CN115753344A - Loading device for axial load of column structure under action of explosive impact - Google Patents
Loading device for axial load of column structure under action of explosive impact Download PDFInfo
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- CN115753344A CN115753344A CN202211522839.2A CN202211522839A CN115753344A CN 115753344 A CN115753344 A CN 115753344A CN 202211522839 A CN202211522839 A CN 202211522839A CN 115753344 A CN115753344 A CN 115753344A
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- 239000002360 explosive Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 238000004880 explosion Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 3
- 239000004567 concrete Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000011150 reinforced concrete Substances 0.000 abstract description 31
- 238000012360 testing method Methods 0.000 abstract description 5
- 238000011160 research Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011372 high-strength concrete Substances 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
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Abstract
The invention discloses a loading device for axial load of a column structure under the action of explosive impact, which comprises a base, a steel structure frame, a tension anchor rod and a hydraulic axial loading device, wherein the base is provided with a plurality of steel structure frames; each side of the base is provided with a first T-shaped groove perpendicular to the side line of the base; the steel structure frame and the tension anchor rod are arranged on two sides of the base, the steel structure frame and the tension anchor rod are provided with reaction frames, one surface of each reaction frame, facing the base, is provided with a second T-shaped groove identical to the first T-shaped groove, and the first T-shaped groove and the second T-shaped groove are both internally provided with hydraulic limiting devices; the hydraulic axial loading device is arranged on the reaction frame. By arranging the reaction frame, the hydraulic limiting device and the hydraulic axial loading device, the loading device can effectively restrict the freedom degrees of two ends of the reinforced concrete column while applying axial load, can apply axial load to the reinforced concrete column under the conditions of explosion and impact load tests, and ensures the stability of the reinforced concrete column.
Description
Technical Field
The invention relates to the technical field of explosion and engineering protection, in particular to a loading device for axial load of a column structure under the action of explosion impact.
Background
The reinforced concrete column is commonly used in bearing structures in engineering application, such as high-rise buildings, underground garages or subways, large river-crossing bridges and the like, and the anti-explosion and anti-impact test research of the reinforced concrete column is an important means for checking the safety level of the structure, and can provide technical reference for the research on engineering application safety and use durability. The reinforced concrete column mainly relies on axial resistance to compression to realize the bearing effect, and the not bearing is different with the reinforced concrete column antiknock performance who bears the axial compression, consequently in carrying out the explosion test research process, it is indispensable to apply axial load to reinforced concrete column.
In addition, the cross-sectional shapes of the columns are different, and a circular cross section, a rectangular cross section and the like are commonly used, so that during the test, even if a load is applied to the axial direction, the reinforced concrete column inevitably generates lateral movement or rotation after bearing an explosive load acting on the radial direction, and therefore, the degree of freedom of two ends of the reinforced concrete column is restrained while the axial load is applied.
Disclosure of Invention
In order to solve the problems, the invention provides a loading device which can effectively restrict the freedom degrees of two ends of a reinforced concrete column while applying axial load aiming at the design deficiency of an axial loading device of the reinforced concrete column, can apply axial load to the reinforced concrete column under the conditions of explosion and impact load tests, and ensures the stability of the reinforced concrete column.
The invention provides a loading device for axial load of a column structure under the action of explosive impact, which is characterized in that: the method comprises the following steps: the device comprises a base, a steel structure frame, a tension anchor rod and a hydraulic axial loading device; each side of the base is provided with a first T-shaped groove perpendicular to the side line of the base; the steel structure frame and the tension anchor rod are arranged on two sides of the base, the steel structure frame and the tension anchor rod are provided with reaction frames, the center of each reaction frame is provided with a through hole, one surface of each reaction frame, facing the base, is provided with a second T-shaped groove identical to the first T-shaped groove, hydraulic limiting devices are arranged in the first T-shaped groove and the second T-shaped groove, and the hydraulic limiting devices can slide in the first T-shaped groove and the second T-shaped groove; the hydraulic axial loading device is characterized in that a boss is arranged at the top of the hydraulic axial loading device, a hydraulic rod is arranged at the bottom of the hydraulic axial loading device, and the hydraulic rod penetrates through the through hole and is arranged on the reaction frame through the boss.
