CN103821234A - Joint construction for steel-reinforced concrete column and reinforced concrete beam - Google Patents

Joint construction for steel-reinforced concrete column and reinforced concrete beam Download PDF

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Publication number
CN103821234A
CN103821234A CN201410102625.9A CN201410102625A CN103821234A CN 103821234 A CN103821234 A CN 103821234A CN 201410102625 A CN201410102625 A CN 201410102625A CN 103821234 A CN103821234 A CN 103821234A
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CN
China
Prior art keywords
reinforced concrete
steel
concrete column
profile steel
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410102625.9A
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Chinese (zh)
Inventor
焦燏烽
张益华
赵果
朱海华
杨为民
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Henan University of Science and Technology
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Henan University of Science and Technology
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Publication date
Application filed by Henan University of Science and Technology filed Critical Henan University of Science and Technology
Priority to CN201410102625.9A priority Critical patent/CN103821234A/en
Publication of CN103821234A publication Critical patent/CN103821234A/en
Pending legal-status Critical Current

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Abstract

A joint construction for a steel-reinforced concrete column and a reinforced concrete beam comprises the steel-reinforced concrete column and the reinforced concrete beam. Profile steel is pre-buried in the steel-reinforced concrete column, and the reinforced concrete beam is internally provided with hoopings, horizontally-distributed ribs and stress ribs. The wing edge of the profile steel in the steel-reinforced concrete column is connected with a connecting plate in a welding mode, a plurality of first bolt holes are formed in the connecting plate, the two sides of the connecting plate are respectively provided with a clamping plate provided with a plurality of second bolt holes, the connecting plate and the clamping plates on the two sides of the connecting plate are fixed through high-strength bolts, the stress ribs in the reinforced concrete beam are welded to the connecting plate and the clamping plates through double-face fillet welds, and the strength of joints is enhanced through the small section of profile steel welded to the wing edge of the profile steel in the joints. The small section of the profile steel welded to the profile steel inside the steel-reinforced concrete column is used for enhancing the strength of the joints, the ductility of the joints is enhanced through sliding of the bolts in the long circular bolt holes, and then the earthquake resistance of a building structure is improved.

