CN103628588A - Frame with floor slab locally provided with seams - Google Patents
Frame with floor slab locally provided with seams Download PDFInfo
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- CN103628588A CN103628588A CN201310669310.8A CN201310669310A CN103628588A CN 103628588 A CN103628588 A CN 103628588A CN 201310669310 A CN201310669310 A CN 201310669310A CN 103628588 A CN103628588 A CN 103628588A
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- seams
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Abstract
The invention relates to a frame with a floor slab locally provided with seams. The frame comprises frame posts, frame beams and the floor slab, wherein through seams which penetrate through the thickness of the floor slab are formed in the two sides of the ends, connected with the frame posts, of the frame beams and are L-shaped or inverse L-shaped; the width thickness D of the through seams is 0.5 to 2mm; the lengths L of the two sides of the through seams are 500mm or 1.5hb or 2hb, and hb is the height of the frame beams; a longitudinal rib in the range of the floor slab provided with the through seams is separated from the ends of the frame beams; small secondary beams are arranged between the two frame beams provided with the L-shaped or inverse L-shaped through seams and are connected to the frame beam beyond the through seams of the floor slab. Due to the fact that the seams are formed in the ends of the frame beams, and the longitudinal rib of the floor slab at the place is not anchored in the frame beams, the floor slab on the two sides of the frame beams and the longitudinal ribs thereof do not participate in the work at the ends of the frame beams, the contribution of the floor slab at the ends of the frame beams and the longitudinal ribs thereof to the bending-resistant bearing capacity is eliminated, the anti-vibration requirements of ''strong post and weak beams, and high shearing force and weak bearing capacity'' can be met, and the ductility and the energy consumption are improved.
Description
Technical field
The present invention relates to a kind of reinforced concrete frame structure, the frame construction that particularly seam is established in a kind of floor part.
Background technology
< < seismic design provision in building code > > (GB 50011-2010) is by " strong column and weak beam, strong shear capacity and weak bending capacity, the weak member of the strong strong anchoring of node " to reinforced concrete frame structure, to guarantee that structure has good ductility, make structure reach the shockproof requirements of " no damage in small earthquake; middle shake can be repaiied, no collapsing with strong earthquake ".Frame construction has adopted moment augment factor of column in order to realize " strong column and weak beam " at present, in order to realize " strong shear capacity and weak bending capacity ", adopted shearing enhancement coefficient, so that frame construction plastic hinge under large shake effect appears at framework beam-ends, form beam hinge surrender mechanism, but a lot of especially Chinese Wenchuan earthquakes of earthquake show, although a lot of frame constructions are carried out seismic design according to mentioned above principle, still have more styletable to occur plastic hinge, formed the failure mechanism of " the weak post of brutal ", many frame constructions collapse even therefrom, the reason that occurs this phenomenon is more, but compared with the important point, be wherein: in the cast-in-situ floor of Vierendeel girder side and floor, vertical muscle has participated in the work of framework beam-ends, increased the actual anti-bending bearing capacity of framework beam-ends, make the actual anti-bending bearing capacity of framework beam-ends higher than framework styletable, and formed the structural system of " the weak post of brutal ", the plastic hinge that should occur at Vierendeel girder end has been transferred in frame column, even formed post hinge surrender mechanism and recurring structure total Collapse.Visible, eliminate the contribution of cast-in-situ floor to framework beam-ends anti-bending bearing capacity, be to make frame construction form important measures of beam hinge surrender mechanism.
In existing disclosed patent documentation, 2010101640030 of application numbers are called the Chinese invention patent application of < < reinforced concrete frame node > >, a kind of reinforced concrete frame node structure is disclosed, this structure is on the concrete floor around the intersection point of reinforced concrete post and reinforced concrete beam, to be provided with angle of release seam, realized to a certain extent the structure of strong column and weak beam, but still there is following shortcoming in it: from the Figure of description of this patent, can find out, its angle seam of opening is triangle, known according to the knowledge of this area, obtain the effect of strong column and weak beam, the preferred range of angle seam length is 500 mm or 1.5h
bor 2h
b, h
bfor framework deck-molding.The area minimum of this triangle angle seam need to have 0.125m like this
2, could realize the effect of good strong column and weak beam, be equivalent to form upstairs and downstairs a larger logical hole, this structure wasted the usable floor area of house, has been communicated with upstairs and usage space downstairs, and resident family is dissatisfied, Construction unit is also dissatisfied, is therefore infeasible in practice.A lot of elevations of building require, near post limit, door and window is set, and post limit floor arranges cavity, will can not meet the arrange needs of building to door and window, therefore from elevation of building, considers also infeasible.
