CN104963453A - Steel bar mechanical connecting sleeve for assembly concrete strong connection - Google Patents
Steel bar mechanical connecting sleeve for assembly concrete strong connection Download PDFInfo
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- CN104963453A CN104963453A CN201510318336.7A CN201510318336A CN104963453A CN 104963453 A CN104963453 A CN 104963453A CN 201510318336 A CN201510318336 A CN 201510318336A CN 104963453 A CN104963453 A CN 104963453A
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- screw thread
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Abstract
The invention discloses a steel bar mechanical connecting sleeve for assembly concrete strong connection. The steel bar mechanical connecting sleeve includes a mechanical connection sleeve body with cavities at both ends, the two ends of the mechanical connection sleeve body are steel bar screw-in sections of different diameters, one end is a small diameter steel bar screw-in section, and the other end is a large diameter steel bar screw-in section. The cavity inner wall of the small diameter steel bar screw-in section is provided with screw thread fitting the large diameter steel bar external thread, the screw thread of the cavity inner wall at the small diameter steel bar screw-in section and the screw thread of the cavity inner wall at the large diameter steel bar screw-in section are in the same direction or opposite directions. Effective transfer of stress between steel bars can be realized by mechanical snap-in between the steel bar and the mechanical connection sleeve body, the anchorage length of steel bar connection is greatly reduced, and the connection problem of longitudinal steel bars with different diameters in assembly concrete strong connection can be solved.
Description
Technical field
The present invention relates to a kind of steel concrete supporting sleeve for assembly concrete strong ties.
Background technology
Along with the quickening of China's architectural industrialization process, many provinces and cities have write out the prefabricated assembling type reinforced concrete structure technology code of these local market applicable, country's house and town and country construction portion also issued in 2014, implement industry standard " prefabricated concrete structure tecnical regulations ", and this has great significance to the technical development of promotion housing industrialization.
Guangdong Province has also responded national call, is about to carry out province-norm " assembly concrete building structure technology code ", different from industry standard, has introduced " strong ties " in Guangdong Province standard." strong ties " refers to structure when geological process is issued to maximum lateral displacement, and component enters plastic state, and connecting portion still keeps the connection of elastic stage.Can make like this to be greater than away from node area side longitudinal reinforcement area near node area side longitudinal reinforcement area, because reinforcing bar radical is consistent, then be greater than away from node area bar diameter near node area side bar diameter.By the inspiration of different-diameter longitudinal reinforcement connectivity problem in " strong ties ", in order to solve the connection of different-diameter reinforcing bar, a kind of steel concrete supporting sleeve for assembly concrete strong ties seems particularly important.
Summary of the invention
The object of this invention is to provide a kind of steel concrete supporting sleeve for assembly concrete strong ties, different-diameter longitudinal reinforcement connectivity problem in assembly concrete strong ties can be solved, guarantee different-diameter longitudinal reinforcement energy effective force.
Object of the present invention is achieved by taking following technical scheme:
A kind of steel concrete supporting sleeve for assembly concrete strong ties, comprise the mechanical connection sleeve body that two ends have cavity, it is characterized in that, described mechanical connection sleeve body two ends are the reinforcing bar section of being screwed into of different-diameter, one end is the minor diameter reinforcing bar section of being screwed into, the other end is the Large-size rebar section of being screwed into, the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into is provided with the screw thread suitable with minor diameter reinforcing bar external screw thread, and the cavity inner wall of the described Large-size rebar section of being screwed into is provided with the screw thread suitable with Large-size rebar external screw thread.
As one embodiment of the present invention, the screw thread of the screw thread of the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into and the cavity inner wall of the described Large-size rebar section of being screwed into is the screw thread of equidirectional.
As another embodiment of the invention, the screw thread of the screw thread of the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into and the cavity inner wall of the described Large-size rebar section of being screwed into is the screw thread of both forward and reverse directions.
