CN1329202A - Storey steel pipe concrete column R.C joint - Google Patents
Storey steel pipe concrete column R.C joint Download PDFInfo
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- CN1329202A CN1329202A CN 01127660 CN01127660A CN1329202A CN 1329202 A CN1329202 A CN 1329202A CN 01127660 CN01127660 CN 01127660 CN 01127660 A CN01127660 A CN 01127660A CN 1329202 A CN1329202 A CN 1329202A
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Abstract
The present invention discloses a steel pipe concrete column R.C node by storeys, and is characterized by that the steel pipe concrete column of vertical member can be arranged discontinuously by sections with clear height of storey, the storey reinforcec concrete horizontal member is passed through continuously at nodal points; between two sectional steel pipe concrete columns, vertical connecting steel bars are set up, and the vertical connecting steel bars are placed in the inner side of pipe wall of two sectional steel pipe concrete column. This invention is simple in design, convenient for construction, good in mechanical performance and low in cost.
Description
The present invention relates to the branch floor steel core concrete column R.C node in a kind of structural engineering.
The concrete filled steel tube rod structure all be up to now adopt steel pipe up and down continuously, the floor beam connects (as shown in Figure 1) at the node place, comprise that the bright bracket of setting forth among existing " encased structures design and construction rules " CECS28:90 or hidden bracket (punching with half punching) structure node and the reinforcing bar anti-shear ring that is provided with after improving add the ring beam structure node and be not always the case.If what the floor beam of cooperation steel core concrete column member adopted is steel work, then the bean column node of traditional method structure can be said to be fairly simple, thereby the superiority of steel core concrete column member is given full play to, yet, in real at present national conditions, even adopted the steel core concrete column member, the floor beam remains the employing reinforced concrete structure more, like this, at the connected node section, because steel pipe is continuous up and down, and the floor beam must adopt the connection way all the time at the node place, this just must solve and handle well the floor beam in the shearing at node place and the reliable and effectively transmission of moment of flexure, and this is the technology emphasis and the difficult point of concrete filled steel tube rod structure just.The technician who engages in steel core concrete column structural research is being devoted to this floor beam and construction problem stressed with being connected of steel pipe always.Whether do not go the force-transmission mechanism of fastidious various conventional node structures reliable for the time being, only to operate the restriction that brings to designer and constructor be objective reality to the stressed design and construction of its node, and produced many weak points thus:
1, in the engineering design, because the use different in kind of building, steel pipe caliber difference that needs and floor girder construction pattern are different and may need to adopt corresponding proper node pattern.Like this, the node of each engineering all must carry out designing and calculating, also must draw the constructional detail that artis is arranged, and just can't alleviate workload in the design stage.
2, owing to the different connected node of joint structure complexity, especially caliber, construction precision requires height, and high to constructor's technical level and the requirement of operation function, also high to personnel's professionalism requirement, general unit in charge of construction differs competent surely; In addition, the continuous up and down way of the steel pipe pillar of suitable several story heights once lifts, but the lifting of on-the-spot tower crane equipment is limited in one's ability, often profit is not used, if transfer in the big mobile crane equipment of lifting capacity in addition, increases the mechanical stage student contributions pooled to pay for class activities and does not say, travel in order to satisfy mobile crane, the floor intensity and toughness requirement of park, no matter be disposable reinforcement of structure or interim the reinforcing, all must pay suitable economic cost, from and increased engineering cost.
3, in order to guarantee effective transmission of node area beam shearing and moment of flexure, the steel member that is added or the steel using amount of ring beam reinforcing bar are quite big.So that the node that shear reinforcement adds ring beam to be set is example, and the ring beam steel using amount of the steel core concrete column node of the diameter D=1400mm 800kg that weighs adds the connection fittings of shell of column, and this steel using amount of two is as in unit area 10kg/m nearly
2, this steel using amount accounts for 1/6～1/7 of the total steel using amount of structure, obviously is a no small numeral.
The object of the present invention is to provide a kind of simplicity of design, easy construction, mechanical property is good and cost is low branch floor steel core concrete column R.C node.
Purpose of the present invention can realize by following technical measures: the steel core concrete column of vertical member is provided with discontinuous in the node place by the segmentation of floor clear height, floor steel concrete horizontal member connects in the node place continuously, be provided with vertical connecting reinforcement between the two segmentation steel core concrete columns, vertical connecting reinforcement places the tube wall inboard of two segmentation steel core concrete columns.
