Vertical load loading device for shear wall

Abstract

The invention relates to the technical field of load loading devices, and provides a shear wall vertical load loading device which can further form longitudinal dynamic load adding while meeting basic vertical load loading, the environment simulation effect in the shear wall test piece testing process is well attached to the real environment, operation is convenient, practicability is high, and the application range is wide. Comprising a shear wall test piece and further comprises a main body structure, the main body structure comprises a concrete base and a top steel structure frame, a mounting cavity is formed in the concrete base, a lifting block is slidably connected into the mounting cavity, a plurality of hydraulic telescopic cylinders are mounted in the mounting cavity, and the hydraulic telescopic cylinders cooperate together to achieve height adjustment of the lifting block; a movable carrier is arranged on the lifting block, the movable carrier is used for auxiliary supporting and moving of the shear wall test piece, the top steel structure frame is fixedly connected to the top end of the concrete base, a sliding plate block is slidably connected into the top steel structure frame, and a plurality of supporting columns are fixedly connected to the bottom end of the sliding plate block.

Description

Technical Field

[0001] The invention relates to the technical field of load loading devices, and in particular to a shear wall vertical load loading device. Background Art

[0002] As we all know, in the field of building structure testing, in order to study the mechanical properties of shear walls under vertical loads, it is necessary to simulate the vertical forces borne by shear walls in actual projects. To facilitate the simulation and detection of shear walls, we propose a shear wall vertical load loading device, which is mainly used to apply vertical loads to test the hysteresis performance of shear walls.

[0003] After searching, the Chinese patent publication number CN103207096B and the patent publication number CN206848090U respectively disclose a shear wall vertical load loading device and a building prefabricated reinforced concrete shear wall loading test device, wherein the former is described as including columns, reaction beams, and shear wall specimens, the reaction beams are fixedly installed on two columns, and also include a bottom beam, a polytetrafluoroethylene plate, a bearing plate, an anti-overturning grid, a hydraulic jack, a pulley, an adjustment bolt, a hydraulic oil source, a pressure stabilizing system, and an oil pipe. Two columns are fixedly installed on the bottom beam, and the shear wall specimen is placed on the bottom beam. A bearing plate is installed on the top of the shear wall specimen, and adjustment bolts are installed on the left and right sides of the bearing plate. More than five hydraulic jacks of the same specifications are connected in series through oil pipes and connected to the hydraulic oil source and the pressure stabilizing system. A plurality of concave holes corresponding to the hydraulic jacks are arranged on the top of the bearing plate, and the hydraulic jacks are placed in the concave holes of the bearing plate. The anti-overturning grid is fixed around all the hydraulic jacks, a pulley is installed on the top of the hydraulic jack, and a polytetrafluoroethylene plate is installed on the bottom of the reaction beam, wherein the latter is roughly described as including a first support column, a second support column, a reaction wall, a base, a horizontal jack, a loading frame, a vertical jack and a test piece, the bottom surfaces of the first support column, the second support column and the reaction wall are fixedly connected to the upper surface of the base, the base of the horizontal jack is arranged in the middle of the reaction wall, and is connected to the reaction wall by bolts, one end of the loading frame is bolted to the upper end of the first support column, and the other end is bolted to the upper end of the second support column, the vertical jack is arranged on the loading frame, and is connected to the loading frame by bolts, the test piece is composed of an upper loading top beam, a middle prefabricated reinforced concrete shear wall and a bottom ground beam, the left end face of the loading top beam contacts the end face of the top head of the horizontal jack, the top face of the loading top beam contacts the end face of the top head of the vertical jack, and the ground beam is fixed to the base by ground anchor screws.

[0004] Although the above-mentioned existing technical scheme can form load loading with the supporting specimens, and then achieve the purpose of simulating the test of the specimens, it is considered that in high-rise buildings, the direction of the vertical load force borne by the shear walls located at different heights is not simply downward. When affected by external forces such as wind, the superstructure in the high-rise building will cause shaking. In this case, the vertical load borne by the relatively low shear walls in the high-rise building may have a certain lateral position change, so the simulation state in the above-mentioned technical scheme needs to be further enriched. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a shear wall vertical load loading device, which can further form the addition of longitudinal dynamic load while satisfying the basic vertical load loading. During the shear wall specimen test, the environmental simulation effect has a better fit with the real environment, the operation is more convenient, and it is more practical.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shear wall vertical load loading device, including a shear wall specimen and a main structure, wherein the main structure includes a concrete base and a top steel structure frame, wherein an installation cavity is arranged in the concrete base, wherein a lifting block is slidably connected in the installation cavity, wherein a plurality of hydraulic telescopic cylinders are installed in the installation cavity, wherein the plurality of hydraulic telescopic cylinders cooperate with each other to realize the height adjustment of the lifting block, wherein a mobile carrier is arranged on the lifting block, wherein the mobile carrier is used for auxiliary support and movement of the shear wall specimen, and wherein the top steel structure frame is fixedly connected to the top of the concrete base A sliding plate is slidably connected in the top steel structure frame, and a plurality of supporting columns are fixedly connected to the bottom end of the sliding plate. A contact pressure frame matching the shear wall specimen is fixedly connected to the bottom ends of the plurality of supporting columns. The contact pressure frame and the mobile carrier are both equipped with an alignment clamping structure and a linkage structure for adjusting the alignment clamping structure. A door-shaped frame is fixedly connected to the top end of the sliding plate, and a dynamic drive system is installed at the top end of the top steel structure frame. A central cone hole matching the dynamic drive system is opened at the top end of the door-shaped frame. Two lateral detection systems are installed between the concrete base and the top steel structure frame.

