CN201424706Y - Novel connecting structure of steel secondary beam and concrete main beam - Google Patents
Novel connecting structure of steel secondary beam and concrete main beam Download PDFInfo
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- CN201424706Y CN201424706Y CN2009200560690U CN200920056069U CN201424706Y CN 201424706 Y CN201424706 Y CN 201424706Y CN 2009200560690 U CN2009200560690 U CN 2009200560690U CN 200920056069 U CN200920056069 U CN 200920056069U CN 201424706 Y CN201424706 Y CN 201424706Y
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- steel
- secondary beam
- concrete
- steel secondary
- concrete girder
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Abstract
The utility model discloses a novel connecting structure of a steel secondary beam and a concrete main beam, which comprises a concrete main beam (1) and a steel secondary beam (2); the characteristics of the utility model are as follows: the end part of the steel beam (2) is directly stretched into the concrete main beam (1) and is riveted with the concrete main beam (1); an upper flange plate (2-2) of an end part (2-1) of the steel secondary beam (2) is cut out, the place where the flange plate (2-2) is cut off is welded with a plurality of steel bars (3); the plurality of steel bars (3) arebent into the concrete main beam (1) to rivet the reinforcing steel bars of the concrete main beam (1) or pass through the concrete main beam (1) to rivet with each other. The novel connecting structure of the steel secondary beam and the concrete main beam cancels a concrete bearing ear, therefore, the bearing ear reinforcing steel bar is not need to bind and the bearing ear concrete is not needto pour, and a bearing moulding plate is not need to support, and bearing ear embedded pieces for bearing the steel beam is not needed; therefore, the moulding plates, the reinforcing steel bars, andthe embedded pieces are saved; the concrete beam and the floorslab are poured at the same time, therefore, the construction technology is simplified, the cost is reduced, and the time is saved. The utility model is widely applied to the joint connection of various frame concrete beams and the steel secondary beams.
Description
Technical field
The new Joining Structure of novel a kind of steel secondary beam of the utility model and concrete girder is applicable to the connected node of framework for girder and steel secondary beam (crossbeam).Belong to construction engineering technical field
Background technology
At present, in the floor structure of design of civil, being generally the cast in place reinforced bar concrete beam-slab structure, also is reinforced concrete beam and plate integrated poured concrete after formwork, assembling reinforcement.But in industrial construction, consider, change the concrete secondary beam into the steel secondary beam, the floor concrete is divided into two-step pouring from aspects such as construction period, floor structure headroom.Operation is first construction reinforced bar concrete frame (beam, a post), chooses ear (one-sided or bilateral) in the setting of Vierendeel girder side, and the concrete of concrete frame beam waters absolute altitude at the bottom of the plate, after the concrete strength for the treatment of the concrete beam reaches requirement, again by designing requirement lifting steel secondary beam.The girder steel freely-supported is chosen on the ear in the concrete beam, is made bed die at girder steel face shop profiled sheet, then the colligation floor bar, build the plate concrete.This structure and job practices, though reinforced concrete structure improves to some extent entirely, but still have following aspect shortcoming: (1) working procedure aspect is more loaded down with trivial details, reinforced concrete beam is chosen the elongated ear of choosing, and chooses ear face embedded part, and the ear reinforcing bar is chosen in increase decking, colligation in the construction, very inconvenient, consumption material consuming time.(2) structure stress is undesirable, and steel secondary beam freely-supported is chosen on the ear in the concrete beam, and because of deck-molding is little with the concrete secondary beam, the span amount of deflection is bigger; The bearing place is a freely-supported.Actual floor is a monobloc cast, can not be pure freely-supported at concrete girder place, still can bear the part hogging moment.So just, the tensile stress commentaries on classics that the beam-ends hogging moment is produced is born by plate.(3) elongated syndeton (node) design of choosing ear support steel secondary beam of concrete girder, not attractive in appearance on handling, in the use, choose at the bottom of ear face and the floor plates between space dust stratification dirt.
