CN201474095U - Combined connection device of reverse construction concrete beam steel bar and positive construction type steel column - Google Patents
Combined connection device of reverse construction concrete beam steel bar and positive construction type steel column Download PDFInfo
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- CN201474095U CN201474095U CN2009202094099U CN200920209409U CN201474095U CN 201474095 U CN201474095 U CN 201474095U CN 2009202094099 U CN2009202094099 U CN 2009202094099U CN 200920209409 U CN200920209409 U CN 200920209409U CN 201474095 U CN201474095 U CN 201474095U
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Abstract
The utility model relates to a combined connection device of a reverse construction concrete beam steel bar and a positive construction type steel column. The reverse construction concrete beam steel bar and the positive construction type steel column are connected by a positive construction concrete beam; the connection device comprises a weldable straight-thread sleeve with the internal surface being straight thread, and a welding joint of a fusion channel wall rod; the reverse construction concrete beam steel bar reserves a section of steel bar at the outer side of a reverse construction structure; the weldable straight-thread sleeve is welded on the positive construction type steel column; one end of a longitudinal steel bar of the positive construction concrete beam is connected with the weldable straight-thread sleeve, and the other end thereof is connected with the reserved section of the reverse construction concrete beam steel bar by the welding joint of the fusion channel wall rod. The welding joint of the fusion channel wall rod and the connecting joint of the weldable straight-thread sleeve in the combined connection device can all reach the mechanical index which is equal to or even super higher to the strength of a base material.
Description
Technical field
The utility model is a kind of against executing concrete beam reinforcing and just executing the steel column combined connection apparatus, especially refer to a kind of against executing concrete beam reinforcing and just executing steel column " but molten ledge bar weldering+welded sleeve " combined connection apparatus, it is a kind of reinforcing bar nodal connection device of reverse construction, affiliated science and technology field is engineering construction, and affiliated specialty is building structure and construction technology.
Background technology
Contrary sequence method is a kind of construction technology of building foundation pit supporting, and it reaches the purpose of supporting foundation pit by rationally utilizing the drag of building underground structure self.Contrary sequence method has that foundation pit deformation is little, support and engineering structures unite two into one and have advantages such as tangible economic benefit to be used in deep-foundation pit engineering, particularly in large-scale and core area, megapolis underground space development, the super large ultra-deep foundation pit adopts " reverse construction " economic benefit more remarkable.But reverse construction is compared with traditional suitable practice, also has that difficulty of construction is big, complicated construction technique, supporting construction connected node and just inverse connected node need to carry out the problems such as specially treated.The experience that adopts reverse construction was abroad just arranged before 30 years, and particularly in Japan, the practice of reverse construction and research have accumulated a large amount of experiences.China also adopted reverse construction in nearly ten years successively, had obtained rich practice experience equally, and increasing now large-scale base pit engineering has adopted the reverse construction technology.
In the reverse construction, just executing structure and contrary to execute being connected of structure be one of difficult point of reverse construction always, particularly in the super highrise building reverse construction, if just executing structural column steel column or reinforced concrete composite structure post, because of the operating space is restricted, contrary execute concrete beam reinforcing and just execute steel column and be connected difficult more.Traditional just inverse structure reinforcing bars connects, and generally select the modes such as straight screw sleeve, overlap welding, side bar weldering to connect, but above-mentioned several connected mode all exists drawback.
Straight screw sleeve be connected inverse during supporting construction reserved steel bar length can reduce, it has increased inverse operating space; But for huge ultradeep foundation pit, inverse time phase is generally longer, reserved steel bar silk head protection difficulty, to just execute phase reserved steel bar silk head may be destroyed; And weldable steel muscle branch sleeve (such as reinforced concrete composite structure) decentraction on beam reserved steel bar position and the later stage steel column during inverse, the above-mentioned two situations straight screw sleeve connects all can't guarantee quality of connection; Inverse beam reserved steel bar is when just executing steel column and be connected, and reserved steel bar and steel column are all located, adopts straight screw sleeve to connect to need reinforcing bar to rotate flexible, but being scale, this position reinforcing bar connects, and not flexible, the ordinary straight screw shell can't connect at all.
