CN219495909U - Loading end - Google Patents
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- CN219495909U CN219495909U CN202320261695.3U CN202320261695U CN219495909U CN 219495909 U CN219495909 U CN 219495909U CN 202320261695 U CN202320261695 U CN 202320261695U CN 219495909 U CN219495909 U CN 219495909U
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- connecting steel
- steel member
- members
- plates
- transverse slots
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a loading end, which comprises a telescopic frame, a first end steel member, a second end steel member, an adjusting rod, a first connecting steel plate, a second connecting steel plate, a plurality of first connecting steel members and a plurality of second connecting steel members, wherein the adjusting rods are arranged in parallel, the first end steel member and the second end steel member are arranged at intervals, the adjusting rod sequentially penetrates through the first end steel member and the second end steel member, first fixing nuts are arranged on two sides of the first end steel member, the first fixing nuts are in threaded fit with the adjusting rod, second fixing nuts are arranged on two sides of the second end steel member, and the second fixing nuts are in threaded fit with the adjusting rod. The technical scheme is used for solving the problems that the existing loading end for the pseudo static loading test piece is not reusable and has poor adjustability.
Description
Technical Field
The utility model belongs to the technical field of test equipment, and particularly relates to a loading end.
Background
The quasi-static test is an effective method for researching the most widely applied anti-seismic performance of a structure (or a component), can reveal the damage mechanism, hysteresis behavior, energy consumption capability and the like of the structure, and provides basis for improving a structural design method and anti-seismic construction measures. In the quasi-static test, for structures or components with relatively smaller out-of-plane rigidity or smaller cross-section sizes, such as shear walls, special-shaped columns and the like, a loading end for applying axial force and pushing and covering force is often required to be designed and manufactured so as to improve the uniformity of load transmission from a jack to a test piece, reduce the local abnormal stress at the contact position of the jack and the test piece, and simultaneously improve the stability of the test piece in the loading process. The common loading end is a cast-in-situ reinforced concrete part which is manufactured together with the end (top) part of the test piece and has an area larger than that of the test piece. Because the loading end is not allowed to be damaged in the test process, more steel bars are needed to be arranged in the end to ensure the strength and the rigidity of the end, and materials are wasted. In addition, after the test is finished, the intact loading end is discarded to be construction waste, and the concept of green development in China is not met. Along with the complicacy of the loading requirement of the quasi-static test, the existing various loading end devices mainly consider the improvement of functionality, such as multidirectional loading, uniform axial force, improvement of special loading requirement and the like, but still rely on the cast-in-situ reinforced concrete loading end manufactured together with a test piece to realize, and cannot be recycled.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a loading end to solve the problems of unrepeatable use and poor adjustability of the existing loading end for a pseudo static loading test piece.
The utility model provides a loading end, which comprises a telescopic frame, a first end steel member, a second end steel member, adjusting rods, a first connecting steel plate, a second connecting steel plate, a plurality of first connecting steel members and a plurality of second connecting steel members, wherein the adjusting rods are arranged in parallel, the first end steel member and the second end steel member are arranged at intervals, the adjusting rods sequentially penetrate through the first end steel member and the second end steel member, first fixing nuts are arranged on two sides of the first end steel member, the first fixing nuts are in threaded fit with the adjusting rods, second fixing nuts are arranged on two sides of the second end steel member, the second fixing nuts are in threaded fit with the adjusting rods, the first connecting steel plates are fixedly connected to the side face of the first end steel member, the second connecting steel plates are fixedly connected to the side face of the first end steel member, the telescopic frame is connected to the two end steel members, the first connecting steel members are connected to the two ends of the first connecting steel members, and the top faces of the telescopic frame are connected to the first connecting steel members; the number of the second connecting steel members is two, the two second connecting steel members are arranged at intervals, the side faces of the second connecting steel members are connected to the second end steel members, the top faces of the second connecting steel members are connected to the second connecting steel plates, and the distance between the two second connecting steel members is adjustable.
Further, the expansion bracket comprises a bracket body, a plurality of top plates and a plurality of bottom plates, wherein bearing seats are respectively arranged at two ends of the bottom of the bracket body, the two bearing seats are respectively connected to the first connecting steel plate and the second connecting steel plate, the top plates are arranged in parallel at the top end of the bracket body, the bottom plates are arranged in parallel at the bottom end of the bracket body, and the bottom plates are positioned between the two bearing seats.
Further, the loading end also comprises a rigid cushion block, and the rigid cushion block is positioned at the top of the top plates.
