CN1298945C - Unshored self supporting cast-in-situ concrete structure - Google Patents
Unshored self supporting cast-in-situ concrete structure Download PDFInfo
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- CN1298945C CN1298945C CNB2004100135541A CN200410013554A CN1298945C CN 1298945 C CN1298945 C CN 1298945C CN B2004100135541 A CNB2004100135541 A CN B2004100135541A CN 200410013554 A CN200410013554 A CN 200410013554A CN 1298945 C CN1298945 C CN 1298945C
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Abstract
The present invention discloses an unshored self supporting cast-in-situ concrete structure relating to a self-supporting structure without support in the civil engineering field. At present, the demand of support and mould plate are high, and the construction degree of difficulty is big in the construction of the layer-increasing bottom layer of a building structure and the construction of the building structure of a huge concrete frame. A built-in steel girder-concrete composite beam (1) of the present invention comprises steel girders (1-1), steel bottom moulds (1-2), side moulds (1-3) and lacing reinforced bars (1-4), wherein lower chords (1-1-1) of both sides of each steel girders (1-1) are respectively welded with a set of lacing reinforced bars (1-4), the two sets of lacing reinforced bars (1-4) are welded with the steel bottom moulds (1-2), and the side moulds (1-3) and the steel bottom moulds (1-2) are fixedly connected. The whole load of the structure of the present invention is transferred to a frame column ultimately. The number of the required support can be decreased in the construction stage in order to avoid abuses produced by that the self weight of the structure, the construction load, etc. are directly transferred to the lower layer roof. The material is saved, the support and mould plate consumption is low, degree of difficulty of the construction is reduced, and construction speed is high, and therefore, the present invention is favorable for popularization and application.
Description
Technical field: a kind of self-supporting structure that need not to support at the concrete frame house that the present invention relates to field of civil engineering.
Background technology: at present: 1. when adopting overcoat concrete frame structure or frame supported shear wall structure to increase layer, the roof system in former house is difficult to bear deadweight, template load and the working load of newly-increased floor of construction stage.Conventional method is to adopt steel truss to hang reversed beam to enclose the holder construction technology, and forming at concrete structure becomes waste product after the used steel truss in back is cut, and wastes and lose huge; 2. huge concrete frame building structure is made up of mega-frame and minor structure two parts.From simplifying the angle of construction, reduction cost, the mega-frame of should constructing earlier, the minor structure of constructing again.How to realize that huge concrete frame structure superstructure (containing Liang Heban) does not have the design and construction that supports self-supporting, it is the key that can giant frame structure be built smoothly, because the floor height of every layer of mega-frame reaches tens meters to tens meters, if it is provided with support and template according to a conventional method, the template consumption is big, difficulty of construction is big, and speed of application is slow, the construction investment height.
Summary of the invention: the object of the present invention is to provide a kind of nothing that in work progress, need not to support to support the self-supporting cast-in-place concrete structure, the present invention includes two ends and be fixed on steel truss on the frame column, it with built-in steel truss-concrete combination beam as the construction and use in girder, described built-in steel truss-concrete combination beam 1 comprises steel truss 1-1, steel bed die 1-2, side form 1-3 and socket reinforcing bar 1-4, be welded with one group respectively on the lower chord 1-1-1 of described steel truss 1-1 both sides and socket reinforcing bar 1-4, socket at two groups and to be welded with steel bed die 1-2 on the reinforcing bar 1-4, described side form 1-3 and steel bed die 1-2 Joint.The present invention is arranged on steel truss integral body on the frame column, by socketing reinforcing bar, structures such as steel bed die make the weight concrete of building pass to steel truss effectively, the steel concrete associating peripheral with it of the built-in steel-case of secondary beam is stressed, connected node structure by secondary beam and girder makes whole load actions of secondary beam in being delivered to behind the girder on the frame column, whole loads of structure of the present invention finally are delivered on the frame column by steel truss-concrete combination beam, in the construction stage quantity of required support is significantly reduced, avoided dead load, working load etc. are directly passed to the drawback that lower floor's roof system is produced, and have saved material; Steel truss of the present invention uses in work progress, after construction finishes, lower chord serves as the longitudinal stress reinforcing bar of concrete beam on the operational phase steel truss, become waste product owing to no longer steel truss is cut down, so it has avoided waste and loss again when improving the concrete beam supporting capacity; Support of the present invention, template consumption are few, and difficulty of construction reduces, and the investment of engineering reduces, and speed of application is fast, is beneficial to apply.
