. The two positioning blocks 505 in the same T-shaped slot are fixedly connected with positioning springs 506 on the opposite sides, and the upper surfaces of the positioning blocks 505 in the same T-shaped slot are rotatably connected with a linkage rod 507 via a rotating shaft, the middle parts of the two linkage rods 507 are rotatably connected via a rotating shaft, and the other end of the linkage rod 507 is rotatably connected with a synchronization rod 509 via a rotating shaft, the middle parts of the two synchronization rods 509 are rotatably connected via a rotating shaft, and the other end of the synchronization rod 509 is rotatably connected with a synchronization block 508 via a rotating shaft, and the cross-section of the synchronization block 508 is square.
[0022] like Figure 5 , Figure 6 As shown, the limiting mechanism 6 includes two slide rails 601, the cross-section of the slide rails 601 is L-shaped, the slide rails 601 are symmetrically fixedly connected to the side of the connecting member 502, and the opposite sides of the two slide rails 601 are slidably connected to two limit blocks 602. The opposite sides of the two limit blocks 602 are provided with four square slide grooves, and the positions of the four square slide grooves correspond to the positions of the circular through holes on the side of the connecting member 502. The outer side of the limit block 602 is fixedly connected with an unlocking handle 605, and the other side of the limit block 602 is provided with two circular holes, and the limiting springs 604 are fixedly connected in the circular holes, and the other end of the limiting spring 604 is fixedly connected to the limiting plate 603, and the limiting plate 603 is fixedly connected to the connecting member 502.
[0023] like Figure 5 , Figure 6As shown, the limiting mechanism 6 also includes two locking plates 607, which are rotatably connected to the limiting plate 603 via a rotating shaft. Two square through holes are provided on the side of the limiting plate 603, and the locking plate 607 is rotatably connected in the square through holes via a rotating shaft. The cross-section of one end of the locking plate 607 is a right-angled triangle, and the opposite sides of the two locking plates 607 are fixedly connected with locking springs 606. Two L-shaped grooves are also provided on the side of the limiting block 602. The right-angled triangle at one end of the locking plate 607 can be inserted into the L-shaped groove on the side of the limiting block 602, thereby limiting and locking the limiting block 602, and the other end of the locking plate 607 is fixedly connected with an unlocking plate 608.
[0024] like Figure 5 , Figure 6 As shown, the limiting mechanism 6 also includes an unlocking rod 609, which is slidably connected to the limiting block 602 and the limiting plate 603. One end of the unlocking rod 609 is hemispherical, and the other end of the unlocking rod 609 passes through the limiting plate 603 and is fixedly connected to an unlocking block 611 at the end. The cross-section of the unlocking block 611 is a right triangle, and a return spring 610 is fixedly connected to the outside of the unlocking rod 609 and between the limiting plate 603 and the unlocking block 611. A square through hole is provided at the other end of the unlocking plate 608, and the unlocking block 611 is slidably connected in the square through hole.
[0025] like Figure 1 , Figure 7 As shown, circular through holes are opened on the upper surfaces of the main beam 1 and the secondary beam 3, and a locking nut 202 is slidably connected in the circular through hole. The inner side of the locking nut 202 is connected to a fixing bolt 201 by threaded rotation, and the outer side of the fixing bolt 201 is slidably connected to a connecting plate 2, and the cross-section of the connecting plate 2 is T-shaped.
[0026] like Figure 1 , Figure 8 As shown, a supporting beam 4 is fixed to the lower surface of the main beam 1 by welding, and the cross section of the supporting beam 4 is a triangle.
[0027] like Figure 1 As shown, the other end of the connecting member 502 is slidably connected to a secondary beam 3 on the outside. The cross-section of the secondary beam 3 is an I-shape. Eight circular through holes are opened at the end of the secondary beam 3. The eight circular through holes correspond to the positioning columns 503 set on the side of the connecting member 502. The positioning columns 503 are slidably connected in the circular through holes.
