CN104912197A - Connecting node for steel pipe concrete post and outside U-shaped steel and concrete composite beam - Google Patents

Connecting node for steel pipe concrete post and outside U-shaped steel and concrete composite beam Download PDF

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Publication number
CN104912197A
CN104912197A CN201510329922.1A CN201510329922A CN104912197A CN 104912197 A CN104912197 A CN 104912197A CN 201510329922 A CN201510329922 A CN 201510329922A CN 104912197 A CN104912197 A CN 104912197A
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steel
plate
node
steel pipe
shaped steel
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林彦
周学军
苗纪奎
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Shandong Jianzhu University
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Shandong Jianzhu University
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Abstract

The invention provides a connecting node for a steel pipe concrete post and an outside U-shaped steel and concrete composite beam. In order to prevent the lamellar tearing of the steel pipe walls and the outer surface deformation of a post wall plate, a penetrating separation plate penetrating through steel pipes is arranged in the steel pipes arranged in a position of a composite beam bottom plate; the steel pipes are broken in a position of the penetrating separation plate; the upper steel pipe and the lower steel pipe are connected with the upper end surface and the lower end surface of the penetrating separation plate through butt-jointed welding seams with grooves; a U-shaped steel bottom plate is connected with the penetrating separation plate by the butt-jointed welding seams after the amputation; the welding seams cannot easily crack; the connection intensity is high; and the anti-seismic performance is good. The two opposite ends of the steel pipes in the length direction of the composite beam are correspondingly provided with sleeves capable of being movably connected with the end parts of negative reinforcement steel bars; and the sleeves are welded with the outer walls of the steel pipes. The structural form has the advantages that the weakening on the carrying force of the steel pipes due to the hole forming in the side walls of the steel pipes can be reduced; meanwhile, the welding workload is reduced; the construction is convenient; and the assemblage can be conveniently realized. In order to effectively transfer the load, a horizontal reinforcement plate is fixedly welded in a position, corresponding to the sleeves, of an inner cavity of the steel pipes.

Description

A kind of steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node
Technical field
What the present invention relates to is a kind of steel core concrete column and outsourcing U-shaped steel-concrete combination beam, especially a kind of steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node.
Background technology
The vertical member that steel core concrete column refers to fill concrete in steel pipe and formed, have that bearing capacity is high, plasticity and the advantage such as ductility is good, rigidity large, easy construction, fire resistance are good, receive the extensive concern of engineering circles in recent years, more and more applied in multi-rise building, bridge engineering.Different according to section form, steel core concrete column can be divided into concrete-filled circular steel tube column, rectangular steel-tube concrete column and polygon steel pipe concrete column.Outsourcing U-shaped steel-concrete combination beam be steel plate is directly welded or clod wash become band flanging U-shaped steel, then and top flange top concreting inner at U-shaped steel, and U-shaped steel and T section concrete to be linked together shared load by shear connector, have that intensity is high, good stability, ductility are good, refractoriness is good, a superior performance such as convenient of constructing.Thus, the structural system formed by steel core concrete column and outsourcing U-shaped steel-concrete combination beam has following significant superiority:
(1) characteristic of steel, concrete bi-material can be given full play to, material consumption is few: outsourcing U-shaped steel-concrete combination beam and concrete filled steel tube columns bearing capacity is high, rigidity is large, member section is significantly reduced, not only increase effectively space usable floor area, and decrease steel and concrete consumption, effectively reduce the consumption of resource;
(2) suitability for industrialized production degree is high: outsourcing U-shaped steel and steel pipe all can in plant produced, and its mechanization, commercialized degree are higher, and reliable in quality is stablized, and is conducive to realizing the integrated of Building technology and industrialization;
(3) fire resistance strengthens: outsourcing U-shaped steel and the interior concrete of filling of steel pipe are good refractory materials, and Absorbable rod heat, the heating up time of member for prolonging, strengthens the fire resistance of structure;
(4) Energy Consumption of Construction is low, speed of application is fast: primary structure member is not only by outsourcing U-shaped steel and steel pipe, and all can be used as the template of concreting, the supporting of slab form doublely can be done in the top flange that U-shaped steel is overhanging in addition, thus reduce template consumption, scaffold building and a die process, reduce situ wet workload, noise and dust, meet the building operations requirement of green ecological civilization environmental protection;
(5) MAT'L recycling rate is higher: such structural part material is steel, belongs to regrown material, and when Building life cycle end cycle, its structural steel can be recovered utilization;
(6) new materials such as the Light trabs supporting with structural system, composite floor plate can be adopted, there is good sound-insulating performance, meet the requirement of building energy conservation.
