CN113740172A - Steel constructs combination column loading test device - Google Patents
Steel constructs combination column loading test device Download PDFInfo
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- CN113740172A CN113740172A CN202111071227.1A CN202111071227A CN113740172A CN 113740172 A CN113740172 A CN 113740172A CN 202111071227 A CN202111071227 A CN 202111071227A CN 113740172 A CN113740172 A CN 113740172A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 142
- 239000010959 steel Substances 0.000 title claims abstract description 142
- 238000012360 testing method Methods 0.000 title claims abstract description 84
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 238000002513 implantation Methods 0.000 claims description 2
- 239000002023 wood Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The invention discloses a steel structure combination column loading test device, which belongs to the technical field of constructional engineering tests, and aims to solve the technical problem of how to perform loading tests on steel structure combination columns with huge structures and meet the requirements of component tests, wherein the technical scheme is as follows: the structure of the device comprises a foundation base, wherein four test frames which are arranged in a square shape at intervals are arranged on the foundation base, a loading system is arranged at the central position of a gap formed by the four test frames, the lower side surface of the loading system is positioned on the foundation base, a loading support is arranged on the upper side surface of the central position of the loading system, a displacement detection equipment frame is arranged on the lower side surface of the edge position of the loading support, and one end, far away from the loading support, of the displacement detection equipment frame is arranged on the test frame; a reaction frame is arranged above the loading system and is used for fixedly connecting the four test frames, and the reaction frame is positioned at the upper end of the test frame; the top of the test stand is provided with a three-dimensional protection stand which is positioned above the reaction stand.
Description
Technical Field
The invention relates to the technical field of constructional engineering tests, in particular to a steel structure combination column loading test device.
Background
The steel structure is the structure of constituteing by steel material, is one of main building structure type, and the steel structure has characteristics such as dead weight is light, construction is fast, span is big, and the wide application is in the factory building construction, but the steel structure receives the conflagration influence great, and high temperature can lead to the steel structure to warp, and the steel structure warp can lead to the atress inhomogeneous, very easily takes place the accident of collapsing.
Currently, most of the building series component tests employ electro-hydraulic servo test system (MTS) test equipment, which cannot be used for testing tall steel composite columns.
Therefore, how to carry out a loading test on a steel-structure combined column with a huge structure and meet the test requirements of the components is a technical problem to be solved urgently at present.
Disclosure of Invention
The invention aims to provide a steel structure combination column loading test device, which solves the problem of how to carry out loading test on a steel structure combination column with a huge structure and meet the test requirement of a component.
The technical task of the invention is realized in the following way, the steel structure combination column loading test device comprises a foundation base, wherein four test frames which are arranged at intervals in a square shape are arranged on the foundation base, a loading system is arranged at the central position of a gap formed by the four test frames, the lower side surface of the loading system is positioned on the foundation base, a loading support is arranged on the upper side surface of the central position of the loading system, a displacement detection equipment frame is arranged on the lower side surface of the edge position of the loading support, and one end, far away from the loading support, of the displacement detection equipment frame is arranged on the test frame;
a reaction frame is arranged above the loading system and is used for fixedly connecting the four test frames, and the reaction frame is positioned at the upper end of the test frame;
the top of the test stand is provided with a three-dimensional protection stand which is positioned above the reaction stand.
Preferably, the foundation base is a square structure formed by pouring C20 grade concrete;
the length, width and height of the base seat are 8000mm, 8000mm and 1500mm respectively;
the base seat's of the experimental frame implantation degree of depth is 1200mm, and the upper surface that sets up the base seat of experimental frame department is higher than the 200mm that sets up to the base seat upper surface of terrace and foundation ditch department.
Preferably, the test rack adopts a combined steel frame, the combined steel frame is a square frame body consisting of a plurality of sections of frames, each section of frame is a square structure consisting of vertically arranged upright posts and horizontal rods, a right-angle corner protection plate is arranged on the outer side of a right angle consisting of the upright posts and the horizontal rods, and the outer sides of two right-angle surfaces of the right-angle corner protection plate are respectively provided with a connecting pipe; inclined rods are arranged at two opposite corners of the section frame; a steel ladder stand is arranged in the middle of the section frame.
