CN110827655A - Test loading device of assembled structure model - Google Patents

Test loading device of assembled structure model Download PDF

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Publication number
CN110827655A
CN110827655A CN201911142561.4A CN201911142561A CN110827655A CN 110827655 A CN110827655 A CN 110827655A CN 201911142561 A CN201911142561 A CN 201911142561A CN 110827655 A CN110827655 A CN 110827655A
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China
Prior art keywords
frame
side frame
loading
horizontal
loading device
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CN201911142561.4A
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Inventor
宋满荣
葛陈军
刘元
戚玉奎
金亚东
何嘉轩
张哲文
孔绍东
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Hefei University of Technology
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Hefei University of Technology
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/04Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • G01B11/02Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention belongs to the technical field of test loading devices, and particularly relates to a test loading device of an assembled structure model. The box type frame comprises upright side posts, a top frame and a bottom frame; more than two side frame beams are movably arranged on each side face of the box type frame, the horizontal extending direction of each side frame beam is the same as that of the corresponding side face, transverse sliding rails are fixedly arranged on the side frame beams, the transverse sliding rails are parallel to the beam bodies of the corresponding side frame beams, and more than two pulleys are sleeved on each transverse sliding rail; a horizontal rectangular perforated steel plate is fixedly arranged on the bottom frame; the side frame beam can be vertically adjusted on the vertical slide rail, the transverse slide rail is fixedly arranged above the side frame beam, and the pulley can slide on the transverse slide rail to adjust the position, so that the defect that the loading position of the traditional structural model is not easy to adjust is overcome, the requirements of different horizontal loads and vertical load loading point positions are met, and multi-point horizontal loading, vertical static loading and impact loading can be realized.

Description

Test loading device of assembled structure model
Technical Field
The invention belongs to the technical field of university student structure experiment teaching and university student structure competition model test loading devices, and particularly relates to a test loading device of an assembled structure model.
Background
The design of the structural model is an important practice teaching link for the professional culture of civil engineering at present, needs basic theoretical knowledge and professional knowledge of structural engineering subjects, is the most direct test for evaluating whether students master the basic principle and analysis method of mechanics, the basic performance and application condition of engineering materials, the mechanical performance and calculation principle of structural members and the like, and can lay a foundation for the students to engage in practical work such as structural engineering design, construction, management, research and development and the like in the future.
With the disappearance of the population dividend and the requirement of the modernization of the building industry, the application of the prefabricated concrete structure is more and more extensive. The building industrialization characterized by design standardization, production industrialization, construction assembly and management information becomes the development trend of the building industry, and a deep technical and social revolution is certainly brought. The design of the structural model is the spirit of returning to engineering practice, and the design of the prefabricated concrete or steel structure model becomes essential content by combining the development trend of the building industry.
At present, the existing structure model loading device in the market can not adjust the position of a loading point, and a displacement acquisition system is difficult to flexibly adjust, so the size requirement on a loading model is extremely strict, one loading device is only suitable for a specific loading model, and the loading device is designed and manufactured according to the loading requirement of a certain type of structure model, and the universality is lacked; and mainly aim at the material for lighter structure model such as bamboo veneer, tung wood, ivory board and organic glass, do not consider the material for the demand of concrete or steel construction assembled structure model loading. In view of the current situation, research work which is developed in the early stage is combined, and on the basis of years of test work of mechanical properties of engineering structure models, multifunctional loading equipment suitable for assembled structures such as concrete or steel structures is researched, so that the multifunctional loading equipment can serve university student structure experiment teaching and university student structure competition.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a test loading device of an assembled structure model, which overcomes the defects in the background technology to meet the loading requirements of the university student structure model, and the specific technical scheme is as follows:
a test loading device of an assembled structure model comprises a box-type framework, wherein the box-type framework comprises upright side columns 11, a top frame 12 and a bottom frame 13;
more than two side frame beams 14 are movably arranged on each side face of the box-type frame, the side frame beams 14 are fixed through fixing screws 144, the horizontal extending direction of each side frame beam 14 is the same as that of the corresponding side face, a transverse sliding rail 141 is fixedly arranged on each side frame beam 14, each transverse sliding rail 141 is parallel to the beam body of the corresponding side frame beam 14, and more than two pulleys 142 are sleeved on each transverse sliding rail 141;
a horizontal rectangular perforated steel plate 15 is fixedly arranged on the bottom frame 13, and the perforated steel plate 15 is detachable;
during testing, the assembled structure model 2 is fixedly arranged on the perforated steel plate 15, and when vertical loading is carried out, a second mass block 32 or a jack is placed on a floor plate of the assembled structure model 2 to apply pressure to the floor plate; during horizontal loading, a rope is wound on the pulley 142, one end of the rope is fixedly connected to the side edge of the assembled structure model 2, the other end of the rope is connected with the first mass block 31, and horizontal acting force is applied to the assembled structure model 2 under the action of gravity of the mass block.
