CN113758738B - Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method - Google Patents
Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method Download PDFInfo
- Publication number
- CN113758738B CN113758738B CN202111115631.4A CN202111115631A CN113758738B CN 113758738 B CN113758738 B CN 113758738B CN 202111115631 A CN202111115631 A CN 202111115631A CN 113758738 B CN113758738 B CN 113758738B
- Authority
- CN
- China
- Prior art keywords
- steel
- pair
- column
- loading
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000670 limiting effect Effects 0.000 title claims abstract description 56
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 214
- 239000010959 steel Substances 0.000 claims abstract description 214
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a self-moving limiting device for Liang Zhuzi structural collapse resistance test and a use method thereof, wherein the device comprises the following components: the loading steel frame comprises a pair of steel columns which are oppositely arranged, and the steel columns are connected through a reaction frame; the lower end surface of the reaction frame is provided with a loading unit; the middle column node limiting unit comprises a pair of first I-steel which are oppositely arranged, a gap for accommodating a steel column is formed between the pair of first I-steel, and the pair of first I-steel is connected through a second I-steel; a pair of first steel plates and a pair of first screw-thread steel bars which are arranged oppositely are arranged in a gap formed by the pair of first I-steel plates, and a closed positioning space is formed by the pair of first steel plates and the pair of first screw-thread steel bars; the first screw reinforcement sequentially passes through a pair of first steel plates. The invention can limit the middle column in the test, so as to avoid the large rotation of the middle column node in the deformation process of the test piece, and is suitable for limiting loading under any deformation condition.
Description
Technical Field
The invention belongs to the technical field of civil construction, and particularly relates to a self-moving limiting device for a Liang Zhuzi-structure collapse resistance test and a use method thereof.
Background
When a building is subjected to unexpected extreme loads, such as explosions, impacts, fires or encounters strong shock, localized damage (e.g., a missing column) is susceptible to extensive collapse or collapse of the overall structure disproportionate to the initial damage. Many students have studied the continuous collapse resistance of building structures through experiments, but have less research on the whole structure. Collapse tests for a substructure in a structure are currently a relatively large number of research methods.
In the prior art, the following technical problems exist in a static force experimental device for carrying out collapse resistance test on a beam column structure: 1) The center column node generates larger rotation in the deformation process, so that the load can not be transmitted to the lower structure due to overlarge torsion in the inner and outer directions of the column head plane; 2) The limiting effect is not good under the loading condition of large deformation; 3) The contact between the middle column node to be tested and the limiting device is not tight.
Disclosure of Invention
The invention aims to provide a self-moving limiting device for a Liang Zhuzi-structure collapse resistance test and a use method thereof, wherein a center column node limiting unit in the device clamps a test center column comprising a center column node in a positioning space surrounded by a pair of first steel plates and a pair of first threaded steel bars, and the center column node limiting unit synchronously move, so that the device can limit the center column node, thereby avoiding larger rotation of the center column node in the test piece deformation process, and being suitable for limiting loading under any deformation conditions. In order to achieve the above purpose, the invention adopts the following technical scheme:
self-moving limiting device for Liang Zhuzi structural collapse resistance test, comprising:
The loading steel frame comprises a pair of steel columns which are oppositely arranged, and the steel columns are connected through a reaction frame; the lower end face of the reaction frame is provided with a loading unit;
The middle column node limiting unit comprises a pair of first I-steel which are oppositely arranged, a gap for accommodating the steel column is formed between the pair of first I-steel, and the first I-steel can move along the steel column; the pair of first I-steel is connected through a second I-steel;
A pair of first steel plates and a pair of first screw-thread steel bars which are arranged oppositely are arranged in a gap formed by the pair of first I-steel plates, and a closed positioning space is formed by the pair of first steel plates and the pair of first screw-thread steel bars; a gap is formed between a pair of the first steel plates; the first deformed bar sequentially passes through a pair of first steel plates; one end of the first threaded steel bar passes through a gap formed by a pair of first I-steel bars and is connected with one first I-steel bar, and the other end of the first threaded steel bar passes through a gap formed by a pair of first I-steel bars and is connected with the other first I-steel bar.
Preferably, the plate surface of the first steel plate is parallel to the flange plate of the first i-steel.
Preferably, the first I-steel is arranged orthogonally to the second I-steel, and the second I-steel is arranged close to the end of the first I-steel.