Preferably, the combined steel frame is a cube structure formed by welding angle steels of various specifications made of Q235, the height of the test frame is 25000mm, the test frame is divided into 10 sections, and the length, width and height of each section of frame are 4000mm, 4000mm and 2500mm respectively;
the joint frame is formed by connecting 16 upright posts, 48 horizontal rods, 32 inclined rods, 32 connecting pipes and 32M 28 bolts; the length of the M28 bolt is 300 mm; the upright posts are made of 150 mm-150 mm angle steel, and the length of the angle steel is 2500; the horizontal rods adopt angle steel with the length of 1500mm, wherein the angle steel is 50mm by 50 mm; the diagonal rods adopt angle steel of 50mm x 50mm, and the length of the angle steel is 1500 mm; the connecting pipe is a steel pipe with the diameter of 40mm, the wall thickness of 5mm and the length of 100 mm.
Preferably, the reaction frame is in a groined shape, the groined-shaped reaction frame comprises two long beams which are arranged in parallel, two short beams are arranged between the two long beams, a circular pressure-bearing steel plate is arranged at one side of the middle position of each short beam, and an upper horizontal limiting pin pipe is arranged at the center position of the circular pressure-bearing steel plate;
and the long beam is provided with a connecting plate near the two ends respectively, and the connecting plate enables the long beam, the short beam and the connecting pipe on the test rack to be connected through M28 bolts.
More preferably, the loading holds in the palm including the top steel sheet, and the upper portion that the top held the steel sheet central point and put is provided with down horizontal spacing pipe, and the lower part position that the top held the steel sheet central point put is provided with the jack pipe, and the edge of top held the steel sheet is provided with four loading slip horizontal gag lever posts that are the circumference and distribute, and the angle between two adjacent loading slip horizontal gag lever posts is 90 degrees, and four interior angles of loading slip horizontal gag lever posts and test frame are corresponding to be set up.
Preferably, the reaction frame is made of 200# H-shaped steel of Q235; the diameter of the circular pressure-bearing steel plate is 600mm, and the thickness of the circular pressure-bearing steel plate is 30 mm; the diameter of the upper horizontal limiting pin pipe is 50mm, and the length of the upper horizontal limiting pin pipe is 50 mm;
the diameter of the top-bearing steel plate is 600mm, and the thickness of the top-bearing steel plate is 30 mm; the lower horizontal limiting pin pipe is a steel pipe with the diameter of 50mm and the length of 50 mm; the jack guide pipe is a steel pipe with the diameter of 100mm and the length of 100 mm; the loading sliding horizontal limiting rod adopts a screw, a 48 steel pipe is sleeved outside the screw, 50 mm-50 mm angle steel is vertically welded at the end part of the screw, and the length of the angle steel is 50 mm.
Preferably, the displacement detection equipment frame comprises 12 100N permanent magnets and 12T-shaped fixing frames, and the T-shaped fixing frames are used for being arranged at corresponding positions of the upper part, the middle part and the lower part of a piece to be tested to bind the distance measuring instrument;
the T-shaped fixing frame adopts 30 mm-30 mm angle steel, and the length is 150 mm.
Preferably, the loading system comprises a base plate, the base plate is installed on the upper surface of the base seat and is aligned with the central position of the time to be measured, a pressure sensor is arranged on the upper side of the central position of the base plate, a force transmission steel plate is arranged above the central position of the pressure sensor, a hydraulic jack is arranged on the upper side of the central position of the force transmission steel plate, and the telescopic end of the hydraulic jack is located in a jack guide pipe of the loading support;
the backing plate is made of Q235 steel plates with the diameter of 600mm and the thickness of 30 mm; the pressure sensor adopts a 500KN resistance conversion type pressure sensor; the force transmission steel plate is made of Q235 material, and the length, width and thickness of the force transmission steel plate are respectively 200mm, 200mm and 20 mm; the hydraulic jack adopts a 500KN hydraulic press.
Preferably, the three-dimensional protection frame is a box-shaped structure consisting of vertical steel guardrails and horizontal sealing plates, the vertical steel guardrails are arranged at the periphery of the top of the test frame, the horizontal sealing plates are arranged at the tops of the vertical steel guardrails, and the horizontal sealing plates are arranged at the tops of the test frame; the horizontal sealing plate is made of a wood plate with the thickness of 50 mm.