Described node place establishes annular horizontal armpit and forms ring beam, the radiation stirrup of annular steel bar stress of configuration and stationary annular steel bar stress in the ring beam; Or establish square horizontal armpit formation at the node place and strengthen the district, strengthen configuration reinforcement net sheet in the district.Annular girder or steel mesh reinforcement can provide the hoop constraint, and the main muscle of floor beam face provides horizontal restraint, to improve the concrete resistance to compression bearing capacity in the node area scope.
Described ring beam bight is provided with short shaped steel, further improves the concrete resistance to compression bearing capacity in the node area scope.
The present invention and steel core concrete column conventional node structure have following advantage:
1, because the floor beam is run through at node place left-right and front-back, and the steel pipe at node place is discontinuous, the employing layer and section is provided with, the transmission of the shearing of beam, moment of flexure is changed into the equally direct transmission of ordinary reinforced concrete structure, transmission in the shearing at node place and moment of flexure is the same direct with common frame construction, and it is stressed clear and definite, and power transmission is guaranteed, its joint structure more meets the supposition of frame construction rigid joint, more can guarantee integrally-built stability; Meanwhile, more identical with calculation procedure when application computer programs is carried out the structural calculation analysis to the agreement of rigid joint, the mistake of the major premise contradiction that produces when avoiding structural calculation.
2, emphasis of the present invention will solve the transmission of steel core concrete column vertical axis power in the node area scope, and the transmission of vertical axis power is by node area addition of constraints reinforcing bar and dispose vertical connecting reinforcement and can solve, thereby design of node is oversimplified more.
3, simplicity of design and simple structure mean that promptly constructing operation is simple, in fact do not have big difference with ordinary reinforced concrete structure, only can be more easy to operate and can not increase a bit difficulty, and this provides the possibility of construction for general construction team.
4, the reinforcing bar that need set up only is the constraint reinforcing bar of a node area and steel pipe connecting reinforcement up and down, and its limited amount than the steel using amount much less of conventional node, thereby has reduced structural cost.
5, the present invention is specially adapted to adopt the wide-flat beam floor structure, and this has created condition for reducing the floor floor height to obtain good macro-economic rersults; The intrinsic superiority of concrete filled steel tube rod structure is given full play to, for road has been paved in the extensive use of concrete filled steel tube rod structure.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is conventional steel concrete beam, column jointing gusset schematic diagram;
Fig. 2 is a steel core concrete column R.C node schematic diagram of the present invention;
Fig. 3 is the structural representation of the embodiment of the invention one;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of the embodiment of the invention two;
Fig. 6 is the vertical view of Fig. 5.
As shown in Figure 2, be steel core concrete column R.C node schematic diagram of the present invention, wherein the steel core concrete column 1 of vertical member is provided with discontinuous in the node place by the segmentation of floor clear height, floor steel concrete horizontal member 2 connects continuously in the node place, and horizontal member can be Vierendeel girder, wide-flat beam or the arch without beam flat board of conventional sectional dimension; Be provided with the vertical connecting reinforcement 3 that is used to transmit steel pipe column internal force between the two segmentation steel core concrete columns, vertical connecting reinforcement is at the steel pipe column inwall and equidistantly distributes, also configurable stirrup 8 (as shown in Figure 3) between the vertical connecting reinforcement is fixed on the steel pipe column inwall by the vertical connecting reinforcement of an electrode holder.Horizontal member such as Vierendeel girder runs through at node place left-right and front-back like this, and the steel pipe column layer and section is provided with, be as good as with normal reinforced concrete beam, about shearing, the moment of flexure of beam do not have problems in bearing and transmitting of node place, needing perfect is the resistance to compression bearing capacity that improves the range of nodes inner concrete.
As shown in Figure 3, Figure 4, structural representation for the embodiment of the invention one, form ring beam by add annular horizontal armpit at the node place, the radiation ring beam stirrup 7 of configuring multi-layer multi-ring annular steel bar stress 6 and stationary annular steel bar stress in the ring beam, configuration is six layers in the present embodiment one, and every layer is three circles, and annular girder can provide the hoop constraint, master's muscle 5 provides horizontal restraint at the bottom of continuous floor beam face master muscle 4, the beam, improves the concrete resistance to compression bearing capacity in the node area scope; Above-mentioned annular steel bar stress can adopt different specifications according to the needs of different resistance to compression bearing capacities, has enumerated three kinds of specifications in the following table 1.Also can intert short shaped steel in four angular regions of ring beam, shaped steel can be (not shown)s such as channel-section steel, angle steel, i iron, can further improve the concrete resistance to compression bearing capacity in the node area scope like this.
As Fig. 5, shown in Figure 6, structural representation for the embodiment of the invention two, form the reinforcement district by establish square horizontal armpit at the node place, strengthen configuring multi-layer reinforced mesh 9 in the district, five layers of reinforced mesh of configuration play the effect that improves the concrete resistance to compression bearing capacity in the node area scope equally in the present embodiment two.