Preferably, the method further comprises a second steel plate and a second screw; the second steel plate is arranged between the first I-steel and the second I-steel, the second steel plate is welded on the end face of the second I-steel, and the second deformed bar is arranged between the pair of first I-steel; the second deformed bar passes through the second steel plate.
Preferably, a first bearing is arranged between the first I-steel and the steel column, and rolling connection is formed between the first bearing and the steel column; the first bearing is arranged on a roller, the roller is fixed on a first bracket, and the first bracket is arranged on a flange plate of the first I-steel.
Preferably, the steel column further comprises a third deformed bar, the third deformed bar is arranged on a flange plate of the second I-steel, the third deformed bar extends towards the steel column, and rolling connection is formed between the tail end of the third deformed bar and a web plate of the steel column.
Preferably, the rolling connection comprises a second bearing mounted on a roller fixed to a second bracket fixed to the third rebar.
The application method of the self-moving limiting device for the Liang Zhuzi structure collapse resistance test comprises the following steps of:
(1) Placing the test center column in a positioning space surrounded by a pair of first steel plates and a pair of first screw-thread steel bars, and lifting the center column node limiting unit to the loading end height of the loading unit through a lifting device;
(2) Adjusting the interval between a pair of first steel plates according to the size of the center column, and fixing the first steel plates by nuts after contacting with a center column node of the test center column;
(3) Adding a center column supporting platform, supporting the outer supporting platform between a center column and the ground, fixing a center column node limiting unit on the outer wall of the center column, and then loosening a lifting device;
(4) Starting a loading unit, wherein the loading unit applies pressure to the upper end surface of the center column node; in the loading process, the experimental center pillar generates axial deformation, the center pillar node and the center pillar node limiting unit displace, the position of the loading end of the loading unit changes, and the loading end of the loading unit moves downwards along with the center pillar node limiting unit.
Compared with the prior art, the invention has the advantages that:
(1) The device locates the experimental center pillar card that contains center pillar node in the location space that a pair of first steel sheet and a pair of first twisted steel enclose, consequently this location space can carry out spacingly to the center pillar node, twists reverse in the center pillar plane and carries out effectual restraint to this avoids center pillar node to produce great rotation in test piece deformation process, and can effectively avoid because the column cap in-plane, outside direction twists reverse too big and cause the problem that the load can not be transmitted to the substructure. In addition, the center pillar is installed between two first steel plates, and the position of the first steel plates can be adjusted, so that the first steel plates of the center pillar node limiting unit are in close contact with the center pillar.
(2) The experimental center pillar comprising center pillar nodes is installed in the positioning space to realize connection between the center pillar nodes and the center pillar node limiting units. Therefore, the center column node can move along the steel column along with the center column node limiting unit in an up-and-down free mode, and can move synchronously with the center column node limiting unit, so that the displacement of the center column node is ensured to be kept in the vertical direction in the displacement loading process.
(3) The center pillar node limiting unit moves along with the center pillar node, is suitable for limiting loading under any deformation condition, and is more beneficial to limiting loading under large deformation condition compared with the conventional limiting device.
Drawings
FIG. 1 is a perspective view of a self-moving limiting device for testing the collapse resistance of Liang Zhuzi structures according to one embodiment of the present invention;
FIG. 2 is a perspective view of the center pillar node stop unit of FIG. 1;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a side view of the first i-steel of fig. 2.
The device comprises a 100-center column node limiting unit, 11-first I-steel, 12-second I-steel, 21-first steel plates, 22-second steel plates, 23-connecting steel plates, 200-test center columns, 30-steel columns, 31-supports, 40-reaction frames, 50-hydraulic servo actuators, 1-nuts, 2-first screw bars, 3-first bearings, 4-second screw bars and 5-third screw bars.
Detailed Description
The present invention will be described in more detail below with reference to the drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art can modify the invention described herein while still achieving the advantageous effects of the invention. Accordingly, the following description is to be construed as broadly known to those skilled in the art and not as limiting the invention.
As shown in fig. 1 to 4, a self-moving limiting device for testing collapse resistance of Liang Zhuzi structures comprises a loading steel frame and a center pillar node limiting unit 100.
