CN104294920A - Joint assembly of U-shaped steel reinforced concrete combined beam and special-shaped concrete-filled steel tube column and manufacturing method of joint assembly - Google Patents
Joint assembly of U-shaped steel reinforced concrete combined beam and special-shaped concrete-filled steel tube column and manufacturing method of joint assembly Download PDFInfo
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- CN104294920A CN104294920A CN201410603341.8A CN201410603341A CN104294920A CN 104294920 A CN104294920 A CN 104294920A CN 201410603341 A CN201410603341 A CN 201410603341A CN 104294920 A CN104294920 A CN 104294920A
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Abstract
The invention relates to a joint assembly and a manufacturing method of the joint assembly, in particular to a joint assembly of a U-shaped steel reinforced concrete combined beam and a special-shaped concrete-filled steel tube column and a manufacturing method of the joint assembly. The joint assembly of the U-shaped steel reinforced concrete combined beam and the special-shaped concrete-filled steel tube column and the manufacturing method of the joint assembly solve the problems that an existing joint connecting method between the special-shaped concrete-filled steel tube column and the combined beam is unreasonable, and quality of concrete pouring can not be guaranteed easily, so that the bearing capacity of a joint is too low, the ductility and the energy-dissipating capacity of a core area of the joint are insufficient, and the joint is damaged more easily compared with other components. The joint assembly of the U-shaped steel reinforced concrete combined beam and the special-shaped concrete-filled steel tube column comprises a steel pipe, a U-shaped steel channel, a concrete slab and a plurality of steel bars, wherein the steel pipe is vertically arranged, an opening of the U-shaped steel channel is upward, one end of the U-shaped steel channel is connected with the outer side wall of the steel pipe, the axis of the steel pipe is parallel with the center line of the U-shaped steel channel in the length direction, the concrete slab is horizontally installed on the outer side wall of the steel pipe in a sleeving mode and is located at the upper portion of the U-shaped steel channel, and the multiple steel bars are arranged inside the concrete slab. The joint assembly of the U-shaped steel reinforced concrete combined beam and the special-shaped concrete-filled steel tube column is applied to the field of buildings.
Description
Technical field
The present invention relates to a kind of node component and preparation method, be specifically related to node component and the preparation method of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post, belong to building field.
Background technology
U-shaped steel-concrete composite beam is a kind of new structural members, the i shaped cross section girder steel in conventional composite beam is replaced with U-shaped steel, the fire resistance of compound beam can be significantly improved, improve the anti-bending bearing capacity under the effect of node area hogging moment, U-shaped steel-concrete composite beam can be accomplished with body of wall wide simultaneously, architectural effect is good, therefore has broad application prospects in Practical Project.The steel pipe of special-shaped steel pipe concrete post is formed by steel pipe or Plate Welding, and in the cross section of steel beam column composition concreting and a kind of combined member of being formed, because special-shaped steel pipe concrete post can be accomplished with body of wall wide, therefore have broad application prospects in house, mainly shaped rc columns is adopted in current Practical Project, but because shaped rc columns construction is complicated, poor seismic behavior, therefore be only limitted in low-rise building structure, and special-shaped steel pipe concrete post have employed steel beam column due to periphery, steel beam column can operative constraint concrete, concrete bearing capacity and ductility are significantly improved, the anti-seismic performance of structural system can be significantly improved, in addition special-shaped steel pipe concrete post eliminates formwork and the form removal operation of reinforced concrete member, significantly improve the speed of application of structure, there is good economic benefit.Structural system center trestle adopts special-shaped steel pipe concrete post, during Vierendeel girder employing U-shaped steel-concrete composite beam, relates to the node of a kind of new node connection and U-shaped steel-concrete composite beam and special-shaped steel pipe concrete post.The breadth of section of special-shaped steel pipe concrete post is usual and body of wall is wide, generally be not more than 200mm, the connection of U-shaped compound beam and coupled column adopts internal partition and external partition two kinds of modes usually, connect according to external partition, then larger at the bottom flange place overhanging width of dividing plate, architectural effect is poor, cannot reach the object adopting special-shaped steel pipe concrete post special-shaped steel pipe concrete post; Connect according to internal partition, because hetermorphiscal column sectional dimension is less, the existence of internal partition effectively cannot ensure the concrete pouring quality of node area, if node area concreting leakiness, can reduce ultimate bearing capacity of joints, causes node to occur too early destroying.