Description

The joint structure of a kind of profile steel concrete column and reinforced concrete beam
Technical field
The invention belongs to technical field of civil engineering, be specifically related to the joint structure of a kind of profile steel concrete column and reinforced concrete beam.
Background technology
Reinforced concrete composite structure is that shaped steel is imbedded to the independently structural shape of one in steel concrete.Owing to having increased shaped steel in steel concrete, shaped steel is with its intrinsic strength and ductility and shaped steel, reinforcing bar, work and make steel reinforced concrete structure possess the advantage larger than traditional Bearing Capacity of Reinforced Concrete Structures, rigidity is large, anti-seismic performance is good to the concrete Trinity.Compared with steel work, there is fireproof performance good, structure partial and resistance to overturning are good, save the advantage of steel.Apply targetedly this class formation, development, the optimization to China's multi-story and high-rise building and improve structural seismic performance and be all extremely important.
In reinforced concrete composite structure, node is the key position that connects beam and column, and the safe and reliable of node work is the prerequisite that guarantees the normal work of structure.For the joint structure of profile steel concrete column and reinforced concrete beam, vertical muscle is generally connected with steel column by the mode that is directly welded on junction plate or be directly welded on shaped steel at present.The method is in the time connecting, and because vertical muscle is welded on junction plate, and junction plate is welded in section steel flange, causes node rigidity excessively strong, under geological process, can not produce enough plastic strain, and then causes node energy dissipation capacity to weaken; On the other hand, be welded in shaped steel if directly will indulge muscle, shaped steel weld seam is too much, and the accumulation of welding residual stress can cause the weakening in cross section, thereby reduces node strength.For improve the strength and ductility of node simultaneously, the connected node of a kind of profile steel concrete column and reinforced concrete beam need to be provided, form the plastic region seismic energy that dissipates in node strength improving, avoid node heavy damage, guarantee the progressive collapse-resisting performance of structure.
Summary of the invention
The object of the invention is, for type steel-concrete structure, provides the joint structure of a kind of profile steel concrete column and reinforced concrete beam, improves the strength and ductility of node, and then the shock resistance of enhancing building structure, node factory process is convenient, and site construction is easy, can the reduction of erection time.
The present invention solves the problems of the technologies described above the technical scheme of taking: the joint structure of a kind of profile steel concrete column and reinforced concrete beam, comprise profile steel concrete column and reinforced concrete beam, pre-buried shaped steel in profile steel concrete column, in reinforced concrete beam, be provided with stirrup, horizontal distribution muscle and principal rod, the edge of a wing of profile steel concrete column Shaped Steel is welded to connect plate, and offer multiple bolt hole I along the length direction of reinforced concrete beam on junction plate, the both sides of junction plate arrange respectively clamping plate that offer multiple bolt hole II, wherein bolt hole I and bolt hole II not exclusively overlap, high-strength bolt is fixedly connected with the clamping plate of junction plate and its both sides by the overlapping region between described bolt hole, principal rod in reinforced concrete beam is welded on junction plate and clamping plate with twin fillet wolt.
Further, the described junction plate being bolted and both sides clamping plate arrange in pairs in profile steel concrete column and reinforced concrete beam, and form node region, in node region, weld a bit of shaped steel to strengthen the intensity of node on the edge of a wing of shaped steel.
Further, described segment shaped steel is T-steel or i iron.
Further, described bolt hole I and bolt hole II are slotted hole, and its size radius size is r+(0.015 ~ 0.020) h, wherein r is bolt radius, h is the half of steel concrete depth of beam.
Compared with prior art, the invention has the beneficial effects as follows:
The first, the present invention opens Long Circle bolt hole in clamping plate and junction plate, greatly improves ductility and energy dissipation capacity and the heavy distribution capability of structural internal force of node;
Second, in the present invention the bolt hole of junction plate and clamping plate not centering offer, partially overlap but adopt, intersection is fixed it for high-strength bolt, like this in the time that special operation condition nodes such as running into earthquake enters the plastic stage, high-strength bolt can slippage in Long Circle bolt hole, when sliding onto behind the edge of Long Circle bolt hole, Bolt bearing capacity rely on screw rod cut and the hole wall pressure-bearing of clamping plate and junction plate stressed, change high strength bolt group into by frictional high-strength bolts group, overcome general node rigidity immutable, stresses re-distribution ability and ductility of joint deficiency under the special load operating modes such as earthquake, the shortcoming of the poor grade of node Hysteresis Behavior,
The 3rd, joint structure force path clear and rational in the present invention, takes the arrangement that not exclusively overlaps to the Long Circle bolt hole between junction plate and clamping plate, guaranteeing that bolt installs under exercisable prerequisite, can reduce the length of beam-ends and styletable junction plate, economical and effective; Meanwhile, bolt slippage can complete the displacement of two bolt long axis direction length continuously at upper lower plate, when guaranteeing ductility of joint, has shortened the length of bolt hole, reduces the weakening effect of Long Circle bolt hole node to junction plate;
The 4th, the section steel flange in node region in profile steel concrete column welds T-steel or i iron, has further greatly strengthened the strength and stiffness of joint structure;
The 5th, joint structure of the present invention is easy to process, the welding job of junction plate and T-steel or i iron and shaped steel can complete in factory, be easy to control welding quality and efficiency, bolt hole takes the mode not exclusively overlapping to arrange, can reduce the processing request of bolt hole, avoid the not shortcoming of easy fitted of bolt hole.
Therefore, in sum, utilization of the present invention is welded in segment shaped steel on profile steel concrete column Shaped Steel to strengthen the intensity of node, utilize bolt on Long Circle bolt hole slippage to strengthen the ductility of node, make building structure there is stronger shock resistance, and node can batch production processing, guarantee crudy, site construction is easy, is conducive to the reduction of erection time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is A-A sectional drawing in the present invention.
Mark in figure: 1, profile steel concrete column, 2, reinforced concrete beam, 3, stirrup, 4, horizontal distribution muscle, 5, shaped steel, 6, junction plate, 7, bolt hole I, 8, clamping plate, 9, bolt hole II, 10, bolt, 11, principal rod, 12, T-steel.
The specific embodiment
As shown in the figure, the joint structure of a kind of profile steel concrete column and reinforced concrete beam, comprise profile steel concrete column 1 and reinforced concrete beam 2, pre-buried shaped steel 5 in profile steel concrete column 1, in reinforced concrete beam 2, be provided with stirrup 3, horizontal distribution muscle 4 and principal rod 11, the edge of a wing of profile steel concrete column 1 Shaped Steel 5 is welded to connect plate 6, and offer multiple bolt hole I 7 along the length direction of reinforced concrete beam 2 on junction plate 6, the both sides of junction plate 6 arrange respectively clamping plate 8 that offer multiple bolt hole II 9, described bolt hole I 7 and bolt hole II 9 are slotted hole, its size radius size is r+(0.015 ~ 0.020) h, wherein r is bolt 10 radiuses, h is the half of reinforced concrete beam 2 height, bolt hole I 7 and bolt hole II 9 not exclusively overlap, high-strength bolt 10 is fixedly connected to form bindiny mechanism by the overlapping region between described bolt hole by the clamping plate 8 of junction plate 6 and its both sides, described bindiny mechanism in reinforced concrete beam 2 for being symmetrical arranged up and down, and form node region, in node region by being welded in segment T-steel 12 on described shaped steel 5 edges of a wing further to strengthen the intensity of node, principal rod 11 use twin fillet wolts in reinforced concrete beam 2 are welded on junction plate 6 and clamping plate 8.
Above-described is only the preferred embodiments of the present invention.Obviously, the invention is not restricted to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.

