CN214622007U - Compression bar test device - Google Patents
Compression bar test device Download PDFInfo
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- CN214622007U CN214622007U CN202022679289.8U CN202022679289U CN214622007U CN 214622007 U CN214622007 U CN 214622007U CN 202022679289 U CN202022679289 U CN 202022679289U CN 214622007 U CN214622007 U CN 214622007U
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Abstract
The utility model discloses a depression bar test device relates to structural engineering technical field, including self-balancing counter-force frame, the jack, load sensor, spacing roof beam, assembled support and test piece, spacing roof beam is installed at self-balancing counter-force frame's middle part, the jack is installed on self-balancing counter-force frame, load sensor installs the side at spacing roof beam, load sensor and jack set up relatively and are provided with the space, the test piece level sets up, the one end of test piece is connected with the another side of spacing roof beam through an assembled support, the other end of test piece is through an assembled support and self-balancing counter-force frame attach. The utility model discloses during the use, the jack passes through load sensor, spacing roof beam, assembled support with the load and acts on the test piece, and self-balancing counter-force frame can realize the self-balancing, need not to set up the side direction and supports, and spacing roof beam plays limiting displacement, the utility model discloses a test piece installation and experimental convenient operation need not to set up the scaffold frame or use the lift truck, low in manufacturing cost.
Description
Technical Field
The utility model relates to a structural engineering technical field especially relates to a depression bar test device.
Background
In the field of structural engineering, a large long column press or a vertical reaction frame is generally used as a test device in the compression bar test.
The long column type press is a complete set of shaping equipment, has perfect functions, but the test device based on the large press has the following limitations: firstly, the large press is high in cost; secondly, the size of the press is always a limiting condition for the test; thirdly, for a long pressure bar test piece, the operation in the installation and test process is inconvenient, and a scaffold is usually required to be erected or a lift truck is required to be equipped.
The vertical reaction frame consists of a vertical column, a cross beam and a ground anchor, and generally, a jack, a pressure sensor, a support and a test piece are arranged in the vertical reaction frame to form a compression bar test device. However, the test device based on the vertical reaction frame has the following limitations: firstly, the vertical reaction frame often lacks a limiting device, such as an experimental device for bending a steel member disclosed in a Chinese patent with the publication number of CN 106644534A; secondly, for longer depression bar test pieces, the operation in installation and the test process is very inconvenient, and a scaffold needs to be erected or a lift truck needs to be equipped.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a depression bar test device to solve the problem that above-mentioned prior art exists, test piece installation and experimental convenient operation need not to set up the scaffold frame or use the lift truck, and low in manufacturing cost.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a depression bar test device, including self-balancing counter-force frame, jack, load sensor, spacing roof beam, assembled support and test piece, spacing roof beam is installed the middle part of self-balancing counter-force frame, the jack is installed on the self-balancing counter-force frame, load sensor installs a side of spacing roof beam, load sensor with the jack sets up relatively and is provided with the space, the test piece level sets up, the one end of test piece is through one assembled support with the another side of spacing roof beam is connected, the other end of test piece is through one assembled support with self-balancing counter-force frame connects.
Preferably, the self-balancing reaction frame comprises two end beams and two longitudinal rods, the two end beams and the two longitudinal rods are oppositely arranged, the two end beams and the two longitudinal rods form a rectangular frame, and the end beams and the longitudinal rods are detachably connected.
Preferably, the end beam comprises two wing plates which are arranged oppositely, an end web plate is arranged between the two wing plates, the two wing plates and the end web plate form an I-shaped structure, a plurality of transverse stiffening ribs are arranged on two sides of the end web plate, each transverse stiffening rib is fixedly connected with the end web plate and the two wing plates, and bolt holes are arranged at two ends of the end web plate;
the vertical rod comprises a plurality of column rods, each column rod comprises an I-shaped rod body, connecting end plates are arranged at two ends of the I-shaped rod body, and a plurality of longitudinal stiffening ribs are arranged between the connecting end plates and the I-shaped rod bodies.