Further, a plurality of first transverse slots are formed in the first connecting steel plate in parallel, a plurality of second transverse slots are formed in the first end steel member in parallel towards the side face of the second end steel member, the top face of the first connecting steel member is connected to the plurality of first transverse slots through set bolts, the side face of the first connecting steel member is connected to the plurality of second transverse slots through set bolts, a plurality of third transverse slots are formed in the second connecting steel plate in parallel, a plurality of fourth transverse slots are formed in the second end steel member in parallel towards the side face of the first end steel member, the top face of the second connecting steel member is connected to the plurality of third transverse slots through set bolts, and the side face of the first connecting steel member is connected to the plurality of fourth transverse slots through set bolts.
Compared with the existing loading end, the loading end provided by the utility model has the following advantages:
(1) The loading end is different from the traditional cast-in-situ reinforced concrete loading end, does not need to be designed and constructed for multiple times in pseudo static tests of different structures or components, and is simple and convenient to install.
(2) The loading end is different from the traditional cast-in-situ reinforced concrete loading end, can be detached and reused after the test is finished, has high material utilization rate, is energy-saving and environment-friendly, and accords with the green development concept.
(3) The loading end, the middle part sets up the expansion bracket, and horizontal slotted hole (first horizontal slotted hole, second horizontal slotted hole, third horizontal slotted hole and fourth horizontal slotted hole) are seted up to first end steel member, second end steel member first linkage steel sheet and second linkage steel sheet, are different from current loading end, can be through tensile or shrink the test piece of expansion bracket adaptation different cross section length, through the test piece of the different cross section width of the position adaptation of the bolt of moving first linkage steel member, second linkage steel member at horizontal slotted hole, have adjustable size's function, and the suitability is strong.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a loading head;
FIG. 2 is a schematic view of a loading head in use.
Detailed Description
The utility model discloses a loading end, which is adjustable in size and reusable, replaces the traditional cast-in-situ reinforced concrete loading end, and reduces test cost and material waste.
The following description of the present utility model will be made more fully hereinafter with reference to the accompanying drawings, in which it is shown, however, some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, the utility model discloses a loading end, which comprises a telescopic frame 7, a first end steel member 3, a second end steel member 11, an adjusting rod 10, a first connecting steel plate 19, a second connecting steel plate 9, a first connecting steel member 16 and a second connecting steel member 14, wherein the number of the adjusting rods 10 is a plurality, the adjusting rods 10 are arranged in parallel, the first end steel member 3 and the second end steel member 11 are arranged at intervals, the adjusting rods 10 sequentially penetrate through the first end steel member 3 and the second end steel member 11, the adjusting rods 10 are provided with first fixing nuts 1 on two sides of the first end steel member 3, the first fixing nuts 1 are in threaded fit with the adjusting rods 10, the adjusting rods 10 are provided with second fixing nuts 13 on two sides of the second end steel member 11, the second fixing nut 13 is in threaded fit with the adjusting rod 10, the side face, facing the second end steel member 11, of the first end steel member 3 is fixedly connected with the first connecting steel plate 19, the side face, facing the first end steel member 3, of the second end steel member 11 is fixedly connected with the second connecting steel plate 9, two ends of the telescopic frame 7 are respectively connected to the first connecting steel plate 19 and the second connecting steel plate 9, the number of the first connecting steel members 16 is two, the two first connecting steel members 16 are arranged at intervals, the side face of the first connecting steel member 16 is connected to the first end steel member 3, the top face of the first connecting steel member 16 is connected to the first connecting steel plate 19, and the distance between the two first connecting steel members 16 is adjustable; the number of the second connecting steel members 14 is two, the two second connecting steel members 14 are arranged at intervals, the side faces of the second connecting steel members 14 are connected to the second end steel members 11, the top faces of the second connecting steel members 14 are connected to the second connecting steel plates 9, and the distance between the two second connecting steel members 14 is adjustable.
Further, the expansion bracket 7 comprises an expansion bracket body 6, a plurality of top plates 8 and a plurality of bottom plates 15, the two ends of the bottom of the expansion bracket body 6 are respectively provided with bearing seats 5, two bearing seats 5 are respectively connected to the first connecting steel plate 19 and the second connecting steel plate 9, a plurality of top plates 8 are arranged in parallel on the top end of the expansion bracket body 6, a plurality of bottom plates 15 are arranged in parallel on the bottom end of the expansion bracket body 6, and a plurality of bottom plates 15 are positioned between the two bearing seats 5.
Further, the loading head also includes a rigid spacer 18, and the rigid spacer 18 is located on top of the plurality of top plates 8.
Test forces are applied through the rigid spacer 18.