The present invention is a kind of steel concrete supporting sleeve for assembly concrete strong ties, its maximum feature is the longitudinal reinforcement that two ends can connect different-diameter, effective transmission of stress between reinforcing bar can be realized by the mechanical snap effect between reinforcing bar and mechanical connection sleeve body, different-diameter longitudinal reinforcement connectivity problem in assembly concrete strong ties can be solved.
Accompanying drawing explanation
Fig. 1 is structural section schematic diagram of the present invention;
Fig. 2 is enforcement structural section schematic diagram of the present invention;
Fig. 3 is the present invention when being subject to axial force, the Stress transmit schematic diagram between screw thread, screw thread;
In figure, 1, mechanical connection sleeve body; 2, the screw thread of the cavity inner wall of the minor diameter reinforcing bar section of being screwed into; 3, the screw thread of the cavity inner wall of the Large-size rebar section of being screwed into; 4, the minor diameter reinforcing bar section of being screwed into; 5, the Large-size rebar section of being screwed into; 6, minor diameter reinforcing bar; 7, Large-size rebar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As Fig. 1, shown in 2, the present invention is used for the steel concrete supporting sleeve of assembly concrete strong ties, comprise the mechanical connection sleeve body 1 that two ends have cavity, described mechanical connection sleeve body 1 two ends are the reinforcing bar section of being screwed into of different-diameter, one end is the minor diameter reinforcing bar section of being screwed into 4, the other end is the Large-size rebar section of being screwed into 5, the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into 4 is provided with the screw thread 2 suitable with minor diameter reinforcing bar 6 external screw thread, the cavity inner wall of the described Large-size rebar section of being screwed into 5 is provided with the screw thread 3 suitable with Large-size rebar 7 external screw thread, screw thread 2 and the screw thread 3 of the cavity inner wall of the described Large-size rebar section of being screwed into of the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into are the screw thread of equidirectional or both forward and reverse directions.The key effect of steel concrete supporting sleeve of the present invention is that mechanical connection sleeve body 1 two ends will be respectively used to connect minor diameter reinforcing bar 6 and Large-size rebar 7.
As shown in Figure 2, first little, Large-size rebar end machining are become screw thread, consider the convenience of construction connecting reinforcement, equidirectional screw thread or positive/negative thread can be processed in little, Large-size rebar termination, now need the steel concrete supporting sleeve selecting corresponding screw thread direction; Secondly reinforcing bar is screwed into, when reinforcing bar can not move, can select described positive and negative screw thread mechanical connection sleeve, screw thread steel and described steel concrete supporting sleeve can realize effective Stress transmit by mechanical snap power, and will greatly reduce Bar Anchorage segment length.
As shown in Figure 3, represent that reinforcing bar is by typical stress characteristic when axial compression, pulling force respectively.In order to transmit the stress between reinforcing bar, mechanical connection sleeve body 1 serves key effect with screw thread 2,3, during reinforcing bar tension, screw thread also has the component F11 with axial force equidirectional, F11 can be decomposed into the power F13 in power F12 perpendicular to flank and parallel thread face, these two power produce power F22 and F23 by making screw thread respectively, this stress that will transmit between screw thread and screw thread, by mechanical connection sleeve body 1, power is delivered to an other end bar again, because reinforcing bar produces contrary stress under tension, make stress reliable delivery between reinforcing bar.
The present invention is a kind of steel concrete supporting sleeve for assembly concrete strong ties, and its maximum feature is the longitudinal reinforcement that two ends can connect different-diameter, is realized effective transmission of stress between reinforcing bar by mechanical snap.
Above-described embodiment is not limiting the scope of the present invention; embodiments of the present invention are not limited thereto; all this kind is according to foregoing of the present invention or according to the ordinary technical knowledge of this area and customary means; do not departing under the present invention's above-mentioned fundamental technics thought prerequisite; to the amendment of other various ways that said structure of the present invention is made, replacement or change, all should drop within protection scope of the present invention.