Preferably, the limiting beam comprises a front wing plate, a rear wing plate and a web plate, the front wing plate and the rear wing plate are oppositely arranged, the front wing plate is detachably connected with the load sensor, the rear wing plate is detachably connected with the assembled support, the front wing plate, the rear wing plate and the web plate form an I-shaped structure, a plurality of limiting stiffening plates are arranged on two sides of the web plate, and the limiting stiffening plates at two ends are provided with hoisting holes; the two ends of the web plate are respectively provided with an end plate, each end plate is provided with a plurality of strip holes, a limiting bolt penetrates through the strip holes to detachably connect the limiting beam with the self-balancing reaction frame, the lower end of each end plate is provided with a bottom plate, the outer side of each end plate and the lower end of each bottom plate are respectively provided with two round steel rods, the round steel rods on the outer side of the end plate are in contact with the self-balancing reaction frame, and each round steel rod rolls along the direction parallel to the axis of the test piece.
Preferably, the bottom surface of bottom plate be provided with the arc recess that the round steel stick matches, one side on the end plate the round steel stick is spacing through A type tooth piece, the opposite side on the end plate the round steel stick is spacing through B type tooth piece and C type tooth piece.
Preferably, the A-shaped tooth block is a bilateral limiting block with a middle groove, and the B-shaped tooth block and the C-shaped tooth block are both wedge-shaped blocks; each round steel bar on the end plate on one side is limited through two A-shaped tooth blocks, each round steel bar on the end plate on the other side is limited through two groups of limiting structures comprising two B-shaped tooth blocks and C-shaped tooth blocks, and the two B-shaped tooth blocks and the C-shaped tooth blocks of each group are arranged in a triangular mode.
Preferably, the assembled support comprises a constraint module and two joint modules, wherein a plurality of mounting holes are formed in each joint module, the constraint module is located between the joint modules and detachably connected with the joint modules, the constraint module comprises a spherical hinge convex block and a spherical hinge concave block, the spherical hinge convex block is matched with the spherical hinge concave block, the spherical hinge convex block and the spherical hinge concave block are used for realizing constraint conditions, and load conditions are realized through the constraint module and the two joint modules at different mounting positions.
Preferably, a spherical protrusion is arranged on one side of the spherical hinge convex block, a spherical groove matched with the spherical protrusion is arranged on one side of the spherical hinge concave block, and a plurality of bolt holes used for being connected with the joint module are arranged on the spherical hinge convex block and the spherical hinge concave block;
the two sides of the restraint module are respectively provided with a connecting shaft block, the two end faces of the spherical hinge convex block and the spherical hinge concave block are respectively provided with a fixing hole, and the connecting shaft blocks are arranged at the fixing holes through rotating shaft bolts; the connecting shaft block is provided with a through hole, and the size of the through hole is larger than that of the rotating shaft bolt;
the upper ends and the lower ends of the spherical hinge convex blocks and the spherical hinge concave blocks are provided with lug plates.
Preferably, the joint module comprises a top plate, a force transmission plate and a bottom plate, the force transmission plate is positioned between the top plate and the bottom plate, and the mounting holes are positioned on the top plate and the bottom plate; the dowel plate includes in dowel plate, lower dowel plate, riser and two dowel plates, go up the dowel plate with down the dowel plate is located the both ends of riser just form the I shape structure, two well dowel plate is located the both sides of riser, go up the dowel plate down the dowel plate riser and two well dowel plate becomes king's style of calligraphy structure.
Preferably, cushion blocks are arranged below two ends of the self-balancing reaction force frame and below the limiting beam; and the self-balancing reaction frame is anchored with the test site through an earth anchor bolt.
