CN219936570U - Portable reinforced concrete beam integrated multifunctional loading teaching device - Google Patents
Portable reinforced concrete beam integrated multifunctional loading teaching device Download PDFInfo
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- CN219936570U CN219936570U CN202321161375.7U CN202321161375U CN219936570U CN 219936570 U CN219936570 U CN 219936570U CN 202321161375 U CN202321161375 U CN 202321161375U CN 219936570 U CN219936570 U CN 219936570U
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 95
- 239000010959 steel Substances 0.000 claims abstract description 95
- 238000005452 bending Methods 0.000 claims abstract description 15
- 238000010008 shearing Methods 0.000 claims abstract description 12
- 238000002474 experimental method Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a portable reinforced concrete beam integrated multifunctional loading teaching device, which comprises a box-shaped base and a steel frame positioned at the top of the box-shaped base, wherein an electric cylinder is arranged in the box-shaped base, two ends of the steel frame are provided with detachable supports, a test beam is arranged between the upper parts of the two detachable supports, and a sensor is arranged on the test beam; a second pressing beam is arranged above the sensor when the test beam is subjected to bending, shearing and anti-experiment; and a torsion-resistant loading connecting piece is arranged above the sensor when the torsion test is carried out on the test beam, and the connecting piece is connected with the sensor through a screw rod and a circumferential bolt on the head. According to the experimental device, the detachable support and the cushion block are adjusted, and the bending, shearing and twisting three loading modes are combined into a whole, so that the complicated step of replacing equipment when various loading modes are carried out is omitted, and various shearing and span ratio loading can be carried out.
Description
Technical Field
The utility model relates to the technical field of building teaching devices, in particular to a portable reinforced concrete beam integrated multifunctional loading teaching device.
Background
In the teaching process of civil engineering experiments, various loading forms of the beam are often needed to be carried out to deeply and completely introduce the mechanical properties of the beam, but traditional teaching equipment in a laboratory can only carry out a single loading mode and can only carry out fixed shear span ratio loading, and when other loading is needed, experimental equipment needs to be replaced, so that the method has great limitation, and a great amount of time is needed in the replacement process.
However, the existing portable teaching device can only perform a single loading test, such as CN110853485a can only perform a bending test.
Disclosure of Invention
In order to overcome the problems of the prior art, the utility model aims to provide the portable reinforced concrete beam integrated multifunctional loading teaching device, and the experimental device which combines three loading modes of bending shear and torsion into a whole is provided by adjusting the detachable support and the cushion block, so that the complicated step of replacing equipment when various loading modes are carried out is omitted, and various shear span ratio loading can be carried out.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a portable reinforced concrete beam integration multifunctional loading teaching device, includes box base 1 and is located steel frame 2 at box base 1 top, arranges the electric jar in the box base 1, and steel frame 2 both ends are provided with and dismantle support 3, set up test beam 9 between two and dismantle support 3 top, be provided with sensor 4 on the test beam 9;
a second pressing beam 6 is arranged above the sensor 4 when the test beam 9 is subjected to bending, shearing and anti-experiment;
a torsion-resistant loading connecting piece 7 is arranged above the sensor 4 when the test beam 9 is subjected to torsion test, and the connecting piece 7 is connected with the sensor 4 through a screw rod and a circumferential bolt on the head.
The sensor 4 is connected with the second pressing beam 6 through a circumferential bolt.
The front and back of the steel frame 2 are shaped like Chinese character 'tian' 10, and the middle of the bottom of the surface of the shaped Chinese character 'tian' 10 is provided with oblique supports 11 towards the upper corners of two ends respectively, the side and the bottom are shaped like Chinese character 'ri' 12, the top is shaped like Chinese character 'kou' 13, the middle layer is shaped like Chinese character 'mu' 14, the middle welding electric cylinder support in the bottom is used for placing the electric cylinder, the steel plate is only arranged at the lower floor of the steel frame 2, the side is provided with the recess that supplies to hold, the top surface middle part is provided with oval hole in the position near the front, corresponds to the inside electric cylinder extension position of the box-type base 1.
The two ends of the square 13 at the top of the steel frame 2 are provided with bolt holes, the two bolt holes are close together to form a group, the detachable supports 3 are arranged on the bolt holes, one detachable support 3 corresponds to 4 groups, two detachable support 3 positions are arranged together, and the two groups of bolt holes are formed in 8 groups.
