CN218766369U - Special-shaped steel node test structure - Google Patents
Special-shaped steel node test structure Download PDFInfo
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- CN218766369U CN218766369U CN202223106627.4U CN202223106627U CN218766369U CN 218766369 U CN218766369 U CN 218766369U CN 202223106627 U CN202223106627 U CN 202223106627U CN 218766369 U CN218766369 U CN 218766369U
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Abstract
The utility model discloses a special-shaped steel node test structure, include by the special-shaped steel node structure that box post, box roof beam and I-beam formed, be used for applying the vertical load of invariable vertical load to the upper end of box post and apply the reciprocating actuator of reciprocal horizontal thrust with being used for applying to the upper end of box post, the cross sectional area of box roof beam is greater than the cross sectional area of I-beam, and the junction of box post and box roof beam has set gradually first node nuclear core space and second node nuclear core space from top to bottom. The utility model has the advantages of reasonable design, can effectively avoid will appearing the not enough or too big problem of roof beam dead weight in the great one side of span because of the roof beam that frame node roof beam both sides girder steel cross-section form is the same and lead to, can simulate the actual restraint state of dysmorphism steel node structure, through carrying out the deformation monitoring respectively to first node nuclear area and second node nuclear area, and then realize the reliable test of variable cross-section and the steel construction node mechanical properties of variable height.
Description
Technical Field
The utility model belongs to the technical field of the special-shaped steel structure, concretely relates to special-shaped steel node test structure.
Background
In the steel structure, the node is an indispensable component for forming the frame, is a key part for ensuring the safety and reliability of a structural system, has important influence on the stress performance of the structure, and directly influences the performance of the steel structure by the connection mode and the quality of the structure. With the development of national economy, various steel structure buildings are gradually applied in China, the buildings are developed in large-scale and large-span directions, and a plurality of structures with complex body shapes appear. For a complex structure, if a conventional rigid joint is adopted, the section forms and the rigidity of steel beams on two sides of a frame joint beam are the same, so that the problems of insufficient bearing capacity or overlarge self weight of the beam can occur on one side with larger span; if the span of the beams on two sides of the conventional node is changed, the same section form and the same height are still adopted, so that economic waste on the side with the smaller span is inevitably caused, and if the scale of the engineering construction is larger, the integral construction cost is greatly increased, and unnecessary waste is caused. Therefore, the problems can be solved by adopting the deformed steel node, but the mechanical property of the deformed steel node is not known, and the use of the deformed steel node is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the prior art is directed against, a deformed steel node test structure is provided, its structural design is reasonable, through making the box post, box beam and I-beam form a deformed steel node structure, can effectively avoid will appearing the not enough or too big problem of roof beam dead weight in the great one side of span because of the roof beam that leads to of frame node roof beam both sides girder steel cross-sectional form the same, can simulate deformed steel node structure's actual restraint state, through carrying out deformation monitoring respectively to first node nuclear area and second node nuclear area, and then realize the reliable test of variable cross-section and the steel construction node mechanical properties of variable height.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a dysmorphism steel node test structure which characterized in that: the special-shaped steel joint structure comprises a box column, a box beam and an I-beam, a vertical load applying mechanism for applying constant vertical load to the upper end of the box column, and a reciprocating actuator for applying reciprocating horizontal thrust to the upper end of the box column;
the box-type column fixing device comprises a box-type column, a box-type beam, an I-shaped beam, a first hinge seat, a hinge support and a second hinge seat, wherein the box-type beam and the I-shaped beam are perpendicular to the box-type column, the lower end of the box-type column is hinged to the ground through the first hinge seat, one end of the box-type beam and one end of the I-shaped beam are respectively connected with two oppositely-arranged side walls of the box-type column, the other end of the box-type beam and the other end of the I-shaped beam are respectively connected with the ground through the hinge support and chain rod, the cross section area of the box-type beam is larger than that of the I-shaped beam, the top of the box-type beam is flush with the top of the I-shaped beam, and the bottom of the box-type beam is lower than that of the I-shaped beam;
the junction of case type post and case type roof beam has set gradually first node core space and second node core space from top to bottom, first node core space and second node core space all are located on the case type post with a lateral wall that the extending direction of case type roof beam paralleled.
Foretell special-shaped steel node test structure which characterized in that: first node core space and second node core space are the rectangle region, first node core space is located the one end of I-beam, second node core space is located the one end below of I-beam.
Foretell dysmorphism steel node test structure which characterized in that: first node core area respectively is provided with a percentage table along two diagonal directions, second node core area respectively is provided with a percentage table along two diagonal directions.
