CN103015628A - Built-in honeycomb steel plate steel-encased high-intensity concrete combined beam - Google Patents
Built-in honeycomb steel plate steel-encased high-intensity concrete combined beam Download PDFInfo
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- CN103015628A CN103015628A CN2012105385849A CN201210538584A CN103015628A CN 103015628 A CN103015628 A CN 103015628A CN 2012105385849 A CN2012105385849 A CN 2012105385849A CN 201210538584 A CN201210538584 A CN 201210538584A CN 103015628 A CN103015628 A CN 103015628A
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Abstract
The invention discloses a built-in honeycomb steel plate steel-encased high-intensity concrete combined beam. A steel framework consists of a pair of reversed T-shaped steel, two pieces of reversed L-shaped angle steel and connection steel lacing bars; a transverse plate consisting of the reversed T-shaped steel is arranged at the bottom of the steel framework; a plurality of through holes are formed in a vertical plate consisting of the reversed T-shaped steel; the two pieces of parallel reversed L-shaped angle steel are respectively positioned on the left upper side and the right upper side of the reversed T-shaped steel and are connected with each other through the transverse lacing bars; and the reversed T-shaped steel is connected with the reversed L-shaped angle steel through the vertical lacing bars. High-intensity concrete is applied to a large-span beam type structural member; and due to rational arrangement of steel, a phenomenon that a crack is produced too early because of fragileness of concrete is avoided. The dynamical advantages of concrete and steel are fully developed; the vertical web plates consisting of the reversed T-shaped steel extend into the beam, so that the effective adhesion between the reversed T-shaped steel and the concrete can be improved, and proper anti-shear bearing capacity can be supplied; the using amount of templates during construction can be reduced; the working procedures of supporting the templates are reduced; the construction progress is improved; and mechanical construction is facilitated.
Description
Technical field
The present invention relates to Steel concrete combining structure and combination construction, particularly a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam.
Background technology
At some special constructions (such as large-size thermal power plant, longspan structure and highrise building) in,, increase owing to intercolumniation large (such as the distance between two pillars 7 among Fig. 1) causes the span of beam as its part or all of structural system (comprising mega-frame, framed-tube structure system etc.) with framework.Along with modern high-rise, stride development with heavy structure greatly, the user is increasing to the felt of architectural space, and general ordinary reinforced concrete (RC) beam or steel reinforced concrete (SRC) beam are in order to satisfy the strength and stiffness requirement of structural element, have to improve arrangement of reinforcement (steel) rate and the enlarging section size in cross section, cause therefrom dead load excessive, increase geological process, and have influence on the distribution of each internal force in structural system, such as " the weak post of the brutal " phenomenon that occurs not conforming to seismic design of structures.For the ductility demand that prevents above-mentioned phenomenon and satisfy structure, must seek that a kind of supporting capacity is large, deformability beam preferably.
The Covered with Angles concrete structure technique is a kind of design of building structures and reinforcing technique of newly-developed, is a kind of form of Steel concrete combining structure.The Covered with Angles concrete combination beam is reinforcing bar or the shaped steel that the outsourcing steel (angle steel, steel plate etc.) that fit over the beam external surface partly or entirely replace inside concrete, the steel of outsourcing are by being connected (being generally welding) with corresponding connector (such as reinforcing bar, lacing or sew part etc.), the inner concrete of operative constraint therefrom, thereby improve every load-carrying properties index of beam, its stress performance is improved.
For these two kinds of different materials of mechanical property of steel and concrete are effectively integrated, form a cooperative integral body, by configuring the anchor measures such as certain peg, inner stirrup, strengthen the cementation between the outsourcing Steel concrete.Technical scheme of the present invention is researched and developed for addressing this problem.
Summary of the invention
The technical problem to be solved in the present invention provides that a kind of strength and stiffness are high, between high-strength concrete and the steel caking property good, avoid high-strength concrete to be prone to the built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam of crack problem.
The present invention solves the problems of the technologies described above with following technical scheme:
A kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam waters full high-strength concrete in steel frame inside; Steel frame is by one pair of inverted T-shaped steel, two inverted L-shaped angle steel and connect the steel lacing and form; The bottom of steel frame is the transverse slat of inverted T-shaped steel, and some through holes are arranged on the vertical plate of inverted T-shaped steel; Two parallel inverted L-shaped angle steel lay respectively at the inverted T-shaped steel about the top; Connect with horizontal lacing between two inverted L-shaped angle steel, be connected to erect lacing between inverted T-shaped steel and the inverted L-shaped angle steel.
High-strength concrete is the concrete of strength grade of concrete 〉=C50, and the preparation method is with China's concerned countries standard.
The inverted T-shaped steel has the honeycomb steel plate of a plurality of through holes to consist of by a horizontal steel plate and one, and the honeycomb steel plate vertically is welded in horizontal steel plate middle part along its length.
The inverted L-shaped angle steel is the angle steel that is welded into or is rolled into by two block plates, connects by the horizontal lacing of some band steels at regular intervals between two inverted L-shaped angle steel, consists of the empty stomach of falling a flute profile reinforcing bar.