The detachable support 3 comprises a second steel plate 18, an I-steel 19 with longitudinal stiffening ribs and 8 screws, bolt holes which are the same as the two ends of the steel frame 2 are formed in the second steel plate 18 and the I-steel 19 with the longitudinal stiffening ribs, the detachable support 3 is fixedly arranged on the steel frame 2 through screw connection, and nuts are arranged at the upper end and the lower end of the screw perforation.
When the test beam 9 is subjected to bending, shearing and anti-vibration tests, the bending loading connecting piece is a first pressing beam 5, the first pressing beam 5 is provided with a I-steel 15 with longitudinal stiffening ribs, an opening steel plate 16 is welded in the middle of the top of the I-steel 15 with the longitudinal stiffening ribs, holes are arranged at four corners of the first steel plate 16, holes are formed in the bottom flanges of the I-steel 15 with the longitudinal stiffening ribs, cushion blocks 8 are connected with the holes, the cushion blocks 8 are positioned at two ends of a second pressing beam 6, the second pressing beam 6 is a steel plate with a middle variable cross section, the middle of the second pressing beam is provided with holes the same as the welding steel plate of the first pressing beam 5, an annular hole is formed in the center of the second pressing beam, the bottom of the first pressing beam 5 is connected with a round steel plate 17 with the same annular hole, the sensor 4 is connected with the round steel plate 17, and the two pressing beams are connected with the sensor 4 through screws.
The cushion block 8 is divided into a fixed support and a slidable support.
When the test beam 9 is subjected to torsion resistance test, a torsion resistance loading connecting piece 7 is used, a trapezoid steel plate is welded between two steel plates with different lengths, a longitudinal stiffening rib is welded on a web plate, a long steel plate is connected with the other same steel plate through a screw rod, and the middle of the test beam 9 passes through the two long steel plates.
The test beams 9 are arranged on the two detachable supports 3, the middle part of each test beam passes through the space between the first pressing beam 5 and the second pressing beam 6, and the detachable supports 3 are screwed at determined positions and are fixed with bolts on the pressing beams.
The detachable support 3 is arranged at the position, close to the front surface, of the two ends of the steel frame 2 when bending and shearing tests are carried out, and is arranged at the position, close to the back surface, of the two ends of the steel frame 2 when torsion tests are carried out.
The utility model has the beneficial effects that:
1. multifunctional device
Compared with the traditional laboratory beam loading teaching device, the beam bending, shearing, twisting and anti-seismic experiment can be performed by adjusting the positions of the detachable support 3 and the cushion block 8, so that the problem that experimental equipment needs to be replaced when different loading experiments are performed in teaching is solved, and teaching efficiency is greatly improved.
2. Convenient to disassemble
When the utility model is used for replacing different loading forms, only the bolts of the detachable support 3 and the cushion block 8 are required to be replaced, so that the utility model is labor-saving, simple, convenient and convenient, students can also operate by themselves, and the time required for replacement is saved.
3. Good portability
Compared with the traditional reaction frame teaching device in a laboratory, the device has the advantages of small volume, light weight, capability of being split into different components, convenience in carrying, capability of being brought into a classroom, simplicity in installation and operation and capability of being automatically operated by students.
Drawings
Fig. 1 is a general schematic of the present utility model.
Fig. 2 is a schematic view of a steel frame of the present utility model.
Fig. 3 is a schematic view of the mount of the present utility model.
Fig. 4 is a schematic view of a press beam of the present utility model.
Fig. 5 is a schematic view of the torsion load resistant connector of the present utility model.
Reference numerals are defined as follows:
a box-shaped base 1; a steel frame 2; a detachable support 3; a sensor 4; a first pressing beam 5; a second pressing beam 6; a torsion-resistant loading connection 7; a cushion block 8; a test beam 9; a Chinese character 'Tian' shape 10; a diagonal support 11; a Chinese character 'ri' shape 12; a mouth shape 13; a mesh shape 14; pressing a beam I-steel 15; perforated steel plate I16; a circular steel plate 17; a detachable support steel plate II 18; and the support I-steel 19 can be detached.
Detailed Description
The present utility model will be described in further detail with reference to examples.