Foretell special-shaped steel node test structure which characterized in that: the reciprocating actuator is arranged on one side, close to the I-beam, of the box-shaped column, and a reaction wall for the reciprocating actuator to rotate is arranged on the outer side of one end, far away from the box-shaped column, of the I-beam.
Foretell special-shaped steel node test structure which characterized in that: the vertical load applying mechanism comprises a door-shaped reaction frame and a jack which is arranged on the lower portion of a cross beam of the door-shaped reaction frame and used for jacking the top of the box-type column, and a pressure-bearing end plate is arranged on the top of the box-type column.
Foretell special-shaped steel node test structure which characterized in that: the hinged support chain rod comprises a telescopic chain rod and two second hinged supports which are arranged at two ends of the telescopic chain rod respectively.
Compared with the prior art, the utility model has the following advantage:
1. the utility model discloses a make box post, box girder and I-beam form a deformed steel node structure, make the cross sectional area of I-beam be less than the cross sectional area of box girder simultaneously, can effectively avoid will appearing the not enough or too big problem of roof beam dead weight in the great one side of span because of the roof beam that leads to of the same of frame node roof beam both sides girder steel cross-sectional form, can effectively reduce the waste of material simultaneously.
2. The utility model discloses a set up the bottom of box type post is articulated subaerial, all connect the hinged-support chain pole simultaneously between the end of encorbelmenting of box type roof beam and I-beam and ground, be convenient for retrain the actual restraint state in order to simulate special-shaped steel node structure to this special-shaped steel node structure, and then be convenient for carry out performance test to it.
3. The utility model discloses a junction at box post and box roof beam has set gradually first node nuclear core district and second node nuclear core district from top to bottom, is convenient for through carrying out the deformation monitoring respectively to first node nuclear core district and second node nuclear core district, and then realizes the reliable test of variable cross section and the steel construction node mechanical properties of variable height, guarantees the reliable use of abnormal shape node.
4. The utility model discloses a mechanism is applyed to vertical load applys invariable vertical load to box capital portion to reciprocating actuator applys reciprocal horizontal thrust to the upper end of box post, is convenient for simulate the actual atress condition of dysmorphism steel node structure, and then carries out performance test to the dysmorphism steel node structure.
To sum up, the utility model has the advantages of reasonable design, form a deformed steel node structure through making box post, box girder and I-beam, can effectively avoid will appearing the not enough or too big problem of roof beam dead weight in the great one side of span because of the roof beam that leads to that frame node roof beam both sides girder steel cross-sectional form is the same, can simulate deformed steel node structure's actual restraint state, through carrying out deformation monitoring respectively to first node core space and second node core space, and then realize the reliable test of variable cross section and the steel construction node mechanical properties of variable height.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Figure 2 is the utility model discloses the picture is laid to percentage table, vertical displacement meter and horizontal displacement meter's position.
Description of reference numerals:
1-box column; 2-box beam; 3, an I-beam;
4-a reciprocating actuator; 5-a first articulated seat; 6-first node core area;
7-second node core area; 8-dial indicator; 9-counterforce wall;
10-door-shaped reaction frame; 11-a jack; 12-a pressure-bearing end plate;
13-a retractable chain bar; 14-a second hinge support; 15-vertical displacement meter;
16-horizontal displacement meter.
Detailed Description
As shown in fig. 1 and 2, the present invention includes a deformed steel node structure formed by a box column 1, a box beam 2, and an i-beam 3, a vertical load applying mechanism for applying a constant vertical load to the upper end of the box column 1, and a reciprocating actuator 4 for applying a reciprocating horizontal thrust to the upper end of the box column 1;
the box-type column comprises a box-type column 1, a box-type beam 2, an I-shaped beam 3, a first hinge seat 5, a first hinge seat and a second hinge seat, wherein the box-type beam 2 and the I-shaped beam 3 are perpendicular to the box-type column 1, the lower end of the box-type column 1 is hinged to the ground through the first hinge seat 5, one end of the box-type beam 2 and one end of the I-shaped beam 3 are respectively connected with two oppositely-arranged side walls of the box-type column 1, the other end of the box-type beam 2 and the other end of the I-shaped beam 3 are respectively connected with the ground through a hinge support chain rod, the cross section area of the box-type beam 2 is larger than that of the I-shaped beam 3, the top of the box-type beam 2 is flush with the top of the I-shaped beam 3, and the bottom of the box-type beam 2 is lower than that of the I-shaped beam 3;
the junction of box type post 1 and box type roof beam 2 has set gradually first node core space 6 and second node core space 7 from top to bottom, first node core space 6 and second node core space 7 all are located on box type post 1 a lateral wall that parallels with the extending direction of box type roof beam 2.