The utility model discloses for prior art gain following technological effect:
the utility model discloses during the use, the jack passes through load sensor, spacing roof beam, assembled support with the load and acts on the test piece, and self-balancing counter-force frame can realize the self-balancing, need not to set up the side direction and supports, and spacing roof beam plays limiting displacement, the utility model discloses a test piece installation and test convenient operation, the test piece level sets up, need not to set up the scaffold frame or use the lift truck, low in manufacturing cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a compression bar testing apparatus according to the present invention;
FIG. 2 is a schematic view of the compression bar test apparatus according to the present invention;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
fig. 5 is a schematic view of the disassembly of the limiting beam in the present invention;
fig. 6 is a schematic view of a step of mounting the limiting beam according to the present invention;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
fig. 8 is a schematic view of a second step of mounting the limiting beam in the present invention;
FIG. 9 is a cross-sectional view C-C of FIG. 8;
fig. 10 is a schematic view of a third step of mounting the limiting beam in the present invention;
FIG. 11 is a cross-sectional view D-D of FIG. 10;
fig. 12 is a schematic view of a fourth step of mounting the limiting beam in the present invention;
FIG. 13 is a cross-sectional view E-E of FIG. 12;
FIG. 14 is a schematic view of the assembled support base of the present invention, which can be used in various working conditions;
FIG. 15 is a schematic view of the present invention illustrating the disassembly of an assembled support base for various working conditions;
fig. 16 is a top view of the restraint module of the present invention in a universal hinge state;
fig. 17 is a side view of the restraint module in a gimbal hinge state;
fig. 18 is a top view of the restraint module of the present invention in a one-way hinged state;
fig. 19 is a side view of the restraint module of the present invention in a one-way articulated state;
fig. 20 is a schematic view of a connector module of the present invention;
fig. 21 is a schematic view of the coincidence of the axes of the restraint module and the joint module of the present invention;
fig. 22 is a schematic view of the one-way eccentric between the restraint module and the joint module of the present invention;
fig. 23 is a schematic diagram of the bidirectional eccentricity between the restraint module and the joint module according to the present invention;
wherein: 1-joint module, 2-mounting hole, 3-spherical hinge convex block, 4-spherical hinge concave block, 5-connecting shaft block, 6-fixing hole, 7-rotating shaft bolt, 8-lug plate, 9-top plate, 10-bottom plate, 11-upper force transfer plate, 12-lower force transfer plate, 13-vertical plate, 14-middle force transfer plate, 15-constraint module, 16-jack, 17-load sensor, 18-limit beam, 19-test piece, 20-end beam, 21-longitudinal rod, 22-front wing plate, 23-rear wing plate, 24-web plate, 25-hoisting hole, 26-limit stiffening plate, 27-end plate, 28-limit bolt, 29-round steel bar, 30-bottom plate, 31-A type tooth block, 32-B type tooth block, 33-C type tooth block, 34-cushion block, 35-ground anchor bolt and 36-assembled support.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a depression bar test device to solve the problem that above-mentioned prior art exists, test piece installation and experimental convenient operation need not to set up the scaffold frame or use the lift truck, and low in manufacturing cost.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-23: the embodiment provides a compression bar test device, including self-balancing reaction frame, jack 16, load sensor 17, limit beam 18, assembled support 36 and test piece 19, limit beam 18 installs the middle part at self-balancing reaction frame, jack 16 sets up on self-balancing reaction frame, load sensor 17 installs the side at limit beam 18, load sensor 17 sets up and is provided with the space with jack 16 is relative, load sensor 17 adopts large-tonnage column type pressure sensor, load sensor 17 is fixed on limit beam 18 with the bolt, space control between jack 16 and load sensor 17 is in jack 16's stroke range. The test piece 19 is horizontally arranged, one end of the test piece 19 is connected with the other side surface of the limiting beam 18 through an assembled support 36, and the other end of the test piece 19 is connected with the self-balancing reaction force frame through the assembled support 36. When this embodiment uses, jack 16 passes through load sensor 17 with the load, spacing roof beam 18 is used in test piece 19, and self-balancing reaction force frame can realize the self-balancing, need not to set up the side direction and supports, and spacing roof beam 18 plays limiting displacement, and the test piece 19 installation and the experimental convenient operation of this embodiment need not to set up the scaffold frame or use the lift truck, low in manufacturing cost.
In this embodiment, the self-balancing reaction frame includes two end beams 20 disposed opposite to each other and two longitudinal bars 21 disposed opposite to each other, the two end beams 20 and the two longitudinal bars 21 form a rectangular frame, and the end beams 20 and the longitudinal bars 21 are detachably connected.
Specifically, the end beam 20 includes two wing plates arranged oppositely, an end web plate is arranged between the two wing plates, the two wing plates and the end web plate form an i-shaped structure, a plurality of transverse stiffening ribs are arranged on both sides of the end web plate, each transverse stiffening rib is fixedly connected with the end web plate and the two wing plates by welding, and bolt holes are arranged on both ends of the end web plate; the vertical rod 21 comprises a plurality of column rods, adjacent column rods are connected through bolts, the two column rods are arranged in the embodiment, according to the length of the test piece 19, when the test piece 19 is short, two short column rods are arranged, when the test piece 19 is long, two long column rods are arranged, each column rod comprises an I-shaped rod body, the two ends of each I-shaped rod body are respectively provided with a connecting end plate, a plurality of longitudinal stiffening ribs are arranged between each connecting end plate and the corresponding I-shaped rod body, and the I-shaped rod bodies, the connecting end plates and the longitudinal stiffening ribs are connected through welding.