Further, the first connecting steel plate 19 is provided with a plurality of first transverse slots 2 in parallel, the side surface of the first end steel member 3 facing the second end steel member 11 is provided with a plurality of second transverse slots 4 in parallel, the top surface of the first connecting steel member 16 is connected to the plurality of first transverse slots 2 through a set bolt, the side surface of the first connecting steel member 16 is connected to the plurality of second transverse slots 4 through a set bolt, the second connecting steel plate 9 is provided with a plurality of third transverse slots 12 in parallel, the side surface of the second end steel member 11 facing the first end steel member 3 is provided with a plurality of fourth transverse slots in parallel, the top surface of the second connecting steel member 14 is connected to the plurality of third transverse slots 12 through a set bolt, and the side surface of the first connecting steel member 16 is connected to the plurality of fourth transverse slots through a set bolt.
Compared with the existing loading end, the loading end provided by the utility model has the following advantages:
(1) The loading end is different from the traditional cast-in-situ reinforced concrete loading end, does not need to be designed and constructed for multiple times in pseudo static tests of different structures or components, and is simple and convenient to install.
(2) The loading end is different from the traditional cast-in-situ reinforced concrete loading end, can be detached and reused after the test is finished, has high material utilization rate, is energy-saving and environment-friendly, and accords with the green development concept.
(3) The loading end, the middle part sets up expansion bracket 7, and horizontal slotted hole (first horizontal slotted hole 2, second horizontal slotted hole 4, third horizontal slotted hole 12 and fourth horizontal slotted hole) are offered to first end steel member 3, second end steel member 11 first connecting steel sheet 19 and second connecting steel sheet 9, are different from current loading end, can be through tensile or shrink expansion bracket 7 adaptation different cross section length's test piece 17, through moving the test piece of the different cross section width of the position adaptation of the bolt of first connecting steel member 16, second connecting steel member 14 at horizontal slotted hole, have adjustable size's function, and the suitability is strong.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (4)
1. The loading end is characterized by comprising a telescopic frame, a first end steel member, a second end steel member, adjusting rods, first connecting steel plates, second connecting steel plates, first connecting steel members and second connecting steel members, wherein the adjusting rods are multiple, the adjusting rods are arranged in parallel, the first end steel member and the second end steel member are arranged at intervals, the adjusting rods sequentially penetrate through the first end steel member and the second end steel member, first fixing nuts are arranged on two sides of the first end steel member, the first fixing nuts are in threaded fit with the adjusting rods, second fixing nuts are arranged on two sides of the second end steel member, the second fixing nuts are in threaded fit with the adjusting rods, the first connecting steel plates are fixedly connected to the side faces of the first end steel member, the second connecting steel plates are connected to the side faces of the first end steel member, the telescopic frame is connected to the first connecting steel members, the top faces of the first connecting steel members are connected to the two end steel members, and the top faces of the first connecting steel members are connected to the first connecting steel members; the number of the second connecting steel members is two, the two second connecting steel members are arranged at intervals, the side faces of the second connecting steel members are connected to the second end steel members, the top faces of the second connecting steel members are connected to the second connecting steel plates, and the distance between the two second connecting steel members is adjustable.
2. The loading end of claim 1, wherein the expansion bracket comprises a bracket body, a plurality of top plates and a plurality of bottom plates, wherein bearing seats are respectively arranged at two ends of the bottom of the bracket body, two bearing seats are respectively connected to the first connecting steel plate and the second connecting steel plate, a plurality of top plates are arranged at the top end of the bracket body in parallel, a plurality of bottom plates are arranged at the bottom end of the bracket body in parallel, and a plurality of bottom plates are positioned between the two bearing seats.
3. The load head of claim 2, further comprising a rigid spacer positioned atop a plurality of the top plates.
4. The loading end according to claim 1, wherein a plurality of first transverse slots are provided in parallel on the first connecting steel plate, a plurality of second transverse slots are provided in parallel on the side surface of the first end steel member facing the second end steel member, the top surface of the first connecting steel member is connected to the plurality of first transverse slots by providing bolts, the side surface of the first connecting steel member is connected to the plurality of second transverse slots by providing bolts, a plurality of third transverse slots are provided in parallel on the second connecting steel plate, a plurality of fourth transverse slots are provided in parallel on the side surface of the second end steel member facing the first end steel member, the top surface of the second connecting steel member is connected to the plurality of third transverse slots by providing bolts, and the side surface of the first connecting steel member is connected to the plurality of fourth transverse slots by providing bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320261695.3U CN219495909U (en) | 2023-02-20 | 2023-02-20 | Loading end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320261695.3U CN219495909U (en) | 2023-02-20 | 2023-02-20 | Loading end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219495909U true CN219495909U (en) | 2023-08-08 |
Family
ID=87515771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320261695.3U Active CN219495909U (en) | 2023-02-20 | 2023-02-20 | Loading end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219495909U (en) |
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2023
- 2023-02-20 CN CN202320261695.3U patent/CN219495909U/en active Active
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