[0007] Preferably, the dynamic drive system includes a center hole longitudinal frame and a torque motor, the center hole longitudinal frame is fixedly connected to the top of the top steel structure frame, the torque motor is installed at the top of the center hole longitudinal frame, a rotating frame is rotatably connected inside the center hole longitudinal frame, the torque motor is used for rotational driving of the rotating frame relative to the center hole longitudinal frame, a sliding frame is slidably connected inside the rotating frame, a horizontal drive cylinder is installed on the top of the rotating frame, the telescopic rod of the horizontal drive cylinder is connected to the sliding frame, a vertical drive cylinder is installed on the sliding frame, the telescopic rod of the vertical drive cylinder passes through the sliding frame, and the bottom end of the telescopic rod of the vertical drive cylinder is fixedly connected to a ball head column, and the ball head column matches the center cone hole.

[0008] Preferably, the mobile carrier includes a supporting plate, the four corners of the bottom end of the supporting plate are fixedly connected with bogies, the four bogies are rotatably connected with rotating wheels, a fixed guide frame is fixedly connected in the mounting cavity, the lifting block is slidably connected in the fixed guide frame, four supporting corner blocks are fixedly connected in the fixed guide frame, the four supporting corner blocks are respectively matched with the four rotating wheels, and four corner openings are opened on the lifting block, and the four corner openings are respectively matched with the four supporting corner blocks.

[0009] Preferably, the two alignment clamping structures both include a lifting frame, and the two lifting frames are respectively slidably connected to the contact pressure frame and the support plate, and the two lifting frames are fixedly connected with a plurality of reset springs, and the plurality of reset springs are respectively fixedly connected to the contact pressure frame and the support plate, and the two lifting frames are both hinged with a plurality of curved longitudinal frames and a plurality of curved transverse frames, and the two lifting frames are both provided with a plurality of transverse notches and a plurality of longitudinal notches, and the plurality of transverse notches are respectively matched with the plurality of curved transverse frames, and the plurality of longitudinal notches are respectively matched with the plurality of curved longitudinal frames, and the plurality of curved longitudinal frames and the plurality of curved transverse frames are both hinged with vertical clamping plates.

[0010] Preferably, the plurality of vertical clamping plates are fixedly connected to the upper offset hinged seats, the plurality of curved horizontal frames and the plurality of curved vertical frames are provided with hinge holes, the plurality of hinge holes are provided with hinge shafts, and the plurality of hinge shafts are respectively fixedly connected to the plurality of upper offset hinged seats.

[0011] Preferably, the two linkage structures each include a plurality of linkage rods and a plurality of bar hole rods, the plurality of linkage rods are respectively inserted into the bar holes on the plurality of bar hole rods, the plurality of bar hole rods are respectively fixedly connected to the plurality of curved horizontal frames and the plurality of curved vertical frames, the contact pressure frame and the support plate are both fixedly connected to a plurality of side connection seats, and the plurality of linkage rods are respectively fixedly connected to the plurality of side connection seats.

[0012] Preferably, cast steel bars are arranged in the concrete base, and the cast steel bars are fixedly connected with two groups of anchor rods. The bottom end of the top steel structure frame is fixedly connected with two supporting steel frames, and the two supporting steel frames are fixedly connected with the two groups of anchor rods respectively.

[0013] Preferably, the two lateral detection systems each include a rotating vertical axis, and the two rotating vertical axes are rotatably connected between the concrete base and the top steel structure frame. A plurality of equally spaced mounting frames are installed on the two rotating vertical axes, and a laser rangefinder is installed on the plurality of equally spaced mounting frames. A synchronous drive structure is installed on one of the supporting steel frames close to the right side, and the synchronous drive structure is used for rotational drive of the two rotating vertical axes.

[0014] Preferably, the synchronous drive structure includes a servo motor and two racks, the servo motor is installed on one of the supporting steel frames close to the right side, a sliding sleeve is fixedly connected to the supporting steel frame close to the right side, the two racks are slidably connected in the sliding sleeve, a synchronous gear is meshed between the two racks, the synchronous gear is connected to the output shaft of the servo motor, the two racks are meshed with driven gears, and the two driven gears are respectively fixedly connected to the two rotating vertical shafts.