When the special-shaped steel node structure is used practically, the outer outlines of the cross sections of the box-shaped beam 2 and the I-shaped beam 3 are rectangular, the vertical thickness of the I-shaped beam 3 is smaller than that of the box-shaped beam 2, the thickness of the I-shaped beam 3 perpendicular to the extending direction of the I-shaped beam is equal to that of the box-shaped beam 2 perpendicular to the extending direction of the box-shaped beam, the box-shaped column 1, the box-shaped beam 2 and the I-shaped beam 3 form a special-shaped steel node structure, meanwhile, the cross section area of the I-shaped beam 3 is smaller than that of the box-shaped beam 2, the problem that the bearing capacity is insufficient or the self weight of the beam is overlarge due to the fact that the cross sections of the steel beams on two sides of the frame node beam are the same can be effectively avoided, and meanwhile, waste of materials can be effectively reduced.
It should be noted that the bottom of the box column 1 is hinged to the ground, and the hinged support chain rods are connected between the overhanging ends of the box beam 2 and the i-beam 3 and the ground, so that the deformed steel node structure can be restrained to simulate the actual restraint state of the deformed steel node structure, and further the performance test of the deformed steel node structure can be performed conveniently.
During concrete implementation, through the junction at box post 1 and box roof beam 2 from top to bottom set gradually first node core space 6 and second node core space 7, be convenient for through carrying out deformation monitoring respectively to first node core space 6 and second node core space 7, and then realize the reliable test of variable cross section and variable height steel structure node mechanical properties, guarantee the reliable use of heterotypic node.
It should be noted that a constant vertical load is applied to the top of the box column 1 through the vertical load applying mechanism, and the reciprocating actuator 4 applies reciprocating horizontal thrust to the upper end of the box column 1, so that the actual stress condition of the special-shaped steel node structure can be conveniently simulated, and further, the performance test of the special-shaped steel node structure can be performed.
During specific implementation, the box-type column 1 and the box-type beam 2 are connected in a welding mode, the box-type column 1 and the I-shaped beam 3 are connected in a bolt welding hybrid mode, partition plates are arranged at the connecting positions of the upper flange and the lower flange of the I-shaped beam 3 and the box-type beam 2 and the flange of the box-type column 1, all welding seams are full penetration butt welding seams, and all the butt welding seams are provided with backing plates to prevent welding leakage.
In this embodiment, first node core area 6 and second node core area 7 are the rectangle region, first node core area 6 is located the one end of I-beam 3, second node core area 7 is located the one end below of I-beam 3.
During actual use, the first node core area 6 is just located in the connecting height range of the I-beam 3 and the box column 1, and the second node core area 7 is just located in the connecting height range of the box column 1 and the box column 2 and is not located in the connecting height range of the I-beam 3 and the box column 1.
In this embodiment, the first node core area 6 is provided with one percentage table 8 along two diagonal directions, and the second node core area 7 is provided with one percentage table 8 along two diagonal directions.
During practical use, the four dial indicators 8 are arranged to test the shearing deformation of the first node core area 6 and the second node core area 7.
During specific implementation, a vertical displacement meter 15 is respectively arranged below one end of the I-beam 3 close to the box-shaped column 1 and below one end of the box-shaped beam 2 close to the box-shaped column 1, a horizontal displacement meter 16 is arranged on one side of the box-shaped column 1 close to the I-beam 3, and a plurality of horizontal displacement meters 16 are arranged on one side of the box-shaped column 1 close to the box-shaped beam 2.
In actual use, a horizontal displacement meter 16 is arranged on the box-shaped column 1 and close to the lower side of the box-shaped beam 2, a vertical displacement meter 15 is arranged on the lower portion of one end, close to the box-shaped column 1, of the box-shaped beam 2, and the horizontal displacement meter 16 and the vertical displacement meter 15 which are arranged on the I-shaped beam 3 and close to the lower portion of the cross position of the box-shaped column 1, and the horizontal displacement meter 16 and the vertical displacement meter 15 which are arranged below the cross position of the box-shaped beam 2 and the box-shaped column 1 are both used for testing node deformation.
It should be noted that the overhanging ends of the box beam 2 and the i-beam 3 are both provided with a vertical displacement meter 15 for measuring the overall vertical displacement thereof; the upper end, the lower end and the middle part of the box column 1 are respectively provided with a horizontal displacement meter 16 for measuring the horizontal displacement of the box column, and strain gauges are arranged on the box column 1, the box beam 2 and the I-beam 3 close to the nodes.
