Curtain wall point support node three-dimensional adjustable loading test system

Abstract

The utility model relates to a curtain wall point support node three-dimensional adjustable loading test system, which is characterized in that a supporting platform is connected with a vertical rotating mechanism through a first supporting column, the vertical rotating mechanism is connected with a carrying beam, an actuator is arranged on the carrying beam, a loading end of the actuator is connected with a clamp through a U-shaped plate, the clamp clamps a test piece, and the loading end of the actuator is connected with the U-shaped plate. The supporting platform is connected with the simply-supported pipe through the horizontal sliding supporting mechanism, and the simply-supported pipe restrains the boundary of the test piece; the vertical rotating mechanism comprises a rotating pipe, a braking assembly and a supporting ball sleeve, the braking assembly is arranged on the rotating pipe, the rotating pipe is hinged to the supporting ball sleeve, and the braking assembly and the supporting ball sleeve are matched for braking; the braking assembly comprises a positioning pin, an arc-shaped plate is arranged on the supporting ball sleeve, a hole is formed in the arc-shaped plate, and the positioning pin is embedded into the hole of the arc-shaped plate for braking. Compared with the prior art, on the basis of a curtain wall point support node test, the functions of adjustable plane external loading direction, adjustable curtain wall panel size and the like are provided.

Description

Technical Field

[0001] This utility model belongs to the field of node testing technology for point-supported curtain walls, and relates to a three-dimensional adjustable loading test system for point-supported curtain wall nodes. Background Technology

[0002] Earthquakes are sudden natural disasters that cause severe damage to building structures. Studying the failure mechanisms and seismic performance of structures under seismic loading is crucial for improving the earthquake resistance of buildings. Monotonic cyclic loading tests are experimental methods that simulate seismic loading by applying monotonically increasing or cyclic loads, effectively evaluating the mechanical properties and failure modes of structures under seismic loads. Monotonic cyclic loading tests simulate the stress state under seismic loading by applying monotonically increasing or cyclic loads to structures or components. During the test, the load amplitude and frequency are usually low, but the number of cycles is high, which can better reflect the nonlinear behavior and cumulative damage of structures during earthquakes. The main equipment elements of static tests include loading systems, support and fixing devices, measurement systems, control systems, and data acquisition and processing systems. These equipment elements work together to ensure the accuracy, reliability, and safety of the test. By rationally selecting and configuring these equipment elements, researchers can conduct static tests more effectively, providing reliable data for engineering design and safety assessment.

[0003] Currently, most actuators can only perform in-plane or out-of-plane loading, lacking multi-degree-of-freedom loading capabilities. However, considering that under actual seismic loading, non-structural components are subjected to seismic loads acting simultaneously in both in-plane and out-of-plane directions, uniaxial loading is somewhat inadequate for researchers who want to study the mechanical properties of non-structural components under actual seismic loading. Many static testing devices for curtain wall point-supported joints are only applicable to specimens of specific sizes, and the setting of boundary constraints for specimens is relatively simple and lacks flexibility. Therefore, developing multi-degree-of-freedom loading devices, adapting to specimens of different sizes, and developing general-purpose testing devices have become the directions for the optimization and advancement of static testing devices.

[0004] Patent CN112611629A discloses a multifunctional stone curtain wall connection node load-bearing capacity testing device. The testing device includes: a stepped hanging rod anchoring clamp, an I-beam steel plate, a roller support, a base plate, and connecting columns. Four connecting columns are symmetrically distributed around the axis of the base plate to connect and fix the base plate and the I-beam steel plate. Two connecting columns on the same side also pass through the stepped hanging rod anchoring clamp to fix it between the base plate and the I-beam steel plate. Each step of the stepped hanging rod anchoring clamp has a connecting hole on its side wall for fixing stone hanging parts. The roller support is located on the side of the base plate facing the I-beam steel plate. The stone is fixed to one stepped hanging rod anchoring clamp on each side, or one side of the stone is fixed to a stepped hanging rod anchoring clamp, and the other side is rolled in connection with the roller surface of the roller support. Although the patent uses a stepped hanging anchor clamp as a tool to adjust the size of the stone, it only has three steps and can only be used for a few specific sizes of stone slabs.