The steel structure combination column loading test device has the following advantages:
the invention integrates the technologies of sensing, measuring, mechanical manufacturing, hydraulic pressure and the like according to the stress requirement of the steel member, and meets the requirement of member test;
the invention is applied to the test of the assembled novel steel pipe combined column to obtain test data, the test data is used for analyzing, calculating and regulating the combined quantity, the total height is 21 meters, the 4 metal standard joints are connected in a plane, the root part is implanted into a concrete foundation to form rigid connection, the wind resistance grade is 16 grade, the earthquake fortification grade is 8.5 grade, the tensile resistance is 1664KN, the horizontal load is 50 tons without deformation, the upper part is provided with a protective fence resisting the horizontal thrust 1500N, and the requirements of in-situ test loading and data acquisition under the simulation working condition are met.
Therefore, the invention has the characteristics of reasonable design, simple structure, easy processing, small volume, convenient use, multiple purposes and the like, thereby having good popularization and use values.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a steel structure combination column loading test device;
FIG. 2 is a horizontal projection of the base;
FIG. 3 is a schematic view of a base;
FIG. 4 is a horizontal projection of a mid-section frame of the trial;
FIG. 5 is a schematic structural view of a joint frame;
FIG. 6 is a horizontal projection of the reaction frame;
FIG. 7 is a schematic structural view of a reaction frame;
FIG. 8 is a horizontal projection of the load tray;
FIG. 9 is a schematic view of a loading tray;
FIG. 10 is a horizontal projection of the displacement sensing device mount;
FIG. 11 is a plan view of a horizontal arrangement of a displacement sensing device frame;
FIG. 12 is a schematic structural view of a three-dimensional protective frame;
FIG. 13 is a schematic diagram of the loading system;
FIG. 14 is a horizontal projection of the loading system.
In the figure: 1. the device comprises a foundation base, 2, a test frame, 3, a reaction frame, 4, a loading support, 5, a displacement detection equipment frame, 6, a three-dimensional protection frame, 7, a loading system, 8, a right-angle corner protection plate, 9, a terrace and a foundation pit, 10, a connecting plate, 11, a joint frame, 12, a stand column, 13, a horizontal rod, 14, an inclined rod, 15, a connecting pipe, 16, a steel ladder stand, 17, a circular pressure-bearing steel plate, 18, an upper horizontal limiting pin pipe, 19, a long beam, 20, a short beam, 21, a bolt, 22, a lower horizontal limiting pin pipe, 23, a jack guide pipe, 24, a loading sliding horizontal limiting rod, 25, a permanent magnet, 26, a T-shaped fixing frame, 27, a vertical steel guardrail, 28, a horizontal sealing plate, 29, a backing plate, 30, a pressure sensor, 31, a force transmission steel plate, 32, a hydraulic jack, 33 and a top bearing steel plate.
Detailed Description
The steel structure combination column loading test device of the invention is described in detail with reference to the attached drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 in specific cases to those skilled in the art.
Example (b):
as shown in the attached drawing 1, the steel structure combination column loading test device structurally comprises a foundation base 1, four test frames 2 which are arranged in a square shape at intervals are mounted on the foundation base 1, a loading system 7 is mounted at the center of a gap formed by the four test frames 2, the lower side surface of the loading system 7 is positioned on the foundation base 1, a loading support 4 is mounted on the upper side surface of the center of the loading system 7, a displacement detection equipment frame 5 is mounted on the lower side surface of the edge of the loading support 4, and one end, far away from the loading support 4, of the displacement detection equipment frame 5 is mounted on the test frame 2; a reaction frame 3 is arranged above the loading system 7, the reaction frame 3 is used for fixedly connecting the four test frames 2, and the reaction frame 3 is positioned at the upper end of the test frame 2; the top of the test frame 2 is provided with a three-dimensional protection frame 6, and the three-dimensional protection frame 6 is positioned above the reaction frame 3.