The specification that the various connecting elementss of table 1 adopt
Claims (4)
1, a kind of minute floor steel core concrete column R.C node, it is characterized in that: the steel core concrete column of vertical member is provided with discontinuous by the segmentation of floor clear height, floor steel concrete horizontal member connects in the node place continuously, be provided with vertical connecting reinforcement between the two segmentation steel core concrete columns, vertical connecting reinforcement places the tube wall inboard of two segmentation steel core concrete columns.
2, according to claim 1 minute floor steel core concrete column R.C node is characterized in that: establish annular horizontal armpit at the node place and form ring beam, the radiation stirrup of annular steel bar stress of configuration and stationary annular steel bar stress in the ring beam.
3, according to claim 1 minute floor steel core concrete column R.C node is characterized in that: establish square horizontal armpit at the node place and form the reinforcement district, strengthen configuration reinforcement net sheet in the district.
4, according to claim 2 minute floor steel core concrete column R.C node is characterized in that: the short shaped steel that is provided with the bearing capacity that improves node area in the ring beam bight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011276606A CN1194150C (en) | 2001-07-26 | 2001-07-26 | Storey steel pipe concrete column R.C joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011276606A CN1194150C (en) | 2001-07-26 | 2001-07-26 | Storey steel pipe concrete column R.C joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1329202A true CN1329202A (en) | 2002-01-02 |
| CN1194150C CN1194150C (en) | 2005-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011276606A Expired - Fee Related CN1194150C (en) | 2001-07-26 | 2001-07-26 | Storey steel pipe concrete column R.C joint |
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| CN (1) | CN1194150C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316127C (en) * | 2004-05-27 | 2007-05-16 | 同济大学 | Totally assembled type prefabricated concrete structure system |
| CN100387896C (en) * | 2005-11-18 | 2008-05-14 | 李峰 | Composite stainless steel rod with rainforced structure and its mfg. method |
| CN101864808A (en) * | 2010-06-11 | 2010-10-20 | 赵正义 | Vertical positioning structure of tower mast mechanical equipment and foundation |
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
| CN102505846A (en) * | 2011-11-21 | 2012-06-20 | 中国建筑第八工程局有限公司 | Steel pipe column bearing table girder connection construction method |
| CN107034999A (en) * | 2017-04-07 | 2017-08-11 | 盐城工学院 | The enhancement mode node and its construction method of steel core concrete column and beams of concrete |
| CN111119472A (en) * | 2019-12-18 | 2020-05-08 | 同济大学建筑设计研究院(集团)有限公司 | Prefabricated formwork for concrete interfaces with different strength grades and construction method thereof |
-
2001
- 2001-07-26 CN CNB011276606A patent/CN1194150C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1316127C (en) * | 2004-05-27 | 2007-05-16 | 同济大学 | Totally assembled type prefabricated concrete structure system |
| CN100387896C (en) * | 2005-11-18 | 2008-05-14 | 李峰 | Composite stainless steel rod with rainforced structure and its mfg. method |
| CN101864808A (en) * | 2010-06-11 | 2010-10-20 | 赵正义 | Vertical positioning structure of tower mast mechanical equipment and foundation |
| CN101864808B (en) * | 2010-06-11 | 2012-03-28 | 赵正义 | Vertical positioning structure of tower mast mechanical equipment and foundation |
| CN102352655A (en) * | 2011-07-28 | 2012-02-15 | 华南理工大学 | Multi-floor type rectangular steel pipe concrete column and floor system beam connecting node and manufacturing method thereof |
| CN102505846A (en) * | 2011-11-21 | 2012-06-20 | 中国建筑第八工程局有限公司 | Steel pipe column bearing table girder connection construction method |
| CN102505846B (en) * | 2011-11-21 | 2013-10-30 | 中国建筑第八工程局有限公司 | Steel pipe column bearing table girder connection construction method |
| CN107034999A (en) * | 2017-04-07 | 2017-08-11 | 盐城工学院 | The enhancement mode node and its construction method of steel core concrete column and beams of concrete |
| CN111119472A (en) * | 2019-12-18 | 2020-05-08 | 同济大学建筑设计研究院(集团)有限公司 | Prefabricated formwork for concrete interfaces with different strength grades and construction method thereof |
| CN111119472B (en) * | 2019-12-18 | 2022-01-14 | 同济大学建筑设计研究院(集团)有限公司 | Prefabricated formwork for concrete interfaces with different strength grades and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1194150C (en) | 2005-03-23 |
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