[0015] Preferably, the two rotating vertical shafts are rotatably connected to multiple support sleeves, and the multiple support sleeves are fixedly connected to one of the supporting steel frames close to the right side. The bottom ends of the two rotating vertical shafts are rotatably connected to bottom supports, and the two bottom supports are fixedly connected to the concrete base. The top ends of the two rotating vertical shafts are rotatably connected to top supports, and the two top supports are fixedly connected to the top steel structure frame.

[0016] Compared with the prior art, the present invention provides a shear wall vertical load loading device, which has the following beneficial effects: (1) In the present invention, the main structure is designed to cooperate with the shear wall specimen to form a corresponding placement and placement structure, which facilitates the matching shear wall specimen to form subsequent relative vertical load loading.

[0017] (2) In the present invention, through the design of the dynamic drive system, the addition of longitudinal load can be formed while the vertical load is added to the shear wall specimen, which is used to simulate the application of external lateral force and provide richer environmental simulation. During the shear wall specimen test, the environmental simulation effect is better in line with the real environment.

[0018] (3) In the present invention, by configuring a lateral detection system, the shear wall specimen under test is used to detect changes in the external structure under the test state, thereby achieving quantification and recording of the test data.

[0019] (4) In the present invention, the design of the mobile carrier can cooperate with the shear wall specimen to form a position adjustment, so as to facilitate the shear wall specimen to enter the area between the concrete base and the top steel structure frame. Through the design of the positioning clamping structure, the shear wall specimen is placed in the area between the concrete base and the top steel structure frame to form an auxiliary positioning, which is more convenient to operate and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention when the shear wall specimen is not installed; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1A schematic diagram of the local enlarged structure at B in the middle; Figure 4 It is a partially cutaway three-dimensional structural schematic diagram of the concrete base, top steel structure frame and hydraulic telescopic cylinder of the present invention; Figure 5 It is a schematic diagram of the exploded three-dimensional structure of the rotating frame, the sliding frame and the vertical driving cylinder of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the contact press frame, the door frame and the lifting frame of the present invention; Figure 7 It is a schematic diagram of the overall three-dimensional structure from another angle when the shear wall test piece of the present invention is not installed; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at C in the middle; Fig. 9 It is a bottom-up three-dimensional structural schematic diagram of the supporting column, lifting frame and return spring of the present invention; Fig.10 It is a schematic diagram of the overall three-dimensional structure from the rear side when the shear wall test piece of the present invention is not installed; Fig.11 For the present invention Fig.10 A schematic diagram of the local enlarged structure at D in the middle; Fig.12 It is a schematic diagram of a three-dimensional structure of the rotating frame, the sliding frame and the ball stud etc. of the present invention when viewed from the bottom; Fig.13 This is a schematic diagram of the overall three-dimensional structure of the present invention when the shear wall test piece is installed; Fig.14 For the present invention Fig.13 Schematic diagram of the local enlarged structure at point E in the middle.

[0021] In the figure: 1. Shear wall specimen; 2. Concrete base; 3. Top steel structure frame; 4. Installation cavity; 5. Lifting block; 6. Hydraulic telescopic cylinder; 7. Sliding plate; 8. Support column; 9. Contact pressure frame; 10. Door frame; 11. Center cone hole; 12. Center hole longitudinal frame; 13. Torque motor; 14. Rotating frame; 15. Sliding frame; 16. Horizontal drive cylinder; 17. Vertical drive cylinder; 18. Ball head column; 19. Support plate; 20. Bogie; 21. Rotating wheel; 22. Fixed guide frame; 23. Support angle block; 24. Angle opening; 25. Lifting frame; 26. Return spring; 27. Horizontal notch; 28. Longitudinal notch; 29. ​​Bent horizontal frame; 30. Bent vertical frame; 31. Vertical clamping plate; 32. Upper hinged seat; 33. Hinge shaft; 34. Linkage rod; 35. Strip hole rod; 36. Side connection seat; 37. Cast steel bars; 38. Anchor rod; 39. Support steel frame; 40. Rotating vertical axis; 41. Equally spaced mounting frame; 42. Laser rangefinder; 43. Servo motor; 44. Rack; 45. Sliding sleeve; 46. Synchronous gear; 47. Driven gear; 48. Support sleeve; 49. Bottom support; 50. Top support. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] For examples, see Figure 1-Figure 14A shear wall vertical load loading device includes a shear wall specimen 1 and a main structure. The main structure includes a concrete base 2 and a top steel structure frame 3. An installation cavity 4 is provided in the concrete base 2. A lifting block 5 is slidably connected in the installation cavity 4. A plurality of hydraulic telescopic cylinders 6 are installed in the installation cavity 4. The plurality of hydraulic telescopic cylinders 6 cooperate to achieve height adjustment of the lifting block 5. A mobile carrier is provided on the lifting block 5. The mobile carrier is used for auxiliary support and movement of the shear wall specimen 1. The mobile carrier includes a supporting plate 19. Bogies 20 are fixedly connected at the four corners of the bottom end of the supporting plate 19. Rotating wheels 21 are rotatably connected in the four bogies 20. A fixed guide frame 22 is fixedly connected in the installation cavity 4. The lifting block 5 is slidably connected in the fixed guide frame 22. Four wheels 21 are fixedly connected in the fixed guide frame 22. Support corner blocks 23, four support corner blocks 23 are matched with four rotating wheels 21 respectively, four corner openings 24 are opened on the lifting block 5, and the four corner openings 24 are matched with four support corner blocks 23 respectively. Through the design of the mobile carrier, it can cooperate with the shear wall specimen 1 to form position adjustment, so as to facilitate the shear wall specimen 1 to enter the area between the concrete base 2 and the top steel structure frame 3. The top steel structure frame 3 is fixedly connected to the top of the concrete base 2, and a sliding plate 7 is slidably connected in the top steel structure frame 3. The bottom end of the sliding plate 7 is fixedly connected with a plurality of support columns 8, and the bottom ends of the plurality of support columns 8 are fixedly connected with a contact pressure frame 9 matched with the shear wall specimen 1. Through the design of the main structure, the corresponding insertion and placement structure is formed in cooperation with the shear wall specimen 1, which is convenient for the matching shear wall specimen 1 to form subsequent relative vertical load loading.

