Fabricated building structure performance test platform and test method thereof

Abstract

The invention relates to the technical field of assembly type building tests, and discloses an assembly type building structure performance test platform and a test method thereof.The assembly type building structure performance test platform comprises a bottom plate, a lower wall body and an upper wall body, and the bottom plate and the lower wall body are movably connected and fixed through a connecting mechanism. During an experiment, a plurality of hoisting rings are used for hoisting an upper wall body to a position above a lower wall body, a lifting motor drives a screw rod to rotate to enable a concentric-square-shaped plate and the like to ascend, and then a guide plate is overturned to an inclined state through gear and rack transmission, so that a first through hole of the upper wall body is conveniently aligned with an upper reinforcing steel bar. In the descending process of the upper wall body, the upper steel bar extends to the grouting cavity to make contact with the extrusion plate, when the upper wall body is attached to the annular plate, the sensor prompts that connection is in place, hoisting is relieved, and the quality of the upper wall body is measured. Then the electric cylinder drives the upper wall body and the like to descend, and the length of the upper steel bar in the grouting cavity is calculated according to initial and descending data of the upper steel bar. And finally, concrete mortar is poured from the grouting holes, and the connection stability of the wall is enhanced after solidification.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated building test, and more specifically to a test platform for the structural performance of prefabricated buildings and a test method thereof. Background Art

[0002] A prefabricated building refers to a building assembled on-site with prefabricated components. The construction method of this kind of building is similar to building with blocks. Components such as beams, slabs, columns, and walls pre-produced in the factory are transported to the construction site and assembled through reliable connection methods to form a complete building.

[0003] The structural safety of prefabricated buildings is of crucial importance. Through repeated tests, such as static load and dynamic load tests on prefabricated components, the mechanical properties under various load conditions can be verified, ensuring that the components will not be damaged due to stress during use, guaranteeing the stability and safety of the building structure, and ensuring that the materials meet the design requirements.

[0004] Currently, during the test process, a hoisting device is used to lift the wall to a suitable position, and then workers manually dock the prefabricated components to complete the connection and testing. However, there are significant safety hazards when workers assist in docking during the hoisting of the wall. Once the rope breaks or the wall topples, it is extremely easy to cause harm to the workers. Therefore, there is an urgent need to design a test device with an automatic docking function to improve the safety and efficiency of the test. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a test platform for the structural performance of prefabricated buildings and a test method thereof to solve the problems existing in the above-mentioned background art.

[0006] The present invention provides the following technical solution: A test platform for the structural performance of prefabricated buildings includes a bottom plate, a lower wall body, and an upper wall body. The bottom plate is movably connected to the lower wall body and fixed through a connection mechanism. The connection mechanism is used to support the lower wall body. An ascending and descending cavity is opened inside the lower wall body. Three sliding holes are opened at the top of the ascending and descending cavity. Three upper steel bars are slidably installed in the three sliding holes. The bottom ends of the three upper steel bars all extend into the ascending and descending cavity and are connected to a quality inspection mechanism. Three grouting cavities are opened inside the upper wall body. In the three grouting cavities, in-place detection mechanisms adapted to the three upper steel bars are respectively arranged. A return groove is opened at the bottom of the ascending and descending cavity. A plurality of rectangular sliding holes are opened on the side inner wall of the return groove. A plurality of lifting blocks are slidably installed in the plurality of rectangular sliding holes through a lifting mechanism. The sides of the plurality of lifting blocks are all installed with lifting plates through a detachable mechanism. Guide mechanisms are arranged on the tops of the plurality of lifting plates. The plurality of guide mechanisms enable the upper wall body to automatically align with the lower wall body when moving downward.

[0007] Further, the connecting mechanism includes a plurality of lower steel bars. A plurality of lower steel bar grooves are formed in the top of the bottom plate. The lower parts of the plurality of lower steel bars are respectively fixedly arranged in the plurality of lower steel bar grooves. A plurality of upper steel bar grooves are formed in the bottom of the lower wall body. The upper parts of the plurality of lower steel bars respectively extend into the plurality of upper steel bar grooves. Two U-shaped blocks are fixedly installed on both the top of the bottom plate and the side of the lower wall body. Mounting shafts are fixedly installed on the two U-shaped blocks located on the bottom plate. Support rods are rotatably installed on the two mounting shafts. Mounting holes are formed in the two U-shaped blocks located on the lower wall body. Fixing bolts are respectively inserted into the mounting holes of the U-shaped blocks on the lower wall body. Nuts are threadedly installed on the fixing bolts. The upper end of the support rod is rotatably connected to the corresponding fixing bolt.

[0008] Further, the quality inspection mechanism includes a weighing plate. A plurality of mounting grooves are formed in the bottom of the lifting cavity. Electric cylinders are fixedly installed in the plurality of mounting grooves. The movable ends of the plurality of electric cylinders are fixedly connected to the bottom of the weighing plate. A rectangular plate is fixedly installed on the top of the weighing plate. The top of the rectangular plate is fixedly connected to the bottom ends of the plurality of upper steel bars.