Further, each side post 11 is a hollow tube with a rectangular cross section, the side surface of the side post 11 corresponding to the outer side of the box-type frame is provided with a vertical slide rail 111, and two ends of each side frame beam 14 are respectively sleeved on the corresponding vertical slide rails 111, so that the side frame beams 14 are movably connected to the corresponding side surface of the box-type frame and are locked and fixed through fixing screws 144.
Further, a top frame beam 121 is arranged on the top frame 12, the top frame beam 121 and the top frame 12 have the same longitudinal extension direction, and two ends of the top frame beam 121 are sleeved on the corresponding top frame 12.
Further, vertical steel rulers 112 are fixedly arranged on the side faces, corresponding to the vertical slide rails 111, of the side columns 11.
Further, a laser displacement meter 122 is fixedly arranged on the top frame 12 through a mechanical arm.
Further, more than two connecting plates 143 are uniformly distributed along the body of each side frame beam 14, one end of each connecting plate is fixedly connected with the upper end of the corresponding side frame beam 14, and the other end of each connecting plate is sleeved on the corresponding transverse slide rail 141, so that the transverse slide rail 141 is suspended above the side frame beam 14.
Further, more than two horizontal reinforcing rods 131 are arranged on the bottom frame 13, and each reinforcing rod 131 is arranged in parallel to the width direction of the bottom frame 13; the both sides lower extreme of underframe 13 all is fixed and is equipped with vertical stand.
The invention has the following beneficial technical effects:
1. the side frame beam can be vertically adjusted on the vertical slide rail, the transverse slide rail is fixedly arranged above the side frame beam, and the pulley can slide on the transverse slide rail to adjust the position, so that the defect that the loading position of the traditional structural model is not easy to adjust is overcome, the requirements of different horizontal loads and vertical load loading point positions are met, and multi-point horizontal loading, vertical static loading and impact loading can be realized.
2. According to the test loading device for the assembled structural model, the laser displacement meter is arranged on the top frame, and vertical and horizontal longitudinal and transverse displacements of the assembled structural model to be tested can be accurately measured through vertical and horizontal adjustment of the mechanical arm, so that flexible adjustment of a displacement acquisition system is realized.
3. According to the test loading device of the assembly type structure model, the steel ruler is arranged on the corresponding side surface of each side column, which is provided with the vertical slide rail, so that when the position of the frame beam is adjusted, scales are conveniently aligned, the heights of two ends of the adjusted frame beam are consistent, and the precision of the frame structure is realized.
Drawings
FIG. 1 is a schematic view of an assembled test loading apparatus.
Fig. 2 is a front view of fig. 1.
FIG. 3 is a schematic view of example 1.
Fig. 4 is a partially detailed view of fig. 3.
FIG. 5 is a schematic view of example 2.
Fig. 6 is a schematic structural view of the fabricated structural model of example 1.
Fig. 7 is a schematic structural view of the fabricated structural model of example 2.
