CN200999389Y

CN200999389Y - Panel point for steel pipe concrete column and reinforced concrete beam

Info

Publication number: CN200999389Y
Application number: CNU2007200471522U
Authority: CN
Inventors: 季静; 韩小雷; 郑宜; 王燕珺
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2007-01-05
Filing date: 2007-01-05
Publication date: 2008-01-02
Anticipated expiration: 2017-01-05

Abstract

The utility model provides a node of concrete filled steel tubular column and a reinforced concrete beam. A hidden piercing bracket of the node goes through a steel tube and is intersected and welded in the steel tube; the part intersected with the steel tube is welded on both sides; a hoop is welded on a steel bracket on the outer side of the steel tube; the end of a panel radial rebar is hooked on the hoop flexibly and extends to the bottom of the panel; a beam bar screw sleeve is welded on the end of the steel bracket in alignment with the main reinforcement position. The quantities and diameter of the radial rebar and the diameter of the hoop are determined by calculating the size of the steel bracket, After finishing welding between the steel tube and the steel bracket, the hoop and the steel bracket and the screw sleeve and the steel bracket in the plant, arranging the panel radial rebar evenly on site and bonding and screwing the beam bar and the screw sleeve tightly, the node can be processed; after the bonding of the steel bar is finished according to the normal construction procedure, the concrete is poured for others. The node transmits force directly without ring beams, which can control the expanding of the cracks at the connection of the slab column effectively and is convenient to construct, thus having a bright engineering application prospect.

Description

The node of steel core concrete column and reinforced concrete beam

Technical field

The utility model relates to the Structural Engineering field in the civil engineering, specifically is meant the node structure of a kind of steel core concrete column and reinforced concrete beam.

Background technology

Since middle 1960s concrete filled steel tube introduce China, be widely used in during high level and super highrise building, Longspan Bridge build with its superior mechanical property.Owing to the effect of contraction of steel pipe to fill concrete, concrete is in the stress state of three-dimensional compression, thereby can give full play to its compressive strength on the one hand; On the other hand because concrete filling effect, improved steel pipe is resisted flexing under responsive to axial force ability.This very reasonably combination of materials of encased structures, can give full play to and utilize the characteristics of steel and concrete material, on performance, reach mutual supplement with each other's advantages, has plasticity and toughness preferably when improving the component load-bearing ability again, for the application of high-strength concrete and high-strength steel provides new approach.Adopt encased structures can save a large amount of constructional materialss and easy construction, economic benefit also is conspicuous.

The design of steel tube concrete beam and column node directly has influence on integral rigidity, stress performance and the safety of structure, also has influence on the difficulty or ease and the programming of construction, thereby becomes the key link in the encased structures design.But because the joint structure complexity of steel core concrete column, power transmission is unclear, and the perfect joint structure and the theory of computation of a cover also do not arranged so far, remains further experimental study and theory analysis.Existing node pattern commonly used comprises: strengthen ring type node, grappling formula node, reinforcing bar circulating type node, reinforced concrete circle beam node etc., and these nodes all have the reinforcing ring structure.But under the requirement of mostly building and decorative design, can not adopt the joint form of band beam, thus press for a kind of have good stress performance not with the node structure of strengthened ring beam.

The utility model content

The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of not band beam, power transmission clear and definite, can effectively control the carrying out of crack, sheet-pile junction, the steel core concrete column of easy construction and the node of reinforced concrete beam.

The purpose of this utility model is achieved through the following technical solutions:

The node of a kind of steel core concrete column and reinforced concrete beam comprises I-shaped dark punching steel corbel, ring muscle, the radiation of plate face muscle, beam main tendon screw shell and beam main tendon; Described 4 steel corbels pass steel pipe, intersect and welding each steel corbel and the two-sided welding of steel pipe intersection in steel duct; Described ring muscle is welded on each steel corbel of the steel pipe outside, the end bending of described a plurality of plate faces radiation muscle, be radial evenly be hooked in around the ring muscle on, and extend at the bottom of the floor plate plate; Described beam main tendon screw shell is welded on each steel corbel end, and described beam main tendon is connected with the beam main tendon screw shell.

For further realizing the utility model purpose, twin fillet wolt is adopted in the welding of described steel corbel.Described ring muscle is welded on 20 millimeters places, the steel pipe outside, steel corbel upside.Described plate face radiation muscle end is bent into 90 degree and is hooked on the ring muscle, and ties with steel wire, extends at the bottom of the plate.Described beam main tendon screw shell total length fillet weld is welded on the steel corbel, is located on the same line with beam main tendon.