Overlap welding, side bar weldering operating procedure are simple, and the reserved steel bar joint need not special protection, satisfies weld length and can weld; But inverse phase reinforcing bar length in reserve is long than the straight screw sleeve connected mode, and inverse operating space is impacted; When inverse structure limit to just executing space, profile steel concrete column limit littler (the adjacent splice of regulation and stipulation stagger 35d all can not satisfy), if a beam steel joint part is positioned at structural column, overlap welding or side bar welding steel muscle tie up the reinforcing bars of structural columns position, and reinforcing bars of structural columns can't colligation; Big when the structural beams bar diameter, row is many, spacing hour between the single reinforcing bar, welding quality is difficult to guarantee, bar spacing is too small and affect concrete pouring quality after the welding.
Summary of the invention
Because above-mentioned existing inverse concrete beam reinforcing and the deficiency of just executing the steel column jockey, the technical problem that solve is: provide a kind of and solve inverse concrete beam reinforcing and just execute steel column and be connected difficult jockey.
For solving the problems of the technologies described above, the utility model provides a kind of tensile strength etc. strong or surpass the mother metal tensile strength properties, can realize just connecting under the narrow space against executing structure, the contrary concrete beam reinforcing and the combined connection apparatus of just executing steel column " but molten ledge bar weldering+welded sleeve " executed of easy construction, this linkage can be widely used in two ends and be fixed (as being steel column against the structure of just executing of executing connecting portion just), common straight thread connecting sleeve can't be constructed, just contrary executing connects reserved steel bar off normal silk head and can't be screwed in the straight screw sleeve and reinforcing bar connects intensive, the just contrary connecting portion of executing that the operating space is little.
A kind of inverse concrete beam reinforcing with just executing the steel column combined connection apparatus, be connected just to execute beams of concrete with just executing between the steel column at inverse concrete beam reinforcing, this jockey comprises welded straight screw sleeve and the molten ledge bar weldering welding point that an inner surface is straight thread, this inverse concrete beam reinforcing is reserved with one section reinforcing bar in the outside of inverse structure, the described straight screw sleeve that welds is welded on and just executes on the steel column, this is just being executed beams of concrete longitudinal reinforcement one end and can weld straight screw sleeve and be connected, and the other end is connected with one section inverse concrete beam reinforcing of described reservation by described molten ledge bar weldering welding point;
The described beams of concrete longitudinal reinforcement of just executing is processed formed straight thread silk head end with welding the end that straight screw sleeve is connected for the straight thread mantle fiber, and with the other end of molten ledge bar weldering welding point welding for adopting the flat formed flush end of cutting of anodontia sawing;
Described molten ledge bar weldering welding point comprises an angle steel;
The described beams of concrete longitudinal reinforcement of just executing fuses by welding with the end of reserving inverse concrete beam reinforcing, and the fillet in parallel shear between reinforcing bar and the angle steel is at least three layers;
Described against executing the concrete beam reinforcing length in reserve greater than 60mm.
Adopt reinforcing bar combined connection apparatus of the present utility model, in construction following advantage arranged:
1. can solve because of inverse time phase long, to just executing a phase reserved steel bar straight thread silk subject to severe risks of damage, and cause the problem that can not use straight screw sleeve to connect, and can realize steel bar connector with parent material of reinforcement rebar tensile strength, quality of connection is reliable.
2. contrary when executing the beam reserved steel bar and being connected with steel column, all locate against executing structure and just executing steel column, reinforcing bar is that scale connects, and not flexible adopts " but molten ledge bar weldering+welded sleeve " reinforcing bar combined connection apparatus to solve the problem that the ordinary straight screw shell can't connect at all.
3. adopt " but molten ledge bar weldering+welded sleeve " reinforcing bar combined connection apparatus, stretch out the length of inverse structure reserved steel bar as long as can connect greater than 60mm, for inverse structure and the follow-up construction of just executing structure all provide relatively rich operating space, reduced difficulty of construction.
4. molten ledge bar plumb joint volume and action required space are more much smaller than side bar weldering and overlap welding, when structural beams bar diameter and density are all big, adopt " but molten ledge bar weldering+welded sleeve " reinforcing bar combined connection apparatus, can guarantee welding quality of reinforcing steel, bar spacing changes not quite after the welding, does not affect concrete pouring quality.
5. the contrary beam reserved steel bar of executing is a problem that is difficult to solution in the reverse construction with just executing the beam steel decentraction, straight thread connecting sleeve can't use because of can not or not being screwed into fully, can be before adopting molten ledge bar weldering to connect with the reinforcing bar pre-bending of joint both sides, can weld connection behind the essentially concentric, solve the reinforcing bar decentraction and connected difficult problem.