Referring to fig. 1, the utility model relates to a portable reinforced concrete beam bending-shearing-twisting integrated multifunctional loading teaching device, which comprises a box base 1 and a steel frame 2, wherein an electric cylinder is arranged in the box base 1, two ends of the steel frame 2 are provided with detachable supports 3, test beams 9 are arranged on the two supports, a pressing beam is arranged above a sensor 4 when bending, shearing and anti-experiment is carried out, the sensor 4 is connected with the pressing beam 2 by adopting a circumferential bolt, a torsion-resistant loading connecting piece 7 is arranged above the sensor 4 when torsion resistance test is carried out, and the head of the connecting piece is connected with the sensor 4 by using a screw rod and the circumferential bolt.
When bending experiments are carried out, two or four-point loading can be carried out through installing the cushion blocks 8 at the lower end of the first pressing beam 5, and simultaneously, two cushion blocks on the second pressing beam 6 are installed, optionally, when shearing experiments are carried out, only the cushion blocks 8 at the two ends are installed at the first pressing beam 5, optionally, when anti-seismic experiments are carried out, only the cushion blocks 8 at the middle part of the first pressing beam 5 are installed, optionally, when torsion experiments are carried out, the support is installed at the position of the steel frame 2 close to the back face, and the pressing beam is replaced with the torsion-resistant loading connecting piece 7, and the acting force of the electric cylinder vertically faces the sensor 4 from the opening position of the steel plate at the top surface of the box-shaped base 1.
The steel frame 2 has a structure shown in fig. 2, in which the front and back sides are in a shape of a Chinese character 'tian' 10, the side and bottom sides are in a shape of a Chinese character 'ri' 12, the middle layer is in a shape of a Chinese character 'mu' 14, a hole is formed in the center of a small steel plate in the middle, the top side is in a shape of a Chinese character 'kou' 13, and further, the front and back sides are provided with oblique supports 11 respectively toward upper corners of both ends with the middle of the bottom.
Referring to fig. 3, further, the lower part of the steel plate is composed of an i-steel 19 welded with a longitudinal stiffening rib and an upper steel plate II 18, the upper steel plate and the lower flange of the i-steel are respectively provided with the same bolt holes, nuts are arranged on two sides of the steel plate, and particularly, two nuts are arranged on each screw of the uppermost steel plate.
Referring to fig. 4, further, the press beam is composed of a first press beam 5 and a second press beam 6, wherein the first press beam 5 is an i-steel 15 provided with a longitudinal stiffening rib, the stiffening rib is a right trapezoid steel plate, an open-pore steel plate 16 is welded in the middle of the top, holes are arranged at four corners of the steel plate, holes are formed in the flange of the bottom of the i-steel for installing a cushion block 8, and the cushion block is divided into a fixed support and a slidable support; the second press beam 6 is a steel plate with a middle variable cross section, two ends of the second press beam are provided with cushion blocks 8, the middle of the second press beam is provided with a hole which is the same as the welding steel plate of the first press beam 5, the center of the second press beam is provided with an annular hole, a round steel plate 17 with the same hole is connected, the sensor 4 is connected with the round steel plate, the two press beams are connected with the sensor 4 through screws, nuts are arranged on two sides of the steel plate, and particularly, two nuts are arranged on the uppermost layer and the lowermost layer; the test beam 9 is arranged between the first press beam 5 and the second press beam 6.
Referring to fig. 5, further, the connecting piece is formed by welding a trapezoid steel plate between two steel plates with different lengths, welding a longitudinal stiffening rib on a web plate, welding two steel plates consisting of square and semicircle on a short steel plate, forming a round hole in the middle of the steel plates, connecting a long screw rod, and connecting the round steel plate with the sensor 4 at the other end. The long steel plates are connected with another identical steel plate by a screw rod, and the middle of the test beam 9 passes through the two long steel plates.
Claims (10)
1. The portable reinforced concrete beam integrated multifunctional loading teaching device is characterized by comprising a box base (1) and a steel frame (2) positioned at the top of the box base (1), wherein an electric cylinder is arranged in the box base (1), two ends of the steel frame (2) are provided with detachable supports (3), a test beam (9) is arranged between the two detachable supports (3), and a sensor (4) is arranged on the test beam (9);
a pressing beam II (6) is arranged above the sensor (4) when the test beam (9) is subjected to bending, shearing and experiment resistance;
and a torsion-resistant loading connecting piece (7) is arranged above the sensor (4) when the test beam (9) is subjected to torsion test, and the connecting piece (7) is connected with the sensor (4) through a screw rod for the head and a circumferential bolt.
2. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein the sensor (4) is connected with the pressing beam II (6) through a circumferential bolt.
3. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein the front side and the back side of the steel frame (2) are in a shape of a Chinese character 'tian' (10), inclined supports (11) are respectively arranged at the upper corners of two ends in the middle of the bottom of the surface of the Chinese character 'tian' (10), the side surface and the bottom layer are in a shape of a Chinese character 'ri' (12), the top layer is a shape of a Chinese character 'kou' (13), the middle layer is a shape of a Chinese character 'mu' (14), a cylinder support is welded in the middle of the bottom layer and used for placing a cylinder, a steel plate is only arranged on the lower layer of the steel frame (2), a groove for holding a hand is arranged on the side surface, an oval hole is formed in the middle of the top surface near the front side, and the extending position of the cylinder corresponds to the inside of the box-shaped base (1).
4. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 3, wherein bolt holes are formed in two ends of a square (13) at the top of the steel frame (2), the two bolt holes are close to each other to form a group, the detachable supports (3) are arranged on the bolt holes, 4 groups of the detachable supports (3) are arranged correspondingly, and the positions of the two detachable supports (3) and 8 groups of the bolt holes are arranged altogether.
5. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein the detachable support (3) comprises a second steel plate (18), an I-shaped steel (19) with longitudinal stiffening ribs and 8 screws, the second steel plate (18) and the I-shaped steel (19) with longitudinal stiffening ribs are provided with bolt holes identical to two ends of the steel frame (2), the detachable support (3) is fixedly connected to the steel frame (2) through the screws, and nuts are arranged at the upper end and the lower end of the perforated part of the screws.
6. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein when the test beam (9) is subjected to bending, shearing and vibration resistance tests, the bending loading connecting piece is a first pressing beam (5), the first pressing beam (5) is provided with a I-shaped steel (15) with longitudinal stiffening ribs, an open-pore steel plate (16) is welded in the middle of the top of the I-shaped steel (15) with longitudinal stiffening ribs, holes are arranged at four corners of the first steel plate (16), holes are formed in bottom flanges of the I-shaped steel (15) with longitudinal stiffening ribs, a hole connecting cushion block (8) is arranged at two ends of the second pressing beam (6), the second pressing beam (6) is a steel plate with a middle variable cross section, the middle is provided with the same holes as the first pressing beam (5) which are welded, an annular hole is formed in the center, the bottom of the first pressing beam (5) is connected with a circular steel plate (17) with the same annular hole, and the two pressing beams are connected with the sensor (4) through screws.
7. The integrated multifunctional loading teaching device for the portable reinforced concrete beam according to claim 6, wherein the cushion block (8) is divided into a fixed support and a slidable support.
8. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein when the test beam (9) is subjected to torsion resistance test, a torsion resistance loading connecting piece (7) is used, the connecting piece (7) is formed by welding a trapezoid steel plate between two steel plates with different lengths, longitudinal stiffening ribs are welded on a web plate, a long steel plate is connected with the other same steel plate through a screw rod, and the middle of the test beam (9) penetrates through the two long steel plates.
9. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 8, wherein the test beams (9) are arranged on two detachable supports (3), and the middle part of the test beams passes through between the first pressing beam (5) and the second pressing beam (6).
10. The portable reinforced concrete beam integrated multifunctional loading teaching device according to claim 1, wherein the detachable support (3) is arranged at the position, close to the front, of the two ends of the steel frame (2) when bending and shearing tests are carried out, and is arranged at the position, close to the back, of the two ends of the steel frame (2) when torsion tests are carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321161375.7U CN219936570U (en) | 2023-05-15 | 2023-05-15 | Portable reinforced concrete beam integrated multifunctional loading teaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321161375.7U CN219936570U (en) | 2023-05-15 | 2023-05-15 | Portable reinforced concrete beam integrated multifunctional loading teaching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936570U true CN219936570U (en) | 2023-10-31 |
Family
ID=88494520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321161375.7U Active CN219936570U (en) | 2023-05-15 | 2023-05-15 | Portable reinforced concrete beam integrated multifunctional loading teaching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936570U (en) |
-
2023
- 2023-05-15 CN CN202321161375.7U patent/CN219936570U/en active Active
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