Furthermore, a through groove which is matched with the shape of the steel structure frame is formed in the position, corresponding to the steel structure frame, of the reaction frame.
Furthermore, a plurality of positioning holes are formed in the steel structure frame, and the reaction frame is fixedly arranged through the positioning shafts.
Furthermore, a fixing hole is formed in the position, corresponding to the tension anchor rod, of the reaction frame, and the tension anchor rod penetrates through the fixing hole and is connected with the reaction frame through a bolt.
Furthermore, the base is made of concrete.
Further, a steel plate is wrapped outside the base.
Furthermore, the device also comprises a rectangular steel sleeve externally tangent to the circle, and the rectangular steel sleeve is arranged at a clamping position at the center of the hydraulic limiting device.
The invention has the following beneficial effects: by arranging the reaction frame, the hydraulic limiting device and the hydraulic axial loading device, the loading device can effectively restrict the freedom degrees of two ends of the reinforced concrete column while applying axial load, can apply axial load to the reinforced concrete column under the conditions of explosion and impact load tests, and ensures the stability of the reinforced concrete column.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention.
FIG. 3 is a schematic diagram of the rectangular cross-section post spacing of the present invention.
FIG. 4 is a schematic diagram of the circular cross-section post position limitation of the present invention.
Fig. 5 is a partial schematic view of the hydraulic stop device of the present invention.
In the figure: 1. a base; 2. a steel structural frame; 3. a reaction frame; 4. a hydraulic limiting device; 5. a hydraulic axial loading device; 6. a tension anchor rod; 7. and (5) positioning the shaft.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the present embodiment is a loading device for axial loading of a column structure under the action of explosive impact, comprising: the device comprises a base 1, a steel structure frame 2, a reaction frame 3, a hydraulic limiting device 4, a hydraulic axial loading device 5, a tension anchor rod 6 and a positioning shaft 7.
The base 1 is formed by pouring high-strength concrete, the rigidity of the base is enhanced by wrapping steel plates, each side of the base is provided with a first T-shaped groove perpendicular to the side line of the base and used for fixing a hydraulic limiting device 4, and the hydraulic limiting devices 4 realize limiting of the bottoms of reinforced concrete columns with different section sizes by sliding on the first T-shaped grooves.
And steel structure frames 2 and tension anchor rods 6 are arranged on two sides of the base 1.
The steel structure frame 2 is used for supporting the reaction frame 3, a plurality of positioning holes are formed in the reaction frame 3, the reaction frame 3 is fixed on the base through the positioning shafts 7 through the positioning holes, and the height of the steel structure frame 2 can be properly adjusted according to the height of the reinforced concrete column.
One surface of the reaction frame 3 facing the base 1 is provided with a second T-shaped groove which is the same as the first T-shaped groove and used for fixing a hydraulic limiting device 4, and the hydraulic limiting device 4 can limit the tops of the reinforced concrete columns with different section sizes by sliding on the second T-shaped groove. A circular through hole is formed in the center of the reaction frame 3, a boss is arranged at the top of the hydraulic axial loading device 5, a hydraulic rod is arranged at the bottom of the hydraulic axial loading device, penetrates through the through hole and is arranged on the reaction frame through the boss to apply axial load to the reinforced concrete column. A through groove which is matched with the steel structure frame 2 in shape is formed in the position, corresponding to the steel structure frame 2, of the reaction frame 3, the through groove is used for realizing the up-and-down movement of the reaction frame 3 on the steel structure frame 2, and the reaction frame 3 is positioned on the steel structure frame 2 through a positioning shaft 7; two through holes are arranged at the corners for passing through the tension anchor rod 6.
The hydraulic limiting device 4 is fixed on the first T-shaped groove and the second T-shaped groove of the base 1 and the reaction frame 3 and used for limiting the bottom and the top of the reinforced concrete column and preventing the reinforced concrete column from moving or rotating under the action of explosive load, as shown in fig. 5. Through increasing the loaded pressure of hydraulic pressure stop device 4, can realize the fixed rigidity of reinforced concrete column under different blast loads.
