A method for testing the physical properties of building curtain walls

Abstract

The present invention discloses a method for testing the physical properties of building curtain walls, and relates to the technical field of curtain wall performance testing. In order to solve the problem of needing to replace different types of performance testing devices to test the physical properties of building curtain walls, the method specifically includes the following steps: preparation before operation: detecting whether the function of the test frame is normal; adjusting the limit range of the clamping part according to the actual size of the test curtain wall body, and then installing the test curtain wall body on the clamping part; impact resistance performance test: adjusting the orientation of the position adjustment part according to the impact point to be tested of the test curtain wall body, and then performing an impact test on the test curtain wall body through the retractable structure to control the gravity block; in-plane deformation performance test: installing a pressure point at the bottom of the hollow partition plate according to the position distribution point to be tested of the test curtain wall body. The present invention does not require people to frequently operate the curtain wall to replace different performance testing equipment, and the entire testing process is convenient and quick to operate, thereby improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of curtain wall performance testing, and in particular to a method for testing the physical properties of a building curtain wall. Background Art

[0002] A building curtain wall is a protective structure suspended from the outside of a building's main structure. It's a special structural system constructed from materials like glass and metal. It's typically used on the outside of the main structure, generally covering its surface. Due to its aesthetic appeal, excellent lighting, lightweight construction, and short construction schedule, curtain walls have quickly gained widespread application across various architectural fields. The performance of a building's curtain wall directly impacts a building's safety, aesthetics, energy conservation, and environmental protection, among other aspects. Key indicators for curtain wall testing include air tightness, water tightness, wind pressure resistance, and in-plane deformation performance. These indicators not only reflect the quality of the curtain wall but also guarantee the safety of the curtain wall project.

[0003] In the prior art, when testing the physical properties of building curtain walls, such as air tightness, water tightness, wind pressure resistance, and in-plane deformation performance, each performance testing device is independent and separate. That is, only one or two physical properties of the building curtain wall can be tested. Therefore, it is necessary to frequently replace multiple different types of performance testing devices to obtain more comprehensive building curtain wall physical performance test results. This process is time-consuming and labor-intensive, seriously affecting the testing speed. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a method for testing the physical properties of building curtain walls.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for testing the physical properties of a building curtain wall comprises the following steps:

[0007] S1: Preparation before operation: Check whether the function of the test rack is normal;

[0008] S2: Adjust the limit range of the clamping part according to the actual size of the test curtain wall body, and then install the test curtain wall body on the clamping part;

[0009] S3: Impact resistance test: adjust the position of the position adjustment part according to the impact point to be tested on the test curtain wall body, and then control the gravity block through the retractable structure to perform an impact test on the test curtain wall body;

[0010] S4: In-plane deformation performance test: According to the distribution of the test position of the test curtain wall body, a pressure point is installed at the bottom of the hollow partition plate. A pressure part is installed on the test frame. Then the pressure part is controlled to drive the hollow partition plate to press down the test curtain wall body. At the same time, the deformation of the test curtain wall body is detected using a displacement meter.

[0011] S5: Wind pressure resistance test: After installing the pressure part on the test frame, move the airbag to the top of the test curtain wall. Insert the input end of the airbag into the connection hole connected to the second air supply pipe. Start the hot air blower to deliver gas to the airbag to fill and pressurize it. Raise the test pressure to the wind load design value W. Record the deformation or damage of the test curtain wall.

[0012] S6: Airtightness test: After installing the pressure-applying unit on the test frame, insert one end of the folded gas pipe into the connection hole connected to the gas pipe. Adjust the bottom surface of the hollow partition plate to fit tightly with the top surface of the test curtain wall through the pressure-applying unit. Start the hot air blower to blow air toward the upper surface of the test curtain wall. After the pressure gauge detects that the air pressure in the hollow partition plate reaches the set value, turn off the hot air blower. Observe the change in air pressure in the hollow partition plate within the predetermined time.

[0013] S7: Watertightness test: After installing the pressure part on the test frame, insert one end of the folded water pipe into the connection hole connected to the liquid infusion pipe. Simultaneously start the water pump and hot air blower to perform a wind-and-rain watertightness test on the surface of the test curtain wall below. Observe the water permeability of the bottom of the test curtain wall to obtain the watertightness test result.

[0014] S8: Thermal performance test: After installing the pressure part on the test frame, adjust the hollow partition plate downward until it is close to the test curtain wall body, so that the temperature sensor is in contact with the upper and lower surfaces of the test curtain wall body. Start the hot air blower to deliver hot air to the upper surface of the test curtain wall body, and observe the parameters of the upper and lower surfaces of the test curtain wall body detected by the temperature sensor within a preset time;

[0015] S9: Airborne sound insulation test: Remove the test curtain wall body from the clamping part and move it into the placement cavity for fixation. Turn the adjustment hub below the test curtain wall body so that the sound column makes a sound during passive rotation. Observe the detection parameters of the sound sensor above the test curtain wall body.

[0016] Preferably, the placement cavity is provided on the bottom inner wall of the test rack, and the box door is slidably connected to the outer wall of the test rack close to the placement cavity;

[0017] An elastic ring is fixedly connected to the inner wall of the placement cavity at the bottom;

[0018] A liquid collecting cavity is provided on the inner wall of the bottom of the test rack above the placement cavity.

[0019] Preferably, the clamping portion is provided on a side surface of the test frame opposite to the placement cavity, and the clamping portion includes an adjustment column provided on an outer wall of one side of the test frame, a guide column provided on an outer wall of one side of the test frame, and a clamping block rotatably connected to one end of the adjustment column and the guide column;

[0020] Extension plates are fixedly connected to opposite sides of the two clamping blocks. One end of the two sets of extension plates is provided with a same support plate. The bottom end of the displacement meter is fixedly connected to the top surface of the support plate.

[0021] Preferably: a filter plate is fixedly connected to the inner wall of the support plate near the middle;

[0022] The bottom outer wall of the hollow partition plate and the top outer wall of the support plate are both fixedly connected with elastic pieces, and one side surface of the temperature sensor is fixedly connected to one end of the elastic piece.