[0024] It should be further explained that the contact pressure frame 9 and the movable carrier are both equipped with a positioning clamping structure and a linkage structure for adjusting the positioning clamping structure. The two positioning clamping structures include a lifting frame 25. The two lifting frames 25 are respectively slidably connected to the contact pressure frame 9 and the supporting plate 19. The two lifting frames 25 are fixedly connected with a plurality of return springs 26. The plurality of return springs 26 are respectively fixedly connected to the contact pressure frame 9 and the supporting plate 19. The two lifting frames 25 are both hinged with a plurality of curved longitudinal frames 30 and a plurality of curved transverse frames 29. The two lifting frames 25 are both provided with a plurality of transverse notches 27 and a plurality of longitudinal notches 28. The plurality of transverse notches 27 are respectively matched with the plurality of curved transverse frames 29, and the plurality of longitudinal notches 28 are respectively matched with the plurality of curved longitudinal frames 30. 0 matching, multiple curved longitudinal frames 30 and multiple curved transverse frames 29 are hinged with vertical clamping plates 31, and the shear wall specimen 1 is placed in the area between the concrete base 2 and the top steel structure frame 3 through the design of the positioning clamping structure. Because after the shear wall specimen 1 forms contact with the lifting frame 25 and generates interaction force, under the action of the interaction force between the lifting frame 25 and the shear wall specimen 1, the lifting frame 25 slidably connected to the contact pressure frame 9 will form a relative height change with the contact pressure frame 9, and the lifting frame 25 slidably connected to the support plate 19 will form a relative height change with the support plate 19. In the process of the height change of the lifting frame 25, the bending transverse frame 29, the bending longitudinal frame 30, the linkage rod 34, the hole rod 35 and The transmission of the side connecting seat 36 realizes the rotation adjustment of the bent horizontal frame 29 and the bent vertical frame 30 relative to the shear wall specimen 1, and finally achieves the rotation and approach of the vertical clamping plate 31 relative to the shear wall specimen 1. The vertical clamping plate 31 rotated and approached relative to the shear wall specimen 1 enables the shear wall specimen 1 to be centrally clamped, and the centrally clamped shear wall specimen 1 is also centrally aligned with the lifting frame 25, thereby reducing the centering adjustment operation during the clamping process of the shear wall specimen 1, so the operation is more convenient. The two linkage structures include multiple linkage rods 34 and multiple bar hole rods 35. The multiple linkage rods 34 are respectively inserted into the bar holes on the multiple bar hole rods 35. The multiple bar hole rods 35 are respectively fixedly connected to the multiple bent horizontal frames 29 and the multiple bent vertical frames 30. Then, the contact pressure frame 9 and the supporting plate 19 are both fixedly connected with a plurality of side connection seats 36, and a plurality of linkage rods 34 are respectively fixedly connected in the plurality of side connection seats 36. Through the configuration of the linkage structure, since the side connection seats 36 on the contact pressure frame 9 are fixedly connected to the contact pressure frame 9, when the lifting frame 25 slidably connected to the contact pressure frame 9 forms a relative height change with the contact pressure frame 9, it is manifested as the lifting frame 25 and the side connection seats 36 on the contact pressure frame 9 form a height change. During the height change process, under the transmission action of the corresponding linkage rods 34 and the bar hole rods 35, the bending horizontal frame 29 connected to the bar hole rods 35 will be formed. Rotation adjustment relative to the lifting frame 25 will also be formed. Rotation adjustment of the bending vertical frame 30 connected to the bar hole rods 35 relative to the lifting frame 25 will also be formed.Finally, the vertical clamping plate 31 on the curved horizontal frame 29 and the vertical clamping plate 31 on the curved longitudinal frame 30 are achieved. Similarly, since the side connection seat 36 on the supporting plate 19 is fixedly connected to the supporting plate 19, when the lifting frame 25 slidably connected to the supporting plate 19 forms a relative height change with the supporting plate 19, it is manifested as a height change between the lifting frame 25 and the side connection seat 36 on the supporting plate 19. During the height change process, under the transmission action of the corresponding linkage rod 34 and the bar hole rod 35, the curved horizontal frame 29 connected to the bar hole rod 35 will be rotated relative to the lifting frame 25, and the curved longitudinal frame 30 connected to the bar hole rod 35 will be rotated relative to the lifting frame 25, so as to finally achieve the vertical clamping plate 31 on the curved horizontal frame 29. The following change and the following change of the vertical clamping plates 31 on the curved longitudinal frame 30 can form a linkage adjustment of multiple vertical clamping plates 31 with the height change of the lifting frame 25, and then achieve the rotation, approach and clamping operation of the vertical clamping plates 31 relative to the shear wall specimen 1, which is convenient for operation. Multiple vertical clamping plates 31 are fixedly connected with upper deflected hinge seats 32, multiple curved horizontal frames 29 and multiple curved longitudinal frames 30 are provided with hinge holes, and multiple hinge holes are provided with hinge shafts 33. Multiple hinge shafts 33 are respectively fixedly connected in multiple upper deflected hinge seats 32, so that the vertical clamping plates 31 can be close to the shear wall specimen 1 and clamped in the process of clamping, and the vertical clamping plates 31 can be auxiliaryly maintained in the upright state under the action of their own gravity, which is convenient for contact and fitting relative to the shear wall specimen 1, which is more practical.