In this embodiment, the limiting beam 18 includes a front wing plate 22, a rear wing plate 23 and a web plate 24, the front wing plate 22 and the rear wing plate 23 are oppositely arranged, the front wing plate 22 is detachably connected with the load sensor 17, the rear wing plate 23 is detachably connected with the assembled support 36, the front wing plate 22, the rear wing plate 23 and the web plate 24 form an i-shaped structure, a plurality of limiting stiffening plates 26 are arranged on both sides of the web plate 24, and the limiting stiffening plates 26 at both ends are provided with hoisting holes 25; the both ends of web 24 set up an end plate 27 respectively, have seted up a plurality of rectangular holes on each end plate 27, and spacing bolt 28 passes rectangular hole and can dismantle spacing roof beam 18 and self-balancing reaction frame and be connected, and the lower extreme of each end plate 27 is provided with a bottom plate 30, and the outside of each end plate 27, the lower extreme of each bottom plate 30 all are provided with two round steel stick 29, and the round steel stick 29 in the end plate 27 outside contacts with self-balancing reaction frame, and each round steel stick 29 all rolls along the direction parallel with the axis of test piece 19.
Specifically, the bottom surface of the bottom plate 30 is provided with an arc-shaped groove matched with the round steel bar 29, the round steel bar 29 on the end plate 27 on one side is limited by the A-shaped tooth block 31, and the round steel bar 29 on the end plate 27 on the other side is limited by the B-shaped tooth block 32 and the C-shaped tooth block 33.
The A-shaped tooth block 31 is a bilateral limiting block with a middle groove, and the B-shaped tooth block 32 and the C-shaped tooth block 33 are wedge-shaped blocks; each round steel bar 29 on the end plate 27 on one side is limited through two A-shaped tooth blocks 31, each round steel bar 29 on the end plate 27 on the other side is limited through two groups of limiting structures comprising two B-shaped tooth blocks 32 and a C-shaped tooth block 33, and the two B-shaped tooth blocks 32 and the C-shaped tooth block 33 in each group are arranged in a triangular mode.
In this embodiment, the spacers 34 are disposed below both ends of the self-balancing reaction force frame and below the limit beam 18, and specifically, the spacers 34 are disposed below both the end beams 20 and below the limit beam 18. The cushion block 34 below the limit beam 18 enables the central point of the limit beam 18 to be aligned with the central point of the jack 16; the ground anchor bolt 35 passes through the bolt holes at the two ends of the end web plate, so that the self-balancing counter-force frame is anchored with a test field, and the test safety can be ensured.
In this embodiment, the installation process of the limiting beam 18 is as follows:
(1) the A-shaped tooth block 31 is welded on the end plate 27 at one end, and the B-shaped tooth block 32 is welded on the end plate 27 at the other end;
(2) placing the limiting beam 18 into a self-balancing reaction force frame, placing a bottom round steel bar 29 under a bottom plate 30 of the limiting beam 18, and placing side round steel bars 29 at positions of an A-shaped tooth block 31 and a B-shaped tooth block 32;
(3) the C-shaped tooth block 33 is plugged in to enable the limiting beam 18 to be completely clamped by the self-balancing reaction frame, and then the C-shaped tooth block 33 is welded and fixed on the end plate 27, so that the situation that the limiting beam 18 cannot be installed in the self-balancing reaction frame due to machining errors can be avoided, and the situation that a large gap exists between the limiting beam 18 and the self-balancing reaction frame after installation can also be avoided;
(4) installing a limit bolt 28, enabling the limit bolt 28 to be in fit contact with the longitudinal rod 21 of the self-balancing reaction frame, and then screwing and fixing the limit bolt 28; the limiting bolt 28 ensures that the limiting beam 18 does not vertically displace, after the limiting beam 18 is installed, the lateral displacement of the limiting beam 18 is limited and can only move in the loading direction, and meanwhile, because the side round steel bar 29 and the bottom round steel bar 29 are placed, the resistance of the limiting beam 18 in moving is small.