[0009] Further, the in-place detection mechanism includes an upper inductor and a lower inductor. An annular plate is fixedly installed on the top of the grouting cavity. An upper induction groove is formed in the bottom end of the annular plate. The upper inductor is fixedly installed in the upper induction groove. A sliding cavity is formed in the upper wall body. A sliding shaft is slidably installed in the annular plate. The top end of the sliding shaft extends into the sliding cavity and is fixedly installed with a limiting plate. The bottom end of the sliding shaft extends into the grouting cavity and is fixedly installed with a pressing plate. A lower induction groove is formed in the top of the pressing plate. The lower inductor is fixedly installed in the lower induction groove. A first through hole is formed in the bottom of the grouting cavity. The upper steel bar extends into the grouting cavity through the first through hole and abuts against the bottom of the pressing plate.

[0010] Further, two connecting columns are fixedly installed on the top of the lower wall body. A plurality of fixing holes are arranged on the outer circumferential walls of the two connecting columns. Two connecting cavities are formed in the upper wall body. Second through holes are formed in the bottom ends of the two connecting cavities. The two connecting columns respectively pass through the two second through holes and extend into the two connecting cavities. A grouting hole is formed in the top end of one of the connecting cavities. The plurality of grouting cavities and the plurality of connecting cavities are connected through communication holes. A plurality of lifting rings are fixedly arranged on the top of the upper wall body.

[0011] Further, the lifting mechanism includes a U-shaped plate which is slidably arranged in a U-shaped groove. Four screw rods are rotatably installed on the bottom inner wall of the U-shaped groove, and the screw rods are threadedly connected to the U-shaped plate. The top ends of the four screw rods are rotatably installed on the top inner wall of the lifting cavity. Each adjacent two of the screw rods are connected by a transmission component. The transmission component includes two first synchronous belt wheels which are respectively fixedly sleeved on two of the screw rods. The two first synchronous belt wheels are connected by a first synchronous belt. A motor groove is formed in the bottom of the U-shaped groove, and a lifting motor for driving one of the screw rods to rotate is fixedly installed in the motor groove.

[0012] Further, the detachable mechanism includes a connecting bolt. Two pin posts are fixedly installed on the side of the lifting plate. Two pin slots are formed in the side of the lifting block. The two pin posts respectively extend into the two pin slots. A threaded groove is formed in the side of the lifting block. The connecting bolt slidably passes through the lifting plate and then extends into the threaded hole and is threadedly connected to the lifting block.

[0013] Further, the guiding mechanism includes a guiding plate. A flipping groove is formed in the top of the lifting plate. A square groove is formed in the bottom of the lifting plate. A rectangular groove is formed in the lifting plate between the flipping groove and the square groove. A rotating shaft is rotatably installed in the flipping groove. One end of the rotating shaft extends into the rectangular groove. The guiding plate is fixedly sleeved on the rotating shaft. A control component for driving the rotating shaft to rotate is arranged in the square groove.

[0014] Further, the control component includes a transmission shaft which is rotatably installed in the square groove. One end of the transmission shaft extends into the rectangular groove. Second synchronous belt wheels are fixedly sleeved on both the transmission shaft and the rotating shaft. The two second synchronous belt wheels are connected by a second synchronous belt. A transmission gear is fixedly installed on the transmission shaft. A straight rack is fixedly installed on the side of the lower wall body. The straight rack is meshed with the transmission gear. An avoidance groove adapted to the straight rack is formed in one side of the square groove.

[0015] A test method for the above-mentioned test platform for the structural performance of prefabricated buildings, characterized by comprising the following steps: S1. Guide and install the lower wall body on the top of the bottom plate through a plurality of lower steel bars. Flip the two support rods so that their upper ends are respectively placed in the U-shaped blocks on the side of the lower wall body and fix them with fixing bolts; S2. Hoist the upper wall body above the lower wall body. The lifting motor drives the screw rod to rotate, causing the clip plate, lifting block, and lifting plate to move synchronously. When the lifting plate reaches the appropriate position, the transmission gear meshes with the straight rack to drive the transmission shaft to rotate, and then the guide plate is flipped to an inclined state. When the upper wall body moves downward, through the guiding action of multiple guide plates, the first through hole at its bottom is aligned with the upper steel bar. S3. When the upper wall body continues to move downward, the upper steel bar passes through the first through hole and extends into the grouting cavity and contacts the extrusion plate. When the upper wall body and the annular plate continue to descend until the annular plate fits with the extrusion plate, the upper sensor and the lower sensor contact to send an electrical signal indicating that the connection between the upper steel bar and the upper wall body is in place, and then the hoisting is released. The weight of the upper wall body is measured using the weighing plate. S4. After monitoring the quality data of the upper wall body, drive the rectangular plate, upper steel bar, and upper wall body to move downward synchronously through multiple electric cylinders until the upper wall body falls onto the top of the lower wall body. Denote the initial length of the upper steel bar extending out of the lower wall body as x, and the distance that the electric cylinder drives the upper steel bar to descend as y. Thus, the length of the upper steel bar extending into the grouting cavity is calculated as x - y. S5. Pour the concrete mortar into the connection cavity through the grouting hole. Utilize its fluidity to make it flow into the grouting cavity through the communication hole. After solidification, it is connected to the upper steel bar. At the same time, the concrete mortar will flow into the fixing holes of the connecting columns and be connected to the connecting columns after solidification, enhancing the stability of the wall body after connection.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: 1. By hoisting the upper wall body above the lower wall body, the lifting motor drives the screw rod to rotate, causing the clip plate, lifting block, and lifting plate to move upward synchronously. When the lifting plate reaches the appropriate position, the transmission gear meshes with the straight rack to drive the transmission shaft to rotate, and then the guide plate is flipped to an inclined state. When the upper wall body moves downward, through the guiding action of multiple guide plates, the first through hole at its bottom is aligned with the upper steel bar. With this setting, the upper wall body and the lower wall body can be automatically aligned without the need for staff assistance, improving the safety performance.