[0025] It should be further explained that a door frame 10 is fixedly connected to the top of the sliding plate 7, a dynamic drive system is installed at the top of the top steel structure frame 3, a center cone hole 11 matching the dynamic drive system is opened at the top of the door frame 10, and the dynamic drive system includes a middle hole longitudinal frame 12 and a torque motor 13, the middle hole longitudinal frame 12 is fixedly connected to the top of the top steel structure frame 3, the torque motor 13 is installed at the top of the middle hole longitudinal frame 12, a rotating frame 14 is rotatably connected in the middle hole longitudinal frame 12, the torque motor 13 is used for the rotational drive of the rotating frame 14 relative to the middle hole longitudinal frame 12, a sliding frame 15 is slidably connected in the rotating frame 14, a transverse drive cylinder 16 is installed at the top of the rotating frame 14, and the telescopic rod of the transverse drive cylinder 16 is connected to the sliding frame 15, and the sliding frame 15 A vertical drive cylinder 17 is installed on the top, and the telescopic rod of the vertical drive cylinder 17 passes through the sliding frame 15, and the bottom end of the telescopic rod of the vertical drive cylinder 17 is fixedly connected with a ball head column 18, and the ball head column 18 matches the central cone hole 11. Through the design of the dynamic drive system, the addition of longitudinal load can be formed while the vertical load is added to the shear wall specimen 1, which is used to simulate the application of external lateral force and provide richer environmental simulation. During the test of the shear wall specimen 1, the environmental simulation effect has a good fit with the real environment. Two lateral detection systems are installed between the concrete base 2 and the top steel structure frame 3. The two lateral detection systems both include a rotating vertical shaft 40. The two rotating vertical shafts 40 are both rotatably connected between the concrete base 2 and the top steel structure frame 3. A plurality of equally spaced mounting frames 41 are installed, and laser rangefinders 42 are installed on the plurality of equally spaced mounting frames 41. A synchronous drive structure is installed on a support steel frame 39 close to the right side, and the synchronous drive structure is used for rotational drive of two rotating vertical shafts 40. The synchronous drive structure includes a servo motor 43 and two racks 44. The servo motor 43 is installed on a support steel frame 39 close to the right side, and a sliding sleeve 45 is fixedly connected to the support steel frame 39 close to the right side. The two racks 44 are both slidably connected in the sliding sleeve 45. A synchronous gear 46 is meshed between the two racks 44, and the synchronous gear 46 is connected to the output shaft of the servo motor 43. The two racks 44 are meshed with driven gears 47, and the two driven gears 47 are respectively fixed to the two rotating vertical shafts 40. The connection is equipped with a lateral detection system, and the shear wall specimen 1 under test is used to detect the changes in the external structure under the test state, so as to achieve the quantification and recording of the test data. The two rotating vertical shafts 40 are rotatably connected to multiple support sleeves 48, and the multiple support sleeves 48 are fixedly connected to a support steel frame 39 near the right side. The bottom ends of the two rotating vertical shafts 40 are rotatably connected to bottom supports 49, and the two bottom supports 49 are fixedly connected to the concrete base 2. The top ends of the two rotating vertical shafts 40 are rotatably connected to top supports 50, and the two top supports 50 are fixedly connected to the top steel structure frame 3, so as to improve the auxiliary installation support effect of the rotating vertical shaft 40. Cast steel bars 37 are arranged in the concrete base 2, and the cast steel bars 37 are fixedly connected to two groups of anchor rods 38.The bottom end of the top steel structure frame 3 is fixedly connected to two supporting steel frames 39, and the two supporting steel frames 39 are respectively fixedly connected to two groups of anchor rods 38, thereby improving the structural strength of the concrete base 2 itself and the connection strength between the concrete base 2 and the supporting steel frames 39.