[0028] Working principle: When installing the main beam 1 and the secondary beam 3 of the steel structure building, first fix a supporting beam 4 on the lower surface of the main beam 1 by welding, then use a crane to lift the secondary beam 3 to the top of the supporting beam 4, and then push the positioning mechanism 5 to lock the position of the secondary beam 3 to prevent the position of the secondary beam 3 from being skewed, thereby ensuring the installation accuracy and improving the construction efficiency. Then use the limiting mechanism 6 to lock the positioning mechanism 5, thereby further fixing the position of the secondary beam 3, simplifying the construction and installation steps, shortening the construction period, and reducing the construction difficulty. The connecting plate 2 is locked and connected to the main beam 1 and the secondary beam 3 by the fixing bolts 201 and the anti-loosening nuts 202. When the connection node between the main beam 1 and the secondary beam 3 is worn, the locking of the positioning mechanism 5 by the limiting mechanism 6 is first released, and then the position restriction of the secondary beam 3 by the positioning mechanism 5 is released. At this time, the fixing bolts 201, the anti-loosening nuts 202 and the connecting parts 502 above the main beam 1 and the secondary beam 3 are removed, and the secondary beam 3 can be replaced, which optimizes the fixing method of the main beam 1 and the secondary beam 3 and reduces the maintenance cost of the steel structure building.
[0029] When the positioning mechanism 5 is pushed to lock the position of the secondary beam 3, the positioning handle 504 on one side is pushed inward, and the positioning handle 504 slides inward and drives the connecting member 502 to slide inward on the inner side of the main beam 1. The connecting member 502 on one side slides inward and drives the two positioning blocks 505 to slide in the opposite direction in the T-shaped slide groove of the connecting member 502. The two positioning blocks 505 slide in the opposite direction to stretch the positioning spring 506. The two positioning blocks 505 slide in the opposite direction and drive one end of the two linkage rods 507 to slide in the opposite direction. Under the action of the middle shaft of the linkage rod 507, one end of the two linkage rods 507 slides in the opposite direction and drives the other end of the two linkage rods 507 to slide in the opposite direction. The other end of the two linkage rods 507 slides in the opposite direction and drives the two synchronization rods 509 One end of the two synchronization rods 509 slides in the opposite direction, and under the action of the middle shaft of the synchronization rod 509, one end of the two synchronization rods 509 slides in the opposite direction, driving the other end of the two synchronization rods 509 to slide in the opposite direction, and the other end of the two synchronization rods 509 slides in the opposite direction, driving the two synchronization blocks 508 to slide in the opposite direction, and the two synchronization blocks 508 slide in the opposite direction to pull the other side connection piece 502 to slide inward, and the two connection pieces 502 slide towards each other to clamp the secondary beam 3, and the two connection pieces 502 slide towards each other to push the positioning column 503 to penetrate the secondary beam 3 and the connection piece 502 on the other side. At this time, the positioning mechanism 5 locks the position of the secondary beam 3 to prevent the position of the secondary beam 3 from being skewed, shortening the construction period, reducing the construction difficulty, ensuring the installation accuracy, and improving the construction efficiency.
[0030] When the positioning column 503 positions and locks the secondary beam 3, the limiting mechanism 6 locks the position of the positioning mechanism 5. When the positioning column 503 on one side of the connecting piece 502 passes through the secondary beam 3 and the circular through hole on the connecting piece 502 on the other side, it hits the two unlocking rods 609 on the side of each limiting block 602 and slides toward the outside of the limiting block 602. The unlocking rods 609 on both sides slide and push the unlocking block 611 to slide outward. The unlocking block 611 slides outward and stretches the reset spring 610. The unlocking block 611 at the upper end slides outward and pushes the upper unlocking plate 608 to move upward. The unlocking block 611 at the lower end slides outward and pushes the lower unlocking plate 608 to move downward. The two unlocking plates 608 move upward at one end and the lower ends drive one end of the locking plate 607 to move upward. The two ends of the locking plate 607 move upward and downward, and one end of the locking plate 607 moves upward and downward to stretch the locking spring 606. Under the action of the rotating shaft in the middle of the locking plate 607, one end of the locking plate 607 moves upward and downward to drive the other end of the locking plate 607 to move toward each other. The other ends of the two locking plates 607 move toward each other so that the other end of the locking plate 607 is out of contact with the L-shaped groove on the side of the limit block 602, so that the L-shaped groove on the side of the limit block 602 releases the restriction on the limit block 602, and the limit spring 604 releases the pressure to push the two limit blocks 602 to slide toward each other. The two limit blocks 602 slide toward each other and are stuck in the circular ring groove at the end of the positioning column 503. At this time, the limiting mechanism 6 locks the position of the positioning mechanism 5, which simplifies the construction and installation steps.