As shown in fig. 2 and 3, the foundation bed 1 in the present embodiment is a square structure cast from C20 grade concrete; the length, width and height of the base seat 1 are 8000mm, 8000mm and 1500mm respectively; the depth of the test frame 2 implanted into the foundation base 1 is 1200mm, and the upper surface of the foundation base 1 arranged at the test frame 2 is higher than the upper surface of the foundation base 1 arranged at the terrace and the foundation pit 9 by 200 mm.
As shown in fig. 4 and 5, the test stand 2 in this embodiment adopts a combined steel frame, the combined steel frame is a square frame body composed of a plurality of sections of frames 11, each section of frame 11 is a square structure composed of a vertical column 12 and a horizontal rod 13 which are vertically arranged, a right-angle corner protection plate 8 is installed on the outer side of a right angle composed of the vertical column 12 and the horizontal rod 13, and a connecting pipe 15 is respectively arranged on the outer sides of two right-angle surfaces of the right-angle corner protection plate 8; inclined rods 14 are arranged at two opposite corners of the joint frame 11; a steel ladder 16 is arranged in the middle of the joint frame 11. The combined steel frame is of a cube structure formed by welding angle steels of various specifications made of Q235, the height of the test frame 2 is 25000mm and is divided into 10 sections, and the length, width and height of each section of the frame 11 are 4000mm, 4000mm and 2500mm respectively; the joint frame 11 is formed by connecting 16 upright posts 12, 48 horizontal rods 13, 32 inclined rods 14, 32 connecting pipes 15 and 32M 28 bolts 21; the length of the M28 bolt 21 is 300 mm; the upright post 12 adopts 150 mm-150 mm angle steel, and the length of the angle steel is 2500; the horizontal rod 13 adopts 50mm by 50mm angle steel, and the length of the angle steel is 1500 mm; the diagonal rods 14 are made of angle steel of 50mm x 50mm, and the length of the angle steel is 1500 mm; the connecting pipe 15 is a steel pipe having a diameter of 40mm, a wall thickness of 5mm and a length of 100 mm.
As shown in fig. 6 and 7, the reaction frame 3 in this embodiment is in a groined shape, the groined-shaped reaction frame 3 includes two long beams 19 arranged in parallel, two short beams 20 are installed between the two long beams 19, a circular pressure-bearing steel plate 17 is installed at one side of the middle position of the short beam 20, and an upper horizontal limiting pin pipe 18 is installed at the center position of the circular pressure-bearing steel plate 17; the long beam 19 is provided with a connecting plate 10 near two ends, and the connecting plate 10 enables the long beam 19, the short beam 20 and the connecting pipe 15 on the test frame 2 to be connected through M28 bolts 21. The reaction frame 3 adopts 200# H-shaped steel made of Q235; the diameter of the circular pressure-bearing steel plate 17 is 600mm, and the thickness is 30 mm; the upper horizontal limit pin tube 18 has a diameter of 50mm and a length of 50 mm.
As shown in fig. 8 and 9, the loading bracket 4 in this embodiment includes a top-bearing steel plate 33, a lower horizontal limiting pipe 22 is installed on an upper portion of a central position of the top-bearing steel plate 33, a jack guide pipe 23 is installed on a lower portion of the central position of the top-bearing steel plate 33, four loading sliding horizontal limiting rods 24 distributed circumferentially are installed on an edge of the top-bearing steel plate 33, an angle between two adjacent loading sliding horizontal limiting rods 24 is 90 degrees, and the loading sliding horizontal limiting rods 24 are disposed corresponding to four inner angles of the test frame 2. The diameter of the top-bearing steel plate 33 is 600mm, and the thickness is 30 mm; the lower horizontal limiting pin pipe 22 is a steel pipe with the diameter of 50mm and the length of 50 mm; the jack guide pipe 23 is a steel pipe with the diameter of 100mm and the length of 100 mm; the loading sliding horizontal limiting rod 24 adopts a screw, a 48-steel pipe is sleeved outside the screw, the end part of the screw is vertically welded with 50 mm-50 mm angle steel, and the length of the angle steel is 50 mm.