[0026] The torque motor 13, laser rangefinder 42, servo motor 43, hydraulic telescopic cylinder 6, horizontal drive cylinder 16 and vertical drive cylinder 17 in this embodiment are all conventional devices purchased on the market and known to those skilled in the art. In the present invention, we only use them without improving their structure and function. For those skilled in the art, their setting method, installation method and electrical connection method can be debugged and operated according to the requirements of their instruction manual, and they will not be described in detail here. The hydraulic telescopic cylinder 6, horizontal drive cylinder 16 and vertical drive cylinder 17 are provided with matching The hydraulic pump and oil circuit system, the hydraulic pump is equipped with a hydraulic oil tank, and the operation of the hydraulic pump can supply oil to the hydraulic telescopic cylinder 6, the horizontal drive cylinder 16 and the vertical drive cylinder 17, thereby achieving the telescopic control of the hydraulic telescopic cylinder 6, the horizontal drive cylinder 16 and the vertical drive cylinder 17, and in order to realize the separate control of the hydraulic telescopic cylinder 6, the horizontal drive cylinder 16 and the vertical drive cylinder 17, the hydraulic telescopic cylinder 6, the horizontal drive cylinder 16 and the vertical drive cylinder 17 are equipped with electromagnetic control valves, and the inlet and outlet control of the hydraulic oil in each of the three hydraulic telescopic cylinders 6, the horizontal drive cylinder 16 and the vertical drive cylinder 17 is realized by the on and off of the electromagnetic control valve.

[0027] To sum up, the working principle of the shear wall vertical load loading device is as follows: when in use, the shear wall vertical load loading device is first constructed and installed at the corresponding construction site. Before installation, a pit should be dug in advance to realize the pouring of the concrete base 2. Before pouring, pouring steel bars 37 should be pre-set in the pit, and anchor rods 38 should be fixedly installed relative to the pouring steel bars 37 as the pouring proceeds. During the pouring process, an installation cavity 4 is reserved, and a fixed guide frame 22 is fixedly installed in the installation cavity 4. After the pouring is completed, the concrete base 2 should be flush with the ground. After the concrete is completely dried, subsequent installation of other equipment is performed. After the overall structure of the equipment is installed, electrical installation should be carried out, and supporting electrical equipment should be used to form a control integration. A central host is installed in the control integrated circuit to facilitate the control of the detection process and the reading, calculation and storage of detection data. When testing, first move the support plate 19 out of the area between the concrete base 2 and the top steel structure frame 3, and then place the shear wall specimen 1 relative to the support plate 19. After the shear wall specimen 1 contacts the lifting frame 25 on the support plate 19, due to the effect of the shear wall specimen 1's own gravity, the lifting frame 25 on the support plate 19 slides and falls relative to the support plate 19, thereby prompting the matching clamping structure on the support plate 19 to form an auxiliary clamping limit at the bottom of the shear wall specimen 1. Then, by moving the support plate 19, the support plate 19 carries the shear wall specimen 1 into the detection area between the concrete base 2 and the top steel structure frame 3, and controls the rotating wheel 21 to move to the top of the support angle block 23, and fine-tunes the upper and lower relative positions of the support plate 19 and the contact pressure frame 9, so that the shear wall specimen 1 enters the bottom of the contact pressure frame 9.