The utility model content
The purpose of this utility model, be for the steel secondary beam that overcomes prior art and concrete girder (syndeton (node) is connected and has that construction is complicated, the unfavorable shortcoming of structure stress, provide a kind of stressed rationally, working procedure is simple, efficient is high steel secondary beam and the new Joining Structure of concrete girder.
The purpose of this utility model can reach by taking following technical scheme:
The new Joining Structure of steel secondary beam and concrete girder comprises concrete girder and steel secondary beam, and its design feature is: described steel secondary beam directly stretches in the concrete girder and with the concrete girder and is anchored; The end of steel secondary beam is cut off top flange plate, is welded with some steel bars cutting away the frange plate place; Described steel bar bend in the concrete girder reinforcing bar with the concrete girder and is anchored or passes concrete girder 1 and be anchored mutually.
The purpose of this utility model also can reach by taking following technical scheme:
A kind of embodiment of the present utility model is: the length that the steel secondary beam directly stretches into the concrete girder can be 150mm～200mm.
A kind of embodiment of the present utility model is: the web both sides at the steel secondary beam can be provided with stiffening rib.
A kind of embodiment of the present utility model is: enter concrete girder inside at the steel secondary beam end reinforcing rib that stretches into the concrete girder, the junction of concrete girder and steel secondary beam can be provided with through hole, and the reinforcing rib on the web of the size of this through hole and steel secondary beam coincide.Pass for the reinforcing rib on the web that is positioned at the steel secondary beam.
A kind of embodiment of the present utility model is: according to the structure requirement, the spacing of the reinforcing rib on the web of described steel secondary beam (waist muscle) can be 200mm, so be generally 1～2, maximum three at the waist muscle that is provided with of steel time web.When the height of steel secondary beam is very big, when its waist muscle was more than three in the deck-molding scope, then the 4th was arranged in below the steel secondary beam bottom flange, thereby avoids girder steel.
A kind of embodiment of the present utility model is: the concrete girder stirrup that will be positioned at the bottom wing listrium place of steel secondary beam cuts off and bends up the bottom wing listrium place that is welded in the steel secondary beam.
Adopt utility model to have following beneficial effect:
Adopt utility model steel secondary beam to be connected syndeton (node) with the concrete girder, have following beneficial effect:
1, simplified syndeton (node) structure, construction party makes, thereby increases work efficiency.
2, syndeton (node) structure is stressed, theoretical calculate with the actual loading principle more approaching, thereby safer in structure, actual use more convenient.
3, economic effect aspect, new syndeton (node) has been cancelled concrete and has been chosen ear, does not also just need colligation to choose the ear reinforcing bar, water and choose the ear concrete, need not prop up and choose template, the supporting girder steel choose the ear embedded part, thereby save template, reinforcing bar, embedded part, concrete beam and floor colleague build, and have also just simplified construction technology, reduce cost, save time.
4, ear is chosen usually because of having cancelled concrete in profile impression aspect, and girder steel is directly stretched into the concrete girder, the space dust stratification dirt between also having avoided choosing at the bottom of ear end face and the floor plates.Outward appearance is succinctly attractive in appearance, is subjected to the welcome of unit in charge of construction and applying unit, obtains the better economic social effect.
Description of drawings
Fig. 1 is the structural representation of the utility model specific embodiment 1.
Fig. 2 is the perspective view of steel secondary beam among Fig. 1.
Fig. 3 is the structural representation of the utility model specific embodiment 2.
Fig. 4 be in the prior art steel secondary beam and concrete girder be connected syndeton (node) structural representation.
Fig. 5 is the perspective view of steel secondary beam among Fig. 4.
The specific embodiment
Specific embodiment 1:
Fig. 1 and Fig. 2 constitute specific embodiment of the utility model 1.