As shown in fig. 10 and 11, the displacement detecting apparatus frame 5 in this embodiment includes 12 pieces of 100N permanent magnets 25 and 12 t-shaped fixing frames 26, and the t-shaped fixing frames 26 are used for being disposed at corresponding positions of the upper, middle and lower parts of the piece to be tested to bind the distance measuring instruments; the T-shaped fixing frame 26 adopts angle steel of 30mm by 30mm, and the length is 150 mm.
As shown in fig. 13 and 14, the loading system 7 in this embodiment includes a backing plate 29, the backing plate 29 is installed on the upper surface of the base 1 and aligned with the center of the time to be measured, a pressure sensor 30 is installed on the upper side of the center of the backing plate 29, a force transmission steel plate 31 is installed above the center of the pressure sensor 30, a hydraulic jack 32 is installed on the upper side of the center of the force transmission steel plate 31, and the telescopic end of the hydraulic jack 32 is located in the jack guide tube 23 of the loading support; the backing plate 29 is made of Q235 steel plate with the diameter of 600mm and the thickness of 30 mm; the pressure sensor 30 adopts a 500KN resistance conversion type pressure sensor; the force transmission steel plate 31 is made of Q235 material, and the length, width and thickness of the force transmission steel plate 31 are respectively 200mm, 200mm and 20 mm; the hydraulic jack 32 adopts a 500KN hydraulic press.
As shown in fig. 12, the three-dimensional protection frame 6 in this embodiment is a box-shaped structure composed of a vertical steel guardrail 27 and a horizontal sealing plate 28, the vertical steel guardrail 27 is disposed at the periphery of the top of the test frame 2, the horizontal sealing plate 28 is disposed at the top of the vertical steel guardrail 27, that is, the horizontal sealing plate 28 is disposed at the top of the test frame 2; the horizontal sealing plate 28 is made of a wooden plate with a thickness of 50 mm.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A steel structure combination column loading test device is characterized by comprising a foundation base, wherein four test frames which are arranged in a square shape at intervals are arranged on the foundation base, a loading system is arranged at the central position of a gap formed by the four test frames, the lower side surface of the loading system is positioned on the foundation base, a loading support is arranged on the upper side surface of the central position of the loading system, a displacement detection equipment frame is arranged on the lower side surface of the edge position of the loading support, and one end, far away from the loading support, of the displacement detection equipment frame is arranged on the test frame;
a reaction frame is arranged above the loading system and is used for fixedly connecting the four test frames, and the reaction frame is positioned at the upper end of the test frame;
the top of the test stand is provided with a three-dimensional protection stand which is positioned above the reaction stand.
2. The steel-structured composite column loading test device according to claim 1, wherein the foundation bed is a square structure cast by C20 grade concrete;
the length, width and height of the base seat are 8000mm, 8000mm and 1500mm respectively;
the base seat's of the experimental frame implantation degree of depth is 1200mm, and the upper surface that sets up the base seat of experimental frame department is higher than the 200mm that sets up to the base seat upper surface of terrace and foundation ditch department.
3. The steel structure combination column loading test device according to claim 1 or 2, wherein the test frame is a combined steel frame, the combined steel frame is a square frame body composed of a plurality of sections of frames, each section of frame is a square structure composed of vertically arranged upright columns and horizontal rods, a right-angle corner protection plate is arranged on the outer side of a right angle formed by the upright columns and the horizontal rods, and connecting pipes are respectively arranged on the outer sides of two right-angle surfaces of the right-angle corner protection plate; inclined rods are arranged at two opposite corners of the section frame; a steel ladder stand is arranged in the middle of the section frame.
4. The steel-structure combination column loading test device of claim 3, wherein the combination steel frame is a cube structure formed by welding angle steels made of Q235, the height of the test frame is 25000mm, the test frame is divided into 10 sections, and the length, width and height of each section of frame are 4000mm, 4000mm and 2500mm respectively;
the joint frame is formed by connecting 16 upright posts, 48 horizontal rods, 32 inclined rods, 32 connecting pipes and 32M 28 bolts; the length of the M28 bolt is 300 mm; the upright posts are made of 150 mm-150 mm angle steel, and the length of the angle steel is 2500; the horizontal rods adopt angle steel with the length of 1500mm, wherein the angle steel is 50mm by 50 mm; the diagonal rods adopt angle steel of 50mm x 50mm, and the length of the angle steel is 1500 mm; the connecting pipe is a steel pipe with the diameter of 40mm, the wall thickness of 5mm and the length of 100 mm.