Be connected by the perpendicular lacing of some band steels at regular intervals between inverted T-shaped steel and the two inverted L-shaped angle steel.
With respect to prior art, technical scheme of the present invention has the following advantages:
(1) high-strength concrete is applied to large span beam type member, in conjunction with the reasonable setting of steel, avoided producing too early the crack because of the fragility of high-strength concrete.
(2) because the beam bottom is steel plate, given full play to the mechanics advantage of concrete and steel bi-material, concrete provides resistance to compression, and steel provide favourable tension.
(3) the vertical web with the inverted T-shaped steel stretches into beam inside, and can strengthen on the one hand with concrete has an effective adhesive, can suitably provide shear-carrying capacity on the other hand.
(4) set honeycomb steel plate has remedied the bad weakness of high-strength concrete and steel adhesive property, so that bi-material can co-operation.
(5) formation of steel frame not only can reduce the use of template in the construction, reduces the operation of formwork, improves construction speed, and favourable thereon mechanized construction operation.
Description of drawings
Fig. 1 is a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam of the present invention---reinforcing bar (shaped steel) concrete column frame plane schematic diagram;
Fig. 2 is the structural representation of the inverted T-shaped steel of compound beam of the present invention;
Fig. 3 is the space structures schematic diagram of compound beam of the present invention;
Fig. 4 is the structural representation of compound beam A-A section of the present invention among Fig. 1.
Among the figure: the perpendicular honeycomb steel plate 3-of the dull and stereotyped 2-inverted T-shaped steel of 1-inverted T-shaped steel erects the horizontal lacing 6-of lacing 4-inverted L-shaped angle steel 5-high-strength concrete 7-pillar
The specific embodiment
In order to give full play to the advantage of concrete and this bi-material of steel, namely concrete has the advancing side that compressive property is good, steel are suitable for structure, through rationally design, thereby makes its mutual supplement with each other's advantages.Built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam proposes with regard to being based on above-mentioned theory: the inverted T-shaped steel is disposed at advancing side at the bottom of the beam, compare with common RC beam, the inverted T-shaped steel not only can participate in the contribution of tension, shear strength, and can effectively avoid beam to cause the appearance in crack greatly because of span, avoid causing the sense of insecurity psychology of indoor occupant.The utilization of high-strength concrete can improve the relative intensity of member, increases indoor headway thereby effectively reduce therefrom deck-molding, and alleviates the beam deadweight.In order to overcome the brittleness of high-strength concrete, avoid between the Steel concrete adhesion stress to lose efficacy, the web place of T steel plate is offered circle or diamond hole.The setting of above-mentioned honeycomb steel plate is divided into several cells with the outsourcing steel with the rectangular cross section of beam, retrains thus inner high-strength concrete, further improves component strength.
Consider from the angle of convenient construction, thereby compound beam of the present invention has advantages of the template of saving, reduces a die process and shorten a construction period, and the steel frame that forms can be used as in the construction operation for mechanically operated platform, reduce scaffold.Therefore, can greatly reduce construction costs, save cost.
In general, built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam have that the needs, the supporting capacity that satisfy building function are high, anti-earthquake ductility good, easy construction and reduce the advantage such as cost.
Below in conjunction with drawings and Examples technical scheme of the present invention is further specified:
A kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam, comprise by a horizontal steel plate 1 with is connected that block inverted T-shaped steel that vertical honeycomb steel plate 2 is welded into, a pair of inverted L-shaped angle steel 4, a row of horizontal connect lacing 5, two rows vertically connect lacings 3 and inner high-strength concretes 6.
Two inverted L-shaped angle steel 4 are by being welded to connect with horizontal lacing 5, thereby consist of an empty stomach framework that falls flute profile.The inverted L-shaped angle steel of this framework participates in the compound beam anti-bending bearing capacity on the one hand, and is jointly stressed with the concrete compression district, but increasing section is joined the steel rate and retrained inner concrete on the other hand, is beneficial to ductility demand.
The inverted T-shaped steel is connected by the vertical lacing 3 in both sides with the framework of falling the flute profile, consists of the steel frame of a rectangle.
During formwork, only need at the both sides of steel frame support template, then from back after wherein build high-strength concrete, form built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam at this point.So construction not only can realize the steel frame suitability for industrialized production, and can greatly save making and the supporting of template, thereby reaches the purpose that reduces construction period, accelerating construction progress, saving construction cost.
Claims (5)
1. a built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam comprises outer steel skeleton, the inner high-strength concrete of filling, and it is characterized in that steel frame by one pair of inverted T-shaped steel, two inverted L-shaped angle steel and connect the steel lacing forming; The bottom of steel frame is the transverse slat of inverted T-shaped steel, and some through holes are arranged on the vertical plate of inverted T-shaped steel; Two parallel inverted L-shaped angle steel lay respectively at the inverted T-shaped steel about the top; Connect with horizontal lacing between two inverted L-shaped angle steel, be connected to erect lacing between inverted T-shaped steel and the inverted L-shaped angle steel.
2. a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam as claimed in claim 1 is characterized in that high-strength concrete is the concrete of strength grade of concrete 〉=C50, and the preparation method is with China's concerned countries standard.