Summary of the invention
The present invention is that the connected mode of the existing special-shaped steel pipe concrete post of solution and compound beam node is unreasonable, concrete pouring quality not easily ensures, cause the bearing capacity of node too low, the ductility of joint cores and energy dissipation capacity deficiency, make node prior to the problem of other component damages, and then propose node component and the preparation method of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post
The present invention is the technical scheme taked that solves the problem: assembly of the present invention comprises steel pipe, U-lag steel, concrete slab and Duo Gen reinforcing bar, steel pipe is vertically arranged, U-lag steel is opening up, one end of U-lag steel is connected with the lateral wall of steel pipe, and the axis of steel pipe and U-lag steel centerline parallel along its length, concrete slab horizontal set is on the lateral wall of steel pipe, and concrete slab is positioned at the top of U-lag steel, is provided with many reinforcing bars in concrete slab.
The concrete steps of preparation method of the present invention are as follows:
Step one, one end of U-lag steel to be connected by the mode of welding with the lateral wall of steel pipe;
Step 2, multiple angle steel shear key is welded in U-lag steel;
Step 3, respectively weld a trapezoidal decks at U-lag steel with the both sides of steel pipe lateral wall junction;
Step 4, the component node welded is transported to job site, carries out installation location;
Step 5, by many reinforcing bar bindings above U-lag steel;
Step 6, in reinforcing bar, U-lag steel and steel pipe concreting.
The invention has the beneficial effects as follows: the present invention is a kind of reasonable stress, simple structure, easy construction, node component that commercial process is high, traditional external partition and internal partition connected mode is instead of with two side cover plates, efficiently solve the shortcoming that inner diaphragm joint in special-shaped steel pipe concrete post is not easy to ensure concrete pouring quality, solve the shortcoming that external partition node middle section is oversize simultaneously.U-shaped steel top flange adopts junction plate to be connected with special-shaped steel pipe concrete post, ensure that the internal force of top flange effectively passes to special-shaped steel pipe concrete post, the internal force of bottom flange then passes to special-shaped steel pipe concrete post by both sides trapezoidal decks, the internal force avoiding bottom flange acts directly on the steel pipe of special-shaped steel pipe concrete post, steel pipe is made to produce cripling too early, power transmission of the present invention is clear and definite, ensure that the load on U-shaped steel-concrete composite beam effectively passes to special-shaped steel pipe concrete post, bottom flange is connected with special-shaped steel pipe concrete post by both sides trapezoidal decks, while meeting intensity, column section and beam section can be accomplished and body of wall uniform thickness, without too much exposed parts, be easy to building finishing.Node area trapezoidal decks mentioned in the present invention is connected with U-lag steel with steel pipe, and setting like this is convenient to realize U-lag steel lower wing plate and is connected with the reliable of steel pipe, ensures that the internal force of beam effectively passes to node.The employing edge of a wing, U-lag steel top flange of the present invention junction plate is connected with steel pipe, so arranges the internal force being convenient to realize U-shaped beam upper limb and effectively passes to steel pipe.U-lag steel bottom flange of the present invention width is identical with steel pipe width, and be convenient to beam, post width is identical, in framework, the filled wall back rest, post are without exposing phenomenon, obtain good architectural effect.
Accompanying drawing explanation
Fig. 1 is the structural representation before the present invention builds, and Fig. 2 is the structural representation after the present invention builds, and Fig. 3 to Fig. 6 is encased structures schematic diagram.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post comprises steel pipe 1, U-lag steel 2, concrete slab 3 and Duo Gen reinforcing bar 4, steel pipe 1 is vertically arranged, U-lag steel 2 is opening up, one end of U-lag steel 2 is connected with the lateral wall of steel pipe 1, and the axis of steel pipe 1 and U-lag steel 2 centerline parallel along its length, concrete slab 3 horizontal set is on the lateral wall of steel pipe 1, and concrete slab 3 is positioned at the top of U-lag steel 2, many reinforcing bars 4 are fitted with in concrete slab 3.
Detailed description of the invention two: composition graphs 1 and Fig. 2 illustrate present embodiment, the edge of U-lag steel 2 opening part of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post described in present embodiment is provided with outward extending edge of a wing junction plate 5, the upper surface of each edge of a wing junction plate 5 is all connected with the soffit of concrete slab 3, one end of each edge of a wing junction plate 5 is provided with extension plate 5-1, and each extension plate 5-1 is all connected with the lateral wall of steel pipe 1.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention three: composition graphs 1 illustrates present embodiment, the U-lag steel 2 of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post described in present embodiment is provided with trapezoidal decks 6 with the junction of steel pipe 1 lateral wall.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention four: composition graphs 1 and Fig. 2 illustrate present embodiment, is provided with multiple angle steel shear key 7 in the U-lag steel 2 of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post described in present embodiment.Other composition and annexation identical with detailed description of the invention one.
Detailed description of the invention five: composition graphs 3 illustrates present embodiment, steel pipe 1 cross section of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post described in present embodiment is rectangle.Other composition and annexation and detailed description of the invention one, two, three or four identical.