In this embodiment, the reciprocating actuator 4 is disposed on one side of the box column 1 close to the i-beam 3, and a reaction wall 9 for allowing the reciprocating actuator 4 to rotate is disposed on an outer side of one end of the i-beam 3 far away from the box column 1.
In this embodiment, the vertical load applying mechanism includes a portal reaction frame 10 and a jack 11 disposed at a lower portion of a cross beam of the portal reaction frame 10 and used for jacking the top of the box column 1, and a pressure-bearing end plate 12 is disposed at the top of the box column 1.
In actual use, the cylinder of the jack 11 is just mounted below the cross beam of the portal reaction frame 10 and can horizontally move along the cross beam of the portal reaction frame 10 to a small extent.
In this embodiment, the hinge support link includes a retractable link 13 and two second hinge supports 14 respectively provided at both ends of the retractable link 13.
In practical use, the second hinged support 14 at the lower end of the telescopic chain rod 13 is mounted on a base arranged on the ground, the second hinged support 14 at the upper end of the telescopic chain rod 13 is connected to the overhanging end of the box-shaped beam 2 or the I-shaped beam 3, and the lower end of the box-shaped column 1 is hinged to the base arranged on the ground through the first hinged support 5.
The above, only be the preferred embodiment of the utility model discloses a it is not right to make any restriction the utility model discloses all according to the utility model discloses any simple modification, change and the equivalent structure change of technical essence to what above embodiment was made all still belong to the technical scheme's of the utility model protection within range.
Claims (6)
1. The utility model provides a dysmorphism steel node test structure which characterized in that: the special-shaped steel beam structure comprises a special-shaped steel node structure formed by a box-shaped column (1), a box-shaped beam (2) and an I-shaped beam (3), a vertical load applying mechanism for applying constant vertical load to the upper end of the box-shaped column (1), and a reciprocating actuator (4) for applying reciprocating horizontal thrust to the upper end of the box-shaped column (1);
the box-type beam (2) and the I-beam (3) are perpendicular to each other, the lower end of the box-type column (1) is hinged to the ground through a first hinge seat (5), one end of the box-type beam (2) and one end of the I-beam (3) are respectively connected with two oppositely-arranged side walls of the box-type column (1), the other end of the box-type beam (2) and the other end of the I-beam (3) are respectively connected with the ground through a hinged support chain rod, the cross section area of the box-type beam (2) is larger than that of the I-beam (3), the top of the box-type beam (2) is flush with the top of the I-beam (3), and the bottom of the box-type beam (2) is lower than that of the I-beam (3);
the junction of box type post (1) and box type roof beam (2) has set gradually first node core area (6) and second node core area (7) from top to bottom, first node core area (6) and second node core area (7) all are located on box type post (1) on the lateral wall that parallels with the extending direction of box type roof beam (2).
2. A deformed steel joint test structure according to claim 1, characterized in that: first node core district (6) and second node core district (7) are the rectangle region, first node core district (6) are located the one end of I-beam (3), second node core district (7) are located the one end below of I-beam (3).
3. A deformed steel joint test structure according to claim 2, characterized in that: first node core area (6) respectively are provided with one percentage table (8) along two diagonal directions, second node core area (7) respectively are provided with one percentage table (8) along two diagonal directions.
4. A deformed steel joint test structure according to claim 1, characterized in that: the reciprocating actuator (4) is arranged on one side, close to the I-shaped beam (3), of the box-type column (1), and a reaction wall (9) for the reciprocating actuator (4) to rotate is arranged on the outer side of one end, far away from the box-type column (1), of the I-shaped beam (3).
5. A deformed steel joint test structure according to claim 1, wherein: the vertical load applying mechanism comprises a door-shaped reaction frame (10) and a jack (11) which is arranged on the lower portion of a cross beam of the door-shaped reaction frame (10) and used for jacking the top of the box-shaped column (1), and a pressure-bearing end plate (12) is arranged on the top of the box-shaped column (1).
6. A deformed steel joint test structure according to claim 1, wherein: the hinged support chain rod comprises a telescopic chain rod (13) and two second hinged supports (14) which are respectively arranged at two ends of the telescopic chain rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223106627.4U CN218766369U (en) | 2022-11-22 | 2022-11-22 | Special-shaped steel node test structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223106627.4U CN218766369U (en) | 2022-11-22 | 2022-11-22 | Special-shaped steel node test structure |
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| Publication Number | Publication Date |
|---|---|
| CN218766369U true CN218766369U (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223106627.4U Active CN218766369U (en) | 2022-11-22 | 2022-11-22 | Special-shaped steel node test structure |
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| CN (1) | CN218766369U (en) |
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- 2022-11-22 CN CN202223106627.4U patent/CN218766369U/en active Active
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