Summary of the invention
The technical problem to be solved in the present invention is: the shockproof requirements that provides a kind of and both can meet " strong column and weak beam, strong shear capacity and weak bending capacity ", the frame construction that seam is established in the floor part of raising steel frame ductility and power consumption, do not change again the instructions for use of current building, and overcome Shortcomings part in above-mentioned prior art.
The technical scheme solving the problems of the technologies described above is: the framework of seam is established in a kind of floor part, comprise frame column, Vierendeel girder and floor, describedly be provided with end of frame girder both sides frame column junction the straight joint that runs through slab thickness, described straight joint is L shaped or inverted L-shaped, and vertical muscle and the framework beam-ends of the described floor scope that is provided with straight joint are unpack format.
The generous D of described straight joint is 0.5-2mm.
The both sides length L of described straight joint is 500 mm or 1.5h
bor 2h
b, h
bfor framework deck-molding.
Between the described two frame girders that is provided with L shaped or inverted L-shaped straight joint, be provided with little secondary beam, described little secondary beam is connected on the extraneous Vierendeel girder of floor straight joint.
Owing to adopting said structure, the framework that seam is established in the present invention's floor part has following beneficial effect:
The present invention is in the both sides floor of each framework beam-ends plastic hinge scope, setting runs through the straight joint of thickness of slab, and establishing the vertical muscle of seam scope floor does not all anchor in Vierendeel girder, and it is separated with framework beam-ends, thereby eliminate the contribution of framework beam-ends both sides floor to framework beam-ends anti-bending bearing capacity, make framework plastic hinge appear at beam-ends, form beam hinge surrender mechanism, realize the designing requirement of " strong column and weak beam, strong shear capacity and weak bending capacity ", improve Seismic Behavior of Frame Structure.Floor is established seam at framework beam-ends, outside floor is established seam scope, little secondary beam can be set and in order to encorbelment, establish seam scope floor, and this is established to seam scope floor can be by the requirement arrangement of reinforcement of outrigger base, and meets corresponding rigidity requirement.
Because floor is established seam at framework beam-ends, and the vertical muscle of this place's floor does not anchor in Vierendeel girder, thereby the floor of framework beam-ends both sides and vertical muscle thereof all do not participate in the work of framework beam-ends, framework beam-ends floor and the contribution of vertical muscle to framework beam-ends anti-bending bearing capacity thereof have been eliminated, thereby can realize the shockproof requirements of " strong column and weak beam, strong shear capacity and weak bending capacity ", improve steel frame ductility and power consumption.Visible, the shock resistance that seam framework can improve structure is established in floor of the present invention part.
The invention process work process is simple, does not take usable floor area, does not affect the normal use in space under upstairs house.In work progress, can utilize certain thin material to be attached to Vierendeel girder both sides as fireproof felt, then placing of concrete form floor, can form the structure that the framework of seam is established in the present invention's floor part.Straight joint of the present invention is L shaped or inverted L-shaped, and thickness 0.5-2mm, length L are 500 mm or 1.5h
bor 2h
b, h
bfor framework deck-molding, just can realize good strong column and weak beam effect, the area of straight joint maximum is 0.0032m only
2, its usable floor area taking is almost negligible.User also can simply adopt some sound insulation materialss to stop up after straight joint when finishing, just can need to fit up according to it, and this straight joint can not affect the normal use in space under upstairs house.Therefore the present invention has applied widely, practical advantage.
Below, the technical characterictic of in conjunction with the accompanying drawings and embodiments framework of seam being established in the present invention's floor part is further described.
Accompanying drawing explanation
Fig. 1: the frame construction schematic diagram of seam is established in the present invention's floor part.
In figure: 1-frame column, 2-Vierendeel girder, 3-straight joint, the little secondary beam of 4-, 5-floor, 6-indulges muscle.
The specific embodiment
Embodiment mono-: the framework of seam is established in a kind of floor part, comprise frame column 1, Vierendeel girder 2 and floor 5, the described end of frame girder both sides with frame column 1 junction are provided with the straight joint 3 that runs through floor 5 thickness, described straight joint 3 is L shaped or inverted L-shaped, the generous D of straight joint 3 is 0.5-2mm, and both sides length L is 500 mm or 1.5h
bor 2h
b, h
bfor framework deck-molding, 3 liang of edge lengths of straight joint can be identical can be not identical yet.Vertical muscle 6 and the framework beam-ends of the described floor scope that is provided with straight joint are unpack format, establish the vertical muscle of seam scope floor and all do not anchor in Vierendeel girder.Between the described two frame girders 2 that is provided with L shaped or inverted L-shaped straight joint, be provided with little secondary beam 4, little secondary beam 4 is connected on the extraneous Vierendeel girder 2 of floor straight joint.