Detailed description of the invention six: composition graphs 4 illustrates present embodiment, described in present embodiment, the cross section of the steel pipe 1 of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post is T-shaped.Other composition and annexation identical with detailed description of the invention five.
Detailed description of the invention seven: composition graphs 5 illustrates present embodiment, described in present embodiment, the cross section of the steel pipe 1 of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post is L shape.Other composition and annexation identical with detailed description of the invention five.
Detailed description of the invention eight: composition graphs 6 illustrates present embodiment, described in present embodiment, the cross section of the steel pipe 1 of the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post is cross.Other composition and annexation identical with detailed description of the invention five.
Detailed description of the invention nine: composition graphs 1 and Fig. 2 illustrate present embodiment, described in present embodiment, described in a kind of detailed description of the invention one, the preparation method of the node component of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post completes as follows:
Step one, one end of U-lag steel 2 to be connected by the mode of welding with the lateral wall of steel pipe 1;
Step 2, multiple angle steel shear key 7 is welded in U-lag steel 2;
Step 3, respectively weld a trapezoidal decks 6 at U-lag steel 2 with the both sides of steel pipe 1 lateral wall junction;
Step 4, the steel beam column node welded is transported to job site, carries out installation location;
Step 5, by many reinforcing bars 4 colligation above U-lag steel 2;
Step 6, in reinforcing bar 4, U-lag steel 2 and steel pipe 1 concreting.
Steel pipe of the present invention, U-lag steel, edge of a wing junction plate, trapezoidal decks, angle steel shear key all adopt Q235 steel or Q345 steel or Q390 steel or Q420 steel to make.Be convenient to the working strength ensureing node component.
Reinforcing bar of the present invention can adopt HRB235 reinforcing bar, HRB335 reinforcing bar, HRB400 reinforcing bar or RRB400 reinforcing bar one wherein.Be convenient to draw materials.
Concrete of the present invention is ordinary concrete or light weight aggregate concrete or high performance concrete, and strength grade is C30-C80.
Claims (9)
1. the node component of a U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post, it is characterized in that: the node component of described a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post comprises steel pipe (1), U-lag steel (2), concrete slab (3) and many reinforcing bars (4), steel pipe (1) is vertically arranged, U-lag steel (2) is opening up, one end of U-lag steel (2) is connected with the lateral wall of steel pipe (1), and the axis of steel pipe (1) and U-lag steel (2) centerline parallel along its length, concrete slab (3) horizontal set is on the lateral wall of steel pipe (1), and concrete slab (3) is positioned at the top of U-lag steel (2), many reinforcing bars (4) are fitted with in concrete slab (3).
2. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 1, it is characterized in that: the edge of U-lag steel (2) opening part is provided with outward extending edge of a wing junction plate (5), the upper surface on each edge of a wing junction plate (5) all contacts with the soffit of concrete slab (3), the one end on each edge of a wing junction plate (5) is provided with extension plate (5-1), and each extension plate (5-1) is all connected with the lateral wall of steel pipe (1).
3. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 1, is characterized in that: U-lag steel (2) is provided with trapezoidal decks (6) with the junction of steel pipe (1) lateral wall.
4. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 1, is characterized in that: be provided with multiple angle steel shear key (7) in U-lag steel (2).
5. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 1,2,3 or 4, is characterized in that: steel pipe (1) cross section is rectangle.
6. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 5, is characterized in that: the cross section of steel pipe (1) is T-shaped.
7. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 5, is characterized in that: the cross section of steel pipe (1) is L shape.
8. the node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post according to claim 5, is characterized in that: the cross section of steel pipe (1) is cross.