[0023] Preferably, the gravity block is connected to the top outer wall of the test rack through a position adjustment portion, the position adjustment portion comprising a movable groove provided on the top outer wall of the test rack, a support rod slidably connected to the inner wall of the movable groove through a slider, a mounting plate slidably connected to the inner wall of the support rod, and a retractable structure provided on the top surface of the mounting plate;

[0024] Limiting holes are provided on one side of the mounting plate and the support rod, and the same limiting column is provided on the inner wall of the limiting holes located at opposite positions on the mounting plate and the support rod;

[0025] The retracting and extending structure includes a line roller rotatably connected to one side of the mounting plate, a motor slidably connected to the inner wall of the bottom of the mounting plate through a sliding block, and a top support member fixed to the sliding block and the opposite side of the mounting plate. The output shaft of the motor is connected to the input end of the line roller through a coupling, and the top of the gravity block is connected to one end of a connecting rope arranged on the outer wall of the line roller.

[0026] Preferably, positioning grooves are provided on opposite sides of the test frame, the pressure applying portion is slidably connected to the inner wall of the positioning groove, and the pressure applying portion includes a fixed plate slidably connected to the inner wall of the positioning groove, a telescopic member fixedly connected to the outer wall of the bottom of the fixed plate, and a hollow partition plate fixedly connected to the extended end of the telescopic member;

[0027] An air hole is provided on the outer wall of the bottom of the hollow partition plate, an extrusion block is provided on the inner wall of the air hole, and a pressure sensor is fixedly connected to the bottom surface of the extrusion block.

[0028] Preferably, the bottom outer wall of the hot air blower is connected to the outer wall of one side of the test rack through a support block, and two or more connection holes are provided on the outer wall of the test rack on the side facing away from the hot air blower. One end of the first gas pipe and the second gas pipe are respectively fixedly connected to the output end of the hot air blower, and the other end of the first gas pipe and the second gas pipe are respectively fixed to one end of two of the connection holes.

[0029] Valves are fixedly connected to the outer walls of the gas transmission pipe 1 and the gas transmission pipe 2;

[0030] The bottom end of the pressure gauge is fixedly connected to the top outer wall of the hollow partition plate.

[0031] Preferably, the air bag is arranged on the inner wall of the placement cavity, and the input end of the air bag is adapted to the inner diameter of the connection hole connected to the second air delivery pipe;

[0032] The bottom outer wall of the water pump is connected to the outer wall of one side of the test frame through the top plate, the input end of the water pump is connected to the inner wall of the liquid collecting chamber through a conduit, and the output end of the water pump is fixed to the inner wall of one of the connecting holes through an infusion tube.

[0033] Preferably, the bottom ends of the folded water supply pipe and the folded gas supply pipe are respectively fixedly connected to the top surface of the hollow partition plate, one end of the folded gas supply pipe is arranged on the inner wall of the connection hole connected to the gas supply pipe, and one end of the folded water supply pipe is arranged on the inner wall of the connection hole connected to the liquid supply pipe;

[0034] The outer wall of the bottom of the hollow partition plate located at the four corners is fixedly connected with a sprinkler head, and the input end of the sprinkler head is connected to one end of the water delivery folding pipe through a conduit.

[0035] Preferably: one end of the sound column is rotatably connected to an inner wall of the test frame at the bottom, one end of the adjustment hub is rotatably connected to an outer wall of the test frame, and one end of the adjustment hub is connected to one end of the sound column through a connecting shaft; one side of the sound sensor is fixedly connected to the top inner wall of the placement cavity.

[0036] The beneficial effects of the present invention are:

[0037] 1. The test rack of the present invention integrates multiple physical performance testing functions such as wind pressure resistance, water tightness, air tightness, curtain wall in-plane deformation, thermal performance, airborne sound insulation, and impact resistance. There is no need for people to frequently operate the curtain wall to replace testing equipment with different performance. The entire testing process is convenient and quick to operate, thereby improving the testing efficiency.

[0038] 2. The present invention sets a position adjustment part to adjust the front and rear position of the support rod in the movable groove, and then adjusts the left and right position of the mounting plate in the support rod, and uses limit columns to insert limit columns into the limit holes in relative positions on the mounting plate and the support rod, so that the test orientation of the gravity block is fixed and the adjustment is convenient, which makes it easy to control the gravity block to perform impact tests on different positions of the curtain wall.

[0039] 3. The present invention provides a clamping part, appropriately adjusts the spacing of the clamping parts according to the width of the test curtain wall body, then places the test curtain wall body on the top surface of the clamping part, and again adjusts one side of the clamping part to fit tightly against the two side surfaces of the test curtain wall body through the adjusting column, thereby completing the fixing of the test curtain wall body, ensuring the firmness of the test curtain wall body during the performance test and reducing the error during the test.

[0040] 4. The present invention installs extrusion blocks in a distributed manner in the air holes at the bottom of the hollow partition plate according to the actual size of the test curtain wall body, and is applicable to curtain walls of various sizes; through the cooperation of the pressure-applying part and the displacement meter, the deformation performance of the test curtain wall body in the plane can be checked, and the detection is accurate; through the cooperation of the airbag bag and the displacement meter, the wind pressure resistance of the entire curtain wall system under the action of wind load can be tested, and the stiffness and strength of the test curtain wall body can be tested. It is simple and fast and suitable for large-scale promotion and use.