The loading steel frame comprises a steel column 30, a steel column base, a reaction frame 40, a connecting steel plate 23 and a hydraulic servo actuator 50. Specifically, a pair of steel columns 30 are oppositely arranged, and the steel columns 30 are connected through a reaction frame 40; the lower end surface of the reaction frame 40 is provided with a loading unit such as a hydraulic servo actuator 50. The steel column 30 is, but not limited to, i-steel, and may take other cross-sectional forms, such as a box-shaped cross-section. The bottom of the steel column 30 is fixed on a table support 31, the size of the support is large and small, lateral support is added, and stability of the loading device is improved. The reaction frame 40 and the steel column 30 are fixed on flange plates at two sides of the steel column through two rows of nuts 1, and meanwhile, in order to increase the stability of the steel column, side supports can be added on steel column webs at the connecting positions. The connecting steel plate 23 is connected with the reaction frame 40 through the nut 1, and a hydraulic servo actuator is fixed on the connecting steel plate 23 in experiments to simulate the load transmitted by the upper structure, and the hydraulic servo actuator is used for carrying out static loading on a test piece to be tested.
The center pillar node limiting unit 100 includes a pair of first i-bars 11, a pair of second i-bars 12, two first steel plates 21, four second steel plates 22, a first bearing 3 (rolling bearing), a second bearing, a first screw reinforcement 2, a second screw reinforcement 4, and a third screw reinforcement 5. Specifically, a pair of first i-beams 11 are oppositely arranged, a gap for accommodating the steel column 30 is formed between the pair of first i-beams 11, and the first i-beams 11 can move along the steel column 30; the pair of first I-steel 11 is connected through a second I-steel 12; a pair of first steel plates 21 and a pair of first deformed bars 2 which are oppositely arranged are also arranged in a gap formed by the pair of first I-steel plates 11, and a closed positioning space is formed by the pair of first steel plates 21 and the pair of first deformed bars 2; a gap is formed between the pair of first steel plates 21, and a gap is formed between the pair of first screw bars 2; the first screw reinforcement 2 sequentially passes through a pair of first steel plates 21; one end of the first screw reinforcement 2 passes through a gap formed by a pair of first I-bars 11 and is connected with one of the first I-bars 11, and the other end passes through a gap formed by a pair of first I-bars 11 and is connected with the other first I-bar 11. The second steel plate 22 is arranged between the first I-steel 11 and the second I-steel 12, the second steel plate 22 is welded on the end face of the second I-steel 12, and the second deformed bar 4 is arranged between the pair of first I-steels 11; the second screw reinforcement 4 passes through the second steel plate 22.
In the present embodiment, the central axes of the first i-steel 11, the second i-steel 12, the first steel plate 21, and the second steel plate 22 are arranged on the same plane. The first I-steel 11 and the second I-steel 12 are orthogonally arranged, and the second I-steel 12 is arranged close to the end of the first I-steel 11.
Four second steel plates 22 are arranged at the joint of the first I-steel 11 and the second I-steel 12, the end faces of the second steel plates 22 and the second I-steel 12 are fixed through welding, and the second steel plates 22 and the first I-steel 11 are fixed with the nuts 1 through second thread steel bars 4. Specifically, the second deformed bar 4 is disposed at four corners of the second steel plate 22, and penetrates through two flange plates of one first i-steel 11, one second steel plate 22, the other second steel plate 22, and two flange plates of the other first i-steel 11 in sequence, and is fixed in position by the nuts 1.
The two first steel plates 21 are parallel to the flange plate of the first I-steel 11, are arranged in the inner center side by side at intervals to form a well, and the first steel plates 21 and the first I-steel 11 are fixed with the nut 1 through the first deformed bar 2. The first deformed bar 2 is arranged at four corners of the first steel plate 21, penetrates through two flange plates of one first I-steel 11, one first steel plate 21, the other first steel plate 21 and two flange plates of the other first I-steel 11 in sequence, and is fixed at the positions through nuts. The spacing between the two first steel plates 21 can be adjusted according to the size of the column to be tested. The concrete method is that the steel plate can move in the direction of the first screw-thread steel bar, the position of the steel plate is determined according to the size of the middle column to be tested, the tight contact between the steel plate and a component is ensured, and the nut is screwed down for fixation.
A first bearing 3 is arranged between the first I-steel 11 and the steel column 30, and rolling connection is formed between the first bearing 3 and the steel column 30; the first bearing 3 is mounted on a roller fixed to a first bracket mounted on the flange plate of the first i-beam 11. Specifically, an upper row of first bearings 3 and a lower row of first bearings 3 are respectively arranged on the inner sides of the end parts of the two groups of first I-steel 11, and are fixedly connected to the inner side flange plates of the first I-steel 11 through nuts 1. The rolling curved surface of the bearing contacts the flange plate of the steel column and can roll freely along the plate surface.