[0028] Furthermore, after the adjustment is completed, multiple hydraulic telescopic cylinders 6 are controlled to work synchronously to realize the height increase of the lifting block 5 relative to the supporting angle block 23. The raised lifting block 5 will first come into contact with the supporting plate 19 and lift up the supporting plate 19. During this process, the shear wall specimen 1 will rise synchronously with the rise of the supporting plate 19. The top of the raised shear wall specimen 1 will first come into contact with the lifting frame 25 in the alignment clamping structure on the contact pressure frame 9, and after the contact, the relative position of the lifting frame 25 relative to the contact pressure frame 9 will be moved, thereby realizing the clamping of the alignment clamping structure relative to the top of the shear wall specimen 1. With the further rise of the lifting block 5, the shear wall specimen 1 is achieved between the concrete base 2 and the top steel structure frame 3. The vertical load is loaded, and the hydraulic telescopic cylinder stops working after the vertical load is loaded. During the height change of the lifting frame 25, the rotation adjustment of the bent horizontal frame 29 and the bent vertical frame 30 relative to the shear wall specimen 1 is realized through the linkage transmission of the bent horizontal frame 29, the bent vertical frame 30, the linkage rod 34, the bar hole rod 35 and the side connecting seat 36, and finally the vertical clamping plate 31 is rotated close to the shear wall specimen 1. Along with the operation of the hydraulic telescopic cylinder 6, the servo motor 43 runs, and the rotation drive of the rotating vertical shaft 40 is realized through the transmission of the synchronous gear 46, the rack 44 and the driven gear 47, so that the equally spaced mounting frames 41 on the rotating vertical shaft 40 reciprocate, and finally the swing of the laser rangefinder 42 is realized. The laser rangefinder 42 During the swinging process, a complete reciprocating scanning test of the entire width of the shear wall specimen 1 is realized, so as to achieve dynamic detection of the shear wall specimen 1 during the entire process of vertical load loading. After the vertical load loading is completed, the vertical drive cylinder 17 is used to realize the insertion of the ball head column 18 relative to the central cone hole 11, and then the sliding plate 7 is driven to move relative to the top steel structure frame 3 by pushing the door frame 10, so as to exert horizontal force on the shear wall specimen 1, and finally realize the simulation of forces such as wind force, and realize the swing environment simulation of the shear wall specimen 1 under wind state by controlling the repeated rise and fall of the ball head column 18, and the sliding frame 15 is controlled to rotate relative to the rotating frame 14 by the horizontal drive cylinder 16. The relative position can be adjusted to achieve the control of the offset amplitude of the ball head column 18 relative to the central cone hole 11, so as to achieve the simulation of different wind forces, and the torque motor 13 can realize the rotation adjustment of the rotating frame 14 relative to the central hole longitudinal frame 12, so as to achieve the adjustment of the offset direction of the ball head column 18 relative to the central cone hole 11, and finally achieve the simulation of different wind directions. The detection state is richer, making the detection simulation more consistent with the real state. With the addition of load, the swinging laser rangefinder 42 will form multiple data detections on the shear wall specimen 1. By calculating the difference between the corresponding two detection data, the influence of load loading on the shear wall specimen 1 in the corresponding time period between the two measurement data forming the difference can be realized.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shear wall vertical load application device, comprising a shear wall specimen (1), characterized in that: The invention also comprises a main structure, wherein the main structure comprises a concrete base (2) and a top steel structure frame (3), wherein an installation cavity (4) is provided in the concrete base (2), wherein a lifting block (5) is slidably connected in the installation cavity (4), wherein a plurality of hydraulic telescopic cylinders (6) are installed in the installation cavity (4), wherein the plurality of hydraulic telescopic cylinders (6) cooperate to achieve height adjustment of the lifting block (5), wherein a mobile carrier is provided on the lifting block (5), wherein the mobile carrier is used for auxiliary support and movement of the shear wall specimen (1), wherein the top steel structure frame (3) is fixedly connected to the top of the concrete base (2), wherein a sliding plate (7) is slidably connected in the top steel structure frame (3), wherein the lifting block (5) is provided with a movable carrier, wherein the movable carrier is used for auxiliary support and movement of the shear wall specimen (1 ... movable carrier is fixedly connected to the top of the concrete base (2), wherein a sliding plate (7) is slidably connected in the top steel structure frame (3), wherein the movable carrier is provided with a movable carrier, wherein the movable carrier is provided for auxiliary support and movement of the shear wall specimen (1), wherein the movable carrier is provided for auxiliary support and movement of the shear wall specimen (1), wherein the movable carrier is provided for auxiliary support and movement of the shear wall specimen (1), wherein the movable carrier is provided The bottom end of the sliding plate (7) is fixedly connected to a plurality of support columns (8), and the bottom ends of the plurality of support columns (8) are fixedly connected to a contact pressure frame (9) matching the shear wall specimen (1). The contact pressure frame (9) and the mobile carrier are both installed with a positioning clamping structure and a linkage structure for adjusting the positioning clamping structure. The top end of the sliding plate (7) is fixedly connected to a door frame (10), and the top end of the top steel structure frame (3) is installed with a dynamic drive system. The top end of the door frame (10) is provided with a central cone hole (11) matching the dynamic drive system. Two lateral detection systems are installed between the concrete base (2) and the top steel structure frame (3).

2. A shear wall vertical load loading device according to claim 1, characterized in that: The dynamic drive system comprises a central hole longitudinal frame (12) and a torque motor (13), wherein the central hole longitudinal frame (12) is fixedly connected to the top of the top steel structure frame (3), and the torque motor (13) is installed at the top of the central hole longitudinal frame (12). A rotating frame (14) is rotatably connected inside the central hole longitudinal frame (12), and the torque motor (13) is used for rotationally driving the rotating frame (14) relative to the central hole longitudinal frame (12). A sliding frame (15) is slidably connected inside the rotating frame (14), and a horizontal drive cylinder (16) is installed at the top of the rotating frame (14), and the telescopic rod of the horizontal drive cylinder (16) is connected to the sliding frame (15), and a vertical drive cylinder (17) is installed on the sliding frame (15), and the telescopic rod of the vertical drive cylinder (17) passes through the sliding frame (15), and the bottom end of the telescopic rod of the vertical drive cylinder (17) is fixedly connected to a ball head column (18), and the ball head column (18) matches the central cone hole (11).