[0005] Patent CN103033385A discloses a self-balancing portable automatic control shear wall horizontal and vertical load combined performance test device and method. The testing device includes a loading frame device, a specimen fixing device, a specimen loading device, and a data acquisition system. The loading frame device includes a trapezoidal horizontal reaction frame, an I-beam support, a crossbeam, a column, and prestressed steel cables. The lower end of the trapezoidal horizontal reaction frame is fixedly connected to one end of the I-beam support, and the upper end is fixedly connected to one end of the crossbeam. The prestressed steel cables are arranged inside the trapezoidal horizontal reaction frame. The specimen fixing device includes two triangular steel frames, two fixed actuators, and two sets of steel clamps. The triangular steel frames are fixed to the I-beam support, and one fixed actuator is connected to each triangular steel frame. However, the actuators in this patent can only apply in-plane loads to the specimen. Utility Model Content

[0006] The purpose of this invention is to overcome at least one of the defects of the existing loading device technology, such as the single degree of freedom of loading and the inability to apply to specimens of different sizes, and to provide a three-dimensional adjustable loading test system for curtain wall point support nodes. Based on the curtain wall point support node test, this invention provides functions such as adjustable out-of-plane loading direction and adjustable curtain wall panel size.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] One of the technical solutions of this utility model is to provide a three-dimensional adjustable loading test system for curtain wall point support nodes. The system includes an actuator, a vertical rotation mechanism, a clamp, a simple support tube, a support platform, and a horizontal sliding support mechanism. The support platform is connected to the vertical rotation mechanism through a first support column. The support platform supports the entire device. The vertical rotation mechanism is connected to the mounting beam and supports the mounting beam. An actuator is provided on the mounting beam. The loading end of the actuator is connected to the clamp through a U-shaped plate. The clamp holds the specimen. The support platform is connected to the simple support tube through the horizontal sliding support mechanism. The simple support tube constrains the boundary of the specimen.

[0009] The vertical rotation mechanism includes a rotating tube, a braking assembly, and a supporting ball sleeve. The rotating tube is equipped with the braking assembly, and the rotating tube is hinged to the supporting ball sleeve. The braking assembly cooperates with the supporting ball sleeve for braking.

[0010] The braking assembly includes a positioning pin, and an arc-shaped plate is provided on the support ball sleeve. The arc-shaped plate has several small holes, and the positioning pin is embedded in the small holes of the arc-shaped plate for braking.

[0011] As a preferred technical solution, the actuator is an electric servo actuator, which is connected to the controller of the electric servo via wires to ensure that the electric servo control subsystem can perform loading normally. The controller supports multiple loading regimes, including monotonic loading, monotonic reciprocating cyclic loading, fatigue loading, etc. The rotating ends of a pair of vertical rotating mechanisms are connected to both ends of a mounting beam.

[0012] As a preferred technical solution, the upper outer surface of the support ball sleeve is welded to the arc plate as a whole by three support rods, and the scale of the arc plate has a range of 90°.

[0013] Furthermore, the braking assembly also includes a support frame, a second support plate, and a first cover plate. The rotating tube is provided with a support frame and a second support plate. The first cover plate is L-shaped. The extended part of the first cover plate is hooked into the inner groove of the support frame, and the extended part is pressed against the positioning pin. The positioning pin is L-shaped. The flat part of the positioning pin is mounted on the second support plate, and the insert part is embedded in the small hole of the arc plate. The first cover plate presses the positioning pin to prevent free rotation between the rotating tube and the support ball sleeve.

[0014] As a preferred technical solution, a support frame and a second support plate are welded onto the rotating tube.

[0015] Furthermore, a connecting ball is provided at the rotating shaft end of the rotating tube, and the rotating tube is connected to the supporting ball sleeve through the connecting ball to form a ball joint connection.

[0016] As a preferred technical solution, a connecting ball is welded to the rotating shaft end of the rotating tube.

[0017] Furthermore, a scale is provided on the arc-shaped plate, and each scale line of the scale corresponds one-to-one with the small hole of the arc-shaped plate.

[0018] As a preferred technical solution, a scale is provided on the outer surface of the arc-shaped plate.

[0019] Furthermore, a first base plate is provided under the support ball sleeve, and the first base plate is installed on the first support column. The vertical rotation mechanism is connected to the support platform through the support ball sleeve installed on the first support column, which increases the height of the vertical rotation mechanism.

[0020] As a preferred technical solution, the lower outer surface of the support ball sleeve is welded to the first base plate as a whole by a support rod and two triangular plates on both sides of the support rod. The first base plate is connected to the first support column by bolts, and the first support column is connected to the support platform by bolts.

[0021] Furthermore, the rotating end of the rotating tube is provided with a wing plate, the side of the rotating tube is provided with a first support plate, the web of the mounting beam is mounted on the wing plate, and the wall panel is mounted on the first support plate.