Wherein: 11-side column; 111-vertical slide rails; 112-a steel ruler; 12-a top frame; 121-top frame beam; 122-laser displacement meter; 13-bottom frame; 131-a stiffener; 14-side frame beams; 141-transverse slide rail; 142-a pulley; 143-connecting plate; 144-set screws; 15-perforated steel plate; 2-assembling structural model; 31-a first mass; 32-second mass.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
The loaded assembled structural model 2 is a two-layer two-span frame;
a test loading device of an assembled structure model comprises a box-type framework, wherein the box-type framework comprises upright side columns 11, a top frame 12 and a bottom frame 13;
the top frame 12 is fixedly provided with a laser displacement meter 122 through a mechanical arm. The top frame 12 is provided with a top frame beam 121, the top frame beam 121 and the top frame 12 have the same longitudinal extension direction, and two ends of the top frame beam 121 are sleeved on the corresponding top frame 12.
Two horizontal reinforcing rods 131 are arranged on the bottom frame 13, and each reinforcing rod 131 is arranged in parallel to the width direction of the bottom frame 13; the both sides lower extreme of underframe 13 all is fixed and is equipped with vertical stand.
Each side face of the box-type frame is movably provided with two side frame beams 14, the cross section of each side frame beam 14 is a rectangular (the rectangle is 50mm multiplied by 50 mm) hollow tube, the thickness of the tube wall is 2.0mm, and the horizontal extending direction of each side frame beam 14 is the same as that of the corresponding side face.
The side frame beam 14 is fixedly provided with transverse sliding rails 141, the transverse sliding rails 141 are parallel to the beam body of the corresponding side frame beam 14, and each transverse sliding rail 141 is sleeved with four pulleys 142; each side column 11 is a hollow tube with a rectangular cross section (the rectangle is 100mm multiplied by 100 mm), and the wall thickness of the tube is 2.5 mm. More than two connecting plates 143 are uniformly distributed along the body of each side frame beam 14, one end of each connecting plate is fixedly connected with the upper end of the corresponding side frame beam 14, and the other end is sleeved on the corresponding transverse slide rail 141, so that the transverse slide rail 141 is suspended above the side frame beam 14.
The side surfaces of the side posts 11 corresponding to the outer sides of the box-type frame are respectively provided with a vertical slide rail 111, and two ends of each side frame beam 14 are respectively sleeved on the corresponding vertical slide rails 111, so that the side frame beams 14 are movably connected on the corresponding side surfaces of the box-type frame and are locked and fixed through fixing screws 144.
Vertical steel rulers 112 are fixedly arranged on the side faces, corresponding to the vertical slide rails 111, of the side columns 11.
A horizontal rectangular perforated steel plate 15 is fixedly arranged on the bottom frame 13;
during testing, the assembled structural model 2 is locked and installed on the perforated steel plate 15 through bolts; when vertical loading is carried out, a second mass block 32 (20-30 kg) is placed on a floor slab of the assembled structural model 2 to apply pressure to the floor slab, the upper end of the second mass block 32 is connected with a rope, the other end of the rope is tied to the middle of the top frame beam 121, loading damage of the assembled structural model 2 is prevented, and the second mass block 32 falls to the ground to hurt people;
during horizontal loading, the required side frame beam 14 is installed according to the horizontal force loading point position, the installation height of the side frame beam 14 on the corresponding side column 11 is accurately adjusted by means of the vertical steel ruler 112, the side frame beam is locked and fixed through the fixing screw 144, then the pulleys 142 are moved to the specified position, a rope is wound on each pulley 142, one end of each rope is fixedly connected to the side edge of the assembled structure model 2, the other end of each rope is connected with the first mass block 31 (15-30 kg), horizontal acting force is applied to the assembled structure model 2 under the action of the gravity of the first mass block 31, and the first mass block 31 can realize horizontal loading on different direction different point positions of the loaded assembled structure model 2; in the whole loading process, the mechanical arm can be fixedly installed on the top frame 12 as required, and the vertical and horizontal displacements of the assembled structural model 2 can be monitored by connecting the mechanical arm with the laser displacement meter 122 in a rotating manner.