In the present embodiment, described straight joint 3 both sides length L are according to antidetonation classification, and while requiring antidetonation grade to be one-level, straight joint 3 both sides length L are selected 500 mm and 2h
bin large person; Require that antidetonation grade is two, three, during level Four, straight joint 3 both sides length L are selected 500 mm and 1.5h
bin large person.
As a kind of conversion of the present embodiment, the generous D of described straight joint and both sides length L can also be according to actual conditions adjustment.
Claims (4)
1. the framework of seam is established in a floor part, comprise frame column (1), Vierendeel girder (2) and floor (5), it is characterized in that: be describedly provided with Vierendeel girder (2) both sides, end frame column (1) junction the straight joint (3) that runs through floor (5) thickness, described straight joint (3) is L shaped or inverted L-shaped, and the vertical muscle (6) of the described floor scope that is provided with straight joint is unpack format with framework beam-ends.
2. the framework of seam is established in floor according to claim 1 part, it is characterized in that: the generous D of described straight joint (3) is 0.5-2mm.
3. the framework of seam is established in floor according to claim 1 part, it is characterized in that: the both sides length L of described straight joint (3) is 500 mm or 1.5h
bor 2h
b, h
bfor framework deck-molding.
4. according to the floor part described in claim 1,2 or 3, establish the framework of seam, it is characterized in that: between the described two frame girders (2) that is provided with L shaped or inverted L-shaped straight joint, be provided with little secondary beam (4), described little secondary beam (4) is connected on the extraneous Vierendeel girder of floor straight joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669310.8A CN103628588B (en) | 2013-12-10 | 2013-12-10 | The framework of floor slab locally provided with seams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310669310.8A CN103628588B (en) | 2013-12-10 | 2013-12-10 | The framework of floor slab locally provided with seams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103628588A true CN103628588A (en) | 2014-03-12 |
| CN103628588B CN103628588B (en) | 2017-06-30 |
Family
ID=50210011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310669310.8A Expired - Fee Related CN103628588B (en) | 2013-12-10 | 2013-12-10 | The framework of floor slab locally provided with seams |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103628588B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729547A (en) * | 2018-06-11 | 2018-11-02 | 深圳市建筑设计研究总院有限公司 | Reinforced concrete frame connection structure |
| CN109469203A (en) * | 2018-12-25 | 2019-03-15 | 中国电建集团成都勘测设计研究院有限公司 | Highlight lines area frame structure node of column and beam overall structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317498A (en) * | 2001-04-20 | 2002-10-31 | Kajima Corp | Framework structure of multistory building |
| JP2003166286A (en) * | 2001-11-29 | 2003-06-13 | Isobe Miho | Building skeleton construction method |
| CN201330458Y (en) * | 2008-10-30 | 2009-10-21 | 河北理工大学 | Steel tube concrete column-plate hinging node |
| CN101691783A (en) * | 2009-10-09 | 2010-04-07 | 马文旭 | Reinforced concrete structure or steel-concrete combined structure system |
| CN201671185U (en) * | 2010-04-30 | 2010-12-15 | 河北理工大学 | Reinforced concrete frame joint |
| CN203701320U (en) * | 2013-12-10 | 2014-07-09 | 广西科技大学 | Locally-split frame of floor plate |
-
2013
- 2013-12-10 CN CN201310669310.8A patent/CN103628588B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002317498A (en) * | 2001-04-20 | 2002-10-31 | Kajima Corp | Framework structure of multistory building |
| JP2003166286A (en) * | 2001-11-29 | 2003-06-13 | Isobe Miho | Building skeleton construction method |
| CN201330458Y (en) * | 2008-10-30 | 2009-10-21 | 河北理工大学 | Steel tube concrete column-plate hinging node |
| CN101691783A (en) * | 2009-10-09 | 2010-04-07 | 马文旭 | Reinforced concrete structure or steel-concrete combined structure system |
| CN201671185U (en) * | 2010-04-30 | 2010-12-15 | 河北理工大学 | Reinforced concrete frame joint |
| CN203701320U (en) * | 2013-12-10 | 2014-07-09 | 广西科技大学 | Locally-split frame of floor plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729547A (en) * | 2018-06-11 | 2018-11-02 | 深圳市建筑设计研究总院有限公司 | Reinforced concrete frame connection structure |
| CN108729547B (en) * | 2018-06-11 | 2024-05-07 | 深圳市建筑设计研究总院有限公司 | Reinforced concrete frame connection structure |
| CN109469203A (en) * | 2018-12-25 | 2019-03-15 | 中国电建集团成都勘测设计研究院有限公司 | Highlight lines area frame structure node of column and beam overall structure |
| CN109469203B (en) * | 2018-12-25 | 2023-09-19 | 中国电建集团成都勘测设计研究院有限公司 | High intensity area frame construction post beam node overall structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103628588B (en) | 2017-06-30 |
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