See figures.1.and.2, present embodiment comprises concrete girder 1 and steel secondary beam 2, and described steel secondary beam 2 directly stretches in the concrete girder 1 and with the concrete girder and is anchored; The end 2-1 of steel secondary beam 2 is cut off top flange plate 2-2, is welded with some steel bars 3 cutting away the frange plate place; Described steel bar 3 passes concrete girder 1 and is anchored mutually, makes steel bar 3 undertake the tension of steel secondary beam 2 top flange plate 2-2; For strengthening steel secondary beam 2 shear strengths, at the stiffening rib of burn-oning near the web 2-4 both sides of concrete girder 1 side place steel secondary beam 2.Above concrete girder 1 and steel secondary beam 2, be provided with floor 4.
In the present embodiment 1, steel secondary beam 2 is positioned at the both sides of concrete girder 1 and enters concrete girder 1 from both sides, concrete girder 1 be the middle concrete beam of frame construction, then constitute in the middle of the concrete seat, the end 2-1 of joist steel secondary beam 2 is cut off top flange plate 2-2, is welded with one, two or three steel bars 3 cutting away the frange plate place; Described steel bar 3 passes concrete girder 1 and is anchored mutually or welding, makes the steel secondary beam 2 of both sides fixedly connected, and steel bar 3 is undertaken the tension of steel secondary beam 2 top flange plate 2-2; For strengthening steel secondary beam 2 shear strengths.Described steel bar 3 can be made of reinforcing bar or steel plate bar.Steel secondary beam 2 is adopted " worker " word steel and is constituted.Steel secondary beam 2 constitutes crossbeam, assisting as framework concrete girder.
Stretch into the steel time beam end 2-1 of concrete girder 1 and the reinforcing rib of concrete girder 1 and concern problem, because the upper surface and the bottom reinforcing rib of concrete girder 1, steel secondary beam 2 avoids not constituting influence; Therefore, the waist muscle of steel secondary beam 2 is discussed mainly, is provided with through hole at concrete girder 1 and supplies the waist muscle of the web 2-4 of steel secondary beam 2 to pass; According to the structure requirement, the about 200mm of described waist muscle spacing is so the waist muscle that is provided with of steel time web 2-4 is generally 1～2, maximum three.When the height of steel secondary beam 2 is very big, when its waist muscle was more than three in the deck-molding scope, then the 4th was arranged in below the steel secondary beam bottom wing listrium 2-3, thereby avoids girder steel.Stirrup in the bottom wing listrium 2-3 of steel secondary beam 2 width range is handled, because of general steel secondary beam 2 keeps clear of framework concrete girder bearing, concrete girder stirrup spacing is generally 200mm, and steel secondary beam bottom wing listrium 2-3 width is no more than 350mm, so influenced stirrup is generally 1～2.Treating method is influenced stirrup to be cut off to bend up be welded in steel secondary beam bottom wing listrium 2-3.Few because of the welding muscle, more easily handle in the construction.
With reference to Fig. 4 and Fig. 5, when floor adopted the structural shape of reinforced concrete frame, steel secondary beam and Cast-in-place concrete floor, steel secondary beam 5 freely-supporteds that prior art is used were chosen ear 6 syndetons (node) pattern in the concrete beam and have just been demonstrated many shortcomings.Along with increasing of engineering design project, raising to duration, quality and appearance requirement in the engineering construction, though strengthen management, improve working procedure and playing important effect aspect the product quality improving, do at the design aspect of structure construction and improve that to innovate also be very important and effective method.Thereby select for use new syndeton (node) structural shape to replace this traditional syndeton syndeton (node) just to seem necessary.This new syndeton syndeton (node) pattern is must more traditional syndeton (node) pattern stressed rationally, and working procedure is simplified, and can increase work efficiency, and does not increase cost economically, and is more attractive in appearance in appearance.
Specific embodiment 2:
Fig. 3 constitutes the specific embodiment 2 of phase utility model.