Description of drawings
Fig. 1 for inverse concrete beam reinforcing of the present utility model with just execute steel column and be connected top view;
Fig. 2 is the sectional drawing of Fig. 1 along A-A;
Fig. 3 is a connection diagram of welding straight screw sleeve of the present utility model;
Fig. 4 is a molten ledge bar welding steel muscle connected node top view of the present utility model;
Fig. 5 is the sectional drawing of Fig. 4 along B-B;
Fig. 6 is the sectional drawing of Fig. 4 along C-C.
The specific embodiment
Inverse concrete beam reinforcing of the present utility model with just executing the steel column combined connection apparatus, its structure connects as shown in Figures 1 and 2, is just executing steel column 20 and is being connected by just executing beams of concrete 30 with inverse structure 10; During inverse the beam steel 11 of inverse structure 10 is reserved; During just executing earlier lifting be welded with can weld straight screw sleeve 40 just execute steel column 20, longitudinal reinforcement 31 1 ends that to just execute then beams of concrete 30 with can weld straight screw sleeve 40 and be connected, the other end links together by the reservation beam steel 11 of molten ledge bar weldering welding point 50 with inverse structure 10, last colligation beams of concrete stirrup 32, complete and other operations are finished the after-pouring concrete in beam stirrup 32 whole colligations, the most inverse structure 10 with just execute steel column 20 and reliably be connected.
Of the present utility model against executing concrete beam reinforcing and just executing the steel column combined connection apparatus, it is the linkage of " but molten ledge bar weldering+welded sleeve ", as shown in Figures 1 and 2, engineering shown in the figure is a reinforced concrete composite structure, foundation ditch is a reverse construction, has reserved the contrary concrete beam reinforcing 11 of executing in the contrary outside of executing structure 10 earlier during contrary the executing, and reserves connected mode and is molten ledge bar weldering, the reinforcing bar length in reserve is greater than 60mm, and the concrete length in reserve of present embodiment is 100mm; During just executing, just executing steel column 20 when produce in factory, is that the welded straight screw sleeve 40 of straight thread welds with steel column 20 with inner surface, is welded with the steel column 20 that can weld straight screw sleeve 40 and makes to finish and be transported to job site lifting earlier and put in place.
The job site will be reserved the termination of beam steel 11 reservations and clean out, measure and reserve beam steel 11 to the concrete size between the steel column 20 1 side listriums, just executing concrete beam longitudinal reinforcement 31 by this dimensioned, the one end carries out the straight thread mantle fiber in advance to be handled to form straight thread silk head end, the other end adopts flat formation of anodontia sawing to cut flush end, as shown in Figure 3, straight thread silk head end and the inner surface straight thread interlock mutually that can weld straight screw sleeve 40 that described beam longitudinal reinforcement 31 is handled through the straight thread mantle fiber, so with beam longitudinal reinforcement 31 by straight thread with can weld straight screw sleeve 40 and be connected, reinforcing bar exposes screw thread and is no more than two buttons; After the connection of straight thread silk head end finishes, Fig. 4 is to shown in Figure 6 for another example, adopting molten ledge bar weldering welding point 50 that reserved steel bar 11 is cut flush end with beam longitudinal reinforcement 31 is connected, use molten ledge bar weldering two reinforcing bars 11,31 to be held with the flush end position of cutting of just executing beam longitudinal reinforcement 31 at the contrary reservation beam steel 11 of executing with angle steel 51, after 51 strikings of seam crossing angle steel backing plate, answer continuous sequence, make the fusion of two reinforcing bars 11 and 31 ends, also should add three layers of weldering fillets in parallel shear between reinforcing bar 11,31 and the angle steel backing plate 51, weld seam should be full, and the surface should be smooth.
Through technology tension test check, molten ledge bar weldering welding point 50 of the present utility model and can weld straight screw sleeve 40 jointings and all can reach the mechanical index strong even superpower with mother metal etc.
Claims (5)
1. contrary execute concrete beam reinforcing and just executing the steel column combined connection apparatus for one kind, it is characterized in that, be connected just to execute concrete beam with just executing between the steel column at the contrary concrete beam reinforcing of executing, this linkage comprises a welded straight screw sleeve and the molten ledge bar weldering welding point that an inner surface is a straight thread, should contrary execute concrete beam reinforcing and be reserved with one section reinforcing bar in the contrary outside of executing structure, the described straight screw sleeve that welds is welded on and just executes on the steel column, this is just being executed concrete beam longitudinal reinforcement one end and can weld straight screw sleeve and be connected, and the other end a section by described molten ledge bar weldering welding point and described reservation is connected against executing concrete beam reinforcing.