[0022] As a preferred technical solution, the rotating end of the rotating tube is welded with a wing plate to seal the rotating end of the rotating tube. The wing plate is rectangular in shape. The two sides of the rotating tube are welded with a first support plate, which is semi-circular in shape. The mounting beam is a box beam. A groove parallel to the length direction is opened on the web of one side of the mounting beam. The wing plate is inserted into the groove of the mounting beam to ensure that the rotating tube slides in the mounting beam without falling off. Several parallel through holes are opened at the edges of both ends of the mounting beam. The first support plate is connected to the mounting beam by bolts.

[0023] Furthermore, the horizontal sliding support mechanism includes a second support column and an I-shaped support. The I-shaped support has a horizontal groove, and a second base plate is provided under the second support column. The second base plate is adapted to the horizontal groove of the I-shaped support to ensure that the second support column can slide horizontally on the I-shaped support. A second cover plate is provided on both sides of the horizontal groove on the I-shaped support. The second cover plate presses against the second base plate and the I-shaped support to ensure that the second base plate slides within the horizontal groove of the I-shaped support without falling off.

[0024] As a preferred technical solution, the upper surface of the I-shaped support is provided with a horizontal groove parallel to the length direction, the lower end of the second support column is provided with a second base plate, the shape of the second base plate is rectangular, the shape of the second cover plate is also rectangular, the second cover plate is connected to the I-shaped support by bolts, and the I-shaped support is connected to the support platform by bolts.

[0025] Furthermore, small protrusions are provided on both sides of the upper surface of the second base plate, and small protrusions are also provided on one side of the lower surface of the second cover plate.

[0026] As a preferred technical solution, the outer edges of both sides of the upper surface of the second base plate are provided with several regular small protrusions at equal intervals, and the outer edges of one side of the lower surface of the second cover plate are also provided with several regular small protrusions at equal intervals.

[0027] Furthermore, the horizontal sliding support mechanism also includes a top plate, which is connected to the second support column. A simple branch pipe is mounted on the top plate, and a slot is opened on the simple branch pipe. The simple branch pipes are orthogonally connected to each other through the slot, and the overlapping simple branch pipes clamp the edge part of the specimen.

[0028] As a preferred technical solution, the top plate is connected to the upper end of the second support column by bolts, and the overlapping simple branch pipes are connected to the top plate by bolts. The two ends of the simple branch pipes are provided with symmetrical slots.

[0029] Furthermore, a sensor is sleeved on the loading end of the actuator, and the sensor is ball-jointed to the rod end of the first fisheye ring. One end of the U-shaped plate is hinged to the eye end of the first fisheye ring, and the other end is hinged to the eye end of the second fisheye ring. The second fisheye ring is ball-jointed to the clamp, and the clamp holds the specimen.

[0030] As a preferred technical solution, the mounting beam is connected to the actuator by bolts. The support plate of the actuator has four through holes. Correspondingly, the mid-span area of ​​the mounting beam also has four through holes, with a larger circular through hole at the center. The actuator is connected to the mounting beam by bolts, ensuring that the loading rod of the actuator can pass through the circular through hole of the mounting beam. The web of the mounting beam is thick enough to support the actuator under normal loading without deformation. The sensor is connected to the controller of the electric servo via wires to ensure that the electric servo control subsystem can collect data normally. One end of the U-shaped plate is hinged to the eye end of the first fisheye ring by inserting bolts, and the other end is hinged to the eye end of the second fisheye ring by inserting bolts.

[0031] One of the technical solutions of this utility model is to provide a three-dimensional adjustable loading test method for curtain wall point support nodes. This method uses the aforementioned system to conduct a three-dimensional adjustable loading test on curtain wall point support nodes, and includes the following steps:

[0032] S1. First, fix the four horizontal sliding support mechanisms to the support platform with bolts. Loosen the bolts connecting the second cover plate and the I-shaped support to ensure that the second support column can slide on the I-shaped support. Fix the top plate to the second support column with bolts and tighten the bolts. Overlap the four simple support pipes together through the clamps on them. While overlapping the simple support pipes, adjust the position of the second support column until the holes on the overlapping simple support pipes are aligned with the holes on the top plate. Then place the specimen on the four overlapping simple support pipes. Then overlap the other four simple support pipes together and place them on the specimen. Fix the overlapping simple support pipes of the specimen to the top plate with bolts. Tighten the bolts connecting the second cover plate and the I-shaped support. At this time, the second support column is firmly fixed to the I-shaped support.