The hydraulic axial loading device 5 is fixed on the reaction frame 3 and used for applying axial load to the top section of the reinforced concrete column, the applied load depends on the loading capacity of the hydraulic axial loading device 5, and the applied load limit depends on the tensile strength of the tension anchor rod 6.
The tension anchor 6 is tensioned with the base 1 through a pair of through holes and bolts on the reaction frame 3, preventing the reaction frame 3 from being pushed out upwards during loading.
Because the hydraulic limiting device 4 is fixed in four directions, the horizontal movement of the reinforced concrete column can be completely limited. Thus, in addition to rectangular section columns, axial loads can be applied to circular section reinforced concrete columns. When the reinforced concrete column with the circular section is fixed, a rectangular steel sleeve externally tangent to a circle is additionally arranged on the column at the clamping position as shown in figure 4, so that the fixed support of the supporting end can be better simulated.
The hydraulic limiting device 4 can also adjust the size of pressurization to fix different rigidity of the reinforced concrete column; and the number of the hydraulic limiting devices 4 can be properly adjusted to realize simple support, fixed support, hinged support or flexible support of the reinforced concrete column.
The height of the steel structure frame 2 is not limited to that shown in fig. 1, and the steel structure frame can be heightened to realize axial loading on a larger-size reinforced concrete column under the condition of ensuring the rigidity and the strength.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a loading device of column construction axial load under explosion impact action which characterized in that: the method comprises the following steps: the device comprises a base, a steel structure frame, a tension anchor rod and a hydraulic axial loading device; each side of the base is provided with a first T-shaped groove perpendicular to the side line of the base; the steel structure frame and the tension anchor rod are arranged on two sides of the base, the steel structure frame and the tension anchor rod are provided with a reaction frame, the center of the reaction frame is provided with a through hole, one surface of the reaction frame, facing the base, is provided with a second T-shaped groove which is the same as the first T-shaped groove, the first T-shaped groove and the second T-shaped groove are respectively internally provided with a hydraulic limiting device, and the hydraulic limiting devices can slide in the first T-shaped groove and the second T-shaped groove; the hydraulic axial loading device is characterized in that a boss is arranged at the top of the hydraulic axial loading device, a hydraulic rod is arranged at the bottom of the hydraulic axial loading device, and the hydraulic rod penetrates through the through hole and is arranged on the reaction frame through the boss.
2. The device for loading axial load of column structure under explosive impact according to claim 1, wherein: and the position of the reaction frame corresponding to the steel structure frame is provided with a through groove matched with the shape of the steel structure frame.
3. The device for loading axial load of column structure under explosive impact according to claim 2, wherein: a plurality of positioning holes are formed in the steel structure frame, and the reaction frame is fixedly arranged through the positioning shafts.
4. The loading device for axial load of column structure under the action of explosive impact according to claim 1, characterized in that: the reaction frame is provided with a fixing hole corresponding to the position of the tension anchor rod, and the tension anchor rod penetrates through the fixing hole and is connected with the reaction frame through a bolt.
5. The loading device for axial load of column structure under the action of explosive impact according to claim 1, characterized in that: the base is made of concrete.
6. The loading device for axial load of column structure under the action of explosive impact according to claim 1, characterized in that: the base is wrapped with a steel plate.
