CN204139644U - A kind of newly-increased beam of SRC member - Google Patents
A kind of newly-increased beam of SRC member Download PDFInfo
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- CN204139644U CN204139644U CN201420576957.6U CN201420576957U CN204139644U CN 204139644 U CN204139644 U CN 204139644U CN 201420576957 U CN201420576957 U CN 201420576957U CN 204139644 U CN204139644 U CN 204139644U
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Abstract
The utility model discloses a kind of newly-increased beam of SRC member, by cutting the layer of concrete of position that former SRC member needs reinforcement, cut off the stirrup and reinforcing bar that expose, at the shaped steel of former SRC member, the new shaped steel of corbel type is welded between stirrup and reinforcing bar, new reinforcing bar is welded in the outside of new shaped steel, at the stirrup that the outside colligation of new reinforcing bar is new, pour into a mould new concrete, namely the newly-increased beam reinforced the connection in SRC member is obtained, this corbel type reinforcement means, artificial and duration can be saved, only need cut the topping that SRC member need fix bracket position, cut operation less, airborne dust, noise is less, bracket only needs welding, on SRC member without impact.
Description
Technical field
The utility model relates to a kind of newly-increased beam of SRC member.
Background technology
At present in civilian construction and industrial construction, because the reason such as function change, bearing capacity increase of building, and need in original building structure, to increase beam newly to meet the demands, the current beam that newly increases in original building structure is a kind of simple and effective strengthening reconstruction way.
Original reinforced concrete structure generally carries out newly-increased beam reinforcing by bar planting, need hole on raw steel tendon concrete structure, and reach certain degree of depth, boring should with electric hammer or air drill pore-forming, in case of reinforcing bar adjusting hole position is avoided, then reinforcing bar is connected with original building structure steel planting mode, then carries out stirrup colligation and build.
Application number be 201210470138.9 Chinese utility model patent application discloses that a kind of embedding re-bar technique technique.This processing step is as follows: one, on concrete component, finish bar planting position with chalk or slate pencil; Two, hole: boring uses supporting electric impact drill, and during boring, empty spacing and hole depth should meet rebar-planting anchorage technique parameter request; Three, clear hole: during clear hole, first removes hole dust with hair-dryer, will complete, will keep dry in hole through repeatedly blowing brush, can not be moist, does not more allow use water to clean, in order to avoid the moisture remained in hole weakens the effect of adhesive; Four, reinforcing bar adhesive is filled out; Five, bar planting; Six, gel.The utility model can replace the zonule of the method for processing foundation such as pile tube to constructional difficulties to realize structure base meeting construction requirement to bearing capacity and stability thereof, do not need considerable damage existing structure, technique is simple, pull strength is high, construction costs is low, enables partial structurtes consolidation effect reach design strength requirement.
In the building of a new generation, China has tended to adopt SRC member, and the advantage having other structures not possess, is widely used in all kinds of building.The bearing capacity of SRC member is far above the reinforced concrete member of equal profile, ductility ratio reinforced concrete structure significantly improves, the good therefore increasing novel building of anti-seismic performance uses Steel Reinforced Concrete Members, and existing SRC member generally comprises shaped steel, reinforcing bar, stirrup and concrete.
For the newly-increased beam that reinforces the connection in SRC member, adopt traditional steel planting technology need hole in SRC member, boring cannot avoid part frange plate and the web of inner shaped steel, requires to penetrate this two-layered steel plates for meeting hole depth.Difficulty of construction is large and impact original structure.
Summary of the invention
For solving the problems of the technologies described above, goal of the invention of the present utility model is the newly-increased beam providing a kind of SRC member, high, easy to operate, the easy to control the quality system of this newly-increased beam security performance, reduction of erection time.