[0017] 2. When the upper wall body continues to move downward, the upper steel bar passes through the first through hole and extends into the grouting cavity and contacts the extrusion plate. When the upper wall body and the annular plate continue to descend until the annular plate fits with the extrusion plate, the upper sensor and the lower sensor contact to send an electrical signal indicating that the connection between the upper steel bar and the upper wall body is in place, and then the hoisting is released. The weight of the upper wall body is measured using the weighing plate.

[0018] 3. After the monitoring of the quality data of the upper wall is completed, the rectangular plate, the upper steel bar, and the upper wall are driven to move downward synchronously by multiple electric cylinders until the upper wall falls to the top of the lower wall. Denote the initial length of the upper steel bar extending out of the lower wall as x, and the distance that the electric cylinder drives the upper steel bar to descend as y. Thus, the length of the upper steel bar extending into the grouting cavity is calculated as x - y. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of this embodiment; Figure 2 is a schematic structural diagram of a partial section of the side cover in this embodiment; Figure 3 is Figure 2 an enlarged structural diagram at A in Figure 4 is a schematic structural diagram of a partial section of the lower wall and the return plate in this embodiment; Figure 5 is Figure 4 an enlarged structural diagram at B in Figure 6 is a schematic structural diagram of a partial section of the upper wall, the annular plate, and the extrusion plate in this embodiment; Figure 7 is Figure 6 an enlarged structural diagram at C in Figure 8 is a schematic structural diagram of a partial section of the lower wall and the lifting block in this embodiment; Figure 9 is Figure 8 an enlarged structural diagram at D in Figure 10 is a schematic structural diagram of a partial section of the lifting plate in this embodiment; Figure 11 is Figure 10 an enlarged structural diagram at E in Figure 12 is Figure 10 an enlarged structural diagram at F in Figure 13 is a schematic enlarged structural diagram of a partial section of the lifting plate and the lifting block in this embodiment; Figure 14 is Figure 13 an enlarged structural diagram at G in

[0020] The reference numerals are: 1, bottom plate; 2, lower wall body; 3, upper wall body; 4, guide plate; 5, lower steel bar; 6, U-shaped block; 7, mounting shaft; 8, support rod; 9, fixing bolt; 10, lifting cavity; 11, upper steel bar; 12, rectangular plate; 13, electric cylinder; 14, weighing plate; 15, grouting cavity; 16, annular plate; 17, upper inductor; 18, sliding cavity; 19, sliding shaft; 20, limiting plate; 21, extrusion plate; 22, lower inductor; 23, connecting column; 24, connecting cavity; 25, grouting hole; 26, communication hole; 27, lifting ring; 28, rectangular sliding hole; 29, lifting block; 30, return groove; 31, screw rod; 32, first synchronous pulley; 33, first synchronous belt; 34, lifting motor; 35, return plate; 36, lifting plate; 37, rectangular groove; 38, rotating shaft; 40, square groove; 41, transmission shaft; 42, second synchronous pulley; 43, second synchronous belt; 44, transmission gear; 45, straight rack; 46, avoidance groove; 47, pin column; 48, connecting bolt; 49, PLC controller; 50, side cover. Specific embodiments

[0021] The present invention will be further described below in conjunction with specific embodiments. However, those skilled in the art should understand that the detailed description given here in conjunction with the accompanying drawings is for better explanation. The structure of the present invention necessarily goes beyond these limited embodiments, and for some equivalent replacement schemes or common means, no detailed description will be given herein, but they still fall within the protection scope of the present application.

[0022] Figures 1 - 14 This is the best embodiment of the present invention. The following will further describe the present invention in conjunction with the attached Figures 1 - 14 drawings.

[0023] Refer to the attached Figure 1 - attached Figure 14 drawings. A performance test platform for an assembled building structure includes a bottom plate 1, a lower wall body 2, and an upper wall body 3. The bottom plate 1 is movably connected to the lower wall body 2 and fixed by a connecting mechanism. The connecting mechanism is used to support the lower wall body 2. A lifting cavity 10 is provided inside the lower wall body 2. The top of the lifting cavity 10 is provided with three sliding holes penetrating the lower wall body 2. Three upper steel bars 11 are slidably installed in the three sliding holes. The bottom ends of the three upper steel bars 11 all extend into the lifting cavity 10 and are connected with a quality detection mechanism. Three grouting cavities 15 are provided inside the upper wall body 3. In-place detection mechanisms adapted to the three upper steel bars 11 are respectively provided in the three grouting cavities 15. A return groove 30 is provided at the bottom of the lifting cavity 10. A plurality of rectangular sliding holes 28 are provided on the side of the return groove 30. A plurality of lifting blocks 29 are slidably installed in the plurality of rectangular sliding holes 28 through a lifting mechanism. The sides of the plurality of lifting blocks 29 are all installed with lifting plates 36 through a detachable mechanism. Guide mechanisms are provided at the tops of the plurality of lifting plates 36. The plurality of guide mechanisms enable the upper wall body 3 to automatically align with the lower wall body 2 when moving downward.