In this embodiment, a third deformed bar 5 is further disposed, the third deformed bar 5 is disposed on the flange plate of the second i-beam 12, the third deformed bar 5 extends toward the steel column 30, and a rolling connection is formed between the end of the third deformed bar 5 and the web of the steel column 30. The rolling connection comprises a second bearing mounted on a roller fixed to a second bracket fixed to a third rebar 5. Namely, two third deformed bars 5 are arranged on the flange plate in the longitudinal center of the second I-steel 12 and are connected with the web plate of the vertical steel column 30, the third deformed bars 5 are fixed with the second I-steel 12 through nuts 1, and a second bearing is arranged at the joint of the third deformed bars 5 and the steel column 30. The second bearing rolling surface contacts the web of the steel column 30 and is free to roll along the deck.
As shown in fig. 4, the centers of the upper row of screw bars and nuts 1 connected to the first i-beam 11 are on the same line, the centers of the lower row of screw bars and nuts 1 are also on the same line, and the centers of the two rows of screw bars and nuts 1 at the same position are in the vertical direction.
Therefore, in the experimental process, the center column node limiting unit 100 and the center column node can move up and down in the vertical direction as a whole, and can be kept in a horizontal plane without rotating, so that the displacement of the center column is kept in the vertical direction in the displacement loading process.
The center column 200 to be tested is arranged in a positioning space formed by the two first steel plates 21, and torsion inside and outside a center column plane is effectively restrained by a groined steel frame formed by the first steel plates 21 and the first screw steel bars 2, so that the center column node is prevented from generating larger rotation in the deformation process of a test piece, and the load can be smoothly transmitted to a lower structure.
The self-moving limiting device for the collapse resistance test research of the Liang Zhuzi structure is suitable for limiting loading under any deformation condition, and is more beneficial to limiting loading under large deformation condition compared with the conventional limiting device.
This Liang Zhuzi structural collapse resistance test is with from mobile stop device's theory of operation:
(1) When in an initial position, the center pillar node limiting unit 100 is located at the bottom end of the steel pillar 30, the test center pillar comprising the center pillar node is placed in a positioning space surrounded by a pair of first steel plates 21 and a pair of upper and lower first screw steel bars 2, and the center pillar node limiting unit 100 is lifted to the height of the head (loading end) of the hydraulic servo actuator 50 through a lifting device such as an electric hoist.
(2) The interval between the pair of first steel plates 21 is adjusted according to the size of the center pillar, and is fixed by nuts after being brought into close contact with the center pillar joint of the test center pillar 200.
(3) And a center column supporting platform is added, the center column supporting platform is propped between the center column and the ground, and the center main node limiting unit 100 is fixed on the outer wall of the center column 200, so that the weight of the center column node limiting unit 100 is ensured to be completely born by the center column supporting platform. After which the lifting device is released.
(4) When static loading is performed:
The hydraulic servo actuator 50 is activated, and the hydraulic servo actuator 50 applies pressure to the upper end face of the center pillar joint while the entire center pillar joint limit unit 100 is kept stationary.
In the loading process, the test center column is deformed, the positions of the test center column 200 and the center column node limiting unit 100 are changed, the position of the loading end of the hydraulic servo actuator 50 is changed, and the loading end (column head) of the hydraulic servo actuator 50 moves downwards along with the center column node limiting unit 100. In the test process, the actual bearing pressure of the center column is the sum of the loading pressure of the hydraulic servo actuator 50 and the gravity of the center column node limiting unit 100, and the initial deformation of the center column generated by the gravity of the center column node limiting unit 100 is extremely small and negligible.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art will make any equivalent substitution or modification to the technical solution and technical content disclosed in the invention without departing from the scope of the technical solution of the invention, and the technical solution of the invention is not departing from the scope of the invention.