With reference to Fig. 3, the characteristics of present embodiment are: steel secondary beam 2 be positioned at concrete girder 1 a side, and enter concrete girder 1 from the side, concrete girder 1 is the limit concrete beam of frame construction, then formation is held the concrete seat, described steel bar 3 bend in the concrete girder 1 and anchor of the reinforcing bar of concrete girder or welding, makes steel bar 3 undertake the tension of steel secondary beam 2 top flange plate 2-2.All the other are with specific embodiment 1.
This usefulness is novel to be in the investigation by a large amount of engineering design practices and construction mode of occupation, syndeton (node) pattern of choosing ear in the concrete beam at traditional steel secondary beam freely-supported exists many deficiencies and shortcoming, and change steel secondary beam 2 of making and the syndeton between the concrete girder 1 have the advantage of following aspect:
1) the stressed aspect of syndeton (node)
As Fig. 4, shown in Figure 5, adopt traditional syndeton (node) structure, steel secondary beam 5 freely-supporteds need be chosen on the ear 6 in concrete, then moment of flexure can not be born in the end of steel secondary beam 5, and designing and calculating steel secondary beam calculates by pure freely-supported, and like this, steel secondary beam 5 cross sections of selecting for use are all bigger.Because be simply supported beam, help its mid-span deflection also bigger.And concrete floor plates 7 can not disconnect the release moment of flexure at concrete frame beam 8 places, but water concrete with concrete back part integral body, the girder steel end just is not pure freely-supported like this, certainly lead to some moments of flexure, bear by this plate face reinforcing bar of striding concrete Liang Chu and the tensile stress that moment of flexure produces at the edge is inevitable, thereby, for satisfying the tensile stress that shifts up by freely-supported steel secondary beam, the negative muscle of plate face needs suitably to strengthen, otherwise easily produces few muscle crack.
Adopt syndeton of the present utility model (node), steel secondary beam 2 is directly stretched into 1 supporting of concrete girder, concrete frame beam load is not influenced, the top flange of steel secondary beam 2 is welded with steel bar (or anchor is in concrete beam the inside).Like this, steel secondary beam, concrete girder just are not pure freely-supported stress structure, still can bear the part moment of flexure, approach the actual loading situation, at identical load, older syndeton (node) way during identical span, the girder steel height can reduce, and mid-span deflection also reduces, and force structure is more reasonable.
2) structure construction aspect
After adopting syndeton of the present utility model (node) structure, concrete girder 1 is chosen ear because of not doing in the construction, and it is many that structural section is simple, does not also need colligation to choose the ear reinforcing bar, chooses the auricular branch mould, chooses ear face upper support girder steel embedded part, and working procedure has been simplified many.Increase the anchor plate bar welding of girder steel top flange, indivedual stirrup welding, but reduce the welding of steel secondary beam is installed, so the welding capacity that increases is less, influence is little in the construction, and adopt new syndeton (node) afterframe girder and floor monobloc cast, need not separate secondary and build, thereby increase work efficiency.
3) material usage aspect
After adopting syndeton of the present utility model (node) structure, increase be steel secondary beam top flange anchor plate bar, but what reduce is the reinforcing bar that the concrete beam is chosen ear, embedded part and concrete amount.In fact the engineering material expense is carried flat or is slightly saved, but formwork, assembling reinforcement are simple, and comprehensive cost reduces.
4) outward appearance aspect
After adopting syndeton of the present utility model (node), cancelled the elongated ear of choosing of concrete girder, succinctly attractive in appearance in appearance.
The formula that stretches into syndeton (node) design between steel secondary beam 2 described in the utility model and the concrete girder 1 is to choose auricular branch in tradition to make on the method basis, knows through engineering, and investigation, integrated structure mechanical analysis research improves and gets.Utility model syndeton (node) at first designs in Guangdong Pola China Utilities Electric Co., Ltd., and the Mei County lotus arboretum power plant second phase, (2 * 300MW) engineering main buildings completed for use.Coming into operation is best testing to design theory.Back situation result proves from coming into operation: syndeton (node) design is successful, satisfy the design instructions for use fully, thereby in the engineering design afterwards, as Guangdong China Yangxi power plant first phase (2 * 600MW) engineering main buildings, Ping Hai power plant, Guangdong (2 * 1000MW) engineering main buildings, and Liaoning red nuclear power station conventional along the river island structure all adopts, and this practical syndeton (node) structure will continue later on to use.