As can be seen here, the structural system that steel core concrete column and outsourcing U-shaped steel-concrete combination beam are formed has good Social benefit and economic benefit.Particularly along with the high speed development of the development of the national economy, the popularization of housing industrialization, the application prospect of this green structural system will be very wide.
In structural system, node, concerning most important beyond doubt structure, be the power transmission hinge between structural element, be directly connected to service behaviour and the safety of structure, and rational joint form is the prerequisite of developing new structural systen.But the application example of the structural system also not having outsourcing U-shaped steel-concrete combination beam and steel core concrete column to be formed both at home and abroad at present and correlative study data, mainly because available joint form is very deficient.Therefore, along with deepening continuously of studying component, the rational structure form of research outsourcing U-shaped steel-concrete combination beam and concrete filled steel tube column jointing gusset, is open up, promote the key technology that this green structural system applies in engineering, has important theory significance and practical value.
At present, there is the connected node form of three kinds of steel core concrete columns and outsourcing U-shaped steel-concrete combination beam: (1) enforced loop plane under the steel pipe arranged outside of compound beam base plate position, and with the overlap welding of compound beam base plate, compound beam side plate directly welds with steel pipe walls, and negative reinforcement by punching continuous through node area in steel pipe walls; (2) at the upper and lower enforced loop plane of steel pipe arranged outside of compound beam base plate and wing plate negative reinforcement position, compound beam base plate and lower enforced loop plane overlap welding, negative reinforcement disconnects in node area, and welds with upper enforced loop plane, and compound beam side plate directly welds with steel pipe walls; (3) for wide-flat beam, node welds the hogging moment steel plate of similar " shoulder pole ", at the steel pipe arranged outside outer ring plate of compound beam base plate position, compound beam base plate welds with outer ring plate, top flange and side plate adopt fillet weld to be directly connected with steel pipe walls.
The available form of existing steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node is little.Although the connection of steel core concrete column and outsourcing U-shaped steel-concrete combination beam can use for reference the Construction treatment of above-mentioned three kinds of connected nodes, there is following shortcoming in these three kinds of joint forms.
1, form of structure (1): negative reinforcement is through
(1) because compound beam base plate and lower enforced loop plane adopt overlap welding, under seismic loading, weld seam easily ftractures, and cannot meet shockproof requirements;
(2) due to the whole through node area of negative reinforcement, quantity that steel pipe walls punches is many, thus slackens larger to steel pipe bearing capacity, need to take corresponding reinforcement measure, as repair welding steel plate, stiffening rib, reinforcing bar etc., not only increase steel using amount, and increase difficulty of construction;
(3) because compound beam side plate and steel pipe walls adopt solder design, Site Welding workload is large, not only requires great effort time-consuming, and weldquality is difficult to ensure, is unfavorable for that major works uses.
2, form of structure (2): negative reinforcement and enforced loop plane weld type
(1) because compound beam base plate and lower enforced loop plane adopt overlap welding, under seismic loading, weld seam easily ftractures, and cannot meet shockproof requirements;
(2) because negative reinforcement is welded on upper enforced loop plane, moment of flexure is transmitted, so the quality requirement of this welding is very high to realize reinforcing bar.But the welding of reinforcing bar is generally site welding, not only welding quality is difficult to ensure, and due to the Action of Gravity Field of reinforcing bar, welding operation difficulty.In addition, compound beam side plate and steel pipe walls also adopt solder design, further increase on-the-spot welding job amount.The node structure effort of a large amount of welding operation of this need is time-consuming, causes long construction period, is unfavorable for that major works uses.
3, form of structure (3): hogging moment steel plate type
(1) because the hogging moment steel plate of the negative reinforcement in node by similar " shoulder pole " replaces, and on the overhanging top flange that hogging moment steel plate need be welded on U-shaped steel and steel column side wall, therefore, the type node is only applicable to wide-flat beam, cannot be applicable to the outsourcing U-shaped steel-concrete combination beam of common size, the scope of application is very limited.In addition, hogging moment steel plate need be welded on compound beam and steel pipe, further increases on-the-spot welding job amount;
(2) because compound beam side plate and steel pipe walls adopt solder design, Site Welding workload is large, not only requires great effort time-consuming, and weldquality is difficult to ensure, is unfavorable for that major works uses.