Claims (5)
1. Self-moving limiting device for Liang Zhuzi structural collapse resistance test, which is characterized by comprising:
The loading steel frame comprises a pair of steel columns which are oppositely arranged, and the steel columns are connected through a reaction frame; the lower end face of the reaction frame is provided with a loading unit;
The middle column node limiting unit comprises a pair of first I-steel which are oppositely arranged, a gap for accommodating the steel column is formed between the pair of first I-steel, and the first I-steel can move along the steel column; the pair of first I-steel is connected through a second I-steel;
A pair of first steel plates and a pair of first screw-thread steel bars which are arranged oppositely are arranged in a gap formed by the pair of first I-steel plates, and a closed positioning space is formed by the pair of first steel plates and the pair of first screw-thread steel bars; a gap is formed between the pair of first steel plates and the first I-steel; the first deformed bar sequentially passes through a pair of first steel plates; the first threaded steel bar passes through a gap formed by a pair of first I-steel bars, one end of the first threaded steel bar is connected with one of the first I-steel bars, and the other end of the first threaded steel bar is connected with the other first I-steel bar;
A first bearing is arranged between the first I-steel and the steel column, and rolling connection is formed between the first bearing and the steel column; the first bearing is arranged on a roller, the roller is fixed on a first bracket, and the first bracket is arranged on a flange plate of the first I-steel;
the steel column is characterized by further comprising a third deformed bar, wherein the third deformed bar is arranged on a flange plate of the second I-steel, the third deformed bar extends towards the steel column, and the tail end of the third deformed bar is in rolling connection with a web plate of the steel column;
the rolling connection comprises a second bearing, the second bearing is arranged on a rolling shaft, the rolling shaft is fixed on a second bracket, and the second bracket is fixed on the third screw-thread steel bar.
2. The self-moving limiting device for Liang Zhuzi structural collapse resistance test according to claim 1, wherein the plate surface of the first steel plate is parallel to the flange plate of the first i-beam.
3. The self-moving limiting device for Liang Zhuzi structural collapse resistance test according to claim 1, wherein the first i-beam is arranged orthogonal to the second i-beam, the second i-beam being disposed adjacent to an end of the first i-beam.
4. The self-moving limiting device for Liang Zhuzi structural collapse resistance test according to claim 1, further comprising a second steel plate and a second rebar; the second steel plate is arranged between the first I-steel and the second I-steel, the second steel plate is welded on the end face of the second I-steel, and the second deformed bar is arranged between the pair of first I-steel; the second deformed bar passes through the second steel plate.
5. The use method of the self-moving limiting device for the Liang Zhuzi-structure collapse resistance test is based on the Liang Zhuzi-structure collapse resistance test according to any one of claims 1 to 4, and is characterized by comprising the following steps:
(1) Placing the test center column in a positioning space surrounded by a pair of first steel plates and a pair of first screw-thread steel bars, and lifting the center column node limiting unit to the loading end height of the loading unit through a lifting device;
(2) Adjusting the interval between a pair of first steel plates according to the size of the center column, and fixing the first steel plates by nuts after contacting with the center column nodes;
(3) Adding a center column supporting platform, wherein the center column supporting platform is propped between a center column and the ground, a center column node limiting unit is fixed on the outer wall of the center column, and then a lifting device is loosened;
(4) Starting a loading unit, wherein the loading unit applies pressure to the upper end surface of the center column node; in the loading process, the experimental center pillar generates axial deformation, the center pillar node and the center pillar node limiting unit displace, the position of the loading end of the loading unit changes, and the loading end of the loading unit moves downwards along with the center pillar node limiting unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115631.4A CN113758738B (en) | 2021-09-23 | 2021-09-23 | Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111115631.4A CN113758738B (en) | 2021-09-23 | 2021-09-23 | Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113758738A CN113758738A (en) | 2021-12-07 |
| CN113758738B true CN113758738B (en) | 2024-05-14 |
Family
ID=78797048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111115631.4A Active CN113758738B (en) | 2021-09-23 | 2021-09-23 | Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113758738B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175707A (en) * | 2013-03-25 | 2013-06-26 | 同济大学 | Testing apparatus suitable for substructure robustness of beam-column joints of planar frames |
| CN106525471A (en) * | 2016-10-12 | 2017-03-22 | 北京工业大学 | Apparatus for continuous collapse dynamic test of steel frame |