Description of drawings: Fig. 1 steel truss-concrete combination beam cross-sectional view, Fig. 2 is prestressed steel truss-concrete combination beam cross-sectional view, Fig. 3 is steel case-concrete combination beam cross-sectional view, Fig. 4 is the steel truss 1-1 of built-in steel truss-concrete combination beam 1 and the steel case 2-1 syndeton schematic diagram of built-in steel-case-concrete combination beam 2, Fig. 5 is the syndeton schematic diagram of steel truss 1-1, steel case 2-1 and main stupefied 3, and Fig. 6 is main stupefied 3 cross-sectional configuration schematic diagram.
The specific embodiment one: present embodiment comprises that two ends are fixed on the steel truss on the frame column, in construction and use, with built-in steel truss-concrete combination beam as the construction and use in girder, described built-in steel truss-concrete combination beam 1 comprises steel truss 1-1, steel bed die 1-2, side form 1-3 and socket reinforcing bar 1-4, be welded with one group respectively on the lower chord 1-1-1 of described steel truss 1-1 both sides and socket reinforcing bar 1-4, socket at two groups and to be welded with steel bed die 1-2 on the reinforcing bar 1-4, the described reinforcing bar 1-4 that sockets evenly arranges along steel truss 1-1 length, described side form 1-3 and steel bed die 1-2 Joint.During construction, bear in the work progress concrete deadweight, the longitudinal stress reinforcing bar that serves as concrete beam at the upper chord 1-1-2 and the lower chord 1-1-1 of operational phase steel truss 1 with the steel truss of underlying steel bed die.Steel truss-concrete combination beam is made bed die 1-2 with steel plate, and the lower chord 1-1-1 by steel tie 1-4 and steel truss 1 is welded to connect.Beam side 1-3 adopts common templates.Beam side 1-3 and bed die 1-2 adopt the U-shaped card connection, and beam two side form 1-3 are connected by U-shaped card 1-7 with steel plate band 1-6 at the top.Can guarantee that like this weight concrete of building can pass to steel truss effectively.
The specific embodiment two: what present embodiment and the specific embodiment one were different is, when load and span are big, can adopt prestressed steel truss in the construction stage, can adopt prestressed steel truss one concrete combination beam in operational phase, concrete grammar is for being provided with in the inside of built-in steel truss-concrete combination beam by the presstressed reinforcing steel 1-5 of straight line with by the presstressed reinforcing steel 1-8 of arrangement of curves, thereby form prestressed steel truss-concrete combination beam, presstressed reinforcing steel is provided with along steel truss-concrete combination beam span direction, wherein by the two ends of the presstressed reinforcing steel 1-5 of straight line by riveting backing plate rivet clasp on the lower chord of steel truss, the two ends rivet clasp of presstressed reinforcing steel 1-8 of pressing arrangement of curves is in the end of steel truss-concrete combination beam.
The specific embodiment three: present embodiment is, between adjacent two girders, be welded with built-in steel-case-concrete combination beam 2 as secondary beam, built-in steel-case 2-1 wherein is two channel-section steels that butt welding connects, be welded with one group respectively in the lower end, both sides of built-in steel-case 2-1 and socket reinforcing bar 2-2, be welded with steel bed die 2-3 two groups of lower ends that socket reinforcing bar 2-2, steel bed die 2-3 is connected with side form 2-4 by U-shaped card 2-5.Present embodiment is provided with steel bed die 2-3 under built-in steel-case 2-1, steel case 2-1 bears the weight of its peripheral concrete of construction stage, and is stressed in operational phase steel case 2-1 steel concrete associating peripheral with it.Steel case 2-1 side links to each other with the steel bed die 2-3 of underlying by welding steel tie 2-2, and side form 2-4 adopts common templates.