Summary of the invention
The technical problem to be solved in the present invention, be exactly for the deficiency existing for prior art, and a kind of steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node are provided, this node is when ensureing bonding strength, steel pipe walls can be avoided to produce the external surface distortion of lamellar tearing and steel pipe wallboard, avoid the weakening of steel pipe side-wall hole to its bearing capacity, and can effective transmitted load, reduce Site Welding workload.
This programme is achieved by the following technical measures: this steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node comprise through dividing plate and sash plate, described through dividing plate and sash plate are respectively arranged with pouring hole and air-vent, in described through dividing plate along the opposite end of compound beam length direction respectively with cut the U-shaped steel sole plate after limb and be connected by butt weld, the both ends of the surface up and down of described through dividing plate respectively with upper and lower two steel-pipe weldings; The sleeve that can be flexibly connected with negative reinforcement end is provided with along the opposite end of compound beam length direction is corresponding respectively in described steel pipe, described sleeve welds with the outer wall of steel pipe, and described sash plate is positioned at steel pipe inner chamber and sleeve portion corresponding position and is welded and fixed with steel pipe inner wall.
The center line of above-mentioned sleeve overlaps with the center line of negative reinforcement.
Above-mentioned sleeve is flexibly connected as being threaded with negative reinforcement end.
The biside plate of above-mentioned U-shaped steel is connected with junction plate by high-strength bolt, and described junction plate is connected with the outer wall of steel pipe in steel core concrete column by welding manner.
The welding manner of the outer wall of steel pipe in above-mentioned junction plate and steel core concrete column is fillet welding.
The limb length of cutting of above-mentioned U-shaped steel sole plate is: along the length direction of compound beam, and the length of outer wall of steel pipe is stretched out in one end of through dividing plate.
Above-mentioned through dividing plate arranges circular arc chamfering at dividing plate variable cross-section place, and the radius of described circular arc chamfering is more than or equal to 35mm.
Distance L between the butt weld of above-mentioned through dividing plate and U-shaped steel sole plate and the circular arc end points of circular arc chamfering is more than or equal to 20mm.
Above-mentioned upper and lower two steel pipes are with the butt weld of groove to be connected with being welded as of both ends of the surface up and down of through dividing plate, and the welding manner that described sleeve and outer wall of steel pipe adopt is that part through welding is connected with corner connection composite welds.
The cross section of above-mentioned steel pipe is rectangle, circle or polygon.
The beneficial effect of this programme can be learnt according to describing of such scheme, in this steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node, in order to avoid steel pipe walls produces the external surface distortion of lamellar tearing and post jamb plate, the through dividing plate running through steel pipe is set in the steel pipe at compound beam base plate place, steel pipe disconnects at through dividing plate place, upper and lower two steel pipes adopt with the both ends of the surface up and down of through dividing plate is with the butt weld of groove to be connected, butt weld is adopted to be connected with through dividing plate after U-shaped steel sole plate cuts limb, its weld seam is not easy to crack, bonding strength is high, anti-seismic performance is good.In addition, the sleeve that can be flexibly connected with negative reinforcement end is provided with along the opposite end of compound beam length direction is corresponding respectively in described steel pipe, described sleeve welds with the outer wall of steel pipe, and this welding job completes in factory, thus decreases Site Welding workload.This form of structure can reduce because on steel pipe sidewall, perforate causes the weakening to steel pipe bearing capacity, reduces welding job amount, constructability and realization assemblingization again simultaneously.In order to reduce Site Welding workload further, U-shaped steel side plate adopts high-strength bolt to be connected with steel pipe walls by junction plate, and junction plate is connected with steel pipe walls by fillet weld, is welded in factory and completes.In order to effectively transmit load, be fixedly welded with sash plate at steel pipe inner chamber and sleeve portion corresponding position.As can be seen here, compared with prior art, have outstanding substantive distinguishing features and significant progress, its beneficial effect implemented also is apparent in the present invention.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the specific embodiment of the invention.
Fig. 2 is A-A sectional drawing in Fig. 1.
Fig. 3 is B-B sectional drawing in Fig. 1.
Fig. 4 is the left TV structure schematic diagram of Fig. 1.