3. a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam as claimed in claim 1, it is characterized in that the inverted T-shaped steel has the honeycomb steel plate of a plurality of through holes to consist of by a horizontal steel plate and one, the honeycomb steel plate vertically is welded in horizontal steel plate middle part along its length.
4. a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam as claimed in claim 1, it is characterized in that the inverted L-shaped angle steel is the angle steel that is welded into or is rolled into by two block plates, connect by the horizontal lacing of some band steels at regular intervals between two inverted L-shaped angle steel, consist of the empty stomach of falling a flute profile reinforcing bar.
5. a kind of built-in honeycomb steel plate Covered with Angles high-strength concrete compound beam as claimed in claim 1 is characterized in that being connected by the perpendicular lacing of some band steels at regular intervals between inverted T-shaped steel and the two inverted L-shaped angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105385849A CN103015628A (en) | 2012-12-13 | 2012-12-13 | Built-in honeycomb steel plate steel-encased high-intensity concrete combined beam |
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| CN2012105385849A CN103015628A (en) | 2012-12-13 | 2012-12-13 | Built-in honeycomb steel plate steel-encased high-intensity concrete combined beam |
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| CN103015628A true CN103015628A (en) | 2013-04-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133792A (en) * | 2015-08-28 | 2015-12-09 | 河海大学 | Steel reinforced concrete cross-shaped column with honeycomb-type web and construction method thereof |
| CN109763415A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of wave inception box beam |
| CN110185180A (en) * | 2019-05-30 | 2019-08-30 | 长安大学 | A kind of partial precast assembly honeycomb girder with rolled steel section en cased in concrete-panel structure system |
| CN113530082A (en) * | 2021-07-05 | 2021-10-22 | 浙江工业大学 | Outsourcing honeycomb channel steel combination beam and manufacturing method of regular hexagon honeycomb channel steel |
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| US5560176A (en) * | 1993-01-13 | 1996-10-01 | Deltatek Oy | Prefabricated steel-concrete composite beam |
| CN1307159A (en) * | 2000-01-24 | 2001-08-08 | 许琦 | Steel-frame building structure |
| US6341467B1 (en) * | 1996-05-10 | 2002-01-29 | Henkel Corporation | Internal reinforcement for hollow structural elements |
| KR20020063451A (en) * | 2001-01-29 | 2002-08-03 | (주)대우건설 | Advanced TEC beam with unsymmetric steel section |
| US6807789B1 (en) * | 2003-05-23 | 2004-10-26 | Daewoo Engineering & Construction Co., Ltd | Steel-concrete composite beam using asymmetric section steel beam |
| CN2797485Y (en) * | 2005-05-19 | 2006-07-19 | 沈阳建筑大学 | Honeycomb steel skeleton concrete column |
| CN101798851A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Combined steel pipe-encased concrete type buckling-restrained brace member |
-
2012
- 2012-12-13 CN CN2012105385849A patent/CN103015628A/en active Pending
Patent Citations (7)
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| US5560176A (en) * | 1993-01-13 | 1996-10-01 | Deltatek Oy | Prefabricated steel-concrete composite beam |
| US6341467B1 (en) * | 1996-05-10 | 2002-01-29 | Henkel Corporation | Internal reinforcement for hollow structural elements |
| CN1307159A (en) * | 2000-01-24 | 2001-08-08 | 许琦 | Steel-frame building structure |
| KR20020063451A (en) * | 2001-01-29 | 2002-08-03 | (주)대우건설 | Advanced TEC beam with unsymmetric steel section |
| US6807789B1 (en) * | 2003-05-23 | 2004-10-26 | Daewoo Engineering & Construction Co., Ltd | Steel-concrete composite beam using asymmetric section steel beam |
| CN2797485Y (en) * | 2005-05-19 | 2006-07-19 | 沈阳建筑大学 | Honeycomb steel skeleton concrete column |
| CN101798851A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Combined steel pipe-encased concrete type buckling-restrained brace member |
Non-Patent Citations (1)
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| 徐德新等: "外包钢结构在工程结构加固中的应用", 《哈尔滨建筑大学学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133792A (en) * | 2015-08-28 | 2015-12-09 | 河海大学 | Steel reinforced concrete cross-shaped column with honeycomb-type web and construction method thereof |
| CN109763415A (en) * | 2019-03-11 | 2019-05-17 | 江南大学 | A kind of wave inception box beam |
| CN109763415B (en) * | 2019-03-11 | 2020-01-14 | 江南大学 | Wave-lifting box beam |
| CN110185180A (en) * | 2019-05-30 | 2019-08-30 | 长安大学 | A kind of partial precast assembly honeycomb girder with rolled steel section en cased in concrete-panel structure system |
| CN110185180B (en) * | 2019-05-30 | 2020-08-14 | 长安大学 | Partially prefabricated honeycomb type steel concrete beam-plate structure system |
| CN113530082A (en) * | 2021-07-05 | 2021-10-22 | 浙江工业大学 | Outsourcing honeycomb channel steel combination beam and manufacturing method of regular hexagon honeycomb channel steel |
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Application publication date: 20130403 |