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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- frame
- floor
- framework
- shaped
- straight joint
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- 210000003205 muscle Anatomy 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 11
- 230000002787 reinforcement Effects 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 9
- 239000011150 reinforced concrete Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
本发明涉及一种楼板局部设缝的框架，包括框架柱、框架梁和楼板，所述的与框架柱连接处的框架梁端部两侧设置有贯穿楼板厚度的通缝，所述的通缝为L形或倒L形。所述的通缝的宽厚D为0.5-2mm，两边长度L均为500mm或1.5hb或2hb，hb为框架梁高。设有通缝的楼板范围的纵筋与框架梁端为分离形式。设置有L形或倒L形通缝的两根框架梁之间设置有小次梁，小次梁连接在楼板通缝范围外的框架梁上。本发明由于楼板在框架梁端设缝，且该处楼板纵筋没有锚入框架梁内，因而框架梁端两侧的楼板及其纵筋均不参与框架梁端工作，消除了框架梁端楼板及其纵筋对框架梁端抗弯承载力的贡献，从而可实现“强柱弱梁、强剪弱弯”的抗震要求，提高框架延性与耗能。
The invention relates to a frame with partial seams on the floor, including frame columns, frame beams and floor slabs, the two sides of the ends of the frame beams at the joints with the frame columns are provided with through joints penetrating through the thickness of the floor slabs, and the through joints It is L-shaped or inverted L-shaped. The thickness D of the through joint is 0.5-2mm, and the length L of both sides is 500mm or 1.5h b or 2h b , where h b is the frame beam height. The longitudinal reinforcement of the floor slab range with through joints is separated from the frame beam ends. A small secondary beam is arranged between the two frame beams provided with L-shaped or inverted L-shaped joints, and the small secondary beams are connected to the frame beams outside the range of the floor joints. In the present invention, since the floor slab is provided with seams at the end of the frame beam, and the longitudinal reinforcement of the floor slab is not anchored into the frame beam, the floor slab and its longitudinal reinforcement on both sides of the frame beam end do not participate in the work of the frame beam end, and the floor slab at the frame beam end is eliminated. The contribution of its longitudinal reinforcement to the flexural capacity of the frame beam end can realize the seismic requirements of "strong column and weak beam, strong shear and weak bending", and improve the ductility and energy consumption of the frame.
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 | Frame structure of high-rise 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 Nodes |
| 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 | Frame structure of high-rise 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 Nodes |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN103628588B (en) | 2017-06-30 |
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Granted publication date: 20170630 Termination date: 20171210 |