For achieving the above object, the utility model provides following technical scheme: a kind of newly-increased beam of SRC member, described steel reinforced concrete combined member comprises the first shaped steel, the first reinforcing bar, the first stirrup and the first concrete, described first shaped steel is positioned at centre, described first steel-bar arrangement in the outside of described first shaped steel and with the equidirectional extension of described first shaped steel, described first stirrup is around the outside of colligation in described first reinforcing bar, described first concreting is on described first shaped steel, the first reinforcing bar and the first stirrup
Described SRC member is provided with reinforces position, described reinforcing position arranges the first concrete chisel removal section, first shaped steel section frange plate lateral surface of the first stirrup section of described first stirrup, the first lengths of rebar of the first reinforcing bar and the first shaped steel is exposed to described first concrete chisel removal section, described first lengths of rebar is provided with Cutting clearance A, described first stirrup section is provided with Cutting clearance B, and described Cutting clearance A and Cutting clearance B forms the weld pass leading to described first shaped steel section frange plate lateral surface;
Described newly-increased beam comprises corbel type second shaped steel, second reinforcing bar, second stirrup and the second concrete, the cross section of described second shaped steel and described weld pass matches, the first end of described second shaped steel is placed in described weld pass, end face and the described first shaped steel section frange plate lateral surface of the first end of described second shaped steel are welded to connect, the lateral surface of the first end of described second shaped steel is welded to connect with the section of described first lengths of rebar and the section of the first stirrup section respectively, described second reinforcement welding welds on the frange plate lateral surface and/or medial surface of described second shaped steel, described second reinforcing bar and the equidirectional extension of described second shaped steel and its free end stretch out the second end of described second shaped steel, described second stirrup is around the outside of colligation in described second reinforcing bar, described second concreting is in described second shaped steel, on second reinforcing bar and the second stirrup.
Further technical scheme, the height of described second shaped steel is greater than 70% of the height of described newly-increased beam.
Further technical scheme, described second shaped steel adopts groove penetration to weld respectively with between described first shaped steel section, the first lengths of rebar and the first stirrup section.
Further technical scheme, described first concrete chisel removal section is coated with and is brushed with grout layer, described second concrete is combined with described grout layer and connects.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1, security performance improves, Second-Type steel corbel is welded on the first shaped steel section frange plate lateral surface of the first shaped steel, be different from traditional bar planting method, this engineering method does not need original building structural deterioration without the need to boring, the upper and lower side of the second shaped steel is welded with tension compressive reinforcement respectively and combines with concreting, form an entirety, second shaped steel power transmission concisely reliably both can bear the moment of flexure transmitted by newly-increased beam, the second shaped steel can be regarded again as the stirrup of setting continuously to bear Partial Shear;
2, easy to operate, traditional bar planting needs boring to certain depth, owing to there is frange plate and web in former SRC member, cannot avoid during bar planting.Drilling operation difficulty is large, and makes the cross section loss causing part in web due to boring, and the second shaped steel directly welds not to be needed to destroy original structure, only need cut part first layer of concrete and just can weld during construction;
3, system easy to control the quality, traditional bar planting need to the quality of anchoring adhesive, requirement is done in the degree of depth of bar planting boring and aperture etc., these hidden in inside unmanageable project relationship to the safety of structure, this law only needs to control well weldquality when constructing, carry out crank detection test, weldquality is qualified just can do next step operation;
4, the reduction of erection time, traditional bar planting glue carries out pull-out test after needing the curing conservation of more than 72 hours, determine that next process can be carried out in the qualified rear of rebar-planting quality, the second shaped steel welding procedure just can carry out crank detection test after completing weld seam cooling, carries out next process after up-to-standard.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of existing SRC member;
Fig. 2 steel reinforced concrete installed position disclosed in the utility model cuts the connection diagram with newly-increased beam after concrete.
Wherein, the 1, first i shaped steel; 11, the frange plate lateral surface of the first shaped steel section; 2, the first reinforcing bar; 21, the first lengths of rebar; 3, the first stirrup; 31, the first stirrup section; 4, the first concrete; 5, the second i shaped steel; 6, the second reinforcing bar; 7, the second stirrup.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
See Fig. 1 and Fig. 2, as shown in legend wherein, a kind of corbel type reinforcement means of SRC member, above-mentioned steel reinforced concrete combined member comprises the first i shaped steel 1, first reinforcing bar 2, first stirrup 3 and the first concrete 4, first i shaped steel 1 is positioned at centre, first reinforcing bar 2 be arranged at the first i shaped steel 1 outside and with the equidirectional extension of the first i shaped steel 1, first stirrup 3 is around the outside of colligation in the first reinforcing bar 2, first concrete 4 is built in the first i shaped steel 1, on first reinforcing bar 2 and the first stirrup 3, above-mentioned corbel type reinforcement means comprises the steps:
First step, determines the reinforcing position of above-mentioned steel reinforced concrete combined member;
Conscientiously should read design working drawing before construction, by design drawing, cut control line in the newly-increased beam position measuring of SRC member, after having cut, at the first i shaped steel 1 surperficial measuring Plate Welding position control line.