[0024] Specifically, equipment slots are provided on the side of the lower wall body 2, and a PLC controller 49 is fixedly installed in the equipment slots. The PLC controller 49 is a prior art, and its specific installation method and working principle will not be elaborated here. A wireless transmission module is provided on the PLC controller 49, and it can be connected to a computer through the wireless transmission module. Specifically, the wireless transmission module can be a Bluetooth transmission module or a wifi module, both of which are prior arts, and the specific transmission method will not be elaborated here. A side cover 50 is detachably installed on the side of the lower wall body 2 for protecting the PLC controller 49.

[0025] Such as Figure 2 and Figure 3 As shown, the connecting mechanism includes a plurality of lower steel bars 5. A plurality of lower steel bar slots are provided at the top of the bottom plate 1, and the lower parts of the plurality of lower steel bars 5 are respectively fixedly arranged in the plurality of lower steel bar slots. A plurality of upper steel bar slots are provided at the bottom of the lower wall body 2, and the upper parts of the plurality of lower steel bars 5 respectively extend into the plurality of upper steel bar slots. Two U-shaped blocks 6 are fixedly installed on the top of the bottom plate 1 and the side of the lower wall body 2. Mounting shafts 7 are fixedly installed on the two U-shaped blocks 6 located on the bottom plate 1. A support rod 8 is arranged between the two corresponding U-shaped blocks 6 on the bottom plate 1 and the lower wall body 2. The lower end of the support rod 8 is rotatably connected to the corresponding mounting shaft 7. Mounting holes are provided on the two U-shaped blocks 6 located on the lower wall body 2, and fixing bolts 9 are respectively inserted into the mounting holes of each U-shaped block 6 on the lower wall body 2. Nuts are threadedly installed on each fixing bolt 9, and the upper end of the support rod 8 is rotatably connected to the corresponding fixing bolt 9.

[0026] In this implementation scheme, through the guiding and cooperating action of the plurality of lower steel bars 5 and the plurality of lower steel bar slots, the lower wall body 2 can be positioned, and by fixing and limiting the lower wall body 2 with the plurality of support rods 8, the lower wall body 2 can be more stable after being placed.

[0027] Such as Figure 4 and Figure 5 As shown, the quality inspection mechanism includes a weighing plate 14. Specifically, the weighing plate 14 is a prior art, and its specific installation method and working principle can refer to the technical content in a weight sensor disclosed in the utility model patent CN205228599U. A plurality of installation slots are provided at the bottom of the lifting cavity 10, and electric cylinders 13 are fixedly installed in the plurality of installation slots. Specifically, the electric cylinders 13 can be controlled by a hydraulic station and a solenoid valve connected to the PLC controller 49. The movable ends of the plurality of electric cylinders 13 are fixedly connected to the bottom of the weighing plate 14. A rectangular plate 12 is fixedly installed on the top of the weighing plate 14, and the top of the rectangular plate 12 is fixedly connected to the bottom ends of the plurality of upper steel bars 11. A wire passing hole for the cables of the electric cylinders 13 is provided on the lower wall body 2.

[0028] In this implementation, after the hoisting of the upper wall 3 is released, the mass of the upper wall 3 is detected by the weighing plate 14. The electric cylinder 13 drives the weighing plate 14 and the rectangular plate 12 to move downward, and the length of the upper steel bar 11 extending into the grouting cavity 15 can be measured.

[0029] As Figure 6 and Figure 7 shown, the in-place detection mechanism includes an upper sensor 17 and a lower sensor 22. Specifically, both the upper sensor 17 and the lower sensor 22 are prior arts, and their specific working principles will not be elaborated here. Moreover, both the upper sensor 17 and the lower sensor 22 are electrically connected to the PLC controller 49. A circular plate 16 is fixedly installed at the top of the grouting cavity 15. An upper induction groove is opened at the bottom end of the circular plate 16, and the upper sensor 17 is fixedly installed in the upper induction groove. A sliding cavity 18 is opened in the upper wall 3. A sliding shaft 19 is slidably installed in the circular plate 16. The top end of the sliding shaft 19 extends into the sliding cavity 18 and is fixedly installed with a limiting plate 20. The limiting plate 20 and the sliding cavity 18 can slide relative to each other, and an upper balance port is provided on the limiting plate 20. The bottom end of the sliding shaft 19 extends into the grouting cavity 15 and is fixedly installed with a pressing plate 21. A lower induction groove is opened at the top of the pressing plate 21, and the lower sensor 22 is fixedly installed in the lower induction groove. A first through hole is opened at the bottom of the grouting cavity 15. The upper steel bar 11 extends into the grouting cavity 15 through the first through hole and abuts against the bottom of the pressing plate 21. In this embodiment, the upper sensor 17 and the lower sensor 22 can adopt photoelectric sensors.