5. The steel structure combination column loading test device according to claim 4, wherein the reaction frame is in a groined shape, the groined-shaped reaction frame comprises two long beams which are arranged in parallel, two short beams are arranged between the two long beams, a circular pressure-bearing steel plate is arranged on one side of the middle position of each short beam, and an upper horizontal limiting pin pipe is arranged at the center position of the circular pressure-bearing steel plate;
and the long beam is provided with a connecting plate near the two ends respectively, and the connecting plate enables the long beam, the short beam and the connecting pipe on the test rack to be connected through M28 bolts.
6. The steel structure combination column loading test device of claim 5, wherein the loading support comprises a top-bearing steel plate, a lower horizontal limiting pipe is arranged at the upper part of the center of the top-bearing steel plate, a jack guide pipe is arranged at the lower part of the center of the top-bearing steel plate, four loading sliding horizontal limiting rods distributed circumferentially are arranged at the edge of the top-bearing steel plate, the angle between every two adjacent loading sliding horizontal limiting rods is 90 degrees, and the loading sliding horizontal limiting rods are arranged corresponding to four inner angles of the test frame.
7. The steel structure combination column loading test device of claim 6, wherein the reaction frame is made of 200# H-shaped steel Q235; the diameter of the circular pressure-bearing steel plate is 600mm, and the thickness of the circular pressure-bearing steel plate is 30 mm; the diameter of the upper horizontal limiting pin pipe is 50mm, and the length of the upper horizontal limiting pin pipe is 50 mm;
the diameter of the top-bearing steel plate is 600mm, and the thickness of the top-bearing steel plate is 30 mm; the lower horizontal limiting pin pipe is a steel pipe with the diameter of 50mm and the length of 50 mm; the jack guide pipe is a steel pipe with the diameter of 100mm and the length of 100 mm; the loading sliding horizontal limiting rod adopts a screw, a 48 steel pipe is sleeved outside the screw, 50 mm-50 mm angle steel is vertically welded at the end part of the screw, and the length of the angle steel is 50 mm.
8. The steel structure combination column loading test device of claim 1, wherein the displacement detection equipment frame comprises 100N permanent magnets and T-shaped fixing frames, and the T-shaped fixing frames are used for being arranged at corresponding positions of the upper part, the middle part and the lower part of a piece to be tested to bind the distance measuring instruments;
the T-shaped fixing frame adopts 30 mm-30 mm angle steel, and the length is 150 mm.
9. The steel-structure combined column loading test device as claimed in claim 1, wherein the loading system comprises a base plate, the base plate is mounted on the upper surface of the foundation base and aligned with the time center position to be tested, a pressure sensor is arranged on the upper side of the center position of the base plate, a force transmission steel plate is arranged above the center position of the pressure sensor, a hydraulic jack is arranged on the upper side of the center position of the force transmission steel plate, and the telescopic end of the hydraulic jack is located in a jack guide pipe of the loading support;
the backing plate is made of Q235 steel plates with the diameter of 600mm and the thickness of 30 mm; the pressure sensor adopts a 500KN resistance conversion type pressure sensor; the force transmission steel plate is made of Q235 material, and the length, width and thickness of the force transmission steel plate are respectively 200mm, 200mm and 20 mm; the hydraulic jack adopts a 500KN hydraulic press.
10. The steel structure combination column loading test device according to claim 1, 8 or 9, wherein the three-dimensional protection frame is a box-shaped structure consisting of a vertical steel guardrail and a horizontal sealing plate, the vertical steel guardrail is arranged at the periphery of the top of the test frame, and the horizontal sealing plate is arranged at the top of the vertical steel guardrail, namely the horizontal sealing plate is arranged at the top of the test frame; the horizontal sealing plate is made of a wood plate with the thickness of 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111071227.1A CN113740172A (en) | 2021-09-14 | 2021-09-14 | Steel constructs combination column loading test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111071227.1A CN113740172A (en) | 2021-09-14 | 2021-09-14 | Steel constructs combination column loading test device |
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