Second step, cut the layer of concrete of first concrete 4 in the outside of above-mentioned reinforcing position, expose the first lengths of rebar 21 of the first stirrup section 31, first reinforcing bar 2 of the first stirrup 3 of the inner side of above-mentioned reinforcing position and the first shaped steel section frange plate lateral surface 11 of the first i shaped steel 1;
Cut the outside concrete cover of above-mentioned SRC member, reject surrounding and loosen concrete.
Third step, cuts off the first stirrup section 31 and the first lengths of rebar 21 exposed, and makes the open gap of the open gap of the first stirrup section 31 and the first lengths of rebar 21 form the weld pass leading to the first shaped steel section frange plate lateral surface 11;
The excision first stirrup section 31 at web position place and first lengths of rebar 21 at frange plate place
4th step, choose corbel type second i shaped steel 5 that cross section and above-mentioned weld pass match, second i shaped steel 5 is inserted above-mentioned weld pass, the end face of the first end of the second i shaped steel 5 and the first shaped steel section frange plate lateral surface 11 are welded to connect, the end face of the frange plate lateral surface of the first end of the second i shaped steel 5 and the first lengths of rebar 21 is welded to connect, the section of the web of the first end of the second i shaped steel 5 and the first stirrup section 31 is welded to connect;
The welding job of the second shaped steel 5 should by obtaining corresponding qualification and the welder having effective welder qualification bears; During welding, weld seam should be straight, and weld ripples should be even, without rosin joint, solder skip;
Weld complete, welder answers the slag on trimming surface and the splash of both sides, check weld appearance quality, the web of the welding of the second i shaped steel 5 and the first shaped steel section frange plate lateral surface 11, the second i shaped steel 5 and the first stirrup section 31 weld and the frange plate of the second i shaped steel 5 all adopts the molten weld seam of groove with the first welding of firm muscle section 21, flaw detection must meet existing national standards;
Corbel type second i shaped steel 5 installs the axis direction and location, position that specify in strict accordance with drawing, and the vertical missing of web controls in minimum zone;
5th step, on the frange plate lateral surface and/or medial surface of the second i shaped steel 5, welding and the second reinforcing bar 6 of the equidirectional extension of the second i shaped steel 5, make the free end of the second reinforcing bar 6 stretch out the second end of the second i shaped steel 5;
Second reinforcing bar 6 of pressurized, advancing side is welded on the frange plate up and down of the second i shaped steel 5 respectively, according to the requirement of lap length, with electric arc welding;
6th step, at the outer ring of the second reinforcing bar 6 around colligation second stirrup 7;
7th step, increases beam forms newly in the arranged outside of the second stirrup 7, and chamber is built in above-mentioned newly-increased beam forms besieged city;
8th step, builds the second concrete (depending on not going out in figure) to above-mentioned building in chamber;
9th step, after above-mentioned second concrete setting, removes above-mentioned newly-increased beam forms, obtains the newly-increased beam reinforced the connection in SRC member.
The bracket stress performance that above-mentioned second i shaped steel 5 makes is good, and Path of Force Transfer is clear and definite, and the vertical force the second i shaped steel 5 local compression being produced by welding this reliable fashion obtains reliable delivery.
Reliable in order to ensure the welding of welding in the 4th step, seam inspection test procedure is also provided with between 4th step and the 5th step, after the weld seam between the second i shaped steel 5 and the first shaped steel section frange plate lateral surface 11, first lengths of rebar 21 and the first stirrup section 31 cools, check the quality of above-mentioned weld seam, weldquality is qualified can enter next step, and the second i shaped steel 5 adopts groove penetration to weld respectively with between the section of the first shaped steel section frange plate lateral surface 11, first lengths of rebar 21 and the section of the first stirrup section 31.