[0031] When the limit mechanism 6 releases the position lock of the positioning mechanism 5, the two unlocking handles 605 are pushed outward in the opposite direction. The two unlocking handles 605 slide in the opposite direction to drive the two limit blocks 602 to slide in the opposite direction. The two limit blocks 602 slide in the opposite direction to squeeze the limit spring 604. The two unlocking rods 609 are reset under the action of the reset spring 610, and the locking spring 606 shrinks and resets, pulling one end of the two locking plates 607 to move toward each other. Under the action of the rotating shaft in the middle of the locking plate 607, the other ends of the two locking plates 607 move in the opposite direction. The two locking plates 607 move in the opposite direction so that the locking plates 607 are stuck in the L-shaped sliding groove on the side of the limit block 602. At this time, the locking plate 607 locks the position of the limit block 602, and the limit block 602 is out of contact with the circular ring groove at the end of the positioning column 503, and the limit mechanism 6 releases the position lock of the positioning mechanism 5.
[0032] When the position restriction of the secondary beam 3 by the positioning mechanism 5 is released, the limit block 602 is out of contact with the circular ring groove at the end of the positioning column 503, and the positioning spring 506 contracts to pull the two positioning blocks 505 to slide toward each other. The two positioning blocks 505 slide toward each other and drive one end of the two linkage rods 507 to slide toward each other. Under the action of the middle shaft of the linkage rod 507, one end of the two linkage rods 507 slides toward each other and drives the other end of the two linkage rods 507 to slide toward each other. The other end of the two linkage rods 507 slides toward each other and drives one end of the two synchronization rods 509 to slide toward each other. Under the action of the middle shaft of the synchronization rod 509, one end of the two synchronization rods 509 slides toward each other and drives the other end of the two synchronization rods 509 to slide toward each other. The other end of the two synchronization rods 509 slides toward each other and drives the two synchronization blocks 508 to slide toward each other. The two synchronization blocks 508 slide toward each other and pull the other side connecting member 502 to slide outward. The two connecting members 502 slide in the opposite direction and lose contact with the secondary beam 3. At this time, the positioning mechanism 5 releases the position restriction of the secondary beam 3.
[0033] A construction process for a primary and secondary beam connection structure of an assembled steel structure building, comprising the following steps: S1. First, fix a supporting beam 4 on the lower surface of the main beam 1 by welding, and then use a crane to hoist the secondary beam 3 to the top of the supporting beam 4; S2. Use the positioning mechanism 5 to lock the position of the secondary beam 3. Push the positioning handle 504 on one side inward. The positioning handle 504 slides inward to drive the two connecting pieces 502 to slide toward each other to clamp the secondary beam 3. The two connecting pieces 502 slide toward each other to push the positioning column 503 to penetrate the secondary beam 3 and the connecting piece 502 on the other side. At this time, the positioning mechanism 5 locks the position of the secondary beam 3. S3, use the limiting mechanism 6 to lock the positioning mechanism 5, the positioning column 503 passes through the secondary beam 3 and the connecting piece 502 on the other side to hit the unlocking rods 609 on both sides, the unlocking rods 609 on both sides slide in the opposite direction to push the two locking plates 607 to move towards each other and disengage from the L-shaped grooves on the sides of the limiting blocks 602, and the limiting spring 604 releases the pressure to push the two limiting blocks 602 into the circular ring grooves at the ends of the positioning column 503, and at this time the limiting mechanism 6 locks the position of the positioning mechanism 5; S4. The connecting plate 2 is locked and connected with the main beam 1 and the secondary beam 3 by means of the fixing bolts 201 and the locking nuts 202. At this time, the main beam 1 and the secondary beam 3 are installed. S5. When the connection node between the main beam 1 and the secondary beam 3 is worn, first release the lock of the positioning mechanism 5 by the limiting mechanism 6, and then release the position restriction of the secondary beam 3 by the positioning mechanism 5. At this time, remove the fixing bolts 201, anti-loosening nuts 202, and connecting parts 502 above the main beam 1 and the secondary beam 3, and then replace the secondary beam 3.