[0041] 5. The present invention provides a hot air blower and a water pump and other structures to sequentially test the air tightness, water tightness and thermal performance of the test curtain wall body. One machine can be used for multiple purposes, saving the manufacturing cost of the test frame. Moreover, during the test, the water will directly fall or pass through the filter plate and then fall back into the liquid collecting chamber for collection, so that the curtain wall water tightness test can be carried out using circulating water, effectively avoiding the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0043] Figure 1 A schematic flow chart of a method for testing the physical properties of building curtain walls proposed in the present invention;

[0044] Figure 2 A schematic diagram of the expanded structure of a test rack for a building curtain wall physical performance testing method proposed in the present invention;

[0045] Figure 3 This is a schematic diagram of the front-view unfolded structure of a test rack in use for a building curtain wall physical performance testing method proposed by the present invention;

[0046] Figure 4 This is a schematic diagram of the structure of the test rack of the building curtain wall physical performance testing method proposed by the present invention when it is in use;

[0047] Figure 5 This is a schematic diagram of the top view of the structure of a test rack in use for a method for testing the physical properties of building curtain walls proposed in the present invention;

[0048] Figure 6 A schematic diagram of a top view of the support plate structure of a test rack for a building curtain wall physical performance testing method proposed in the present invention;

[0049] Figure 7 A schematic diagram of the bottom-up structure of a hollow partition plate in a test rack for a method for testing the physical properties of a building curtain wall proposed in the present invention;

[0050] Figure 8 This is a schematic diagram of the enlarged structure of part A of the test frame of a building curtain wall physical performance testing method proposed by the present invention;

[0051] Figure 9 The present invention provides a circuit flow diagram of a test rack for testing the physical properties of building curtain walls.

[0052] In the figure: 1 test frame, 2 connecting hole, 3 positioning groove, 4 support rod, 5 gravity block, 6 test curtain wall body, 7 clamping block, 8 box door, 9 sound column, 10 elastic ring, 11 placement cavity, 12 air bag, 13 support plate, 14 extrusion block, 15 fixing plate, 16 limit hole, 17 telescopic member, 18 pressure gauge, 19 hollow partition plate, 20 sound sensor, 21 air hole, 22 adjustment column, 23 water pump, 24 hot air blower, 25 adjustment hub, 26 liquid collecting cavity, 27 moving groove, 28 mounting plate, 29 temperature sensor, 30 displacement meter, 31 filter plate, 32 extension plate, 33 guide column, 34 sprinkler head, 35 pressure sensor, 36 top support member, 37 motor, 38 line roller. DETAILED DESCRIPTION

[0053] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0054] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0056] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0057] Additionally, the term "plurality" shall mean two or more.

[0058] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0059] Example 1:

[0060] A method for testing the physical properties of building curtain walls, such as Figure 1-9 As shown, the following steps are included:

[0061] S1: Preparation before operation: Check whether the function of the test rack 1 is normal;

[0062] S2: Adjust the limit range of the clamping portion according to the actual size of the test curtain wall body 6, and then install the test curtain wall body 6 on the clamping portion;

[0063] S3: Impact resistance test: The position of the position adjustment part is adjusted according to the impact point to be tested on the test curtain wall body 6, and then the gravity block 5 is controlled by the retractable structure to perform an impact test on the test curtain wall body 6;

[0064] S4: In-plane deformation performance test: According to the distribution of the test position of the test curtain wall body 6, a pressure point is installed at the bottom of the hollow partition plate 19, and a pressure part is installed on the test frame 1. Then, the pressure part is controlled to drive the hollow partition plate 19 to press down the test curtain wall body 6. At the same time, the displacement meter 30 is used to detect the deformation of the test curtain wall body 6;

[0065] S5: Wind Pressure Resistance Test: After installing the pressure-applying unit on the test frame 1, move the airbag 12 above the test curtain wall body 6. Insert the input end of the airbag 12 into the connection hole 2 connected to the gas pipe 2. Start the hot air blower 24 to deliver gas into the airbag 12 to fill and pressurize it. Raise the test pressure to the wind load design value W. Record any deformation or damage to the test curtain wall body 6.

[0066] S6: Airtightness test: After installing the pressure-applying unit on the test rack 1, insert one end of the folded gas pipe into the connection hole 2 connected to the gas pipe 1. The pressure-applying unit adjusts the bottom surface of the hollow partition plate 19 to fit tightly with the top surface of the test curtain wall body 6. Start the hot air blower 24 to blow air toward the upper surface of the test curtain wall body 6. After the pressure gauge 18 detects that the air pressure in the hollow partition plate 19 reaches the set value, turn off the hot air blower 24 and observe the change in air pressure in the hollow partition plate 19 within a predetermined time.

[0067] S7: Watertightness Test: After installing the pressure-applying unit on the test frame 1, insert one end of the folded water supply tube into the connection hole 2 connected to the liquid supply tube. Simultaneously start the water pump 23 and the hot air blower 24 to perform a wind-and-rain-watertightness test on the surface of the test curtain wall body 6 below. Observe the water permeability of the bottom of the test curtain wall body 6 to obtain the watertightness test result.

[0068] S8: Thermal Performance Testing: After installing the pressure portion on the test frame 1, adjust the hollow partition plate 19 downward until it is close to the test curtain wall body 6, so that the temperature sensor 29 is in contact with the upper and lower surfaces of the test curtain wall body 6. Start the hot air blower 24 to deliver hot air to the upper surface of the test curtain wall body 6, and observe the upper and lower surface parameters of the test curtain wall body 6 detected by the temperature sensor 29 within a preset time.

[0069] S9: Airborne sound insulation test: Remove the test curtain wall body 6 from the clamping part and move it into the placement cavity 11 to fix it. Turn the adjustment hinge 25 below the test curtain wall body 6 so that the sound column 9 makes a sound during passive rotation. Observe the detection parameters of the sound sensor 20 above the test curtain wall body 6.

[0070] During the impact resistance test, the distance between the gravity block 5 and the test curtain wall body 6 is ≥1.5m, and the weight of the gravity block 5 is 45-55kg;

[0071] When testing the in-plane deformation performance of curtain walls, in accordance with the provisions of GB / T18250-2000 "Test Method for In-Plane Deformation Performance of Building Curtain Walls" and Article 5.1.6 of GB / T 21086-2007 "Building Curtain Walls", the in-plane deformation performance grading index value should be no less than 3×1 / 800=1 / 267, and its in-plane deformation performance is level 2;

[0072] When testing the wind pressure resistance performance, according to the "Test Methods for Airtightness, Watertightness and Wind Pressure Resistance of Building Curtain Walls" GB / T15227-2007, the wind pressure is taken according to the Chinese Load Code GB 50009-2012, and the test pressure is increased step by step in the order of no more than 250Pa level until it reaches the pressure value P1, which is 1 / 2 of the wind load standard value WK.