[0030] In this implementation, after the upper steel bar 11 contacts the pressing plate 21, it plays a limiting role on the pressing plate 21. When the upper wall 3 continues to move downward, it can drive the circular plate 16 and the upper sensor 17 to move downward synchronously until they contact the lower sensor 22, thereby transmitting an electrical signal to the PLC controller 49 to indicate that the connection between the upper steel bar 11 and the upper wall 3 is in place.

[0031] As Figure 6 shown, two connecting columns 23 are fixedly installed at the top of the lower wall 2. A plurality of fixing holes are provided on the outer circumferential walls of the two connecting columns 23. Two connecting cavities 24 are opened in the upper wall 3. Second through holes are opened at the bottom ends of the two connecting cavities 24. The two connecting columns 23 respectively extend into the two connecting cavities 24 through the two second through holes. A grouting hole 25 is opened at the top end of one of the connecting cavities 24. A plurality of grouting cavities 15 and a plurality of connecting cavities 24 are connected through communication holes 26. A plurality of lifting rings 27 are fixedly arranged at the top of the upper wall 3.

[0032] In this implementation, by pouring concrete mortar into the grouting hole 25, due to its fluidity, the concrete mortar flows into the grouting cavity 15 and the fixing holes, and after solidification, the stability of the upper wall 3 and the lower wall 2 is improved.

[0033] As Figure 8 and Figure 9 shown, the lifting mechanism includes a U-shaped plate 35 which is slidably arranged in a U-shaped groove 30. Four screw rods 31 are rotatably installed at the bottom of the U-shaped groove 30. The screw rods 31 are in threaded connection with the U-shaped plate 35. The tops of the four screw rods 31 are all rotatably installed on the lifting cavity 10. Each adjacent pair of screw rods 31 is connected by a transmission component. The transmission component includes two first synchronous belt wheels 32 which are respectively fixedly sleeved outside the adjacent two screw rods 31. The two first synchronous belt wheels 32 are connected by a first synchronous belt 33. A motor groove is formed at the bottom of the U-shaped groove 30. A lifting motor 34 for driving one of the screw rods 31 to rotate is fixedly installed in the motor groove. Specifically, the lifting motor 34 can be controlled by a PLC controller 49.

[0034] In this embodiment, the lifting motor 34 drives one of the screw rods 31 to rotate. Then, under the meshing action of multiple first synchronous belt wheels 32 and multiple first synchronous belts 33, the other three screw rods 31 are driven to rotate synchronously, so that the U-shaped plate 35 moves upward under the action of the thread. The whole lifting process is relatively stable, avoiding the phenomenon of jamming.

[0035] As Figure 13 and Figure 14 shown, the detachable mechanism includes a connecting bolt 48. Two pin posts 47 are fixedly installed on the side of the lifting plate 36. Two pin slots are formed on the side of the lifting block 29. The two pin posts 47 respectively extend into the two pin slots. A threaded hole is formed on the side of the lifting block 29. The connecting bolt 48 slidably passes through the lifting plate 36 and then extends into the threaded hole and is in threaded connection with the lifting block 29.

[0036] In this embodiment, through the pin connection function of the two pin posts 47 and the pin slots, the lifting plate 36 can be positioned. Then, through the connection function of the connecting bolt 48, the connection function between the lifting plate 36 and the lifting block 29 can be realized.

[0037] As Figure 10 and Figure 11 shown, the guiding mechanism includes a guiding plate 4. A flipping groove is formed at the top of the lifting plate 36. A square groove 40 is formed at the bottom of the lifting plate 36. A rectangular groove 37 is formed on the lifting plate 36 between the flipping groove and the square groove 40. A rotating shaft 38 is rotatably installed in the flipping groove. One end of the rotating shaft 38 extends into the rectangular groove 37. The guiding plate 4 is fixedly sleeved on the rotating shaft 38. A control component for driving the rotating shaft 38 to rotate is arranged in the square groove 40.

[0038] In this embodiment, through the arrangement of the guiding plate 4, after it is flipped to a certain angle, it guides the upper wall body 3 being hoisted through its inclined surface, so that the first through hole at its lower part is aligned with the upper steel bar 11.

[0039] As Figure 10 , Figure 11 and Figure 12 shown, the control component includes a transmission shaft 41, which is rotatably installed in the square groove 40. One end of the transmission shaft 41 extends into the rectangular groove 37. Second synchronous pulleys 42 are fixedly sleeved outside the transmission shaft 41 and the rotating shaft 38. The two second synchronous pulleys 42 are connected by a second synchronous belt 43. A transmission gear 44 is fixedly installed on the transmission shaft 41. A straight rack 45 is fixedly installed on the side of the lower wall 2. The straight rack 45 is meshed and installed with the transmission gear 44. An avoidance groove 46 adapted to the straight rack 45 is opened on one side of the square groove 40.

[0040] In this implementation scheme, when the lifting plate 36 moves upward, it can drive the transmission gear 44 to move upward synchronously. When it meshes with the straight rack 45, it drives the transmission shaft 41 to rotate synchronously. Then, under the meshing action of the two second synchronous pulleys 42 and the second synchronous belt 43, the rotating shaft 38 and the guide plate 4 are driven to rotate a certain angle synchronously, realizing the guiding and limiting function for the upper wall 3.