[0034] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.
Claims
1. A primary and secondary beam connection structure of an assembled steel structure building, characterized in that: The invention comprises a main beam (1), wherein the cross section of the main beam (1) is an I-shape, a connecting plate (2) is arranged on the upper surface of the main beam (1), a supporting beam (4) is arranged on the lower surface of the main beam (1), two positioning mechanisms (5) are arranged on the side of the main beam (1), a limiting mechanism (6) is arranged on the side of the positioning mechanism (5), a secondary beam (3) is arranged on the side of the main beam (1) and located between the two positioning mechanisms (5), the positioning mechanism (5) comprises two guide rails (501), the cross section of the guide rails (501) is T-shaped, the guide rails (501) are fixedly connected to the main beam (1), the outer sides of the two guide rails (501) are slidably connected to two connecting members (502), the cross section of the connecting member (502) is L-shaped, and one end of the connecting member (502) is fixedly connected to a positioning handle (504).
2. The primary and secondary beam connection structure of an assembled steel structure building according to claim 1, characterized in that: The positioning mechanism (5) further comprises eight positioning posts (503), each of four positioning posts (503) being fixedly connected to one of the connecting members (502), a circular annular groove being provided at the end of each positioning post (503), the end of each positioning post (503) being hemispherical, four circular through holes being provided at the side surface of one end of the connecting member (502), the positioning posts (503) on the side surface of one of the connecting members (502) being slidably connected in the circular through hole of another of the connecting members (502), square grooves being provided at the side surfaces of the two connecting members (502), and T-shaped sliding grooves being provided at the side surfaces of the square grooves.
3. The primary and secondary beam connection structure of an assembled steel structure building according to claim 2 is characterized in that: The positioning mechanism (5) further comprises four positioning blocks (505), each having a T-shaped cross section. The positioning blocks (505) are slidably connected in the T-shaped slide groove of the connecting member (502). Two positioning blocks (505) in the same T-shaped slide groove are fixedly connected with positioning springs (506) on opposite sides. The upper surface of the positioning block (505) is rotatably connected with a linkage rod (507) via a rotating shaft. The middle parts of the two linkage rods (507) are rotatably connected via a rotating shaft. The other end of the linkage rod (507) is rotatably connected with a synchronization rod (509) via a rotating shaft. The middle parts of the two synchronization rods (509) are rotatably connected via a rotating shaft. The other end of the synchronization rod (509) is rotatably connected with a synchronization block (508) via a rotating shaft. The cross section of the synchronization block (508) is square.
4. The primary and secondary beam connection structure of an assembled steel structure building according to claim 3 is characterized in that: The limiting mechanism (6) comprises two slide rails (601), the cross section of the slide rails (601) is L-shaped, the slide rails (601) are symmetrically fixedly connected to the side of the connecting member (502), the opposite sides of the two slide rails (601) are slidably connected to two limiting blocks (602), the opposite sides of the two limiting blocks (602) are provided with four square sliding grooves, the outer side of the limiting block (602) is fixedly connected to the unlocking handle (605), the other side of the limiting block (602) is provided with two circular holes, the limiting springs (604) are fixedly connected in the circular holes, the other end of the limiting spring (604) is fixedly connected to the limiting plate (603), and the limiting plate (603) is fixedly connected to the side of one end of the connecting member (502).