[0073] During the air tightness performance test, according to the "Test Methods for Airtightness, Watertightness and Wind Pressure Resistance of Building Curtain Walls" GB / T15227-2007, the test curtain wall body 6 is preliminarily pressurized at a pressure of 250 Pa for 5 minutes. The test is started after the pressure drops to zero. The additional air permeability of the hollow partition plate 19 should not exceed 20% of the total permeability.

[0074] When testing watertightness, the stable or fluctuating pressure method should be used according to the "Testing Methods for Airtightness, Watertightness and Wind Pressure Resistance of Building Curtain Walls" GB / T15227-2007. The water spraying volume should be ≥4L (m2·min). Spraying should be carried out for 10 minutes without pressure difference. The pressure should be increased to the watertightness index value that can be opened. The pressure should be stabilized for 10 minutes.

[0075] During the thermal performance test, according to the "Thermal Calculation Code for Building Doors, Windows and Glass Curtain Walls" JGJT151-2008 and the "Civil Building Thermal Design Code" GB50176-2016, the heat transfer coefficient K≤1.8W / (㎡·K).

[0076] When testing the airborne sound insulation performance, according to the "Grading and Testing Methods for Airborne Sound Insulation Performance of Building Doors and Windows" GB / T8485-2008, the curtain wall sound insulation performance level is Level 2, 30≤RW≤35.

[0077] The measurement error of the barometer 18 is ≤ 5% of the indicated value, and the accuracy of the displacement meter 30 is 0.25% of the full scale.

[0078] When used, this embodiment shortens the detection cycle and makes the entire detection process more convenient and quick.

[0079] Example 2:

[0080] A method for testing the physical properties of building curtain walls, such as Figure 2-3 、 Figure 5 and Figure 8As shown, in order to perform impact resistance performance testing on building curtain walls, this embodiment makes the following supplements on the basis of Example 1: the test frame 1 is concave in shape, and the top outer wall of the test frame 1 is connected to a gravity block 5 via a position adjustment portion. The position adjustment portion includes a movable groove 27 provided on the top outer wall of the test frame 1, a support rod 4 slidably connected to the inner wall of the movable groove 27 via a slider, a mounting plate 28 slidably connected to the inner wall of the support rod 4, and a retractable structure provided on the top surface of the mounting plate 28;

[0081] Preferably, in order to avoid the displacement of the mounting plate 28 during detection, a side surface of the mounting plate 28 and the support rod 4 is provided with a limit hole 16 of the same aperture, and the same limit column is inserted into the inner wall of the limit hole 16 located at opposite positions on the mounting plate 28 and the support rod 4; the front and rear position of the support rod 4 is adjusted in the movable groove 27, and then the left and right position of the mounting plate 28 is adjusted in the support rod 4, and the limit column is used to insert the limit column into the limit hole 16 located at opposite positions on the mounting plate 28 and the support rod 4, so that the test orientation of the gravity block 5 is fixed and the adjustment is convenient.

[0082] Furthermore, the retractable structure includes a wire roller 38 rotatably connected to one side of the mounting plate 28, a motor 37 slidably connected to the inner wall of the bottom of the mounting plate 28 through a sliding block, and a top support member 36 fixed to the sliding block and the side opposite to the mounting plate 28, and the output shaft of the motor 37 is connected to the input end of the wire roller 38 through a coupling, and the top of the gravity block 5 is connected to one end of the connecting rope wrapped around the outer wall of the wire roller 38; when the curtain wall impact resistance performance test is carried out, the motor 37 is started to drive the wire roller 38 to rotate, and then the gravity block 5 is adjusted to move upward by contracting the connecting rope. When it moves to the set height, the top support member 36 is started to push the motor 37 to move to one side through the sliding block, so that the output end of the motor 37 is away from the mounting plate 28, so that the wire roller 38 is free of any restraint at this time, and the gravity block 5 falls vertically rapidly under the action of centrifugal force, thereby performing impact tests on the curtain wall at different positions, which is easy to operate.

[0083] To fix the building curtain wall; Figure 2-4 and Figure 6 As shown, a placement cavity 11 is provided on the bottom inner wall of the test rack 1 for convenient storage of non-testing tools, and a box door 8 is slidably connected to the outer wall of the test rack 1 on one side close to the placement cavity 11; during the impact resistance test, other performance test structural parts that are not temporarily used can be placed in the placement cavity 11, which effectively saves space and is convenient for taking.

[0084] Preferably, the inner wall of the placement cavity 11 at the bottom is welded with an elastic ring 10 for squeezing and wrapping test pieces of different sizes;

[0085] The test rack 1 located above the placement cavity 11 is provided with a clamping part of the same structure on each opposite side, and the test curtain wall body 6 is placed on the top surface of the clamping part, and the clamping part includes an adjusting column 22 connected to the outer wall of one side of the test rack 1 by a thread, a guide column 33 inserted into the outer wall of one side of the test rack 1, and a clamping block 7 rotatably connected to one end of the adjusting column 22 and the guide column 33; the guide column 33 is provided to improve the stability of the clamping block 7 during movement; first, the spacing of the clamping part is appropriately adjusted according to the width of the test curtain wall body 6. Specifically, the adjusting column 22 is rotated to push the clamping block 7 forward, and then the test curtain wall body 6 is placed on the top surface of the clamping part, and the adjusting column 22 is used again to adjust one side of the clamping part to fit tightly against the two side surfaces of the test curtain wall body 6, thereby completing the fixing of the test curtain wall body 6.