The welding manner of secondary beam and girder is the connected node structure, promptly in the lateral longitudinal of the steel truss 1-1 of girder to being welded with steel plate 4, the steel case 2-1 and the welding realization built-in steel-case-concrete combination beam 2 of steel plate 4 and being connected of built-in steel truss-concrete combination beam 1 by secondary beam again.Construction stage is connected steel plate 4 by steel case 2-1 with the steel truss side form effective weld all around realizes the transmission of load, and operational phase is connected effective weld all around of steel plate 4 by steel case 2-1 and inserts the vertical muscle of secondary beam of girder with the steel truss side dowel action collaborative work realizes the transmission of load.Described steel plate 4 is provided with one group of anchor bar 5, and described anchor bar 5 arranges evenly vertically that along steel plate 4 arrangement pitch is determined by force request and structure requirement.
The specific embodiment four: present embodiment and the specific embodiment one difference are that it comprises that also main stupefied 3, main stupefied 3 are welded between adjacent two girders, and described master stupefied 3 cross section is " Contraband " shape structure.
The specific embodiment five: present embodiment and the specific embodiment four differences are, main stupefied 3 are welded between adjacent two secondary beams, and present embodiment is used perpendicular to secondary beam and with secondary beam the stupefied construction that comes the nothing support self-supporting cast-in-place concrete floor of Zhi Chengmu distracted, floor bottom mould and floor deadweight of the reliable shaped steel master who is connected.
Claims (7)
1, a kind of nothing supports the self-supporting cast-in-place concrete structure, it comprises that two ends are fixed on the steel truss on the frame column, it is characterized in that with built-in steel truss-concrete combination beam as the girder in construction and the use, described built-in steel truss-concrete combination beam (1) comprises steel truss (1-1), steel bed die (1-2), side form (1-3) and socket reinforcing bar (1-4), be welded with one group respectively on the lower chord (1-1-1) of described steel truss (1-1) both sides and socket reinforcing bar (1-4), socket at two groups and to be welded with steel bed die (1-2) on the reinforcing bar (1-4), described side form (1-3) and steel bed die (1-2) Joint.
2, nothing according to claim 1 supports the self-supporting cast-in-place concrete structure, it is characterized in that being provided with in the inside of built-in steel truss-concrete combination beam the presstressed reinforcing steel (1-8) by arrangement of curves, thereby forms prestressed steel truss-concrete combination beam.
3, nothing according to claim 2 supports the self-supporting cast-in-place concrete structure, it is characterized in that it also comprises presstressed reinforcing steel (1-5) by straight line.
4, support the self-supporting cast-in-place concrete structure according to claim 1,2 or 3 described nothings, it is characterized in that between adjacent two girders, being welded with built-in steel-case-concrete combination beam (2) as secondary beam, two channel-section steels that built-in steel-case wherein (2-1) connects for butt welding, be welded with one group respectively in the lower end, both sides of built-in steel-case (2-1) and socket reinforcing bar (2-2), be welded with steel bed die (2-3) two groups of lower ends that socket reinforcing bar (2-2), steel bed die (2-3) is connected with side form (2-4) by U-shaped card (2-5).
5, nothing according to claim 4 supports the self-supporting cast-in-place concrete structure, the welding manner that it is characterized in that secondary beam and girder is the connected node structure, promptly in the lateral longitudinal of the steel truss (1-1) of girder to being welded with steel plate (4), the steel case (2-1) and the welding realization built-in steel-case-concrete combination beam (2) of steel plate (4) and being connected of built-in steel truss-concrete combination beam (1) by secondary beam again.