[0033] S2. By moving the first cover plate embedded in the support frame, the part pressing on the positioning pin is retracted. Then, the positioning pin stuck on the arc plate is pulled out. At this time, the rotating tube can rotate around the central axis of the ball joint. Select the angle to be rotated of the rotating tube, insert the positioning pin into the hole of the corresponding angle on the scale of the arc plate, and then move the first cover plate embedded in the support frame to ensure that the part of the first cover plate protruding is pressed on the positioning pin. In this way, the rotating tube is fixed.

[0034] S3. Use bolts to pass through the corresponding holes of the second fisheye ring and the U-shaped plate hinged on the fixture holding the specimen, and tighten the nuts. Adjust the loading length of the actuator through the controller to ensure that the hole on the first fisheye ring hinged to the actuator and the other end of the U-shaped plate are aligned. Use bolts to pass through the corresponding holes and tighten the nuts. The connection between the actuator and the fixture is now complete, and the test can begin.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) This utility model is mainly aimed at the test of the point support node of the curtain wall. It is a new three-dimensional adjustable loading test system for the point support node of the curtain wall. It has a wide range of applications and is applicable to both point-supported glass curtain walls and stone curtain walls.

[0037] (2) This utility model can adjust the loading direction outside the plane of the curtain wall; the lower end of the rotating tube is provided with a connecting ball, which forms a ball hinge connection with the supporting ball sleeve, so that the rotating tube can rotate around the centroidal axis of the connecting ball in the vertical plane, thereby changing the loading direction of the actuator; several small holes are opened on the arc plate on the supporting ball sleeve, and the positioning pin can be inserted into the small holes of the arc plate to realize the braking of the rotating tube; in addition, a scale is provided on the outer side of the arc plate, and each scale line corresponds to the small hole of the arc plate, which greatly increases the accuracy of the rotation adjustment of the rotating tube;

[0038] (3) This utility model can adapt to curtain walls of different sizes to a certain extent; a horizontal groove is provided on the I-shaped support, and a second base plate is provided at the lower end of the second support column. The second base plate can penetrate into the horizontal groove of the I-shaped support and slide freely in the groove direction, thereby realizing the relative sliding between the second support column and the I-shaped support. Since the curtain wall specimen is indirectly mounted on the second support column, the size of the curtain wall specimen can be changed by the relative sliding between the second support column and the I-shaped support; several small protrusions with equal spacing are provided on one outer edge of the lower surface of the second cover plate, and the lower end of the second support column... Several small protrusions at equal intervals are also provided on the outer edges of both sides of the upper surface of the second base plate. When the edge of the second cover plate with the small protrusions is pressed against the edge of the second base plate at the lower end of the second support column, the protrusions of the two will lock together when they come into contact. The second cover plate is connected to the I-shaped support with bolts and then the bolts are tightened. Under the strong pressure, the protrusions of the two will lock together tightly. The presence of the protrusions greatly increases the friction between the second base plate at the lower end of the second support column and the I-shaped support, ensuring that the two will not slide relative to each other when the second support column is under force, and playing a good braking role for the second support column.

[0039] (4) This utility model can change the boundary conditions of the curtain wall to a certain extent; the two ends of the simple branch pipe are provided with symmetrical slots. The slots can be used to make the simple branch pipes snap together and make the overlapping simple branch pipes in the same horizontal plane; the boundary conditions of the curtain wall specimen are formed by eight identical simple branch pipes overlapping. The overlapping simple branch pipes are fixed to the top plate of the second support column with bolts, thus realizing the four-sided simple support fixation of the curtain wall specimen; removing one side of the simple branch pipe can realize the three-sided simple support fixation of the curtain wall specimen, and removing the opposite side of the simple branch pipe can realize the two-sided simple support fixation of the curtain wall specimen.

[0040] (5) This utility model improves the force transmission effect of the actuator; when the conventionally used screw is subjected to non-axial force, the screw in the threaded hole will be subjected to a certain bending moment, which will reduce the force transmission effect of the actuator and the actual force on the curtain wall specimen will deviate from the force applied by the actuator; in this utility model, the sensor on the actuator is connected to the fish-eye ring by a ball joint, the upper end of the clamp is connected to another fish-eye ring by a ball joint, and the U-shaped plate is hinged between the two fish-eye rings; in terms of force, the ball joint connection is used instead of the threaded connection, which eliminates the bending moment at the threaded connection and greatly improves the force transmission effect of the actuator;

[0041] (6) The present invention can further modify the boundary conditions of the curtain wall; the top plate is a detachable top plate, which means that the simple branch pipe can be replaced with other instruments used to constrain and fix the curtain wall boundary; in addition, the horizontal sliding support mechanism can also move the constrained and fixed point to the mid-span area of ​​the curtain wall specimen, which provides support for studying the influence of the distance from the hinge point to the edge on the curtain wall.