[0086] In order to test the in-plane deformation performance of building curtain walls; Figure 2-7 and Figure 9 As shown, positioning grooves 3 are provided on opposite sides of the test frame 1, and a pressure-applying part is slidably connected to the inner wall of the positioning groove 3. The pressure-applying part includes a fixed plate 15 slidably connected to the inner wall of the positioning groove 3, a telescopic member 17 fixed to the outer wall of the bottom of the fixed plate 15 by bolts, and a hollow partition plate 19 fixed to the extended end of the telescopic member 17 by bolts. The telescopic member 17 can be a hydraulic cylinder, an electric push column, etc. The switch control end of the telescopic member 17 is electrically connected to the control module, and the model of the control module is ATMEGA169PA-AU; when installing, insert the two ends of the fixed plate 15 into the positioning groove 3 respectively, and then push them to the middle; when in use, start the telescopic member 17 to press the hollow partition plate 19 and its lower part downward to apply pressure to the top surface of the test curtain wall body 6 fixed on the clamping part.

[0087] Furthermore, a plurality of air holes 21 are formed on the outer wall of the bottom of the hollow partition plate 19. An extrusion block 14 is inserted into the inner wall of the air hole 21. A pressure sensor 35 is fixed to the bottom surface of the extrusion block 14 by bolts. The accuracy of the pressure sensor 35 is 2% of the indicated value. The model of the pressure sensor 35 is JYB-KB-CW2000. The signal output end of the pressure sensor 35 is electrically connected to the control module.

[0088] Furthermore, an extension plate 32 is fixed to the opposite side of the two clamping blocks 7 by bolts, and one end of the two sets of extension plates 32 is plugged with the same support plate 13. The top surface of the support plate 13 is fixed with a displacement meter 30 by bolts. The test end of the displacement meter 30 is attached to the bottom surface of the test curtain wall body 6. The model of the displacement meter 30 is CS2-I020. Before the operation, according to the actual size of the test curtain wall body 6, when it is fixed, the extension plate 32 automatically retracts and contracts in the support plate 13, so that the support plate 13 is always under the test curtain wall body 6, and then in the air The extrusion blocks 14 are installed in a distributed manner at intervals in the air holes 21 at the bottom of the core partition plate 19; during operation, the telescopic member 17 is started to drive the hollow partition plate 19 to press down until the bottom surface of the extrusion block 14 is in contact with and pushes the upper surface of the test curtain wall body 6, and the pressure sensor 35 detects the changes in the pressure of the test curtain wall body 6 in real time. When the set value is reached, the control module controls the telescopic member 17 to stop the operation, and then detects the parameters through the displacement meters 30 distributed at various locations on the bottom surface of the test curtain wall body 6 to check the deformation performance in the plane of the test curtain wall body 6, and the detection is accurate.

[0089] In order to test the wind pressure resistance of building curtain walls; Figure 2-4 and Figure 9 As shown, a hot air blower 24 is connected to the outer wall of one side of the test rack 1 through a support block. The switch control end of the hot air blower 24 is electrically connected to the control module. A plurality of connection holes 2 are opened on the outer wall of the test rack 1 on the side facing away from the hot air blower 24. The output end of the hot air blower 24 is fixedly connected to the gas pipe 1 and the gas pipe 2, respectively. One end of the gas pipe 1 and the gas pipe 2 are respectively fixed to one end of two of the connection holes 2.

[0090] Preferably, valves are fixed to the outer walls of both gas pipe 1 and gas pipe 2 by bolts;

[0091] Furthermore, an airbag bag 12 is placed on the inner wall of the placement cavity 11, and the input end of the airbag bag 12 is adapted to the inner diameter of the connecting hole 2 connected to the second gas pipe; after fixing the position of the pressure-applying part, the airbag bag 12 is moved from the placement cavity 11 to above the test curtain wall body 6, and the input end of the airbag bag 12 is adjusted to be inserted into the inner wall of the connecting hole 2 connected to the second gas pipe, and then the hot air blower 24 is started to transport gas to the airbag bag 12 through the second gas pipe for filling. The gradually expanding upper end surface of the airbag bag 12 is restricted by the hollow partition plate 19, so the upper surface of the test curtain wall body 6 below it is squeezed. After a period of wind load, the displacement of the displacement meter 30 is observed to detect the wind pressure resistance performance of the overall curtain wall system of the test curtain wall body 6 under the action of wind load, and the stiffness and strength of the test curtain wall body 6 are tested. It is simple and fast and suitable for large-scale promotion and use.

[0092] In order to test the airtightness of building curtain walls; Figure 3-4 and Figure 9As shown, the top surface of the hollow partition plate 19 is fixed with a water supply folding pipe and a gas supply folding pipe in sequence by bolts, wherein one end of the gas supply folding pipe is inserted into the inner wall of the connection hole 2 connected to the gas supply pipe 1;

[0093] Furthermore, a pressure gauge 18 is fixed to the top outer wall of the hollow partition plate 19 by bolts, and the signal output end of the pressure gauge 18 is electrically connected to the control module; after fixing the position of the pressure part, adjust one end of the gas supply folding pipe to insert into the inner wall of the connecting hole 2 connected to the gas supply pipe, and then pull out the extrusion block 14 facing the top of the test curtain wall body 6 according to the size of the test curtain wall body 6, so that the air hole 21 above the test curtain wall body 6 leaks, and then adjust the height of the hollow partition plate 19 through the pressure part so that its bottom surface, especially the air hole 21, is aligned with the top of the test curtain wall body 6. The surfaces of the test curtain wall body 6 are fitted together, and then the hot air blower 24 is started to transport gas to the hollow partition plate 19 through the gas pipe 1 and the gas folding pipe for uniform distribution. The evenly distributed gas is blown from the air hole 21 to the upper surface of the test curtain wall body 6 to which it is closely attached. After the pressure gauge 18 detects that the air pressure value of the hollow partition plate 19 reaches the set value, the control module controls to turn off the hot air blower 24, and then observes the air pressure in the hollow partition plate 19 within a predetermined time. If the air pressure becomes smaller, it indicates that there is a leakage in the air tightness of the test curtain wall body 6, and the leakage value can be used to determine whether the air tightness performance of the test curtain wall body 6 meets the standard.