The embodiment also comprises two assembled supports 36, one end of the test piece 19 is connected with the other side of the limiting beam 18 through one assembled support 36, and the other end of the test piece 19 is connected with the self-balancing reaction frame through one assembled support 36; the assembled support 36 of this embodiment includes restraint module 15 and two joint modules 1, be provided with a plurality of mounting holes 2 on two joint modules 1, restraint module 15 is located between two joint modules 1 and can dismantle with two joint modules 1 and be connected, restraint module 15 includes spherical hinge lug and spherical hinge concave 4, spherical hinge lug and spherical hinge concave 4 match each other, spherical hinge lug and spherical hinge concave 4 are used for realizing the constraint condition, realize the load condition through restraint module 15 and two difference of joint module 1 mounted position. In the embodiment, the spherical hinge convex block and the spherical hinge concave block 4 are used for realizing constraint conditions, and the load conditions are realized through the difference of the installation positions of the constraint module 15 and the two joint modules 1. When the restraining module 15 is superposed with the axes of the two joint modules 1, the load condition that the axes are pressed is realized; when the restraining module 15 is superposed with the axis of one joint module 1 and is eccentrically connected with the other joint module 1, the load condition of unidirectional eccentric compression can be realized; when the constraint module 15 and the two joint modules 1 are eccentrically connected in two directions, a bidirectional eccentric compression load condition can be realized. The present embodiment achieves boundary conditions for multiple operating conditions through the constraint module 15 and the two connector modules 1.
In this embodiment, one side of ball pivot lug is provided with spherical protruding, one side of ball pivot concave brick 4 is provided with the spherical recess that matches with spherical protruding, all be provided with a plurality of bolt holes that are used for being connected with joint module 1 on ball pivot lug and the ball pivot concave brick 4, the bolt passes the bolt hole and is connected ball pivot lug or ball pivot concave brick 4 with joint module 1, the bolt is hexagon socket countersunk head bolt, there is the chamfer in the drill way department of bolt hole, the bolt can imbed in the bolt hole completely, avoid restraint module 15 to receive the influence of bolt when rotating, the bolt hole is located ball pivot lug and the four corners department of ball pivot concave brick 4. The spherical hinge convex block is matched with the spherical hinge concave block 4 to realize universal hinge shape.
In this embodiment, both sides of the constraint module 15 are provided with a connecting shaft block 5, fixing holes 6 have been all opened to the two end faces of the spherical hinge convex block and the spherical hinge concave block 4, the fixing holes 6 are threaded holes, the center of the two end faces of the spherical hinge convex block and the spherical hinge concave block 4 is opened to the specific fixing holes 6, the connecting shaft block 5 is installed in the fixing holes 6 through the rotating shaft bolt 7, in this embodiment, a through hole has been opened on the connecting shaft block 5, the size of the through hole is greater than the size of the rotating shaft bolt 7, the rotating shaft bolt 7 passes through the through hole and the fixing holes 6 in sequence, and the connecting shaft block 5 is installed on the constraint module 15. By providing the connecting shaft block 5 on the restraint module 15, a one-way hinge configuration can be achieved.
In this embodiment, the upper end and the lower extreme of spherical hinge lug and spherical hinge concave block 4 all are provided with otic placode 8, and otic placode 8 is connected through the welding with spherical hinge lug and spherical hinge concave block 4, and otic placode 8 has two effects: when the device is disassembled and assembled, the ear plate 8 can be conveniently hoisted as a hoisting point; in the test loading process, an iron chain or a U-shaped buckle is arranged between the ear plates 8 as a protection facility, and a larger gap is formed between the iron chain or the U-shaped buckle and the hole of the ear plate 8, so that the rotation of the restraint module 15 is not influenced.