3. A shear wall vertical load loading device according to claim 2, characterized in that: The mobile carrier comprises a supporting plate (19), wherein the four corners of the bottom end of the supporting plate (19) are fixedly connected to bogies (20), and the four bogies (20) are rotatably connected to rotating wheels (21). A fixed guide frame (22) is fixedly connected to the installation cavity (4), and the lifting block (5) is slidably connected to the fixed guide frame (22). Four supporting corner blocks (23) are fixedly connected to the fixed guide frame (22), and the four supporting corner blocks (23) are respectively matched with the four rotating wheels (21). The lifting block (5) is provided with four corner openings (24), and the four corner openings (24) are respectively matched with the four supporting corner blocks (23).

4. A shear wall vertical load loading device according to claim 3, characterized in that: The two alignment clamping structures each comprise a lifting frame (25), the two lifting frames (25) are respectively slidably connected to the contact pressure frame (9) and the support plate (19), the two lifting frames (25) are respectively fixedly connected to a plurality of return springs (26), the plurality of return springs (26) are respectively fixedly connected to the contact pressure frame (9) and the support plate (19), the two lifting frames (25) are respectively hinged with a plurality of curved longitudinal frames (30) and a plurality of curved transverse frames (29), the two lifting frames (25) are respectively provided with a plurality of transverse notches (27) and a plurality of longitudinal notches (28), the plurality of transverse notches (27) are respectively matched with the plurality of curved transverse frames (29), the plurality of longitudinal notches (28) are respectively matched with the plurality of curved longitudinal frames (30), and the plurality of curved longitudinal frames (30) and the plurality of curved transverse frames (29) are respectively hinged with a vertical clamping plate (31).

5. A shear wall vertical load loading device according to claim 4, characterized in that: The plurality of vertical clamping plates (31) are all fixedly connected to an upper offset hinge seat (32), the plurality of curved horizontal frames (29) and the plurality of curved vertical frames (30) are all provided with hinge holes, the plurality of hinge holes are each provided with a hinge shaft (33), and the plurality of hinge shafts (33) are respectively fixedly connected to the plurality of upper offset hinge seats (32).

6. A shear wall vertical load loading device according to claim 5, characterized in that: The two linkage structures each comprise a plurality of linkage rods (34) and a plurality of bar hole rods (35); the plurality of linkage rods (34) are respectively inserted into the bar holes on the plurality of bar hole rods (35); the plurality of bar hole rods (35) are respectively fixedly connected to the plurality of curved horizontal frames (29) and the plurality of curved vertical frames (30); the contact pressure frame (9) and the support plate (19) are both fixedly connected to a plurality of side connection seats (36); and the plurality of linkage rods (34) are respectively fixedly connected to the plurality of side connection seats (36).

7. A shear wall vertical load loading device according to claim 6, characterized in that: Casting steel bars (37) are arranged in the concrete base (2), and the casting steel bars (37) are fixedly connected to two groups of anchor rods (38). The bottom end of the top steel structure frame (3) is fixedly connected to two supporting steel frames (39), and the two supporting steel frames (39) are respectively fixedly connected to the two groups of anchor rods (38).

8. A shear wall vertical load loading device according to claim 7, characterized in that: The two lateral detection systems each comprise a rotating vertical shaft (40), the two rotating vertical shafts (40) being rotatably connected between the concrete base (2) and the top steel structure frame (3), a plurality of equally spaced mounting frames (41) being mounted on the two rotating vertical shafts (40), a laser rangefinder (42) being mounted on the plurality of equally spaced mounting frames (41), and a synchronous drive structure being mounted on one of the supporting steel frames (39) close to the right side, the synchronous drive structure being used for rotationally driving the two rotating vertical shafts (40).

9. A shear wall vertical load loading device according to claim 8, characterized in that: The synchronous drive structure comprises a servo motor (43) and two racks (44); the servo motor (43) is mounted on one of the support steel frames (39) close to the right side; a sliding sleeve (45) is fixedly connected to the one of the support steel frames (39) close to the right side; the two racks (44) are both slidably connected in the sliding sleeve (45); a synchronous gear (46) is meshed between the two racks (44); the synchronous gear (46) is connected to the output shaft of the servo motor (43); the two racks (44) are both meshed with driven gears (47); the two driven gears (47) are respectively fixedly connected to the two rotating vertical shafts (40).

10. A shear wall vertical load loading device according to claim 9, characterized in that: The two rotating vertical shafts (40) are rotatably connected to a plurality of support sleeves (48), and the plurality of support sleeves (48) are fixedly connected to a support steel frame (39) close to the right side. The bottom ends of the two rotating vertical shafts (40) are rotatably connected to bottom supports (49), and the two bottom supports (49) are fixedly connected to the concrete base (2). The top ends of the two rotating vertical shafts (40) are rotatably connected to top supports (50), and the two top supports (50) are fixedly connected to the top steel structure frame (3).

Images