[0094] In order to test the watertight performance of building curtain walls; Figure 3-7 As shown, a liquid collecting chamber 26 for collecting the sprayed liquid is formed on the bottom inner wall of the test frame 1 above the placement chamber 11; a water pump 23 is connected to one outer wall of the test frame 1 through the top plate, the input end of the water pump 23 is connected to the inner wall of the liquid collecting chamber 26 through a conduit, and the output end of the water pump 23 is fixed to the inner wall of one of the connecting holes 2 through a liquid infusion tube;

[0095] Preferably, a filter plate 31 is fixed to the middle portion of the support plate 13 by bolts to facilitate the passage of liquid;

[0096] Furthermore, one end of the folded water supply pipe is inserted into the inner wall of the connecting hole 2 connected to the liquid supply pipe; the outer wall of the bottom of the hollow partition plate 19 located at the four corners is fixed with a sprinkler head 34 by bolts, and the input end of the sprinkler head 34 is connected to one end of the folded water supply pipe through a conduit; after fixing the position of the pressure-applying part, the water pump 23 and the hot air blower 24 are started at the same time, and the surface of the test curtain wall body 6 below is subjected to a wind + rain water tightness test through the air hole 21 and the sprinkler head 34. The water falling from the four sides of the test curtain wall body 6 falls directly or passes through the filter plate 31 and then falls back into the liquid collecting chamber 26 for collection, so as to use circulating water for the curtain wall water tightness test, effectively avoiding the waste of water resources. After the end, the water permeability of the bottom of the test curtain wall body 6 is observed to obtain the water tightness test result.

[0097] In order to conduct thermal performance test on building curtain wall; Figure 6-7 As shown, the bottom outer wall of the hollow partition plate 19 and the top outer wall of the support plate 13 are welded with elastic parts, and a temperature sensor 29 is adhered to one end of the elastic part. The model of the temperature sensor 29 is WRM-101 series; after fixing the position of the pressure part and adjusting its use height, the temperature sensor 29 is respectively attached to the upper and lower surfaces of the test curtain wall body 6 under the support of the elastic part, and the hot air blower 24 is started to make the hot air flow output from the gas pipe 1, the gas folding pipe, and the air hole 21 in sequence, and sprayed to the upper surface of the test curtain wall body 6. After starting for a period of time, the hot air blower 24 is turned off, and then the parameters of the upper and lower sides of the test curtain wall body 6 detected by the temperature sensor 29 are compared to determine whether the heat transfer coefficient of the test curtain wall body 6 meets the standard.

[0098] In order to conduct airborne sound insulation test on building curtain walls; Figure 2 and Figure 4 As shown, a sound column 9 for emitting sound is rotatably connected to the inner wall of one side of the test frame 1 at the bottom, and an adjustment hub 25 is rotatably connected to the outer wall of one side of the test frame 1, and one end of the adjustment hub 25 is connected to one end of the sound column 9 through a connecting shaft; a sound sensor 20 is fixed to the top inner wall of the placement cavity 11 by bolts, and the model of the sound sensor 20 is KDS-1012; the test curtain wall body 6 is moved into the placement cavity 11, especially into the wrapping range of the elastic ring 10, so that the test curtain wall body 6 blocks the bottom end of the placement cavity 11, and then the box door 8 is closed, and then the adjustment hub 25 is manually rotated to drive the sound column 9 to rotate, so that it emits sound. After operating for a period of time, the detection parameters of the sound sensor 20 are observed, and then the test results of the airborne sound insulation performance of the curtain wall are obtained.

[0099] Before operation in this embodiment, the spacing of the clamping parts is appropriately adjusted according to the width of the test curtain wall body 6. The extension plate 32 automatically expands and contracts within the support plate 13 according to the width of the test curtain wall body 6. Specifically, the adjusting column 22 is rotated to push the clamping block 7 forward, and then the test curtain wall body 6 is placed on the top surface of the clamping part. The adjusting column 22 is again used to adjust one side of the clamping part to tightly fit the two side surfaces of the test curtain wall body 6, thereby completing the fixing work of the test curtain wall body 6.

[0100] When conducting the impact resistance performance test: adjust the front and rear positions of the support rod 4 in the movable groove 27, then adjust the left and right positions of the mounting plate 28 in the support rod 4, and use the limit columns to insert the limit columns into the limit holes 16 on the mounting plate 28 and the support rod 4 at relative positions, so that the test orientation of the gravity block 5 is fixed; start the motor 37 to drive the line roller 38 to rotate, and then adjust the gravity block 5 to move upward by contracting the connecting rope. When it moves to the set height, start the top support 36 and push the motor 37 to one side through the sliding block, so that the output end of the motor 37 is away from the mounting plate 28, so that the line roller 38 is not restrained at this time, and the gravity block 5 falls vertically rapidly under the action of centrifugal force, thereby performing an impact test on the curtain wall.

[0101] When conducting the in-plane deformation performance test: first, install the extrusion blocks 14 in a distributed manner in the air holes 21 at the bottom of the hollow partition plate 19, and then insert the two ends of the fixed plate 15 into the positioning groove 3 respectively and push them to the middle; start the telescopic member 17 to press the hollow partition plate 19 and its lower part downward until the bottom surface of the extrusion block 14 is in contact with and pushes the upper surface of the test curtain wall body 6. The pressure sensor 35 detects the changes in the pressure of the test curtain wall body 6 in real time. When the set value is reached, the control module controls the telescopic member 17 to stop the operation, and then detects the parameters through the displacement meters 30 distributed at various locations on the bottom surface of the test curtain wall body 6 to check the in-plane deformation performance of the test curtain wall body 6.

[0102] When conducting the wind pressure resistance performance test: after fixing the position of the pressure-applying part, move the airbag bag 12 from the placement cavity 11 to the top of the test curtain wall body 6, and adjust the input end of the airbag bag 12 to insert into the inner wall of the connecting hole 2 connected to the gas supply pipe 2, and then start the hot air blower 24 to deliver gas to the airbag bag 12 through the gas supply pipe 2 to fill it. The gradually expanding upper end surface of the airbag bag 12 is restricted by the hollow partition plate 19, so it squeezes the upper surface of the test curtain wall body 6 below it. After a period of wind load, the displacement of the displacement meter 30 is observed to detect the wind pressure resistance performance of the overall curtain wall system of the test curtain wall body 6 under the action of wind load.

[0103] When conducting the airtightness test: after fixing the position of the pressure part, adjust one end of the gas delivery folding tube to insert into the inner wall of the connecting hole 2 connected to the gas delivery pipe 1, and then pull out the extrusion block 14 facing the upper part of the test curtain wall body 6 according to the size of the test curtain wall body 6, so that the air holes 21 above the test curtain wall body 6 can leak out, and then adjust the height of the hollow partition plate 19 through the pressure part so that its bottom surface, especially the air holes 21, fits with the top surface of the test curtain wall body 6, and then start the hot air blower 24 to pass through the gas delivery pipe 1, The gas is evenly distributed through the gas delivery folding pipe into the hollow partition plate 19, and the evenly distributed gas is blown from the air hole 21 toward the upper surface of the test curtain wall body 6 to which it is closely attached. After the pressure gauge 18 detects that the air pressure value of the hollow partition plate 19 reaches the set value, the control module controls to turn off the hot air blower 24, and then observes the air pressure in the hollow partition plate 19 within a predetermined time. If the air pressure becomes smaller, it indicates that there is a leakage in the air tightness of the test curtain wall body 6, and the leakage value can be used to determine whether the air tightness performance of the test curtain wall body 6 meets the standard.

[0104] When conducting a watertight performance test: after fixing the position of the pressure-applying part, start the water pump 23 and the hot air blower 24 at the same time, and perform a wind + rain watertightness test on the surface of the test curtain wall body 6 below through the air holes 21 and the sprinkler head 34. After the test, the water permeability of the bottom of the test curtain wall body 6 is observed to obtain the watertightness test result; water falling from the periphery of the test curtain wall body 6 falls directly or passes through the filter plate 31 and then falls back into the liquid collecting chamber 26 for collection.

[0105] When conducting a thermal performance test: after fixing the position of the pressure part and adjusting its operating height, the temperature sensor 29 is respectively attached to the upper and lower surfaces of the test curtain wall body 6 under the support of the elastic member, and the hot air blower 24 is started, so that the hot air flow is output from the gas pipe 1, the gas folding pipe, and the air hole 21 in sequence, and sprayed toward the upper surface of the test curtain wall body 6. After starting for a period of time, the hot air blower 24 is turned off, and then the parameters of the upper and lower surfaces of the test curtain wall body 6 detected by the temperature sensor 29 are compared to determine whether the heat transfer coefficient of the test curtain wall body 6 meets the standard.

[0106] During the airborne sound insulation test, the test curtain wall body 6 is moved into the placement cavity 11, particularly within the envelope of the elastic ring 10, so that the test curtain wall body 6 blocks the bottom of the placement cavity 11. The door 8 is then closed, and the adjustment hinge 25 is manually rotated to rotate the sound column 9, causing it to emit a sound. After a period of operation, the detection parameters of the sound sensor 20 are observed to obtain the test results of the curtain wall's airborne sound insulation performance.

[0107] Note: The physical performance grade of the curtain wall is selected based on the geographical and climatic conditions of the area where the building is located, the building height, size, environment and importance of the building, combined with the specific provisions in the technical documents. Its classification complies with the provisions of the current national standard "Building Curtain Wall" GB / T 21086.

[0108] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A method for testing the physical properties of a building curtain wall, characterized in that: The following steps are involved: S1: Preparation before operation: Check whether the test rack (1) functions normally; S2: adjusting the limit range of the clamping portion according to the actual size of the test curtain wall body (6), and then installing the test curtain wall body (6) on the clamping portion; S3: Impact resistance test: adjusting the orientation of the position adjustment part according to the impact point to be tested of the test curtain wall body (6), and then performing an impact test on the test curtain wall body (6) by controlling the gravity block (5) via the retractable structure; S4: In-plane deformation performance test: according to the distribution points of the positions to be tested of the test curtain wall body (6), a pressure point is installed at the bottom of the hollow partition plate (19), a pressure part is installed on the test frame (1), and then the pressure part is controlled to drive the hollow partition plate (19) to press down the test curtain wall body (6), and at the same time, a displacement meter (30) is used to perform deformation detection on the test curtain wall body (6); S5: Wind pressure resistance performance test: After installing the pressure part on the test frame (1), move the airbag (12) to the top of the test curtain wall body (6), insert the input end of the airbag (12) into the connection hole (2) connected to the gas pipe 2, start the hot air blower (24) to deliver gas to the airbag (12) to fill and pressurize it, so that the test pressure rises to the wind load design value W, and record the deformation or damage of the test curtain wall body (6); S6: Airtightness test: After installing the pressure part on the test frame (1), insert one end of the gas delivery folding pipe into the connection hole (2) connected to the gas delivery pipe, adjust the bottom surface of the hollow partition plate (19) to fit tightly with the top surface of the test curtain wall body (6) through the pressure part, start the hot air blower (24) to deliver gas to the upper surface of the test curtain wall body (6), and turn off the hot air blower (24) after the pressure value of the hollow partition plate (19) reaches the set value detected by the pressure gauge (18). Observe the change of the air pressure in the hollow partition plate (19) within a predetermined time; S7: Watertightness test: After installing the pressure part on the test frame (1), insert one end of the water delivery folding pipe into the connection hole (2) connected to the delivery pipe, and start the water pump (23) and the hot air blower (24) at the same time, and perform a wind-and-rain watertightness test on the surface of the test curtain wall body (6) below, and observe the water permeability of the bottom of the test curtain wall body (6) to obtain the watertightness test result; S8: Thermal performance test: After installing the pressure part on the test frame (1), adjust the hollow partition plate (19) downward until it is close to the test curtain wall body (6), so that the temperature sensor (29) is attached to the upper and lower surfaces of the test curtain wall body (6), start the hot air blower (24) to deliver hot gas to the upper surface of the test curtain wall body (6), and observe the upper and lower surface parameters of the test curtain wall body (6) detected by the temperature sensor (29) within a preset time; S9: Airborne sound insulation test: remove the test curtain wall body (6) from the clamping part and move it to the placement cavity (11) for fixation, rotate the adjustment hinge (25) below the test curtain wall body (6) so that the sound column (9) makes a sound when passively rotating, and observe the detection parameters of the sound sensor (20) above the test curtain wall body (6); The placement cavity (11) is arranged on the bottom inner wall of the test rack (1); The weight block (5) is connected to the top outer wall of the test frame (1) through a position adjustment part, and the position adjustment part includes a movable groove (27) provided on the top outer wall of the test frame (1), a support rod (4) slidably connected to the inner wall of the movable groove (27) through a slider, a mounting plate (28) slidably connected to the inner wall of the support rod (4), and a retractable structure provided on the top surface of the mounting plate (28); The test frame (1) is provided with a positioning groove (3) on each of the opposite sides, and the pressure-applying portion is slidably connected to the inner wall of the positioning groove (3), and the pressure-applying portion includes a fixed plate (15) slidably connected to the inner wall of the positioning groove (3), a telescopic member (17) fixedly connected to the outer wall of the bottom of the fixed plate (15), and a hollow partition plate (19) fixedly connected to the extended end of the telescopic member (17); The bottom outer wall of the hot air blower (24) is connected to the outer wall of one side of the test frame (1) through a support block, and more than two connection holes (2) are provided on the outer wall of one side of the test frame (1) facing away from the hot air blower (24), one end of the gas supply pipe 1 and the gas supply pipe 2 are respectively fixedly connected to the output end of the hot air blower (24), and the other ends of the gas supply pipe 1 and the gas supply pipe 2 are respectively fixed to one end of two of the connection holes (2); The bottom outer wall of the water pump (23) is connected to the outer wall of one side of the test frame (1) through a top plate, the input end of the water pump (23) is connected to the inner wall of the liquid collecting chamber (26) through a conduit, and the output end of the water pump (23) is fixed to the inner wall of one of the connection holes (2) through a liquid infusion tube.