[0041] A test method for a test platform of an assembled building structure performance includes the following steps: S1. Guide and install the lower wall 2 on the top of the bottom plate 1 through a plurality of lower steel bars 5. Flip the two support rods 8 so that their upper ends are respectively placed in the U-shaped blocks 6 on the side of the lower wall 2 and fix them with fixing bolts 9; S2. Lift the upper wall 3 to above the lower wall 2. The lifting motor 34 drives the screw rod 31 to rotate, so that the loop-shaped plate 35, the lifting block 29 and the lifting plate 36 move synchronously. When the lifting plate 36 reaches an appropriate position, drive the transmission shaft 41 to rotate through the meshing action of the transmission gear 44 and the straight rack 45. Then, turn the guide plate 4 to an inclined state, so that when the upper wall 3 moves downward, through the guiding action of a plurality of guide plates 4, the first through hole at its bottom is aligned with the upper steel bar 11; S3. When the upper wall 3 continues to move downward, the upper steel bar 11 passes through the first through hole and extends into the grouting cavity 15 and contacts the extrusion plate 21. When the upper wall 3 and the annular plate 16 continue to descend until the annular plate 16 fits with the extrusion plate 21, the upper inductor 17 and the lower inductor 22 contact and send an electrical signal to indicate that the upper steel bar 11 is connected to the upper wall 3 in place. Then, release the lifting, and use the weighing plate 14 to measure the mass of the upper wall 3; S4. After the quality data monitoring of the upper wall 3 is completed, drive the rectangular plate 12, the upper steel bar 11 and the upper wall 3 to move downward synchronously through a plurality of electric cylinders 13 until the upper wall 3 falls to the top of the lower wall 2. Record the initial length of the upper steel bar 11 extending out of the lower wall 2 as x, and record the distance that the electric cylinder 13 drives the upper steel bar 11 to descend as y, so as to calculate the length of the upper steel bar 11 extending into the grouting cavity 15 as x - y; S5. Pour the concrete mortar into the connection cavity 24 through the grouting hole 25. Utilize its fluidity to make it flow into the grouting cavity 15 through the communication hole 26. After solidification, it is connected to the upper steel bar 11. At the same time, the concrete mortar will flow into the fixing holes of the connecting column 23 and be connected to the connecting column 23 after solidification, enhancing the stability of the wall after connection.

[0042] The working principle and usage process of the present invention: During use, install the lower wall 2 on the top of the bottom plate 1 through the guidance of multiple lower steel bars 5, and flip the two support rods 8. Flip the upper ends of the two support rods 8 into the two U-shaped blocks 6 on the side of the lower wall 2 respectively, and use the two fixing bolts 9 to fix the support rods 8.

[0043] Lift and transport the upper wall 3 above the lower wall 2 through multiple lifting rings 27. The lifting motor 34 drives one of the screw rods 31 to rotate. Then, under the meshing action of multiple first synchronous belt wheels 32 and multiple first synchronous belts 33, drive the other three screw rods 31 to rotate synchronously, so that the loop-shaped plate 35 moves through the threaded action. When the loop-shaped plate 35 moves, it can drive multiple lifting blocks 29 and multiple lifting plates 36 to move synchronously. When the lifting plate 36 moves to an appropriate position, drive the transmission shaft 41 to rotate through the meshing action of the transmission gear 44 and the straight rack 45. Then, under the meshing action of two second synchronous belt wheels 42 and the second synchronous belt 43, drive the rotating shaft 38 and the guide plate 4 to flip a certain angle synchronously, so that multiple guide plates 4 are in an inclined state. When the upper wall 3 moves downward, through the extrusion action with the inclined surfaces of multiple guide plates 4, it can make multiple first through holes at the bottom of the upper wall 3 align with multiple upper steel bars 11.

[0044] The upper wall 3 continues to move downward, so that multiple upper steel bars 11 respectively extend into multiple grouting cavities 15 through multiple first through holes and are respectively in contact with multiple extrusion plates 21. When the upper wall 3 continues to move downward, through the extrusion action of the upper steel bars 11 on the extrusion plates 21, the extrusion plates 21, the sliding shafts 19, and the limiting plates 20 are kept in a static state. When the upper wall 3 and the annular plate 16 continue to move downward until the annular plate 16 fits with the extrusion plate 21, an electrical signal is emitted under the action of the upper inductor 17 and the lower inductor 22, thereby prompting the staff that the connection of the upper steel bar 11 and the upper wall 3 is in place. At this time, the lifting of the upper wall 3 is released, so that the upper wall 3 extrudes multiple upper steel bars 11, and thus measures the mass of the upper wall 3 through the weighing plate 14.

[0045] After the monitoring of the wall quality data is completed, multiple electric cylinders 13 drive the rectangular plate 12, multiple upper steel bars 11, and the upper wall 3 to move downward synchronously until the upper wall 3 falls to the top of the lower wall 2. Assuming that the length of the upper steel bar 11 extending outside the lower wall 2 is x at the initial time and the distance that the electric cylinder 13 drives the upper steel bar 11 to descend is y, then the length of the upper steel bar 11 extending into the grouting cavity 15 is x - y, thereby realizing the measurement of the length of the upper steel bar 11 extending into the grouting cavity 15.