In order to ensure the first layer of concrete 4 and the second layer of concrete slitless connection, first brushing grout layer on face is cut at the first concrete 4, then on the second i shaped steel 5, second reinforcing bar 6 and the second stirrup 7, build the second concrete, the second concrete is fully combined with above-mentioned grout layer.
In order to ensure the degree of packing of newly-increased beam, in the 8th step, in casting process, building the second concrete, the concrete of tamping second on one side, its compactness will be ensured when building and prevent cracking.
In order to easy construction, not easily vibrating, place's vibration staying smashes mouth, in 7th step, being reserved with first to vibrate hole (depending on not going out in figure) in the junction of the first shaped steel section frange plate lateral surface 11 and the second i shaped steel 5, being reserved with second in the downside of the lower wings listrium of the second i shaped steel 5 and vibrating hole (depending on not going out in figure).
Introduce a kind of newly-increased beam of SRC member below, above-mentioned steel reinforced concrete combined member comprises the first i shaped steel 1, first reinforcing bar 2, first stirrup 3 and the first concrete 4, first i shaped steel 1 is positioned at centre, first reinforcing bar 2 be arranged at the first i shaped steel 1 outside and with the equidirectional extension of the first i shaped steel 1, first stirrup 3 is around the outside of colligation in the first reinforcing bar 2, first concrete 4 is built on the first i shaped steel 1, first reinforcing bar 2 and the first stirrup 3
Above-mentioned SRC member is provided with reinforces position, this reinforcing position arranges the first concrete chisel removal section, first lengths of rebar 21 of the first stirrup section 31, first reinforcing bar 2 of the first stirrup 3 and the first shaped steel section frange plate lateral surface 11 of the first i shaped steel 1 are exposed to above-mentioned first concrete chisel removal section, first lengths of rebar 21 is provided with Cutting clearance A, first stirrup section 31 is provided with Cutting clearance B, and above-mentioned Cutting clearance A and Cutting clearance B forms the weld pass leading to the first shaped steel section frange plate lateral surface 11;
Above-mentioned newly-increased beam comprises corbel type second i shaped steel 5, second reinforcing bar 6, second stirrup 7 and the second concrete, second i shaped steel 5 matches with the cross section of above-mentioned weld pass, the first end of the second i shaped steel 5 is placed in above-mentioned weld pass, end face and the first shaped steel section frange plate lateral surface 11 of the first end of the second i shaped steel 5 are welded to connect, the frange plate lateral surface of the first end of the second i shaped steel 5 and the section of the first lengths of rebar 21 are welded to connect, the web of the first end of the second i shaped steel 5 and the section of the first stirrup section 31 are welded to connect, on the frange plate lateral surface that second reinforcing bar 6 is welded in the second i shaped steel 5 and/or medial surface, second reinforcing bar 6 and the equidirectional extension of the second i shaped steel 5 and its free end stretch out the second end of the second i shaped steel 5, second stirrup 7 is around the outside of colligation in the second reinforcing bar 6, second concreting is in the second i shaped steel 5, on second reinforcing bar 6 and the second stirrup 7.
The height of the second i shaped steel 5 is greater than 70% of the height of above-mentioned newly-increased beam.
It is below the contrast of traditional embedding re-bar technique and newly-increased beam reinforcement means of the present utility model and structure
| contrast project | sRC member increases beam bar planting reinforcing technique newly | sRC member increases beam bracket reinforcing technique newly |
| economic benefit | steel planting on steel column, need penetrate steel plate, expends manually more | this method is constructed, and saves artificial and duration |
| environmental protection, energy-saving benefit | embedding re-bar technique needs bore operation on original structure, and airborne dust, noise are larger. | only need cut bracket position topping.Cut operation less, airborne dust, noise are less |
| social benefit | boring need cause cross section to lose to steel column web | bracket only need weld prototype steel column without impact |
Embodiment two
All the other are identical with described embodiment one, and difference is, above-mentioned first i shaped steel replaces with the first H profile steel, and above-mentioned second i shaped steel replaces with the second H profile steel.