Claims (6)

1. the joint structure of a profile steel concrete column and reinforced concrete beam, comprise profile steel concrete column (1), the bindiny mechanism of reinforced concrete beam (2) and connecting-type steel concrete column (1) and reinforced concrete beam (2), in reinforced concrete beam (2), be provided with stirrup (3), horizontal distribution muscle (4) and principal rod (11), it is characterized in that: described bindiny mechanism comprises junction plate (6) and is arranged on the clamping plate (8) of the upper and lower both sides of junction plate (6), wherein shaped steel (5) edge of a wing of one end of junction plate (6) and profile steel concrete column (1) welding, the clamping plate (8) of the other end of junction plate (6) and junction plate both sides are welded on the principal rod (11) in reinforced concrete beam (2), above offer multiple bolt hole I (7) along the length direction of reinforced concrete beam (2) at junction plate (6), on described clamping plate (8), offer the bolt hole II (9) not exclusively overlapping with bolt hole I (7), and with bolt (10), junction plate (6) and two clamping plate (8) are fixing.
2. the joint structure of a kind of profile steel concrete column according to claim 1 and reinforced concrete beam, is characterized in that: at shaped steel (5) edge of a wing welding T-steel (12) or i shaped steel, to strengthen the strength and stiffness of described joint structure.
3. the joint structure of a kind of profile steel concrete column according to claim 1 and reinforced concrete beam, is characterized in that: described bolt hole I (7) is slotted hole.
4. the joint structure of a kind of profile steel concrete column according to claim 1 and reinforced concrete beam, is characterized in that: described bolt hole II (9) is slotted hole.
5. according to a kind of profile steel concrete column described in claim 3 or 4 and the joint structure of reinforced concrete beam, it is characterized in that: described slotted hole radius size is r+(0.015 ~ 0.02) h, wherein r is the radius of bolt (10), and h is the half of reinforced concrete beam (2) height.
6. the joint structure of a kind of profile steel concrete column according to claim 1 and reinforced concrete beam, is characterized in that: described bolt (10) is high-strength bolt.
CN201410102625.9A 2014-03-20 2014-03-20 Joint construction for steel-reinforced concrete column and reinforced concrete beam Pending CN103821234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410102625.9A CN103821234A (en) 2014-03-20 2014-03-20 Joint construction for steel-reinforced concrete column and reinforced concrete beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410102625.9A CN103821234A (en) 2014-03-20 2014-03-20 Joint construction for steel-reinforced concrete column and reinforced concrete beam

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CN103821234A true CN103821234A (en) 2014-05-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405044A (en) * 2014-11-25 2015-03-11 中国建筑第八工程局有限公司 Connecting structure and connecting method for steel pipe column and concrete frame
CN105421591A (en) * 2015-09-06 2016-03-23 上海建工七建集团有限公司 Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam
CN107975146A (en) * 2017-12-06 2018-05-01 中国冶集团有限公司 Profile steel concrete column-reinforced beam joint connecting method
CN112267570A (en) * 2020-11-11 2021-01-26 吉林建筑科技学院 Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008075425A (en) * 2006-09-25 2008-04-03 Shimizu Corp Joining structure of pile and column
CN102086677A (en) * 2009-12-02 2011-06-08 张吉华 Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam
KR20130000497A (en) * 2011-06-23 2013-01-03 최진욱 Concrete filled steer tube and beams connecting device
CN203008137U (en) * 2012-12-25 2013-06-19 中铁第四勘察设计院集团有限公司 Concrete-filled steel tubular column and reinforced concrete beam top joint connection structure
CN203008136U (en) * 2012-12-25 2013-06-19 中铁第四勘察设计院集团有限公司 Concrete-filled steel tubular column and reinforced concrete beam middle joint connection structure
CN203782894U (en) * 2014-03-20 2014-08-20 河南科技大学 Joint structure of steel-reinforced concrete column and reinforced concrete beam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008075425A (en) * 2006-09-25 2008-04-03 Shimizu Corp Joining structure of pile and column
CN102086677A (en) * 2009-12-02 2011-06-08 张吉华 Prefabricated reinforced concrete beam and connection joint of reinforced concrete column and beam
KR20130000497A (en) * 2011-06-23 2013-01-03 최진욱 Concrete filled steer tube and beams connecting device
CN203008137U (en) * 2012-12-25 2013-06-19 中铁第四勘察设计院集团有限公司 Concrete-filled steel tubular column and reinforced concrete beam top joint connection structure
CN203008136U (en) * 2012-12-25 2013-06-19 中铁第四勘察设计院集团有限公司 Concrete-filled steel tubular column and reinforced concrete beam middle joint connection structure
CN203782894U (en) * 2014-03-20 2014-08-20 河南科技大学 Joint structure of steel-reinforced concrete column and reinforced concrete beam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104405044A (en) * 2014-11-25 2015-03-11 中国建筑第八工程局有限公司 Connecting structure and connecting method for steel pipe column and concrete frame
CN105421591A (en) * 2015-09-06 2016-03-23 上海建工七建集团有限公司 Steel bar connecting structure and method for box type combined steel and concrete column and reinforced concrete beam
CN107975146A (en) * 2017-12-06 2018-05-01 中国冶集团有限公司 Profile steel concrete column-reinforced beam joint connecting method
CN112267570A (en) * 2020-11-11 2021-01-26 吉林建筑科技学院 Prefabricated section steel concrete column and sandwich concrete composite plate node and construction method

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Effective date of abandoning: 20170524