Fig. 5 is the plan structure schematic diagram of Fig. 1.
Fig. 6 is the three-dimensional broken section structural representation of the specific embodiment of the invention.
Fig. 7 is the structural representation of through dividing plate.
Fig. 8 is the structural representation of sash plate.
Fig. 9 is the main TV structure schematic diagram of concreting posterior nodal point.
Figure 10 is the left TV structure schematic diagram of concreting posterior nodal point.
Figure 11 is the hysteresis loop of test specimen A-1.
Figure 12 is the hysteresis loop of test specimen B-1.
Figure 13 is the hysteresis loop of test specimen C-1.
Figure 14 is the skeleton curve of three test specimens.
In figure: 1-steel pipe, 2-U shape steel, the through dividing plate of 3-, 4-negative reinforcement, 5-sleeve, 6-sash plate, 7-junction plate, 8-high-strength bolt, 9-shear connector, 10-weld seam, 11-circular arc chamfering, 12-pouring hole, 13-air-vent, 14-steel core concrete column, 15-compound beam.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, below by detailed description of the invention, and in conjunction with its accompanying drawing, this programme is set forth.
Cut limb: refer to and on request the base plate of U-shaped steel is cut a part.
Compound beam: the abbreviation referring to outsourcing U-shaped steel-concrete combination beam.
High-strength bolt: the bolt referring to high strength, belongs to a kind of standard component.Generally, the plain bolt of load ratio same specification that high-strength bolt can bear wants large.
A kind of steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node, as shown in the figure, it comprises through dividing plate 3 and sash plate 6, and described through dividing plate 3 and sash plate 6 are respectively arranged with pouring hole 12 and air-vent 13, and what guarantee steel pipe 1 inner concrete was built carries out smoothly.In described through dividing plate 3 along the opposite end of compound beam 15 length direction respectively with cut U-shaped steel 2 base plate after limb and be connected by butt weld, to ensure that weld seam 10 is not easy to crack, improve bonding strength and anti-seismic performance.The limb length of cutting of described U-shaped steel 2 base plate is: along the length direction of compound beam 15, and the length of steel pipe 1 outer wall is stretched out in one end of through dividing plate 3, welds to ensure that through dividing plate 3 and U-shaped steel 2 base plate can achieve a butt joint accurately.The both ends of the surface up and down of described through dividing plate 3 are welded with upper and lower two steel pipes 1 respectively, and upper and lower two steel pipes 1 are with the butt weld of groove to be connected with being welded as of both ends of the surface up and down of through dividing plate 3, to ensure that weld seam is not easy to crack, improve bonding strength.
In order to alleviate the stress level of U-shaped steel 2 base plate and through dividing plate 3 junction, through dividing plate 3 arranges circular arc chamfering 11 at dividing plate variable cross-section place, and the radius of described circular arc chamfering 11 is more than or equal to 35mm.Distance L between the butt weld 10 of described through dividing plate 3 and U-shaped steel 2 base plate and the circular arc end points of circular arc chamfering 11 is more than or equal to 20mm, to make weld seam 10 away from the variable cross-section place of through dividing plate 3, reduces the impact that stress concentrates butt welded seam 10.
The sleeve 5 that can be flexibly connected with negative reinforcement 4 end is provided with along the opposite end of compound beam 15 length direction is corresponding respectively in described steel pipe 1, preferred sleeve 5 is flexibly connected as being threaded with negative reinforcement 4 end, described sleeve 5 welds with the outer wall of steel pipe 1, and the welding manner that preferred sleeve 5 and steel pipe 1 outer wall adopt is that part through welding is connected with corner connection composite welds.The center line of described sleeve 5 overlaps with the center line of negative reinforcement 4, sleeve 5 is connected with the end thread of negative reinforcement 4, directly be screwed in sleeve 5 after the process of car silk is carried out in the end of negative reinforcement 4, namely the negative reinforcement 4 be connected with sleeve 5 disconnects at Nodes, this form of structure can reduce because on steel pipe 1 sidewall, perforate causes the weakening to steel pipe 1 bearing capacity, can reduce again welding job amount, constructability and realization assemblingization simultaneously.
Described sash plate 6 is positioned at steel pipe 1 inner chamber and corresponding position, sleeve 5 position, and the periphery of sash plate 6 and steel pipe 1 inwall are welded and fixed, and can be realized effective transmission of load by sash plate 6.
In order to reduce Site Welding workload, the biside plate of described U-shaped steel 2 is connected with junction plate 7 by high-strength bolt 8, described junction plate 7 is connected with steel pipe 1 outer wall in steel core concrete column 14 by welding manner, preferred junction plate 7 is fillet welding with the welding manner of steel pipe 1 outer wall in steel core concrete column 14, and this welding job completes in factory.
The cross section of described steel pipe 1 is rectangle, circle or polygon, and the scope of application of this node is wider.
Below by specific experiment, beneficial effect of the present invention is described.
One, test specimen explanation
Sample dimensions tested by table 1
Note: in table, test specimen dimensional units is mm
Test specimen A-1 in table is the telescopic node of dividing plate perforated rebar in the present invention; Test specimen B-1 is dividing plate perforated rebar clean cut system node, and itself and the negative reinforcement that is distinguished as of the present invention disconnect in node area; Test specimen C-1 is dividing plate through portion reinforcing bar penetration type node, itself and be of the present inventionly distinguished as a part of reinforcing bar and disconnect in node area, a part of reinforcing bar runs through node area.Compared with test specimen A-1, test specimen B-1, C-1 are except the connected mode difference of reinforcing bar, U-shaped steel side plate is not identical with the connected mode of steel pipe walls yet, and namely test specimen A-1 adopts high-strength bolt to be connected with steel pipe walls by junction plate, and test specimen B-1, C-1 and steel pipe walls directly adopt fillet weld to be connected.
Two, test conditions and method
Test adopts and applies vertical load at steel pipe 1 top, and compound beam 15 end applies the anti-seismic performance of the mode test node of low cycle repetitive load.During test, specimen joints be arranged in reaction frame, the lower end of steel pipe 1 is put in the ball hinged support be connected with ground, and the level bottom this support restraint steel pipe 1, vertically mobile and plane are rotated outward, allows freely to rotate in test specimen plane bottom steel pipe 1.Bottom steel pipe, cause the additional bending moment of node with eccentric support, when test specimen is installed, make steel pipe 1 cross-section centroid align with ball hinged support center as far as possible.In loading procedure, laterally offset is there is in order to prevent steel pipe 1, at the top of steel pipe 1, horizontal support is set, simultaneously in order to not retrain the rotation at steel pipe 1 top, arrange line in support and steel pipe 1 wall junction to cut with scissors, namely at the angle steel back side welding round steel of support front end, left and right, and slotted hole fastening bolt is set connects two supports.Steel pipe 1 top vertical load provides by being supported on the 200 tons of hydraulic jacks loaded on short column, and compound beam 15 end low cycle repetitive load is applied by 50 tons of MTS actuator that two are supported on reaction frame crossbeam, and the stroke of actuator is ± 350mm.
Three, the experimental data contrast of three kinds of test specimens
By carrying out the Experimental Study on Seismic Behavior research under Frequency Cyclic Static Loading to three kinds of heteroid nodes, complete documentation node is in the experimental data such as P-Δ hysteresis loop, skeleton curve of elasticity, surrender, strengthening and failure stage, investigate the anti-seismic performance indexs such as the bearing capacity of each category node, ductility, energy dissipation capacity, the anti-seismic performance of the different structure node of comparative analysis.
1, load (P)-displacement (Δ) hysteresis loop:
As can be seen from the hysteresis loop of three kinds of specimen joints, the hysteresis loop of test specimen A-1 is the fullest, and displacement during destruction of a node is comparatively large, shows good ductility and energy dissipation capacity; And test specimen B-1 ftractures due to the attachment weld of part reinforcing bar and outer ring plate, test specimen C-1 due to run through reinforcing bar generation slippage, two nodes development of deformation all insufficient, node reach capacity load time displacement less.
2, load (P)-displacement (Δ) skeleton curve:
The characteristic load determined by each specimen joints skeleton curve and characteristic displacement as shown in table 2, the positive payload values in table represents that joist support is subject to positive bending moment, and negative value represents that joist support is subject to hogging moment.
The characteristic load of each node of table 2 and characteristic displacement
As can be seen from Figure 11, Figure 12, Figure 13 and table 2, the supporting capacity of test specimen A-1 is apparently higher than test specimen B-1, C-1.
3, ductility and energy dissipation capacity:
The ductility and energy dissipation of table 3 test specimen
Test specimen is numbered μ E h e
A-1 2.73 1.27 0.202
B-1 2.21 0.89 0.14
C-1 2.35 1.14 0.182
The ductility factor μ of test specimen A-1, energy dissipation coefficient E, equivalent viscous h eobviously be greater than test specimen B-1, C-1, as can be seen here, the ductility of test specimen A-1 and energy dissipation capacity are obviously better than test specimen B-1, C-1, have good anti-seismic performance.
Can existing techniques in realizing be passed through without the technical characteristic described in the present invention, not repeat them here.The present invention is not limited in above-mentioned detailed description of the invention, the change that those of ordinary skill in the art make in essential scope of the present invention, remodeling, interpolation or replacement, also should belong to protection scope of the present invention.

Claims (10)

1. a steel core concrete column and outsourcing U-shaped steel-concrete combination beam connected node, it is characterized in that: it comprises through dividing plate and sash plate, described through dividing plate and sash plate are respectively arranged with pouring hole and air-vent, in described through dividing plate along the opposite end of compound beam length direction respectively with cut the U-shaped steel sole plate after limb and be connected by butt weld, the both ends of the surface up and down of described through dividing plate respectively with upper and lower two steel-pipe weldings; The sleeve that can be flexibly connected with negative reinforcement end is provided with along the opposite end of compound beam length direction is corresponding respectively in described steel pipe, described sleeve welds with the outer wall of steel pipe, and described sash plate is positioned at steel pipe inner chamber and sleeve portion corresponding position and is welded and fixed with steel pipe inner wall.
2. steel core concrete column according to claim 1 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: the center line of described sleeve overlaps with the center line of negative reinforcement.
3. steel core concrete column according to claim 1 and 2 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: described sleeve is flexibly connected as being threaded with negative reinforcement end.
4. steel core concrete column according to claim 3 and outsourcing U-shaped steel-concrete combination beam connected node, it is characterized in that: the biside plate of described U-shaped steel is connected with junction plate by high-strength bolt, and described junction plate is connected with the outer wall of steel pipe in steel core concrete column by welding manner.
5. steel core concrete column according to claim 4 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: the welding manner of the outer wall of steel pipe in described junction plate and steel core concrete column is fillet welding.
6. steel core concrete column according to claim 4 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: the limb length of cutting of described U-shaped steel sole plate is: along the length direction of compound beam, and the length of outer wall of steel pipe is stretched out in one end of through dividing plate.
7. steel core concrete column according to claim 6 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: described through dividing plate arranges circular arc chamfering at dividing plate variable cross-section place, and the radius of described circular arc chamfering is more than or equal to 35mm.
8. steel core concrete column according to claim 7 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: the distance L between the butt weld of described through dividing plate and U-shaped steel sole plate and the circular arc end points of circular arc chamfering is more than or equal to 20mm.
9. steel core concrete column according to claim 8 and outsourcing U-shaped steel-concrete combination beam connected node, it is characterized in that: described upper and lower two steel pipes are with the butt weld of groove to be connected with being welded as of both ends of the surface up and down of through dividing plate, and the welding manner that described sleeve and outer wall of steel pipe adopt is that part through welding is connected with corner connection composite welds.
10. steel core concrete column according to claim 9 and outsourcing U-shaped steel-concrete combination beam connected node, is characterized in that: the cross section of described steel pipe is rectangle, circle or polygon.
CN201510329922.1A 2015-06-15 2015-06-15 Connecting node for steel pipe concrete post and outside U-shaped steel and concrete composite beam Pending CN104912197A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105002930A (en) * 2015-07-16 2015-10-28 上海建工四建集团有限公司 Beam column joint structure constructed through steel annular plate and method of beam column joint structure
CN105002930B (en) * 2015-07-16 2017-03-29 上海建工四建集团有限公司 The beam-column node structure built using steel loop plate and its method
CN110863569A (en) * 2019-09-25 2020-03-06 北京工业大学 Sliding type compound steel pipe concrete column-beam joint and column-column connecting system
CN112922152A (en) * 2021-01-18 2021-06-08 罗洪湖 Steel pipe concrete beam column structure for building and manufacturing method thereof
CN113216380A (en) * 2021-05-24 2021-08-06 哈尔滨工业大学 Steel-concrete composite beam and concrete-filled steel tubular column joint and construction method

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