[0046] Concrete mortar is poured into one of the connecting cavities 24 through the grouting hole 25. Due to the fluidity of the concrete mortar, it will flow into the grouting cavity 15 through the communication hole 26. After solidification and connection with the upper steel bar 11, the stability of the connection between the upper wall 3 and the lower wall 2 is improved. Moreover, the concrete mortar will flow into the fixing holes of the connecting column 23, and after solidification and connection with the connecting column 23, the stability of the wall after connection is further improved. In order to ensure the full flow of the concrete mortar, the upper wall 3 can be appropriately vibrated.

[0047] The above is only a preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An assembled building structure performance test platform, comprising a bottom plate (1), a lower wall body (2), and an upper wall body (3), characterized in that: The bottom plate (1) is movably connected to the lower wall (2) and fixed by a connection mechanism. The connection mechanism is used to support the lower wall (2). A lifting cavity (10) is formed in the lower wall (2). Three sliding holes are formed at the top of the lifting cavity (10). Upper steel bars (11) are slidably installed in the three sliding holes. The bottom ends of the three upper steel bars (11) extend into the lifting cavity (10) and are connected to a quality inspection mechanism. Three grouting cavities (15) are formed in the upper wall (3). In-place detection mechanisms adapted to the three upper steel bars (11) are respectively arranged in the three grouting cavities (15). A rectangular groove (30) is formed at the bottom of the lifting cavity (10). A plurality of rectangular sliding holes (28) are formed in the side inner wall of the rectangular groove (30). Lifting blocks (29) are slidably installed in the plurality of rectangular sliding holes (28) through a lifting mechanism. The sides of the plurality of lifting blocks (29) are respectively installed with lifting plates (36) through a detachable mechanism. Guide mechanisms are arranged at the tops of the plurality of lifting plates (36). The plurality of guide mechanisms enable the upper wall (3) to automatically align with the lower wall (2) when moving downward.

2. The performance test platform for an assembled building structure according to claim 1, wherein: The connection mechanism includes a plurality of lower steel bars (5). A plurality of lower steel bar grooves are formed at the top of the bottom plate (1). The lower parts of the plurality of lower steel bars (5) are respectively fixedly arranged in the plurality of lower steel bar grooves. A plurality of upper steel bar grooves are formed at the bottom of the lower wall (2). The upper parts of the plurality of lower steel bars (5) respectively extend into the plurality of upper steel bar grooves. Two U-shaped blocks (6) are fixedly installed on the top of the bottom plate (1) and the side of the lower wall (2). Mounting shafts (7) are fixedly installed on the two U-shaped blocks (6) located on the bottom plate (1). Support rods (8) are rotatably installed on the two mounting shafts (7). Mounting holes are formed in the two U-shaped blocks (6) located on the lower wall (2). Fixing bolts (9) are respectively inserted into the mounting holes of the U-shaped blocks (6) on the lower wall (2). Nuts are threadedly installed on the fixing bolts (9). The upper ends of the support rods (8) are rotatably connected to the corresponding fixing bolts (9).

3. The performance test platform for an assembled building structure according to claim 1, characterized in that: The quality inspection mechanism includes a weighing plate (14). A plurality of installation grooves are formed at the bottom of the lifting cavity (10). Electric cylinders (13) are fixedly installed in the plurality of installation grooves. The movable ends of the plurality of electric cylinders (13) are fixedly connected to the bottom of the weighing plate (14). A rectangular plate (12) is fixedly installed on the top of the weighing plate (14). The top of the rectangular plate (12) is fixedly connected to the bottom ends of the plurality of upper steel bars (11).

4. The performance test platform for an assembled building structure according to claim 1, wherein: The in-place detection mechanism includes an upper inductor (17) and a lower inductor (22). A ring plate (16) is fixedly installed at the top of the grouting cavity (15). An upper induction groove is formed at the bottom end of the ring plate (16). The upper inductor (17) is fixedly installed in the upper induction groove. A sliding cavity (18) is formed in the upper wall (3). A sliding shaft (19) is slidably installed in the ring plate (16). The top end of the sliding shaft (19) extends into the sliding cavity (18) and is fixedly installed with a limiting plate (20). The bottom end of the sliding shaft (19) extends into the grouting cavity (15) and is fixedly installed with a pressing plate (21). A lower induction groove is formed at the top of the pressing plate (21). The lower inductor (22) is fixedly installed in the lower induction groove. A first through hole is formed at the bottom of the grouting cavity (15). The upper steel bar (11) extends into the grouting cavity (15) through the first through hole and abuts against the bottom of the pressing plate (21).

5. The performance test platform for an assembled building structure according to claim 4, characterized in that: Two connecting columns (23) are fixedly installed at the top of the lower wall (2). A plurality of fixing holes are provided on the peripheral outer walls of the two connecting columns (23). Two connecting cavities (24) are formed in the upper wall (3). Second through holes are formed at the bottom ends of the two connecting cavities (24). The two connecting columns (23) respectively extend into the two connecting cavities (24) through the two second through holes. A grouting hole (25) is formed at the top end of one of the connecting cavities (24). A plurality of grouting cavities (15) and a plurality of connecting cavities (24) are connected through communication holes (26). A plurality of lifting rings (27) are fixedly arranged at the top of the upper wall (3).

6. The performance test platform for an assembled building structure according to claim 1, wherein: The lifting mechanism includes a U-shaped plate (35). The U-shaped plate (35) is slidably arranged in a U-shaped groove (30). Four screw rods (31) are rotatably installed on the bottom inner wall of the U-shaped groove (30). The screw rods (31) are threadedly connected with the U-shaped plate (35). The top ends of the four screw rods (31) are rotatably installed on the top inner wall of the lifting cavity (10). A transmission component is connected between every two adjacent screw rods (31). The transmission component includes two first synchronous belt wheels (32). The two first synchronous belt wheels (32) are respectively fixedly sleeved on two of the screw rods (31). The two first synchronous belt wheels (32) are connected through a first synchronous belt (33). A motor groove is formed at the bottom of the U-shaped groove (30). A lifting motor (34) for driving one of the screw rods (31) to rotate is fixedly installed in the motor groove.

7. The performance test platform for an assembled building structure according to claim 1, characterized in that: The detachable mechanism includes a connecting bolt (48). Two pin columns (47) are fixedly installed on the side of the lifting plate (36). Two pin slots are formed on the side of the lifting block (29). The two pin columns (47) respectively extend into the two pin slots. A threaded groove is formed on the side of the lifting block (29). The connecting bolt (48) slidably passes through the lifting plate (36) and then extends into the threaded hole and is threadedly connected with the lifting block (29).

8. The performance test platform for an assembled building structure according to claim 1, characterized in that: The guiding mechanism includes a guiding plate (4). A flipping groove is formed at the top of the lifting plate (36), and a square groove (40) is formed at the bottom of the lifting plate (36). A rectangular groove (37) is formed in the lifting plate (36) between the flipping groove and the square groove (40). A rotating shaft (38) is rotatably installed in the flipping groove, and one end of the rotating shaft (38) extends into the rectangular groove (37). The guiding plate (4) is fixedly sleeved on the rotating shaft (38). A control assembly for driving the rotating shaft (38) to rotate is arranged in the square groove (40).

9. The performance test platform for an assembled building structure according to claim 8, characterized in that: The control assembly includes a transmission shaft (41). The transmission shaft (41) is rotatably installed in the square groove (40), and one end of the transmission shaft (41) extends into the rectangular groove (37). Second synchronous belt wheels (42) are fixedly sleeved on both the transmission shaft (41) and the rotating shaft (38). The two second synchronous belt wheels (42) are connected by a second synchronous belt (43). A transmission gear (44) is fixedly installed on the transmission shaft (41). A straight rack (45) is fixedly installed on the side of the lower wall body (2). The straight rack (45) is meshed with the transmission gear (44). An avoidance groove (46) adapted to the straight rack (45) is formed on one side of the square groove (40).

10. A test method for an assembled building structure performance test platform according to any one of claims 1-9, characterized in that It includes the following steps: S1. Guide and install the lower wall body (2) on the top of the bottom plate (1) through a plurality of lower steel bars (5). Flip the two support rods (8) so that their upper ends are respectively placed in the U-shaped blocks (6) on the side of the lower wall body (2), and fix them with fixing bolts (9). S2. Lift and transport the upper wall body (3) above the lower wall body (2). The lifting motor (34) drives the screw rod (31) to rotate, so that the loop plate (35), the lifting block (29) and the lifting plate (36) move synchronously. When the lifting plate (36) reaches an appropriate position, drive the transmission shaft (41) to rotate through the meshing of the transmission gear (44) and the straight rack (45), and then flip the guiding plate (4) to an inclined state. When the upper wall body (3) moves downward, through the guiding action of a plurality of guiding plates (4), the first through holes at its bottom are aligned with the upper steel bars (11). S3. When the upper wall body (3) continues to move downward, the upper steel bars (11) pass through the first through holes and extend into the grouting cavity (15) and contact the extrusion plate (21). When the upper wall body (3) and the annular plate (16) continue to descend until the annular plate (16) is in contact with the extrusion plate (21), the upper inductor (17) and the lower inductor (22) contact and send an electrical signal to indicate that the upper steel bars (11) are connected to the upper wall body (3) in place. Then the lifting is released, and the weighing plate (14) is used to measure the mass of the upper wall body (3). S4. After the quality data monitoring of the upper wall (3) is completed, the rectangular plate (12), the upper steel bar (11) and the upper wall (3) are driven to move downward synchronously by a plurality of electric cylinders (13) until the upper wall (3) falls to the top of the lower wall (2). Denote the initial length that the upper steel bar (11) extends out of the lower wall (2) as x, and denote the distance that the electric cylinder (13) drives the upper steel bar (11) to descend as y. Thus, the length that the upper steel bar (11) extends into the grouting cavity (15) is calculated as x - y; S5. Pour the concrete mortar into the connection cavity (24) through the grouting hole (25). Utilize its fluidity to make it flow into the grouting cavity (15) through the communication hole (26). After solidification, it is connected to the upper steel bar (11). At the same time, the concrete mortar will flow into the fixing holes of the connecting column (23) and be connected to the connecting column (23) after solidification, enhancing the stability after the walls are connected.

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