| JP2017096041A (en) * | 2015-11-27 | 2017-06-01 | 孝三 水谷 | Complete collapse preventive member of existing wooden framework structure in earthquake time |
| CN207540878U (en) * | 2017-12-06 | 2018-06-26 | 哈尔滨工业大学 | A kind of two-dimensional framework Approaches for Progressive Collapse of Structures experiment loading and anti-lateral displacement device |
| JP2019113506A (en) * | 2017-12-26 | 2019-07-11 | 戸田建設株式会社 | Estimation method of structure characteristic period, determination method of structure earthquake resistance, estimation system of structure characteristic period, and determination system of structure earthquake resistance |
| CN110108508A (en) * | 2019-04-22 | 2019-08-09 | 东南大学 | A kind of two-way anti-rotation lock of beam column minor structure continuous collapse test |
| CN111579266A (en) * | 2020-05-22 | 2020-08-25 | 西安建筑科技大学 | Static test device for researching collapse resistance of three-layer plane frame beam column structure |
| CN111579265A (en) * | 2020-05-22 | 2020-08-25 | 西安建筑科技大学 | Static test device for researching collapse resistance of space steel frame composite beam column structure |
| CN216645876U (en) * | 2021-09-23 | 2022-05-31 | 东南大学 | Self-moving limiting device for collapse resistance test of beam-column structure |
-
2021
- 2021-09-23 CN CN202111115631.4A patent/CN113758738B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103175707A (en) * | 2013-03-25 | 2013-06-26 | 同济大学 | Testing apparatus suitable for substructure robustness of beam-column joints of planar frames |
| JP2017096041A (en) * | 2015-11-27 | 2017-06-01 | 孝三 水谷 | Complete collapse preventive member of existing wooden framework structure in earthquake time |
| CN106525471A (en) * | 2016-10-12 | 2017-03-22 | 北京工业大学 | Apparatus for continuous collapse dynamic test of steel frame |
| CN207540878U (en) * | 2017-12-06 | 2018-06-26 | 哈尔滨工业大学 | A kind of two-dimensional framework Approaches for Progressive Collapse of Structures experiment loading and anti-lateral displacement device |
| JP2019113506A (en) * | 2017-12-26 | 2019-07-11 | 戸田建設株式会社 | Estimation method of structure characteristic period, determination method of structure earthquake resistance, estimation system of structure characteristic period, and determination system of structure earthquake resistance |
| CN110108508A (en) * | 2019-04-22 | 2019-08-09 | 东南大学 | A kind of two-way anti-rotation lock of beam column minor structure continuous collapse test |
| CN111579266A (en) * | 2020-05-22 | 2020-08-25 | 西安建筑科技大学 | Static test device for researching collapse resistance of three-layer plane frame beam column structure |
| CN111579265A (en) * | 2020-05-22 | 2020-08-25 | 西安建筑科技大学 | Static test device for researching collapse resistance of space steel frame composite beam column structure |
| CN216645876U (en) * | 2021-09-23 | 2022-05-31 | 东南大学 | Self-moving limiting device for collapse resistance test of beam-column structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113758738A (en) | 2021-12-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Nie et al. | Seismic behavior of connections composed of CFSSTCs and steel–concrete composite beams—experimental study | |
| JP3845804B2 (en) | Stress reduction connection of steel frame | |
| CN107167378B (en) | Axial tension test device and test method thereof | |
| CN108951908B (en) | Frame shear wall structure with swing energy dissipation column | |
| CN101408474A (en) | Novel test device applicable to space frame beam column node | |
| CN103207121A (en) | Constant-axial-force self-balanced loading device for different column section joints | |
| CN110108508B (en) | Bidirectional anti-torsion device for beam-column structure continuous collapse test | |
| CN105756214A (en) | Horizontal and vertical multi-dimensional vibration isolation and energy consumption system of prefabricated assembling type cantilever framework | |
| CN102840955B (en) | Multi-dimensional multi-mode ground shock test device of building curtain wall | |
| CN205317460U (en) | Prevent test device of frame liangping off -plate unstability under big deformation test condition | |
| CN216645876U (en) | Self-moving limiting device for collapse resistance test of beam-column structure | |
| CN211602680U (en) | Universal loading device for low-cycle repeated load test | |
| CN109811640B (en) | Two-stage buffering, limiting and shock isolating device | |
| CN113758738B (en) | Self-moving limiting device for Liang Zhuzi-structure collapse resistance test and use method | |
| CN208688767U (en) | Overcome the shake table expanding unit of scaled model gravity distorion effect | |
| CN105297954B (en) | Steel framed building wall and its construction method with damping node | |
| CN110320096B (en) | Loading device suitable for plate column structure-corner column node punching resistance test | |
| CN111058490B (en) | Building with base shock-absorbing structure | |
| CN112985993A (en) | Wall horizontal loading test device and use method thereof | |
| CN211740588U (en) | Anti-seismic support test device | |
| CN202770614U (en) | Building curtain wall multidimensional multi-mode earthquake oscillation test device | |
| CN210857987U (en) | End post template fixing device | |
| CN114703739B (en) | Shock isolation device for preventing fault from damaging bridge tower | |
| CN214668208U (en) | Wall horizontal loading test device | |
| CN109708976A (en) | A kind of wall component lateral support device and reversed loading device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |