Device for testing fire resistance of pressed structural column

Abstract

The utility model relates to the technical field of pressed structural columns, in particular to a fireproof performance testing device for a pressed structural column, which comprises a fixed base, two side baffles, an upper fixed connecting block, a structural column placing table, a lower hydraulic machine and an upper hydraulic machine, and the bottom ends of the two side baffles are fixedly connected with two sides of the upper surface of the fixed base; the top ends of the side face baffles are fixedly connected with the two sides of the bottom of the upper fixed connecting block. A lower groove used for fixing the lower side hydraulic machine is formed in the middle of the upper surface of the fixed base. An upper groove for fixing the upper hydraulic machine is formed in the middle of the lower surface of the upper fixed connecting block; a plurality of high-temperature-resistant gas nozzles are arranged on the side face baffles in the vertical direction of the side face baffles at intervals. According to the utility model, the bearing load and temperature of the structural column are controlled by using the high-temperature-resistant gas nozzle and the upper and lower hydraulic machines, and the state index of the structural column and the relationship between the loaded state and the high-temperature-resistant performance are measured by using the pressure sensor and the temperature sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of compressed structural columns, in particular to a fire resistance performance testing device for compressed structural columns. Background Art

[0002] The fire resistance of structural columns under compression is an important indicator of fire resistance. The load resistance of structural columns at different temperatures also varies. Traditional compression structural column devices are difficult to control the temperature of structural columns. They are either simply fire resistance tests or simply load resistance tests.

[0003] Based on the above problems, the utility model proposes a fire resistance performance testing device for a compression structure column. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a fire resistance performance testing device for a compressed structural column, which uses a high-temperature resistant gas nozzle and upper and lower hydraulic presses to control the load and temperature of the structural column, and uses a pressure sensor and a temperature sensor to measure the state index of the structural column and the relationship between the load state and the high-temperature resistance performance.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted by this utility model is:

[0006] The utility model discloses a fire resistance performance testing device for a compressed structural column, comprising a fixed base, side baffles, an upper fixed connecting block, a structural column placement table, a lower hydraulic press and an upper hydraulic press, wherein the fixed base is fixed on a chassis, the bottom ends of the two side baffles are fixedly connected to both sides of the upper surface of the fixed base, and the top ends of the side baffles are fixedly connected to both sides of the bottom of the upper fixed connecting block; a lower groove for fixing the lower hydraulic press is provided in the middle of the upper surface of the fixed base, and a structural column placement table for placing the structural column is fixed at the output end of the lower hydraulic press; an upper groove for fixing the upper hydraulic press is provided in the middle of the lower surface of the upper fixed connecting block; and a plurality of high-temperature resistant gas nozzles are provided at intervals along the vertical direction of the side baffle.

[0007] A temperature sensor is provided on the inner wall of the side baffle, and the inner end of the temperature sensor can contact the outer wall of the structural column through a screw lifter fixed on the outer wall of the side baffle.

[0008] A moving block is provided in the middle of the inner walls on both sides of the side baffle, and the inner end of the moving block can be in tight contact with the outer wall of the structural column through a screw lifter fixed on the outer wall of the side baffle.

[0009] The output end of the upper hydraulic press is connected to an upper movable plate, and the width of the upper movable plate is greater than the width of the output end of the upper hydraulic press.

[0010] A pressure sensor is connected to the top of the upper hydraulic press.

[0011] The cross-sectional area of ​​the chassis is larger than the cross-sectional area of ​​the fixed base.

[0012] The beneficial effects of the present invention are:

[0013] (1) The utility model utilizes a high-temperature resistant gas nozzle and upper and lower hydraulic presses to control the load and temperature of the structural column, and utilizes a pressure sensor and a temperature sensor to measure the state index of the structural column and the relationship between the load state and the high-temperature resistance performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the connection between the upper hydraulic press and the upper fixed connection block in the present invention;

[0016] Figure 3 This is a schematic diagram of the connection between the lower hydraulic press and the fixed base in the utility model.

[0017] In the figure: 1 fixed base, 2 side baffle, 3 upper fixed connecting block, 4 screw lift, 6 moving block, 7 structural column placement table, 8 lower hydraulic press, 9 upper hydraulic press, 10 upper moving plate, 11 pressure sensor, 12 high temperature resistant gas nozzle, 14 temperature sensor. DETAILED DESCRIPTION

[0018] The utility model is further described below:

[0019] See also Figure 1-3 ,

[0020] The utility model discloses a fire resistance performance testing device for a compressed structural column, comprising a fixed base 1, a side baffle 2, an upper fixed connecting block 3, a structural column placing platform 7, a lower hydraulic press 8 and an upper hydraulic press 9, the fixed base 1 is fixed on the chassis 15, the bottom ends of the two side baffles 2 are fixedly connected to the upper surface of the fixed base 1 on both sides, the top of the side baffle 2 is fixedly connected to the bottom two sides of the upper fixed connecting block 3; the middle part of the upper surface of the fixed base 1 is provided with a lower groove for fixing the lower hydraulic press 8. By setting the lower groove, when the lower hydraulic press 8 is not working, the upper surface of the structural column placing platform 7 is flush with the upper surface of the fixed base 1, which can make the structural column placement more stable in the initial state, and the output end of the lower hydraulic press 8 is fixed with a structural column placing platform 7 for placing the structural column; the middle part of the lower surface of the upper fixed connecting block 3 is provided with an upper groove for fixing the upper hydraulic press 9; the side baffles 2 are arranged at intervals along their vertical direction There are several high-temperature resistant gas nozzles 12. In this case, the high-temperature resistant gas nozzles 12, the upper hydraulic press 9, and the lower hydraulic press 8 are used to control the load and temperature of the structural column, and the pressure sensor 11 and the temperature sensor 14 are used to measure the state indicators of the structural column and the relationship between the load state and the high-temperature resistance performance. The principle is: when pressurizing the structural column, the structural column can be placed between the structural column placement platform 7 and the upper movable plate 10, and the movable block 6 is controlled to fix the structural column by adjusting the left and right screw lifts 4. Then, the temperature sensor 14 is attached to the structural column, and then the high-temperature resistant gas nozzles 12, the upper hydraulic press 9 and the lower hydraulic press 8 are started to heat and pressurize the structural column. At the same time, the state of the structural column is monitored by the pressure sensor 11 and the temperature sensor 14, so that the structural column is tested under experimental conditions, and the deformation of the structural column is observed and the pressure and temperature are recorded. Preferably, the high-temperature resistant gas nozzles 12, the upper hydraulic press 9 and the lower hydraulic press 8 are all connected to the controller and controlled by the controller.

[0021] Furthermore, a temperature sensor 14 is provided on the inner wall of the side baffle 2, and the inner end of the temperature sensor 14 can contact the outer wall of the structural column through the screw lift 4 fixed on the outer wall of the side baffle 2; the top of the upper hydraulic press 9 is connected to a pressure sensor 11, and the state of the structural column is monitored by the pressure sensor 11 and the temperature sensor 14, so that the structural column is tested under experimental conditions, and the deformation of the structural column is observed and the pressure and temperature are recorded.

[0022] Furthermore, a movable block 6 is provided in the middle of the inner walls on both sides of the side baffle 2. The inner end of the movable block 6 can be tightly contacted with the outer wall of the structural column through the screw lift 4 fixed on the outer wall of the side baffle 2, and can further fix the two sides of the structural column, so that when it is pressurized by the hydraulic press, the fixation is more stable and will not move, and it can play a role in horizontal positioning. The screw lift 4 in this case is existing technology, and its structural principle will not be repeated.

[0023] Furthermore, the output end of the upper hydraulic press 9 is connected to an upper movable plate 10 , and the width of the upper movable plate 10 is greater than the width of the output end of the upper hydraulic press 9 , so that the pressure contact area is more uniform.

[0024] Furthermore, the cross-sectional area of ​​the chassis 15 is larger than the cross-sectional area of ​​the fixed base 1, so that the device can be placed and fixed more stably.

[0025] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformation made using the contents of the present invention specification and drawings or directly or indirectly applied in the relevant technical field shall be included in the patent protection scope of the present invention.

Claims

1. A fire resistance performance testing device for a compression structure column, characterized by: It includes a fixed base (1), a side baffle (2), an upper fixed connection block (3), a structural column placement table (7), a lower hydraulic press (8) and an upper hydraulic press (9), The fixed base (1) is fixed on the chassis (15), the bottom ends of the two side baffles (2) are fixedly connected to both sides of the upper surface of the fixed base (1), and the top ends of the side baffles (2) are fixedly connected to both sides of the bottom of the upper fixed connection block (3); A lower groove for fixing the lower hydraulic press (8) is provided in the middle of the upper surface of the fixed base (1), and a structural column placement table (7) for placing a structural column is fixed to the output end of the lower hydraulic press (8); an upper groove for fixing the upper hydraulic press (9) is provided in the middle of the lower surface of the upper fixed connection block (3); The side baffle (2) is provided with a plurality of high-temperature resistant gas nozzles (12) at intervals along its vertical direction.

2. The fire resistance performance testing device for a compression structure column according to claim 1, characterized in that: A temperature sensor (14) is provided on the inner wall of the side baffle (2), and the inner end of the temperature sensor (14) can contact the outer wall of the structural column via a screw lift (4) fixed to the outer wall of the side baffle (2).

3. The fire resistance performance testing device for a compression structure column according to claim 2, characterized in that: A moving block (6) is provided in the middle of the inner walls on both sides of the side baffle (2), and the inner end of the moving block (6) can be in tight contact with the outer wall of the structural column through a screw lift (4) fixed on the outer wall of the side baffle (2).

4. The fire resistance performance testing device for a compression structure column according to claim 3, characterized in that: The output end of the upper hydraulic press (9) is connected to an upper movable plate (10), and the width of the upper movable plate (10) is greater than the width of the output end of the upper hydraulic press (9).

5. The fire resistance performance testing device for a compression structure column according to claim 4, characterized in that: A pressure sensor (11) is connected to the top of the upper hydraulic press (9).

6. The fire resistance performance testing device for a compression structure column according to claim 1, characterized in that: The cross-sectional area of ​​the chassis (15) is greater than the cross-sectional area of ​​the fixed base (1).

Images