2. according to claim 1 against executing concrete beam reinforcing and just executing the steel column combined connection apparatus, it is characterized in that, the described concrete beam longitudinal reinforcement of just executing is handled formed straight thread silk head end with welding the end that straight screw sleeve is connected for the straight thread mantle fiber, and with the other end of molten ledge bar weldering welding point welding for adopting the flat formed flush end of cutting of anodontia sawing.
3. according to claim 1ly contrary execute concrete beam reinforcing and just execute the steel column combined connection apparatus, it is characterized in that described molten ledge bar weldering welding point comprises an angle steel.
4. according to claim 3 against executing concrete beam reinforcing and just executing the steel column combined connection apparatus, it is characterized in that, the described concrete beam longitudinal reinforcement of just executing passes through the welding fusion with the contrary end of executing concrete beam reinforcing of reservation, and the fillet in parallel shear between reinforcing bar and the angle steel is at least three layers.
5. according to claim 1ly contrary execute concrete beam reinforcing and just execute the steel column combined connection apparatus, it is characterized in that, describedly contraryly execute the concrete beam reinforcing length in reserve greater than 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202094099U CN201474095U (en) | 2009-09-08 | 2009-09-08 | Combined connection device of reverse construction concrete beam steel bar and positive construction type steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202094099U CN201474095U (en) | 2009-09-08 | 2009-09-08 | Combined connection device of reverse construction concrete beam steel bar and positive construction type steel column |
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| CN201474095U true CN201474095U (en) | 2010-05-19 |
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| CN2009202094099U Expired - Fee Related CN201474095U (en) | 2009-09-08 | 2009-09-08 | Combined connection device of reverse construction concrete beam steel bar and positive construction type steel column |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949215A (en) * | 2010-11-05 | 2011-01-19 | 中国建筑第八工程局有限公司 | Mounting construction method of steel structure support seat |
| CN101949199A (en) * | 2010-09-06 | 2011-01-19 | 王昌勇 | Connecting structure and method for SRC (Steel Reinforced Concrete) steel rib and RC (Reinforced Concrete) beam steel |
| CN102505760A (en) * | 2011-11-17 | 2012-06-20 | 东南大学 | Prefabricated combined beam and column node member |
| CN103628571A (en) * | 2013-12-09 | 2014-03-12 | 广州市第一建筑工程有限公司 | Beam-column joint for reverse construction method and construction method |
| CN106223492A (en) * | 2016-07-18 | 2016-12-14 | 中国建筑第八工程局有限公司 | Steel column and the attachment structure of concrete beam reinforcing and method of attachment |
| CN111590229A (en) * | 2020-06-17 | 2020-08-28 | 中铁十四局集团建筑工程有限公司 | Combined connection method for concrete beam steel bars and section steel columns |
| CN115306162A (en) * | 2022-09-01 | 2022-11-08 | 中铁十一局集团有限公司 | Reverse construction welding connection construction method for section steel column and large-size section concrete beam |
-
2009
- 2009-09-08 CN CN2009202094099U patent/CN201474095U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101949199A (en) * | 2010-09-06 | 2011-01-19 | 王昌勇 | Connecting structure and method for SRC (Steel Reinforced Concrete) steel rib and RC (Reinforced Concrete) beam steel |
| CN101949215A (en) * | 2010-11-05 | 2011-01-19 | 中国建筑第八工程局有限公司 | Mounting construction method of steel structure support seat |
| CN102505760A (en) * | 2011-11-17 | 2012-06-20 | 东南大学 | Prefabricated combined beam and column node member |
| CN103628571A (en) * | 2013-12-09 | 2014-03-12 | 广州市第一建筑工程有限公司 | Beam-column joint for reverse construction method and construction method |
| CN106223492A (en) * | 2016-07-18 | 2016-12-14 | 中国建筑第八工程局有限公司 | Steel column and the attachment structure of concrete beam reinforcing and method of attachment |
| CN111590229A (en) * | 2020-06-17 | 2020-08-28 | 中铁十四局集团建筑工程有限公司 | Combined connection method for concrete beam steel bars and section steel columns |
| CN115306162A (en) * | 2022-09-01 | 2022-11-08 | 中铁十一局集团有限公司 | Reverse construction welding connection construction method for section steel column and large-size section concrete beam |
| CN115306162B (en) * | 2022-09-01 | 2023-09-26 | 中铁十一局集团有限公司 | Reverse construction and welding connection construction method for steel column and large-size section concrete beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20180908 |