Claims (3)
1. the steel concrete supporting sleeve for assembly concrete strong ties, comprise the mechanical connection sleeve body that two ends have cavity, it is characterized in that, described mechanical connection sleeve body two ends are the reinforcing bar section of being screwed into of different-diameter, one end is the minor diameter reinforcing bar section of being screwed into, the other end is the Large-size rebar section of being screwed into, the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into is provided with the screw thread suitable with minor diameter reinforcing bar external screw thread, and the cavity inner wall of the described Large-size rebar section of being screwed into is provided with the screw thread suitable with Large-size rebar external screw thread.
2. the steel concrete supporting sleeve for assembly concrete strong ties according to claim 1, it is characterized in that, the screw thread of the screw thread of the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into and the cavity inner wall of the described Large-size rebar section of being screwed into is the screw thread of equidirectional.
3. the steel concrete supporting sleeve for assembly concrete strong ties according to claim 1, it is characterized in that, the screw thread of the screw thread of the cavity inner wall of the described minor diameter reinforcing bar section of being screwed into and the cavity inner wall of the described Large-size rebar section of being screwed into is the screw thread of both forward and reverse directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318336.7A CN104963453A (en) | 2015-06-11 | 2015-06-11 | Steel bar mechanical connecting sleeve for assembly concrete strong connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510318336.7A CN104963453A (en) | 2015-06-11 | 2015-06-11 | Steel bar mechanical connecting sleeve for assembly concrete strong connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963453A true CN104963453A (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510318336.7A Pending CN104963453A (en) | 2015-06-11 | 2015-06-11 | Steel bar mechanical connecting sleeve for assembly concrete strong connection |
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| CN (1) | CN104963453A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277879A (en) * | 2017-12-29 | 2018-07-13 | 广东省建筑科学研究院集团股份有限公司 | A kind of the strong ties construction and construction method of assembled vertical member and basis |
| CN112049331A (en) * | 2020-09-08 | 2020-12-08 | 衡阳市伟力钢筋机械有限公司 | A reinforcing bar mechanical connection sleeve for assembled concrete is connected by force |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004011209A (en) * | 2002-06-05 | 2004-01-15 | Hisahiro Hiraishi | Yield predetermined-region surrounding structure of screw reinforcement and material-end fixing structure of component in reinforced concrete building |
| CN104088401A (en) * | 2014-06-19 | 2014-10-08 | 北京工业大学 | Buckling-restrained steel bar construction |
| CN204112607U (en) * | 2014-10-13 | 2015-01-21 | 中铁十一局集团有限公司 | A kind of different-diameter reinforcing bar connector |
-
2015
- 2015-06-11 CN CN201510318336.7A patent/CN104963453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004011209A (en) * | 2002-06-05 | 2004-01-15 | Hisahiro Hiraishi | Yield predetermined-region surrounding structure of screw reinforcement and material-end fixing structure of component in reinforced concrete building |
| CN104088401A (en) * | 2014-06-19 | 2014-10-08 | 北京工业大学 | Buckling-restrained steel bar construction |
| CN204112607U (en) * | 2014-10-13 | 2015-01-21 | 中铁十一局集团有限公司 | A kind of different-diameter reinforcing bar connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277879A (en) * | 2017-12-29 | 2018-07-13 | 广东省建筑科学研究院集团股份有限公司 | A kind of the strong ties construction and construction method of assembled vertical member and basis |
| CN112049331A (en) * | 2020-09-08 | 2020-12-08 | 衡阳市伟力钢筋机械有限公司 | A reinforcing bar mechanical connection sleeve for assembled concrete is connected by force |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 510500 No. 121 martyrs East Road, Guangzhou, Guangdong, Tianhe District Applicant after: Guangdong Architectural Design Institute of the Department of Construction Co., Ltd. Applicant after: Guangdong Construction Academy Group Plc Address before: 510500 No. 121 martyrs East Road, Guangzhou, Guangdong, Tianhe District Applicant before: Guangdong Jianke Architectural Design Applicant before: Guangdong Construction Academy Group Plc |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |
|
| RJ01 | Rejection of invention patent application after publication |