Search

CN-224231431-U - Steel pipe concrete structure mechanical property test device

CN224231431UCN 224231431 UCN224231431 UCN 224231431UCN-224231431-U

Abstract

The utility model discloses a device for testing mechanical properties of a concrete filled steel tube structure, which relates to the technical field of concrete filled steel tube tests and comprises a bottom plate, wherein symmetrical supports are fixedly connected to two sides of the bottom plate, a lower pressing block is arranged between the symmetrical supports, a connecting mechanism is arranged at the upper end of the lower pressing block, an axial test mechanism is arranged on the support, the axial test mechanism comprises a sliding groove, a guide groove is formed in the sliding groove, the guide groove is slidably connected with a sliding block, a lifting mechanism is arranged at the lower end of the sliding block, an air cylinder is fixedly connected to one end, far away from the lower pressing block, of the sliding block, a pressing plate is fixedly connected to an output shaft of the air cylinder, and the lower pressing block is positioned between the symmetrical pressing plates. The steel pipe concrete performance test device has the beneficial effects that the sliding block slides in the guide groove, so that the sliding block drives the pressing plate to be coaxial with the steel pipe concrete, the air cylinder drives the pressing plate to be close to the steel pipe concrete for centering limiting, and then the air cylinder drives the pressing plate to extrude the steel pipe concrete for axial pressurization, so that a comprehensive performance test is performed on the steel pipe concrete.

Inventors

  • SHI YANLI
  • CAI QINGRONG
  • CHENG ZHIFENG
  • XIE JIAN
  • Wu Qiongxia
  • CHEN LING
  • ZHENG LONG

Assignees

  • 皓耀时代(福建)集团有限公司
  • 恒超建工集团有限公司
  • 兰州理工大学

Dates

Publication Date
20260512
Application Date
20250527

Claims (7)

  1. 1. The device for testing the mechanical properties of the concrete filled steel tube structure comprises a bottom plate (101), wherein symmetrical brackets (103) are fixedly connected to two sides of the bottom plate (101), and the device is characterized in that a lower pressing block (302) is arranged between the symmetrical brackets (103), a connecting mechanism is arranged at the upper end of the lower pressing block (302), and an axial testing mechanism is arranged on the brackets (103); The axial test mechanism comprises a sliding groove (401), the sliding groove (401) is formed in the lower end of the support (103), a guide groove (402) is formed in the sliding groove (401), the guide groove (402) is connected with a sliding block (403) in a sliding mode, a lifting mechanism is arranged at the lower end of the sliding block (403), the sliding block (403) is away from one end of the lower pressing block (302) and is fixedly connected with an air cylinder (404), an output shaft of the air cylinder (404) is fixedly connected with a pressing plate (405), and the lower pressing block (302) is located between the pressing plates (405) in a symmetrical mode.
  2. 2. The device for testing the mechanical properties of the concrete filled steel tube structure according to claim 1, wherein the lifting mechanism comprises a groove (501), the groove (501) is formed in the lower end of the sliding groove (401), an electric telescopic rod (502) is fixedly installed in the groove (501), and the upper end of the electric telescopic rod (502) is fixedly connected with the sliding block (403).
  3. 3. The steel tube concrete structure mechanical property test device according to claim 1, wherein the connecting mechanism comprises a lifting plate (301), a lifting screw rod (203) is rotationally connected to the support (103), the lifting screw rod (203) is in threaded connection with the lifting plate (301), the pressing block (302) is fixedly connected to the lower end of the lifting plate (301), and a pressing mechanism is arranged between the lifting plate (301) and the support (103).
  4. 4. The device for testing mechanical properties of a concrete filled steel tube structure according to claim 3, wherein the pushing mechanism comprises a fixed shell (201), the fixed shell (201) is fixed at the upper end of the support (103), the upper end of the fixed shell (201) is fixedly connected with a lifting motor (202), and an output shaft of the lifting motor (202) is fixedly connected with the lifting screw rod (203).
  5. 5. A test device for mechanical properties of a concrete filled steel tube structure according to claim 4, wherein the upper ends of the lifting screw rods (203) on both sides are fixedly connected with belt wheels, the belt wheels are connected with belts, and the belts are positioned in the fixed shell (201).
  6. 6. The steel tube concrete structure mechanical property test device according to claim 1, wherein the bottom plate (101) is provided with a through groove (102), a bidirectional screw rod (601) is rotationally connected to the through groove (102), symmetrical limiting blocks (602) are connected to the bidirectional screw rod (601) in a front-back threaded mode, a power motor (603) is fixedly connected to the front end of the bottom plate (101), and an output shaft of the power motor (603) is fixedly connected with the bidirectional screw rod (601).
  7. 7. The device for testing the mechanical properties of the concrete filled steel tube structure according to claim 6, wherein symmetrical supporting blocks (7) are fixedly arranged on two sides of the bottom plate (101), and the power motor (603) is located between the symmetrical supporting blocks (7).