[0042] (7) This utility model can adjust the curtain wall installation area; the wing plate on the rotating tube can slide horizontally in the groove by being embedded in the groove on the web of the mounting beam, and the first support plate of the rotating tube is fixed to the wall plate on the mounting beam by bolts. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural diagram of the three-dimensional adjustable loading test system for the curtain wall point support node in this embodiment of the present invention;

[0044] Figure 2 This is a front view structural diagram of the three-dimensional adjustable loading test system for the curtain wall point support node in this embodiment of the present invention;

[0045] Figure 3 This is a top view of the three-dimensional adjustable loading test system for the curtain wall point support node in this embodiment of the present invention.

[0046] Figure 4 This is a right-view structural schematic diagram of the three-dimensional adjustable loading test system for the curtain wall point support node in this embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of the braking assembly in an embodiment of the present invention;

[0048] Figure 6 This is a schematic diagram of the combination of the rotating tube and the braking assembly in an embodiment of this utility model;

[0049] Figure 7 This is a schematic diagram of the combination of the support ball sleeve and the braking assembly in an embodiment of this utility model;

[0050] Figure 8 This is a schematic diagram of the structure of the second support column in an embodiment of this utility model;

[0051] Figure 9 This is a schematic diagram of the combination of the second support column and the I-shaped support in an embodiment of this utility model;

[0052] Figure 10 This is a schematic diagram of the horizontal sliding support mechanism in an embodiment of the present invention;

[0053] Figure 11 This is a schematic diagram of the combination of the U-shaped plate, servo actuator, and fixture in an embodiment of this utility model;

[0054] Figure 12 This is a schematic diagram of the structure of the simple branch pipe in an embodiment of this utility model;

[0055] Figure 13 This is a schematic diagram of the structure of the beam in an embodiment of this utility model.

[0056] Explanation of markings in the diagram:

[0057] 1—Vertical rotation mechanism, 2—First support column, 3—Horizontal sliding support mechanism, 4—Simple branch pipe, 5—Specimen, 6—Clamp, 7—U-shaped plate, 8—Actuator, 9—Mounting beam, 10—Bolt, 11—Supporting platform, 12—Controller, 13—Wire;

[0058] 101—Rotating tube, 102—Brake assembly, 103—Support ball sleeve;

[0059] 1011—Connecting ball, 1012—First support plate, 1013—Wing plate;

[0060] 1021—Support frame; 1022—Second support plate; 1023—First cover plate; 1024—Positioning pin;

[0061] 1031—Arc-shaped plate, 1032—First base plate;

[0062] 301—Top plate, 302—Second support column, 303—I-shaped support;

[0063] 3031—Second cover plate, 3032—Second bottom plate;

[0064] 601—Second fisheye ring;

[0065] 801—Sensor, 802—First fisheye ring. Detailed Implementation

[0066] The present invention will now be described in detail with reference to specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0067] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., used to describe a common object only indicate different instances of the same object, and are not intended to imply that the objects described in this way must be in a given order, whether temporally, spatially, sequentially, or in any other way.

[0068] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0069] Example:

[0070] A three-dimensional adjustable loading test system for curtain wall point-supported nodes, such as Figures 1 to 4 As shown, the device includes an actuator 8, a vertical rotation mechanism 1, a clamp 6, a simple branch pipe 4, a support platform 11, and a horizontal sliding support mechanism 3. The support platform 11 is connected to the vertical rotation mechanism 1 via a first support column 2. The support platform 11 supports the entire device. The vertical rotation mechanism 1 is connected to the mounting beam 9 and supports the mounting beam 9. The actuator 8 is installed on the mounting beam 9. The loading end of the actuator 8 is connected to the clamp 6 via a U-shaped plate 7. The clamp 6 holds the specimen 5. The support platform 11 is connected to the simple branch pipe 4 via the horizontal sliding support mechanism 3. The simple branch pipe 4 constrains the boundary of the specimen 5.

[0071] In this embodiment, the actuator 8 is an electric servo actuator. The actuator 8 is connected to the controller 12 of the electric servo via the wire 13 to ensure that the electric servo control subsystem can perform loading normally. The controller 12 supports multiple loading regimes, including monotonic loading, monotonic reciprocating cyclic loading, fatigue loading, etc. The rotating ends of a pair of vertical rotating mechanisms 1 are connected to both ends of a mounting beam 9.