Example 2
The tested assembled structure model 2 is a three-layer three-span frame;
a test loading device of an assembled structure model comprises a box-type framework, wherein the box-type framework comprises upright side columns 11, a top frame 12 and a bottom frame 13;
the top frame 12 is fixedly provided with a laser displacement meter 122 through a mechanical arm. The top frame 12 is provided with a top frame beam 121, the top frame beam 121 and the top frame 12 have the same longitudinal extension direction, and two ends of the top frame beam 121 are sleeved on the corresponding top frame 12.
Two horizontal reinforcing rods 131 are arranged on the bottom frame 13, and each reinforcing rod 131 is arranged in parallel to the width direction of the bottom frame 13; the both sides lower extreme of underframe 13 all is fixed and is equipped with vertical stand.
Each side face of the box-type frame is movably provided with three side frame beams 14, the cross section of each side frame beam 14 is a rectangular (the rectangle is 50mm multiplied by 50 mm) hollow tube, the thickness of the tube wall is 2.0mm, and the horizontal extending direction of each side frame beam 14 is the same as that of the corresponding side face.
The side frame beam 14 is fixedly provided with transverse sliding rails 141, the transverse sliding rails 141 are parallel to the beam body of the corresponding side frame beam 14, and each transverse sliding rail 141 is sleeved with four pulleys 142; each side column 11 is a hollow tube with a rectangular cross section (the rectangle is 100mm multiplied by 100 mm), and the wall thickness of the tube is 2.5 mm. More than two connecting plates 143 are uniformly distributed along the body of each side frame beam 14, one end of each connecting plate is fixedly connected with the upper end of the corresponding side frame beam 14, and the other end is sleeved on the corresponding transverse slide rail 141, so that the transverse slide rail 141 is suspended above the side frame beam 14.
The side faces of the side posts 11 corresponding to the outer sides of the box-type frame are respectively provided with a vertical slide rail 111, and two ends of each side frame beam 14 are respectively sleeved on the corresponding vertical slide rails 111, so that the side frame beams 14 are movably connected to the corresponding side faces of the box-type frame and are locked and fixed through bolts.
Vertical steel rulers 112 are fixedly arranged on the side faces, corresponding to the vertical slide rails 111, of the side columns 11.
A horizontal rectangular perforated steel plate 15 is fixedly arranged on the bottom frame 13;
during testing, the assembled structural model 2 is locked and installed on the perforated steel plate 15 through bolts; when vertical loading is carried out, a second mass block 32 (20-30 kg) is placed on a floor slab of the assembled structural model 2 to apply pressure to the floor slab, the upper end of the second mass block 32 is connected with a rope, the other end of the rope is tied to the middle of the top frame beam 121, loading damage of the assembled structural model 2 is prevented, and the second mass block 32 falls to the ground to hurt people;
according to the point location loaded by the horizontal force, the required side frame beam 14 is installed, the installation height of the side frame beam 14 on the corresponding side column 11 is accurately adjusted by means of a vertical steel ruler 112, the side frame beam is locked and fixed through a fixing screw 144, then the pulleys 142 are moved to the specified position, a rope is wound on each pulley 142, one end of each rope is fixedly connected to the side edge of the assembled structure model 2, the other end of each rope is connected with a first mass block 31 (15-30 kg), the horizontal acting force is applied to the assembled structure model 2 under the action of the gravity of the first mass block 31, and the first mass block 31 can horizontally load different point locations loaded with the assembled structure model 2 in different directions; in the whole loading process, the mechanical arm can be fixedly installed on the top frame 12 as required, and the vertical and horizontal displacements of the assembled structural model 2 can be monitored by connecting the mechanical arm with the laser displacement meter 122 in a rotating manner.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a test loading device of assembled structure model which characterized in that: comprises a box-type frame, wherein the box-type frame comprises upright side posts (11), a top frame (12) and a bottom frame (13);
more than two side frame beams (14) are movably arranged on each side face of the box-type frame, the horizontal extending direction of each side frame beam (14) is the same as that of the corresponding side face, a transverse sliding rail (141) is fixedly arranged on each side frame beam (14), each transverse sliding rail (141) is parallel to the beam body of the corresponding side frame beam (14), and more than two pulleys (142) are sleeved on each transverse sliding rail (141);
a horizontal rectangular perforated steel plate (15) is fixedly arranged on the bottom frame (13);
during testing, the assembled structural model (2) is fixedly arranged on the perforated steel plate (15), and when vertical loading is carried out, a second mass block (32) or a jack is placed on a floor plate of the assembled structural model (2) to apply pressure to the floor plate; when the horizontal loading is carried out, a rope is wound on the pulley (142), one end of the rope is fixedly connected to the side edge of the assembled structure model (2), the other end of the rope is connected with the first mass block (31), and horizontal acting force is applied to the assembled structure model (2) under the action of gravity of the mass block.