Claims (6)
1, the new Joining Structure of steel secondary beam and concrete girder comprises concrete girder (1) and steel secondary beam (2), it is characterized in that: the end of described steel secondary beam (2) is directly stretched in the concrete girder (1) and with concrete girder (1) and is anchored; The end (2-1) of steel secondary beam (2) is cut off top flange plate (2-2), is welded with some steel bars (3) cutting away the frange plate place; Described steel bar (3) bend in the concrete girder (1) and the reinforcing bar of concrete girder is anchored or passes concrete girder (1) anchor mutually.
2, the new Joining Structure of steel secondary beam according to claim 1 and concrete girder is characterized in that: the length that steel secondary beam (2) stretches into concrete girder (1) is 150mm～200mm.
3, the new Joining Structure of steel secondary beam according to claim 1 and 2 and concrete girder is characterized in that: web (2-4) both sides in steel secondary beam (2) are provided with the muscle of putting more energy into.
4, the new Joining Structure of steel secondary beam according to claim 3 and concrete girder, it is characterized in that: enter concrete girder (1) inside at the steel that stretches into concrete girder (1) time beam end (2-1) reinforcing rib, concrete girder (1) is provided with through hole with the junction of steel secondary beam (2), and the reinforcing rib on the web (2-4) of the size of this through hole and steel secondary beam (2) coincide.
5, the new Joining Structure of steel secondary beam according to claim 3 and concrete girder is characterized in that: the spacing of the reinforcing rib on the web (2-4) of described steel secondary beam (2) is 200mm, and the waist muscle that is provided with at steel time web (2-4) is 1～4.
6, the new Joining Structure of steel secondary beam according to claim 5 and concrete girder is characterized in that: will be positioned at concrete girder stirrup that the bottom wing listrium (2-3) of steel secondary beam (2) locates and cut off and bend up the bottom wing listrium (2-3) that is welded in steel secondary beam (2) and locate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200560690U CN201424706Y (en) | 2009-05-06 | 2009-05-06 | Novel connecting structure of steel secondary beam and concrete main beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200560690U CN201424706Y (en) | 2009-05-06 | 2009-05-06 | Novel connecting structure of steel secondary beam and concrete main beam |
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| CN201424706Y true CN201424706Y (en) | 2010-03-17 |
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| CN2009200560690U Expired - Fee Related CN201424706Y (en) | 2009-05-06 | 2009-05-06 | Novel connecting structure of steel secondary beam and concrete main beam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133729A (en) * | 2015-08-05 | 2015-12-09 | 北京建工华创科技发展股份有限公司 | Abnormity beam column steel frame with sandwich board and construction method thereof |
| CN108915084A (en) * | 2018-07-26 | 2018-11-30 | 沈阳建筑大学 | A kind of honeycomb type girder and secondary beam steel-frame beam node |
-
2009
- 2009-05-06 CN CN2009200560690U patent/CN201424706Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133729A (en) * | 2015-08-05 | 2015-12-09 | 北京建工华创科技发展股份有限公司 | Abnormity beam column steel frame with sandwich board and construction method thereof |
| CN108915084A (en) * | 2018-07-26 | 2018-11-30 | 沈阳建筑大学 | A kind of honeycomb type girder and secondary beam steel-frame beam node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
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| CP01 | Change in the name or title of a patent holder |
Address after: 510080 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510080 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee before: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address after: 510080 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee after: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE OF CHINA ENERGY ENGINEERING GROUP Co.,Ltd. Address before: 510080 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee before: Guangdong Electric Power Design Institute |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510670 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. Address before: 510080 No. 846 Dongfeng East Road, Guangdong, Guangzhou Patentee before: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE Co.,Ltd. |
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| 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: 20100317 Termination date: 20170506 |