In this embodiment, joint module 1 includes roof 9, dowel steel and bottom plate 10, roof 9 is used for restraint module 15 and connects module 1's being connected, bottom plate 10 is used for connecting module 1 and test piece or reaction frame's being connected, the dowel steel is located between roof 9 and the bottom plate 10, a plurality of mounting holes 2 are located roof 9 and bottom plate 10, the dowel steel includes dowel steel 11, dowel steel 12 down, dowel steel 14 in riser 13 and two, it is located the both ends of riser 13 and forms the I shape structure to go up dowel steel 11 and lower dowel steel 12, dowel steel 14 is located the both sides of riser 13 in two, go up dowel steel 11, lower dowel steel 12, riser 13 and two in dowel steel 14 form king's style of calligraphy structure. The dowel plates are connected with the top plate 9 and the bottom plate 10 through welding.
When the restraining module 15 is superposed with the axes of the two joint modules 1, the load condition that the axes are pressed is realized; when the restraining module 15 is superposed with the axis of one joint module 1 and eccentrically connected with the other joint module 1 (the axis of the restraining module 15 and the axis of the other joint module 1 are positioned on the same horizontal line or vertical line), the load condition of unidirectional eccentric compression can be realized; when the constraint module 15 and the two joint modules 1 are eccentrically connected in two directions (that is, the axis of the constraint module 15 and the axes of the two joint modules 1 are not located on the same horizontal line or the same vertical line), the load condition of bidirectional eccentric compression can be realized.
Therefore, the constraint module 15 can realize the constraint conditions of the unidirectional hinge mode and the universal hinge mode; by changing the position relation between the constraint module 15 and the two joint modules 1, the load condition of axial center compression, the load condition of unidirectional eccentric compression and the load condition of bidirectional eccentric compression can be realized, and six different working conditions, namely an axial center compression universal hinge boundary condition, a unidirectional eccentric compression universal hinge boundary condition, a bidirectional eccentric compression universal hinge boundary condition, an axial center compression unidirectional hinge boundary condition, a unidirectional eccentric compression unidirectional hinge boundary condition and a bidirectional eccentric compression unidirectional hinge boundary condition can be realized by combining and matching the constraint module 15 and the joint modules 1 and arranging the constraint condition and the constraint condition in a crossed manner. Moreover, all parts are connected by bolts, so that the assembly type support is very convenient to disassemble and assemble, and has the advantages of simple structure, high bearing capacity and small friction force during rotation.
Compared with a long column type press machine, the manufacturing cost of the compression bar testing device is low; the compression bar test device of the embodiment greatly facilitates the test piece installation and test operation, and avoids the trouble of erecting a scaffold or using a lift truck; the compression bar testing device of the embodiment can adapt to various test piece sizes; the compression bar testing device of the embodiment can realize various boundary conditions required by tests.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. The utility model provides a depression bar test device which characterized in that: including self-balancing counter-force frame, jack, load sensor, spacing roof beam, assembled support and test piece, spacing roof beam is installed self-balancing counter-force frame's middle part, the jack is installed on the self-balancing counter-force frame, load sensor installs a side of spacing roof beam, load sensor with the jack sets up relatively and is provided with the space, the test piece level sets up, the one end of test piece is through one assembled support with the another side of spacing roof beam is connected, the other end of test piece is through one assembled support with self-balancing counter-force frame connects.
2. The compression bar testing apparatus of claim 1, wherein: the self-balancing reaction frame comprises two end cross beams and two longitudinal rods, wherein the two end cross beams are arranged oppositely, the two longitudinal rods are arranged oppositely, the end cross beams and the two longitudinal rods form a rectangular frame, and the end cross beams and the longitudinal rods are detachably connected.
3. The compression bar testing apparatus of claim 2, wherein: the end cross beam comprises two wing plates which are oppositely arranged, an end web plate is arranged between the two wing plates, the two wing plates and the end web plate form an I-shaped structure, a plurality of transverse stiffening ribs are arranged on two sides of the end web plate, each transverse stiffening rib is fixedly connected with the end web plate and the two wing plates, and bolt holes are formed in two ends of the end web plate;
the vertical rod comprises a plurality of column rods, each column rod comprises an I-shaped rod body, connecting end plates are arranged at two ends of the I-shaped rod body, and a plurality of longitudinal stiffening ribs are arranged between the connecting end plates and the I-shaped rod bodies.