2. A building curtain wall physical performance testing method according to claim 1, characterized in that: The outer wall of the test rack (1) close to the placement chamber (11) is slidably connected to a box door (8); An elastic ring (10) is fixedly connected to the inner wall of the receiving cavity (11) at the bottom end; A liquid collecting chamber (26) is provided on the inner wall of the bottom of the test rack (1) above the placement chamber (11).

3. A building curtain wall physical performance testing method according to claim 2, characterized in that: The clamping portion is arranged on a side opposite to the test frame (1) located above the placement cavity (11), and the clamping portion includes an adjustment column (22) arranged on an outer wall of one side of the test frame (1), a guide column (33) arranged on an outer wall of one side of the test frame (1), and a clamping block (7) rotatably connected to one end of the adjustment column (22) and the guide column (33); The two clamping blocks (7) are fixedly connected to opposite side surfaces with extension plates (32), one end of the two groups of extension plates (32) is provided with a same support plate (13), and the bottom end of the displacement meter (30) is fixedly connected to the top surface of the support plate (13).

4. A building curtain wall physical performance testing method according to claim 3, characterized in that: The support plate (13) is fixedly connected to a filter plate (31) near the middle inner wall; The bottom outer wall of the hollow partition plate (19) and the top outer wall of the support plate (13) are both fixedly connected with elastic members, and one side of the temperature sensor (29) is fixedly connected to one end of the elastic member.

5. A building curtain wall physical performance testing method according to claim 1, characterized in that: A limiting hole (16) is provided on one side of the mounting plate (28) and the support rod (4), and a same limiting column is provided on the inner wall of the limiting hole (16) located at opposite positions on the mounting plate (28) and the support rod (4); The retractable structure comprises a line roller (38) rotatably connected to one side of the mounting plate (28), a motor (37) slidably connected to the inner wall of the bottom of the mounting plate (28) via a sliding block, and a supporting member (36) fixed to the sliding block and the opposite side of the mounting plate (28), wherein the output shaft of the motor (37) is connected to the input end of the line roller (38) via a coupling, and the top end of the gravity block (5) is connected to one end of a connecting rope provided on the outer wall of the line roller (38).

6. A building curtain wall physical performance testing method according to claim 5, characterized in that: An air hole (21) is provided on the bottom outer wall of the hollow partition plate (19), an extrusion block (14) is provided on the inner wall of the air hole (21), and a pressure sensor (35) is fixedly connected to the bottom surface of the extrusion block (14).

7. A building curtain wall physical performance testing method according to claim 1, characterized in that: The outer walls of the gas pipeline 1 and the gas pipeline 2 are both fixedly connected with valves; The bottom end of the pressure gauge (18) is fixedly connected to the top outer wall of the hollow partition plate (19).

8. A building curtain wall physical performance testing method according to claim 7, characterized in that: The air bag (12) is arranged on the inner wall of the placement cavity (11), and the input end of the air bag (12) is adapted to the inner diameter of the connection hole (2) connected to the second air delivery pipe.

9. A building curtain wall physical performance testing method according to claim 8, characterized in that: The bottom ends of the water delivery folding pipe and the gas delivery folding pipe are respectively fixedly connected to the top surface of the hollow partition plate (19), one end of the gas delivery folding pipe is arranged on the inner wall of the connection hole (2) connected to the gas delivery pipe, and one end of the water delivery folding pipe is arranged on the inner wall of the connection hole (2) connected to the liquid delivery pipe; The outer walls of the bottoms of the hollow partition plates (19) at the four corners are fixedly connected with spray heads (34), and the input end of the spray head (34) is connected to one end of the folded water delivery pipe via a conduit.

10. A building curtain wall physical performance testing method according to claim 1, characterized in that: One end of the sound column (9) is rotatably connected to an inner wall of a side of the test frame (1) at the bottom end, one end of the adjustment hinge (25) is rotatably connected to an outer wall of a side of the test frame (1), and one end of the adjustment hinge (25) is connected to one end of the sound column (9) via a connecting shaft; one side of the sound sensor (20) is fixedly connected to the top inner wall of the placement cavity (11).

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