2. The test loading device of the fabricated structural model of claim 1, wherein: each side column (11) is a hollow tube with a rectangular cross section, vertical slide rails (111) are arranged on the side faces of the corresponding side columns (11) outside the box-type frame, and two ends of each side frame beam (14) are respectively sleeved on the corresponding vertical slide rails (111), so that the side frame beams (14) are movably connected to the corresponding side faces of the box-type frame and are locked and fixed through bolts.
3. The test loading device of the fabricated structural model of claim 1, wherein: the top frame (12) is movably provided with a top frame beam (121), the longitudinal extension directions of the top frame beam (121) and the top frame (12) are the same, and two ends of the top frame beam are sleeved on the corresponding top frame (12).
4. The test loading device of the fabricated structural model as set forth in claim 2, wherein: vertical steel rulers (112) are fixedly arranged on the side faces of the side columns (11) corresponding to the vertical sliding rails (111).
5. The test loading device of the fabricated structural model of claim 1, wherein: and the top frame (12) is fixedly provided with a laser displacement meter (122) through a mechanical arm.
6. The test loading device of the fabricated structural model of claim 1, wherein: more than two connecting plates (143) are uniformly distributed along the beam body of each side frame beam (14), one end of each connecting plate is fixedly connected with the upper end of the corresponding side frame beam (14), and the other end of each connecting plate is sleeved on the corresponding transverse sliding rail (141), so that the transverse sliding rails (141) are suspended above the side frame beams (14).
7. The test loading device of the fabricated structural model of claim 1, wherein: more than two horizontal reinforcing rods (131) are arranged on the bottom frame (13), and each reinforcing rod (131) is arranged in parallel to the width direction of the bottom frame (13); the lower ends of the two sides of the bottom frame (13) are fixedly provided with vertical upright posts.
CN201911142561.4A 2018-11-27 2019-11-20 Test loading device of assembled structure model Pending CN110827655A (en)

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CN201811423527 2018-11-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192395A (en) * 2021-05-07 2021-07-30 哈尔滨工业大学 Can assemble multi-functional shearing type frame construction dynamics experiment model device

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CN206970155U (en) * 2017-07-04 2018-02-06 安徽皖欣环境科技有限公司 A kind of laboratory bolt special lifting platform
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CN102514723A (en) * 2011-11-18 2012-06-27 南京航空航天大学 Aerodynamic load simulation device
CN104332086A (en) * 2014-09-19 2015-02-04 大连理工大学 Structural mechanics experiment platform
CN104631519A (en) * 2015-01-13 2015-05-20 河海大学 Pile foundation bearing characteristic model test device and method under complicated load effect
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113192395A (en) * 2021-05-07 2021-07-30 哈尔滨工业大学 Can assemble multi-functional shearing type frame construction dynamics experiment model device

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