4. The compression bar testing apparatus of claim 1, wherein: the limiting beam comprises a front wing plate, a rear wing plate and a web plate, the front wing plate and the rear wing plate are oppositely arranged, the front wing plate is detachably connected with the load sensor, the rear wing plate is detachably connected with the assembled support, the front wing plate, the rear wing plate and the web plate form an I-shaped structure, a plurality of limiting stiffening plates are arranged on two sides of the web plate, and hoisting holes are formed in the limiting stiffening plates at two ends; the two ends of the web plate are respectively provided with an end plate, each end plate is provided with a plurality of strip holes, a limiting bolt penetrates through the strip holes to detachably connect the limiting beam with the self-balancing reaction frame, the lower end of each end plate is provided with a bottom plate, the outer side of each end plate and the lower end of each bottom plate are respectively provided with two round steel rods, the round steel rods on the outer side of the end plate are in contact with the self-balancing reaction frame, and each round steel rod rolls along the direction parallel to the axis of the test piece.
5. The compression bar testing apparatus of claim 4, wherein: the bottom surface of bottom plate be provided with the arc recess that the round steel stick matches, one side on the end plate the round steel stick is spacing through A type tooth piece, the opposite side on the end plate the round steel stick is spacing through B type tooth piece and C type tooth piece.
6. The compression bar testing apparatus of claim 5, wherein: the A-shaped tooth block is a bilateral limiting block with a middle groove, and the B-shaped tooth block and the C-shaped tooth block are wedge-shaped blocks; each round steel bar on the end plate on one side is limited through two A-shaped tooth blocks, each round steel bar on the end plate on the other side is limited through two groups of limiting structures comprising two B-shaped tooth blocks and C-shaped tooth blocks, and the two B-shaped tooth blocks and the C-shaped tooth blocks of each group are arranged in a triangular mode.
7. The compression bar testing apparatus of claim 1, wherein: the assembled support comprises a constraint module and two joint modules, wherein a plurality of mounting holes are formed in the joint modules, the constraint module is located between the joint modules and detachably connected with the joint modules, the constraint module comprises a spherical hinge convex block and a spherical hinge concave block, the spherical hinge convex block is matched with the spherical hinge concave block, the spherical hinge convex block is used for realizing constraint conditions, and load conditions are realized through the constraint module and the two joint modules at different mounting positions.
8. The compression bar testing apparatus of claim 7, wherein: a spherical bulge is arranged on one side of the spherical hinge convex block, a spherical groove matched with the spherical bulge is arranged on one side of the spherical hinge concave block, and a plurality of bolt holes used for being connected with the joint module are arranged on the spherical hinge convex block and the spherical hinge concave block;
the two sides of the restraint module are respectively provided with a connecting shaft block, the two end faces of the spherical hinge convex block and the spherical hinge concave block are respectively provided with a fixing hole, and the connecting shaft blocks are arranged at the fixing holes through rotating shaft bolts; the connecting shaft block is provided with a through hole, and the size of the through hole is larger than that of the rotating shaft bolt;
the upper ends and the lower ends of the spherical hinge convex blocks and the spherical hinge concave blocks are provided with lug plates.
9. The compression bar testing apparatus of claim 7, wherein: the joint module comprises a top plate, a force transmission plate and a bottom plate, wherein the force transmission plate is positioned between the top plate and the bottom plate, and a plurality of mounting holes are positioned on the top plate and the bottom plate; the dowel plate includes in dowel plate, lower dowel plate, riser and two dowel plates, go up the dowel plate with down the dowel plate is located the both ends of riser just form the I shape structure, two well dowel plate is located the both sides of riser, go up the dowel plate down the dowel plate riser and two well dowel plate becomes king's style of calligraphy structure.
10. The compression bar testing apparatus of claim 1, wherein: cushion blocks are arranged below two ends of the self-balancing counterforce frame and below the limiting beam; and the self-balancing reaction frame is anchored with the test site through an earth anchor bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679289.8U CN214622007U (en) | 2020-11-18 | 2020-11-18 | Compression bar test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022679289.8U CN214622007U (en) | 2020-11-18 | 2020-11-18 | Compression bar test device |
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| CN214622007U true CN214622007U (en) | 2021-11-05 |
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| CN202022679289.8U Active CN214622007U (en) | 2020-11-18 | 2020-11-18 | Compression bar test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112525666A (en) * | 2020-11-18 | 2021-03-19 | 同济大学 | Compression bar test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525666A (en) * | 2020-11-18 | 2021-03-19 | 同济大学 | Compression bar test device |
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