[0072] like Figures 5 to 7 As shown, the vertical rotation mechanism 1 includes a rotating tube 101, a braking assembly 102 and a support ball sleeve 103. The braking assembly 102 is provided on the rotating tube 101. The rotating tube 101 is hinged to the support ball sleeve 103. The braking assembly 102 cooperates with the support ball sleeve 103 for braking.

[0073] The braking assembly 102 includes a positioning pin 1024, and an arc-shaped plate 1031 is provided on the support ball sleeve 103. The arc-shaped plate 1031 has several small holes, and the positioning pin 1024 is embedded in the small holes of the arc-shaped plate 1031 for braking.

[0074] In this embodiment, the upper outer surface of the support ball sleeve 103 is welded to the arc plate 1031 as a whole by three support rods, and the scale of the arc plate 1031 has a range of 90°.

[0075] The braking assembly 102 also includes a support frame 1021, a second support plate 1022, and a first cover plate 1023. The rotating tube 101 is provided with the support frame 1021 and the second support plate 1022. The first cover plate 1023 is L-shaped. The extended part of the first cover plate 1023 is hooked into the inner groove of the support frame 1021, and the extended part is pressed against the positioning pin 1024. The positioning pin 1024 is L-shaped. The flat part of the positioning pin 1024 is mounted on the second support plate 1022, and the insert part is embedded in the small hole of the arc plate 1031. The first cover plate 1023 presses the positioning pin 1024 to prevent free rotation between the rotating tube 101 and the support ball sleeve 103.

[0076] In this embodiment, a support frame 1021 and a second support plate 1022 are welded onto the rotating tube 101;

[0077] The rotating shaft end of the rotating tube 101 is provided with a connecting ball 1011, and the rotating tube 101 is connected to the supporting ball sleeve 103 through the connecting ball 1011 to form a ball joint connection;

[0078] In this embodiment, a connecting ball 1011 is welded to the rotating shaft end of the rotating tube 101;

[0079] A scale is provided on the arc plate 1031, and each scale line of the scale corresponds one-to-one with the small hole of the arc plate 1031.

[0080] In this embodiment, a scale is provided on the outer surface of the arc plate 1031;

[0081] A first base plate 1032 is provided under the support ball sleeve 103. The first base plate 1032 is installed on the first support column 2. The vertical rotation mechanism 1 is installed on the first support column 2 through the support ball sleeve 103 and connected to the support platform 11, which increases the height of the vertical rotation mechanism 1.

[0082] In this embodiment, the lower outer surface of the support ball sleeve 103 is welded to the first base plate 1032 as a whole by a support rod and two triangular plates on both sides of the support rod. The first base plate 1032 is connected to the first support column 2 by bolts 10, and the first support column 2 is connected to the support platform 11 by bolts 10.

[0083] like Figure 13 As shown, the rotating end of the rotating tube 101 is provided with a wing plate 1013, the side of the rotating tube 101 is provided with a first support plate 1012, the web of the mounting beam 9 is mounted on the wing plate 1013, and the wall panel is mounted on the first support plate 1012.

[0084] In this embodiment, a wing plate 1013 is welded to the rotating end of the rotating tube 101 to close the rotating end of the rotating tube 101. The wing plate 1013 is rectangular in shape. A first support plate 1012 is welded to both sides of the rotating tube 101. The first support plate 1012 is semi-circular in shape. The mounting beam 9 is a box beam. A groove parallel to the length direction is opened on the web plate on one side of the mounting beam 9. The wing plate 1013 is inserted into the groove of the mounting beam 9 to ensure that the rotating tube 101 slides in the mounting beam 9 without falling off. Several parallel through holes are opened at the edges of both ends of the mounting beam 9. The first support plate 1012 is connected to the mounting beam 9 by bolts.

[0085] like Figures 8 to 10 As shown, the horizontal sliding support mechanism 3 includes a second support column 302 and an I-shaped support 303. The I-shaped support 303 has a horizontal groove. A second base plate 3032 is provided under the second support column 302. The second base plate 3032 is adapted to the horizontal groove of the I-shaped support 303 to ensure that the second support column 302 can slide horizontally on the I-shaped support 303. A second cover plate 3031 is provided on both sides of the horizontal groove on the I-shaped support 303. The second cover plate 3031 presses on the second base plate 3032 and the I-shaped support 303 to ensure that the second base plate 3032 slides in the horizontal groove of the I-shaped support 303 without falling off.

[0086] In this embodiment, the upper surface of the I-shaped support 303 is provided with a horizontal groove parallel to the length direction, and the lower end of the second support column 302 is provided with a second base plate 3032. The shape of the second base plate 3032 is rectangular, and the shape of the second cover plate 3031 is also rectangular. The second cover plate 3031 is connected to the I-shaped support 303 by bolts 10, and the I-shaped support 303 is connected to the support platform 11 by bolts 10.