Be more than the description to the utility model embodiment, by the above-mentioned explanation to the disclosed embodiments, professional and technical personnel in the field realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. the newly-increased beam of a SRC member, described steel reinforced concrete combined member comprises the first shaped steel, the first reinforcing bar, the first stirrup and the first concrete, described first shaped steel is positioned at centre, described first steel-bar arrangement in the outside of described first shaped steel and with the equidirectional extension of described first shaped steel, described first stirrup is around the outside of colligation in described first reinforcing bar, described first concreting, on described first shaped steel, the first reinforcing bar and the first stirrup, is characterized in that:
Described SRC member is provided with reinforces position, described reinforcing position arranges the first concrete chisel removal section, first shaped steel section frange plate lateral surface of the first stirrup section of described first stirrup, the first lengths of rebar of the first reinforcing bar and the first shaped steel is exposed to described first concrete chisel removal section, described first lengths of rebar is provided with Cutting clearance A, described first stirrup section is provided with Cutting clearance B, and described Cutting clearance A and Cutting clearance B forms the weld pass leading to described first shaped steel section frange plate lateral surface;
Described newly-increased beam comprises corbel type second shaped steel, second reinforcing bar, second stirrup and the second concrete, the cross section of described second shaped steel and described weld pass matches, the first end of described second shaped steel is placed in described weld pass, end face and the described first shaped steel section frange plate lateral surface of the first end of described second shaped steel are welded to connect, the lateral surface of the first end of described second shaped steel is welded to connect with the section of described first lengths of rebar and the section of the first stirrup section respectively, described second reinforcement welding welds on the frange plate lateral surface and/or medial surface of described second shaped steel, described second reinforcing bar and the equidirectional extension of described second shaped steel and its free end stretch out the second end of described second shaped steel, described second stirrup is around the outside of colligation in described second reinforcing bar, described second concreting is in described second shaped steel, on second reinforcing bar and the second stirrup.
2. newly-increased beam according to claim 1, is characterized in that, the height of described second shaped steel is greater than 70% of the height of described newly-increased beam.
3. newly-increased beam according to claim 1, is characterized in that, described second shaped steel adopts groove penetration to weld respectively with between described first shaped steel section, the first lengths of rebar and the first stirrup section.
4. newly-increased beam according to claim 1, is characterized in that, described first concrete chisel removal section is coated with and is brushed with grout layer, described second concrete is combined with described grout layer and connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576957.6U CN204139644U (en) | 2014-10-08 | 2014-10-08 | A kind of newly-increased beam of SRC member |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420576957.6U CN204139644U (en) | 2014-10-08 | 2014-10-08 | A kind of newly-increased beam of SRC member |
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| CN204139644U true CN204139644U (en) | 2015-02-04 |
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| CN201420576957.6U Expired - Fee Related CN204139644U (en) | 2014-10-08 | 2014-10-08 | A kind of newly-increased beam of SRC member |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234443A (en) * | 2014-10-08 | 2014-12-24 | 苏州中固建筑科技有限公司 | Bracket type reinforcing method for steel-reinforced concrete member and additionally-arranged beam member |
| CN109812045A (en) * | 2019-03-19 | 2019-05-28 | 中建四局第一建筑工程有限公司 | After a kind of tool-type plus structural slab fast joint structure and method |
-
2014
- 2014-10-08 CN CN201420576957.6U patent/CN204139644U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234443A (en) * | 2014-10-08 | 2014-12-24 | 苏州中固建筑科技有限公司 | Bracket type reinforcing method for steel-reinforced concrete member and additionally-arranged beam member |
| CN104234443B (en) * | 2014-10-08 | 2016-05-25 | 苏州中固建筑科技有限公司 | A kind of corbel type reinforcement means of steel reinforced concrete member and newly-increased beam |
| CN109812045A (en) * | 2019-03-19 | 2019-05-28 | 中建四局第一建筑工程有限公司 | After a kind of tool-type plus structural slab fast joint structure and method |
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| 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: 20150204 Termination date: 20161008 |