5. The primary and secondary beam connection structure of an assembled steel structure building according to claim 4 is characterized in that: The limiting mechanism (6) further comprises two locking plates (607), wherein the locking plates (607) are rotatably connected to the limiting plate (603) via a rotating shaft, two square through holes are provided on the side of the limiting plate (603), and the locking plates (607) are rotatably connected in the square through holes, and a cross section of one end of the locking plates (607) is a right triangle, and locking springs (606) are fixedly connected to opposite sides of the two locking plates (607), and two L-shaped sliding grooves are further provided on the side of the limiting block (602), and an unlocking plate (608) is fixedly connected to the other end of the locking plate (607).
6. The primary and secondary beam connection structure of a prefabricated steel structure building according to claim 5, characterized in that: The limiting mechanism (6) further comprises an unlocking rod (609), wherein the unlocking rod (609) is slidably connected to the limiting block (602) and the limiting plate (603); one end of the unlocking rod (609) is hemispherical; the other end of the unlocking rod (609) passes through the limiting plate (603) and the end is fixedly connected to an unlocking block (611); the cross-section of the unlocking block (611) is a right triangle; a return spring (610) is fixedly connected to the outside of the unlocking rod (609) and between the limiting plate (603) and the unlocking block (611); the other end of the unlocking plate (608) is provided with a square through hole, and the unlocking block (611) is slidably connected in the square through hole.
7. The primary and secondary beam connection structure of an assembled steel structure building according to claim 6, characterized in that: The upper surfaces of the main beam (1) and the secondary beam (3) are provided with circular through holes, in which anti-loosening nuts (202) are slidably connected, the inner side of the anti-loosening nuts (202) is rotatably connected to fixing bolts (201) through threads, and the outer side of the fixing bolts (201) is slidably connected to the connecting plate (2), and the cross section of the connecting plate (2) is T-shaped.
8. The primary and secondary beam connection structure of a prefabricated steel structure building according to claim 7, characterized in that: The support beam (4) is fixed to the lower surface of the main beam (1) by welding, and the cross section of the support beam (4) is triangular.
9. The primary and secondary beam connection structure of an assembled steel structure building according to claim 8, characterized in that: The other end of the connecting member (502) is slidably connected to the secondary beam (3), the cross section of the secondary beam (3) is an I-shape, eight circular through holes are opened at the end of the secondary beam (3), and the positioning column (503) is slidably connected in the circular through holes.
10. The construction process of the primary and secondary beam connection structure of an assembled steel structure building according to claim 9, characterized in that: The following steps are involved: S1, first fixing a supporting beam (4) on the lower surface of the main beam (1) by welding, and then using a crane to hoist the secondary beam (3) to the top of the supporting beam (4); S2, using the positioning mechanism (5) to lock the position of the secondary beam (3), pushing the positioning handle (504) on one side inward, the positioning handle (504) slides inward to drive the two connecting members (502) to slide towards each other to clamp the secondary beam (3), the two connecting members (502) slide towards each other to push the positioning column (503) to penetrate the secondary beam (3) and the connecting member (502) on the other side, at this time, the positioning mechanism (5) locks the position of the secondary beam (3); S3, using the limiting mechanism (6) to lock the positioning mechanism (5), the positioning column (503) passes through the secondary beam (3) and hits the unlocking rods (609) on both sides with the connecting piece (502) on the other side, the unlocking rods (609) on both sides slide in the opposite direction to push the two locking plates (607) to move towards each other and disengage from the L-shaped grooves on the sides of the limiting blocks (602), the limiting spring (604) releases the pressure to push the two limiting blocks (602) into the circular annular grooves at the ends of the positioning column (503), and at this time, the limiting mechanism (6) locks the position of the positioning mechanism (5); S4, locking and connecting the connecting plate (2) with the main beam (1) and the secondary beam (3) by means of the fixing bolts (201) and the locking nuts (202), whereby the installation of the main beam (1) and the secondary beam (3) is completed; S5. When the connection node between the main beam (1) and the secondary beam (3) is worn, first release the locking of the positioning mechanism (5) by the limiting mechanism (6), and then release the position restriction of the secondary beam (3) by the positioning mechanism (5). At this time, remove the fixing bolts (201), the anti-loosening nuts (202), and the connecting piece (502) above the main beam (1) and the secondary beam (3), and then replace the secondary beam (3).