6, nothing according to claim 4 supports the self-supporting cast-in-place concrete structure, it is characterized in that it also comprises main stupefied (3), and main stupefied (3) are welded between adjacent two secondary beams, and described master's stupefied (3) cross section is " Contraband " shape structure.
7, support the self-supporting cast-in-place concrete structure according to claim 1,2 or 3 described nothings, it is characterized in that it also comprises main stupefied (3), main stupefied (3) are welded between adjacent two girders, and described master's stupefied (3) cross section is " Contraband " shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135541A CN1298945C (en) | 2004-02-13 | 2004-02-13 | Unshored self supporting cast-in-situ concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100135541A CN1298945C (en) | 2004-02-13 | 2004-02-13 | Unshored self supporting cast-in-situ concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1558053A CN1558053A (en) | 2004-12-29 |
| CN1298945C true CN1298945C (en) | 2007-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100135541A Expired - Fee Related CN1298945C (en) | 2004-02-13 | 2004-02-13 | Unshored self supporting cast-in-situ concrete structure |
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| CN (1) | CN1298945C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818542A (en) * | 2010-04-07 | 2010-09-01 | 湖南大学 | Concrete beam with built-in space truss steel skeleton |
| CN114215348B (en) * | 2021-12-21 | 2023-01-06 | 浙江恒鸿建设有限公司 | Roof cast-in-place steel beam concrete grid top and construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101698A (en) * | 1987-02-23 | 1988-09-07 | 马克·埃杜阿德·艾丽基恩 | The supporting of long-span beams and connected system |
| WO1998036134A1 (en) * | 1997-02-13 | 1998-08-20 | Tanaka Steel Workshop | Joint for steel structure, and combining structure using the same joints for steel structure |
| CN2480442Y (en) * | 2001-03-24 | 2002-03-06 | 常州灵通展览用品有限公司 | Joint for horizontal beam and vertical column |
| JP2002206285A (en) * | 2001-01-10 | 2002-07-26 | Shimizu Corp | Capital fixed structure |
| JP2002332691A (en) * | 2001-05-09 | 2002-11-22 | Shimizu Corp | Joint construction between column and beam |
| JP2003119885A (en) * | 2001-10-17 | 2003-04-23 | Artes:Kk | Joining device having a pair of diaphragms for joining reinforced concrete column and horizontal steel beam |
| CN2595904Y (en) * | 2003-01-02 | 2003-12-31 | 浙江杭萧钢构股份有限公司 | Self bearing type steel skeleton concrete combined beam |
-
2004
- 2004-02-13 CN CNB2004100135541A patent/CN1298945C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101698A (en) * | 1987-02-23 | 1988-09-07 | 马克·埃杜阿德·艾丽基恩 | The supporting of long-span beams and connected system |
| WO1998036134A1 (en) * | 1997-02-13 | 1998-08-20 | Tanaka Steel Workshop | Joint for steel structure, and combining structure using the same joints for steel structure |
| JP2002206285A (en) * | 2001-01-10 | 2002-07-26 | Shimizu Corp | Capital fixed structure |
| CN2480442Y (en) * | 2001-03-24 | 2002-03-06 | 常州灵通展览用品有限公司 | Joint for horizontal beam and vertical column |
| JP2002332691A (en) * | 2001-05-09 | 2002-11-22 | Shimizu Corp | Joint construction between column and beam |
| JP2003119885A (en) * | 2001-10-17 | 2003-04-23 | Artes:Kk | Joining device having a pair of diaphragms for joining reinforced concrete column and horizontal steel beam |
| CN2595904Y (en) * | 2003-01-02 | 2003-12-31 | 浙江杭萧钢构股份有限公司 | Self bearing type steel skeleton concrete combined beam |
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| Publication number | Publication date |
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| CN1558053A (en) | 2004-12-29 |
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