7. The loading device for axial load of column structure under the action of explosive impact according to claim 1, characterized in that: the device also comprises a rectangular steel sleeve externally tangent to the circle, and a clamping part arranged at the center of the hydraulic limiting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522839.2A CN115753344A (en) | 2022-11-30 | 2022-11-30 | Loading device for axial load of column structure under action of explosive impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522839.2A CN115753344A (en) | 2022-11-30 | 2022-11-30 | Loading device for axial load of column structure under action of explosive impact |
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| Publication Number | Publication Date |
|---|---|
| CN115753344A true CN115753344A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211522839.2A Pending CN115753344A (en) | 2022-11-30 | 2022-11-30 | Loading device for axial load of column structure under action of explosive impact |
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| CN (1) | CN115753344A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314882Y (en) * | 2008-12-16 | 2009-09-23 | 江苏省第一建筑安装有限公司 | Pressure-bearing testing device for eccentric compression reinforced concrete columns |
| CN102374950A (en) * | 2011-11-16 | 2012-03-14 | 浙江建设职业技术学院 | Test device for service performance of reinforced column under load and environment coupled action |
| CN107255587A (en) * | 2017-07-28 | 2017-10-17 | 中南大学 | A kind of creep ageing two-direction pull press experimental rig |
| CN107782606A (en) * | 2017-10-30 | 2018-03-09 | 华侨大学 | A kind of experimental rig and its application method of the local buckling behavior of double steel plate combined concrete shear wall steel plate |
| CN110320096A (en) * | 2019-06-28 | 2019-10-11 | 华南理工大学 | A kind of loading device tested suitable for plate-column structure-corner post node Punching Shear |
| CN110361254A (en) * | 2019-08-27 | 2019-10-22 | 内蒙古工业大学 | A kind of corrosive environment cyclic reverse loading coupling device |
| CN111085735A (en) * | 2019-12-12 | 2020-05-01 | 江苏盛安资源股份有限公司 | Processing device for non-involute variable thickness gear |
| CN212227929U (en) * | 2020-08-03 | 2020-12-25 | 浙江工业大学 | Pole axiality measuring device |
| CN215862635U (en) * | 2021-09-13 | 2022-02-18 | 安徽皖华环保设备科技有限公司 | Supporting and clamping mechanism for air environment detection equipment |
| CN217086300U (en) * | 2022-01-26 | 2022-07-29 | 河南省德立泰高压电瓷电器有限公司 | Mutual inductor porcelain bushing installation device |
| CN217665945U (en) * | 2022-07-29 | 2022-10-28 | 宜都市五捷机械制造有限公司 | A cut edge integral type anchor clamps that punch a hole for pull rod |
| CN217759286U (en) * | 2022-07-29 | 2022-11-08 | 贵州大学 | Full-assembly cross buckling-free energy dissipation supporting component |
-
2022
- 2022-11-30 CN CN202211522839.2A patent/CN115753344A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314882Y (en) * | 2008-12-16 | 2009-09-23 | 江苏省第一建筑安装有限公司 | Pressure-bearing testing device for eccentric compression reinforced concrete columns |
| CN102374950A (en) * | 2011-11-16 | 2012-03-14 | 浙江建设职业技术学院 | Test device for service performance of reinforced column under load and environment coupled action |
| CN107255587A (en) * | 2017-07-28 | 2017-10-17 | 中南大学 | A kind of creep ageing two-direction pull press experimental rig |
| CN107782606A (en) * | 2017-10-30 | 2018-03-09 | 华侨大学 | A kind of experimental rig and its application method of the local buckling behavior of double steel plate combined concrete shear wall steel plate |
| CN110320096A (en) * | 2019-06-28 | 2019-10-11 | 华南理工大学 | A kind of loading device tested suitable for plate-column structure-corner post node Punching Shear |
| CN110361254A (en) * | 2019-08-27 | 2019-10-22 | 内蒙古工业大学 | A kind of corrosive environment cyclic reverse loading coupling device |
| CN111085735A (en) * | 2019-12-12 | 2020-05-01 | 江苏盛安资源股份有限公司 | Processing device for non-involute variable thickness gear |
| CN212227929U (en) * | 2020-08-03 | 2020-12-25 | 浙江工业大学 | Pole axiality measuring device |
| CN215862635U (en) * | 2021-09-13 | 2022-02-18 | 安徽皖华环保设备科技有限公司 | Supporting and clamping mechanism for air environment detection equipment |
| CN217086300U (en) * | 2022-01-26 | 2022-07-29 | 河南省德立泰高压电瓷电器有限公司 | Mutual inductor porcelain bushing installation device |
| CN217665945U (en) * | 2022-07-29 | 2022-10-28 | 宜都市五捷机械制造有限公司 | A cut edge integral type anchor clamps that punch a hole for pull rod |
| CN217759286U (en) * | 2022-07-29 | 2022-11-08 | 贵州大学 | Full-assembly cross buckling-free energy dissipation supporting component |
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