[0087] Small protrusions are provided on both sides of the upper surface of the second base plate 3032, and small protrusions are also provided on one side of the lower surface of the second cover plate 3031;

[0088] In this embodiment, the outer edges of both sides of the upper surface of the second base plate 3032 are provided with several regular small protrusions with equal spacing, and the outer edges of one side of the lower surface of the second cover plate 3031 are also provided with several regular small protrusions with equal spacing.

[0089] like Figure 12 As shown, the horizontal sliding support mechanism 3 also includes a top plate 301, which is connected to the second support column 302. A simple branch pipe 4 is mounted on the top plate 301. A slot is opened on the simple branch pipe 4. The simple branch pipes 4 are orthogonally connected to each other through the slot. The overlapping simple branch pipes 4 clamp the edge part of the specimen 5.

[0090] In this embodiment, the top plate 301 is connected to the upper end of the second support column 302 by bolts 10, and the overlapping simple branch pipes 4 are connected to the top plate 301 by bolts 10. The two ends of the simple branch pipes 4 are provided with symmetrical slots.

[0091] like Figure 11 As shown, a sensor 801 is sleeved on the loading end of the actuator 8. The sensor 801 is ball-jointed to the rod end of the first fisheye ring 802. One end of the U-shaped plate 7 is hinged to the eye end of the first fisheye ring 802, and the other end is hinged to the eye end of the second fisheye ring 601. The second fisheye ring 601 is ball-jointed to the clamp 6. The clamp 6 holds the specimen 5.

[0092] In this embodiment, the mounting beam 9 is connected to the actuator 8 by bolts 10. The support plate of the actuator 8 has four through holes. Correspondingly, the mid-span area of ​​the mounting beam 9 also has four through holes, and a larger circular through hole is located at the center. The actuator 8 is connected to the mounting beam 9 by bolts 10, ensuring that the loading rod of the actuator 8 can pass through the circular through hole of the mounting beam 9. The web of the mounting beam 9 is thick enough to support the actuator 8 under normal loading without deformation. The sensor 801 is connected to the controller 12 of the electric servo through wires 13 to ensure that the electric servo control subsystem can collect data normally. One end of the U-shaped plate 7 is hinged to the eye end of the first fisheye ring 802 by inserting bolts 10, and the other end is hinged to the eye end of the second fisheye ring 601 by inserting bolts 10.

[0093] In this embodiment, bolt 10 is an internal hex bolt.

[0094] A three-dimensional adjustable loading test method for curtain wall point-supported nodes, using the above-mentioned system to conduct three-dimensional adjustable loading tests on curtain wall point-supported nodes, the specific steps are as follows:

[0095] S1. First, fix the four horizontal sliding support mechanisms 3 to the support platform 11 using bolts 10. Loosen the bolts 10 connecting the second cover plate 3031 and the I-beam support 303 to ensure the second support column 302 can slide on the I-beam support 303. Fix the top plate 301 to the second support column 302 using bolts 10 and tighten the bolts 10. Connect the four simple support pipes 4 together through the clamps on them, adjusting the second support column 302 while connecting the simple support pipes 4. Position the specimen 5 until the holes on the overlapping simple branch pipe 4 are aligned with the holes on the top plate 301. Then place the specimen 5 on the overlapping four simple branch pipes 4. Then overlap the other four simple branch pipes 4 together and place them on the specimen 5. Use bolts 10 to fix the overlapping simple branch pipes 4 of the specimen 5 to the top plate 301. Tighten the bolts 10 connecting the second cover plate 3031 and the I-shaped support 303. At this time, the second support column 302 has been tightly fixed to the I-shaped support 303.

[0096] S2. By moving the first cover plate 1023 embedded in the support frame 1021, the part pressing on the positioning pin 1024 is retracted. Then, the positioning pin 1024 stuck on the arc plate 1031 is pulled out. At this time, the rotating tube 101 can rotate around the central axis of the ball joint. Select the angle to be rotated of the rotating tube 101, insert the positioning pin 1024 into the hole of the corresponding angle on the scale of the arc plate 1031, and then move the first cover plate 1023 embedded in the support frame 1021 to ensure that the part of the first cover plate 1023 protruding is pressed on the positioning pin 1024. In this way, the rotating tube 101 is fixed.

[0097] S3. Using bolts 10, pass the second fisheye ring 601 and one end of the U-shaped plate 7 hinged on the clamp 6 holding the specimen 5 through their corresponding holes and tighten the nuts. Adjust the loading length of the actuator 8 through the controller 12 to ensure that the hole on the first fisheye ring 802 hinged to the actuator 8 is aligned with the other end of the U-shaped plate 7. Use bolts 10 to pass through their corresponding holes and tighten the nuts. In this way, the connection between the actuator 8 and the clamp 6 is completed, and the test can begin.

[0098] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A curtain wall point-supported node three-dimensional adjustable loading test system, characterized in that, The system includes an actuator (8), a vertical rotation mechanism (1), a clamp (6), a simple branch pipe (4), a support platform (11), and a horizontal sliding support mechanism (3). The support platform (11) is connected to the vertical rotation mechanism (1) through a first support column (2). The vertical rotation mechanism (1) is connected to a mounting beam (9). An actuator (8) is provided on the mounting beam (9). The loading end of the actuator (8) is connected to the clamp (6) through a U-shaped plate (7). The clamp (6) holds the specimen (5). The support platform (11) is connected to the simple branch pipe (4) through the horizontal sliding support mechanism (3). The simple branch pipe (4) constrains the boundary of the specimen (5). The vertical rotation mechanism (1) includes a rotating tube (101), a braking assembly (102), and a support ball sleeve (103). The rotating tube (101) is provided with the braking assembly (102). The rotating tube (101) is hinged to the support ball sleeve (103). The braking assembly (102) cooperates with the support ball sleeve (103) for braking. The braking assembly (102) includes a positioning pin (1024), and an arc-shaped plate (1031) is provided on the support ball sleeve (103). The arc-shaped plate (1031) has a hole, and the positioning pin (1024) is embedded in the hole of the arc-shaped plate (1031) for braking.

2. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The braking assembly (102) further includes a support frame (1021), a second support plate (1022), and a first cover plate (1023). The rotating tube (101) is provided with a support frame (1021) and a second support plate (1022). The first cover plate (1023) is L-shaped. The extended part of the first cover plate (1023) is hooked into the inner groove of the support frame (1021), and the extended part is pressed against the positioning pin (1024). The positioning pin (1024) is L-shaped. The flat part of the positioning pin (1024) is mounted on the second support plate (1022), and the insert part is embedded in the small hole of the arc plate (1031). The first cover plate (1023) presses the positioning pin (1024).

3. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The rotating shaft end of the rotating tube (101) is provided with a connecting ball (1011), and the rotating tube (101) is connected to the supporting ball sleeve (103) through the connecting ball (1011) to form a ball joint connection.

4. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, A scale is provided on the arc-shaped plate (1031), and the scale lines of the scale correspond to the holes of the arc-shaped plate (1031).

5. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The support ball sleeve (103) is provided with a first base plate (1032), which is installed on the first support column (2). The vertical rotation mechanism (1) is installed on the first support column (2) through the support ball sleeve (103) and connected to the support platform (11).

6. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The rotating end of the rotating tube (101) is provided with a wing plate (1013), and the side of the rotating tube (101) is provided with a first support plate (1012). The web of the mounting beam (9) is mounted on the wing plate (1013), and the wall panel is mounted on the first support plate (1012).

7. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The horizontal sliding support mechanism (3) includes a second support column (302) and an I-shaped support (303). The I-shaped support (303) has a groove. A second base plate (3032) is provided under the second support column (302). The second base plate (3032) is adapted to the groove of the I-shaped support (303). A second cover plate (3031) is provided on both sides of the groove on the I-shaped support (303). The second cover plate (3031) presses on the second base plate (3032) and the I-shaped support (303).

8. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 7, characterized in that, The upper surface of the second base plate (3032) has protrusions on both sides, and the lower surface of the second cover plate (3031) has a protrusion on one side.

9. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, The horizontal sliding support mechanism (3) also includes a top plate (301), which is connected to the second support column (302). A simple branch pipe (4) is mounted on the top plate (301). The simple branch pipe (4) has a slot. The simple branch pipes (4) are orthogonally connected to each other through the slot. The overlapping simple branch pipes (4) clamp the edge part of the specimen (5).

10. The curtain wall point-supported node three-dimensional adjustable loading test system according to claim 1, characterized in that, A sensor (801) is sleeved on the loading end of the actuator (8). The sensor (801) is ball-jointed to the rod end of the first fisheye ring (802). One end of the U-shaped plate (7) is hinged to the eye end of the first fisheye ring (802), and the other end is hinged to the eye end of the second fisheye ring (601). The second fisheye ring (601) is ball-jointed to the clamp (6), and the clamp (6) holds the specimen (5).

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