Bend test method in Apparatus for Bending at low-temp and high temperature in concrete material high temperature

Bend test method in Apparatus for Bending at low-temp and high temperature in concrete material high temperature

  • CN 105,547,856 B
  • Filed: 12/21/2015
  • Issued: 08/24/2018
  • Est. Priority Date: 12/21/2015
  • Status: Active Grant
First Claim
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1. Apparatus for Bending at low-temp in concrete material high temperature, it is characterised in that:

  • Including being used to apply stressed add to concrete sampleCarry equipment, the heating device for heating concrete sample and the displacement acquisition for measuring concrete sample bending deformation quantityDevice;

    The loading equipemtn includes pedestal, is fixed on the pedestal column is set on the column and above and below the columnMove and position crossbeam, be fixed on crossbeam bottom top board, be fixed on top board bottom high temperature resistant seaming chuck, be set to instituteState the lower platen on pedestal, the high temperature resistant push-down head on the lower platen, the high temperature resistant cushion block on the push-down headAnd the load power source for applying upward active force to the lower platen, the lower end of the high temperature resistant seaming chuck are arranged in parallelTwo strip convex parts for being downwardly applied to pressure to concrete sample middle part, the upper end of the high temperature resistant cushion block is arranged in parallel twoIt is a for applying stressed strip convex part upwards to concrete sample both ends, the strip convex part on the high temperature resistant seaming chuck withAnd the strip convex part on the high temperature resistant cushion block is arranged in parallel and is collectively formed for applying the four of active force to concrete sampleA fulcrum;

    The heating device includes high temperature furnace supporting rack, the high temperature furnace on the high temperature furnace supporting rack and is set in high temperature furnaceHeater, the high temperature furnace is between the top board and the lower platen, described in the setting of the top plate of the high temperature furnace suppliesHigh temperature resistant seaming chuck supplies the high temperature resistant push-down head down through the upper perforation inside high temperature furnace, the bottom plate setting of the high temperature furnaceThe lower perforation inside high temperature furnace is penetrated upwards, and face is arranged in the vertical direction for the upper perforation and the lower perforation;

    The displacement acquisition device includes three three displacement meters being set on the high temperature resistant seaming chuck, acquisition displacement metersInformation displacement meter collecting cassette, two end guide rod structures and middle part guide rod structure end guide rod structure include the first resistance to heightWarm guide rod, middle part guide rod structure include the second high temperature resistant guide rod, the institute that the second high temperature resistant guide rod slides through in the vertical directionThe centre bore for stating high temperature resistant seaming chuck gos deep into high temperature furnace, and the first high temperature resistant guide rod is respectively from the both sides of the high temperature resistant seaming chuckIt reaches deep down into high temperature furnace, the upside of high temperature furnace, high temperature furnace is at the top of the first high temperature resistant guide rod, the second high temperature resistant guide rodTop is equipped with the pilot hole passed through for each high temperature resistant guide rod, and the displacement meter set on high temperature resistant seaming chuck both sides is known as firstMeter is moved, the first displacement meter coordinates the deformation for measuring concrete sample both ends with the corresponding end guide rod structure top pressureAmount, the displacement meter on the top board are known as second displacement meter, second displacement meter and middle part guide rod structure topPress-fit is used to measure the deflection in the middle part of concrete sample, and the high temperature resistant seaming chuck includes being fixedly arranged on the top boardSeaming chuck bearing and the seaming chuck ontology being fixedly arranged on the seaming chuck bearing, the high temperature resistant push-down head include being fixedly arranged onPush-down head bearing on the lower platen and the push-down head ontology being fixedly arranged on the push-down head bearing, the corresponding stripProtrusion is located on the seaming chuck ontology, and the end guide rod structure includes on the bottom surface of the seaming chuck bearing and havingThe spring base of compression spring and top are set to the first high temperature resistant guide rod of the compression spring bottom end, and the outside of the spring base is along axisIt is equipped with guide slit, the lateral pressing plate of upper end setting of the first high temperature resistant guide rod to direction, the transverse direction pressing plate sliding plugsIn guide slit and the transverse direction pressing plate is used to coordinate with the probe portion top pressure of corresponding first displacement meter, the two first resistance to heightWarm guide rod is arranged with the strip convex part face on high temperature resistant push-down head respectively;

    The middle part guide rod structure includes rotation connectionLever on the high temperature resistant seaming chuck, the second high temperature resistant guide rod and tension spring set on lever inner end, the drawingThe upper/lower terminal of spring is individually fixed on lever outer end and the top board, the lever outer end and corresponding described secondThe probe portion top pressure of displacement meter coordinates, and second displacement meter is set on the side of top board.

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