9. a preparation method for the node component of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post described in claim 1, is characterized in that: the preparation method of the node component of described a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post realizes as follows:
Step one, the lateral wall of one end of U-lag steel (2) with steel pipe (1) to be connected by the mode of welding;
Step 2, multiple angle steel shear key (7) is welded in U-lag steel (2);
Step 3, respectively weld a trapezoidal decks (6) in U-lag steel (2) and the both sides of steel pipe (1) lateral wall junction;
Step 4, the steel beam column node welded is transported to job site, carries out installation location;
Step 5, by the top of many reinforcing bars (4) colligation in U-lag steel (2);
Step 6, in reinforcing bar (4), U-lag steel (2) and steel pipe (1) concreting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603341.8A CN104294920B (en) | 2014-10-30 | 2014-10-30 | The node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603341.8A CN104294920B (en) | 2014-10-30 | 2014-10-30 | The node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post and preparation method |
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| CN104294920A true CN104294920A (en) | 2015-01-21 |
| CN104294920B CN104294920B (en) | 2016-09-28 |
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| CN201410603341.8A Active CN104294920B (en) | 2014-10-30 | 2014-10-30 | The node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post and preparation method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971112A (en) * | 2016-06-28 | 2016-09-28 | 杭萧钢构股份有限公司 | Fabricated low-rise structural system adopting steel tube bundle frame |
| WO2018077202A1 (en) * | 2016-10-25 | 2018-05-03 | 华南理工大学 | Joint connection for recycled block concrete composite beam-column and construction method therefor |
| CN108104271A (en) * | 2016-11-24 | 2018-06-01 | 重庆市中科大业建筑科技有限公司 | Clod wash multi-cavity steel tube concrete Special-Shaped Column and the rigid connection node of U-shaped combination beam |
| CN108407045A (en) * | 2018-04-13 | 2018-08-17 | 中建电力建设有限公司 | A kind of Baogang's concrete builds the construction method of part |
| CN110076221A (en) * | 2019-05-16 | 2019-08-02 | 中建钢构武汉有限公司 | A kind of U-shaped board forming method and U-shaped board installation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2004137790A (en) * | 2002-10-18 | 2004-05-13 | Porasu Kurashi Kagaku Kenkyusho:Kk | Joint metal for base and capital of column of wooden building |
| JP2004218401A (en) * | 2003-01-14 | 2004-08-05 | Takeshi Shinada | Fixing hardware of column and horizontal member in wooden building |
| KR20090093561A (en) * | 2008-02-29 | 2009-09-02 | 에스에이치공사 | Connecting structure for form-less column and steel beams, and constructing method thereof |
| DE102008064354A1 (en) * | 2008-12-20 | 2010-06-24 | Wittig, Arnold | Connection fitting for use in timber construction for angularly connecting vertical- and horizontal beams to each other, has U-shaped connection element provided with pressure spring and resting at horizontal beam |
| CN203200925U (en) * | 2013-04-16 | 2013-09-18 | 东南大学 | Prefabricated concrete framework beam column connected node structure |
| CN103835435A (en) * | 2014-03-07 | 2014-06-04 | 江苏中宝钢构有限公司 | U-shaped steel-concrete composite beam |
| CN204081090U (en) * | 2014-10-30 | 2015-01-07 | 江苏中宝钢构有限公司 | The node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post |
-
2014
- 2014-10-30 CN CN201410603341.8A patent/CN104294920B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004137790A (en) * | 2002-10-18 | 2004-05-13 | Porasu Kurashi Kagaku Kenkyusho:Kk | Joint metal for base and capital of column of wooden building |
| 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 |
| JP2004218401A (en) * | 2003-01-14 | 2004-08-05 | Takeshi Shinada | Fixing hardware of column and horizontal member in wooden building |
| KR20090093561A (en) * | 2008-02-29 | 2009-09-02 | 에스에이치공사 | Connecting structure for form-less column and steel beams, and constructing method thereof |
| DE102008064354A1 (en) * | 2008-12-20 | 2010-06-24 | Wittig, Arnold | Connection fitting for use in timber construction for angularly connecting vertical- and horizontal beams to each other, has U-shaped connection element provided with pressure spring and resting at horizontal beam |
| CN203200925U (en) * | 2013-04-16 | 2013-09-18 | 东南大学 | Prefabricated concrete framework beam column connected node structure |
| CN103835435A (en) * | 2014-03-07 | 2014-06-04 | 江苏中宝钢构有限公司 | U-shaped steel-concrete composite beam |
| CN204081090U (en) * | 2014-10-30 | 2015-01-07 | 江苏中宝钢构有限公司 | The node component of a kind of U-shaped steel-concrete combination beam and special-shaped steel pipe concrete post |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971112A (en) * | 2016-06-28 | 2016-09-28 | 杭萧钢构股份有限公司 | Fabricated low-rise structural system adopting steel tube bundle frame |
| WO2018077202A1 (en) * | 2016-10-25 | 2018-05-03 | 华南理工大学 | Joint connection for recycled block concrete composite beam-column and construction method therefor |
| CN108104271A (en) * | 2016-11-24 | 2018-06-01 | 重庆市中科大业建筑科技有限公司 | Clod wash multi-cavity steel tube concrete Special-Shaped Column and the rigid connection node of U-shaped combination beam |
| CN108407045A (en) * | 2018-04-13 | 2018-08-17 | 中建电力建设有限公司 | A kind of Baogang's concrete builds the construction method of part |
| CN110076221A (en) * | 2019-05-16 | 2019-08-02 | 中建钢构武汉有限公司 | A kind of U-shaped board forming method and U-shaped board installation method |
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| Publication number | Publication date |
|---|---|
| CN104294920B (en) | 2016-09-28 |
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