Description

Steel pipe concrete structure mechanical property test device Technical Field The utility model relates to the technical field of steel tube concrete tests, in particular to a device for testing the mechanical properties of a steel tube concrete structure. Background The steel pipe concrete is a novel combined structure formed by pouring concrete into the steel pipe, combines the advantages of steel and concrete, is commonly used in bridge construction, high-rise building and factory building, effectively enhances the bearing capacity of the building, and improves the safety of the building. In the prior art, chinese patent publication No. CN220708912U discloses a device for testing the mechanical properties of a concrete filled steel tube structure, wherein the free end pressing surfaces of a first load mechanism and a second load mechanism are pressed on the concrete filled steel tube structure, and the first load mechanism and the second load mechanism are opposite or staggered to apply pressure to the upper side and the lower side of the concrete filled steel tube structure. The existing mechanical property experimental device generally only applies pressure to the radial direction of the steel pipe concrete, but the steel pipe concrete is generally vertically installed when in use, namely, is axially stressed, and the steel pipe concrete needs to be subjected to an axial compression test. Disclosure of utility model The utility model aims to solve the problems and provides a device for testing the mechanical properties of a concrete filled steel tube structure. The utility model realizes the above purpose through the following technical scheme: The utility model provides a steel pipe concrete structure mechanical properties test device, includes the bottom plate, bottom plate both sides fixedly connected with symmetrical support, is equipped with down the briquetting between the symmetrical support, and lower briquetting upper end is equipped with coupling mechanism, is equipped with axial test mechanism on the support. The axial test mechanism comprises a sliding groove, the sliding groove is formed in the lower end of the support, a guide groove is formed in the sliding groove, a sliding block is slidably connected to the guide groove, a lifting mechanism is arranged at the lower end of the sliding block, one end of the sliding block, which is far away from the lower pressing block, is fixedly connected with a cylinder, an output shaft of the cylinder is fixedly connected with a pressing plate, and the lower pressing block is located between the symmetrical pressing plates. Preferably, the lifting mechanism comprises a groove, the groove is formed in the lower end of the sliding groove, an electric telescopic rod is fixedly mounted in the groove, and the upper end of the electric telescopic rod is fixedly connected with the sliding block. Preferably, the connecting mechanism comprises a lifting plate, the lifting screw rod is rotationally connected with the bracket, the lifting screw rod is in threaded connection with the lifting plate, the lower pressing block is fixedly connected at the lower end of the lifting plate, and a pressing mechanism is arranged between the lifting plate and the bracket. Preferably, the pushing mechanism comprises a fixed shell, the fixed shell is fixed at the upper end of the bracket, the upper end of the fixed shell is fixedly connected with a lifting motor, and an output shaft of the lifting motor is fixedly connected with the lifting screw rod. Preferably, the upper ends of the lifting screw rods on two sides are fixedly connected with belt wheels, the belt wheels are connected with belts, and the belts are positioned inside the fixed shell. Preferably, a through groove is formed in the bottom plate, a bidirectional screw rod is connected in the through groove in a rotating mode, symmetrical limiting blocks are connected to the front and rear threads of the bidirectional screw rod, a power motor is fixedly connected to the front end of the bottom plate, and an output shaft of the power motor is fixedly connected with the bidirectional screw rod. Preferably, symmetrical supporting blocks are fixedly arranged on two sides of the bottom plate, and the power motor is positioned between the symmetrical supporting blocks. The steel pipe concrete comprehensive performance test device has the beneficial effects that the sliding block slides in the guide groove, so that the sliding block drives the pressing plate to be coaxial with the steel pipe concrete, the air cylinder drives the pressing plate to be close to the steel pipe concrete for centering limiting, and then the air cylinder drives the pressing plate to extrude the steel pipe concrete for axial pressurization, so that comprehensive performance test is performed on the steel pipe concrete. Additional features and advantages of the utility model will be set forth in the description which follows, or may be learned by p