The relative prior art of the utility model has following advantage and beneficial effect:

(1) power transmission is clear and definite, and the utility model utilizes the edge of a wing of punching bracket and web to bear beam-ends moment of flexure and shearing, at the top flange of bracket welding ring muscle, is used to bear the pulling force that floor radiation muscle transmits.

(2) band beam not, the utility model is the same with normal reinforced concrete beam post node from the appearance, can satisfy building and decorative design requirement well.

(2) can control carrying out of crack, sheet-pile junction well, plate face radiation muscle evenly anchors in the ring muscle, can control carrying out of reinforced concrete floor and crack, steel core concrete column junction effectively, the pulling force of its transmission is born by the ring muscle that is welded on the steel corbel top flange.

(3) easy construction, the welding of steel pipe, ring muscle, beam main tendon screw shell and steel corbel all can be finished in factory, need finish being threaded and general reinforcing bar binding work of beam main tendon for on-the-spot, significantly reduce on-the-spot welding job amount, can guarantee weldquality better.

Description of drawings

Fig. 1 is the structural representation of the utility model novel steel tube concrete column and steel concrete girder connection.

Fig. 2 be among Fig. 1 A-A to sectional view.

Fig. 3 be among Fig. 1 B-B to sectional view.

Fig. 4 be among Fig. 1 C-C to sectional drawing.

Fig. 5 be among Fig. 1 D-D to sectional drawing.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

Fig. 1 is the concrete structure figure of this steel core concrete column and reinforced concrete beam node structure, as shown in the figure, this steel core concrete column comprises steel pipe 1, steel corbel 2, ring muscle 3, plate face radiation muscle 4, beam main tendon screw shell 5, beam main tendon 6 with the reinforced concrete beam node structure.4 I-shaped dark punching steel corbels 2 pass steel pipe 1 and intersect in pipe and welding, and ring muscle 3 is welded on steel corbel 2 top flanges, and 7 plate face radiation muscle 4 are evenly distributed between the beam, and extend at the bottom of the floor plate plate; Screw shell 5 twin fillet wolts are welded on the edge of a wing, steel corbel upper end, with beam main tendon 6 positions point-blank.

Fig. 2 be this steel core concrete column with the reinforced concrete beam node structure in the sectional view of steel corbel 2 and steel pipe 1, screw shell 5 and ring muscle 3 annexations.As shown in Figure 2, I-shaped dark punching steel corbel 2 welds by fillet weld 7 with steel pipe 1; Ring muscle 3 is welded on steel corbel 2 top flanges, from 20 millimeters places of steel pipe 1 outer wall; Screw shell 5 is welded on the steel corbel top flange, and beam main tendon 6 is screwed in the screw shell 5.

Fig. 3 is the annexation sectional view of steel corbel 2 in steel pipe 1 inside, and two brackets adopt butt weld 8 welding at place, the edge of a wing, and the web place adopts fillet weld 7 welding.

Fig. 4 is the sectional drawing of steel corbel 2 and screw shell 5 junctions, 5 places, last bottom flange that are welded on steel corbel 2 by fillet weld 7 respectively of thread bush.

Fig. 5 is the junction sectional drawing of plate face radiation muscle 4 with ring muscle 3; plate face radiation muscle 4 curves an angle of 90 degrees and is hooked on the ring muscle 3; its height h determines that according to the thickness of floor in the actual engineering when slab thickness was H, then height h deducted the thickness of 2 times of concrete covers for slab thickness H.

This steel core concrete column is as follows with the process of reinforced concrete beam node structure:

The first step: determine the steel corbel size according to the size of concrete beam; choosing of steel corbel height is according to concrete beam depth of section deduction protective layer thickness and bar diameter; flange width is then with beam section width deduction protective layer thickness, and bracket stretches out the length of steel pipe and determines according to the weld length and the structure requirement of screw shell and bracket.The steel corbel thickness of slab obtains according to element bearing capacity, considers reinforcing bar and steel plate simultaneously, the weld bead height between steel plate and the steel plate.

Second step: according to the quantity of steel pipe sizes option board face radiation muscle, the steel pipe that general diameter is 1 meter needs evenly to place 7 plate face radiation muscle.Variation according to diameter of steel tube can increase or reduce radiation muscle quantity as one feels fit.

The 3rd step: finish welding, ring muscle and the welding of steel corbel and the welding job of screw shell and steel corbel of punching steel corbel and steel pipe in factory.

The 4th step: finish the work that beam main tendon end pier is slightly opened the screw thread silk before construction, during site operation, beam main tendon and screw shell are tightened; Plate face radiation muscle is hooked on the ring muscle and evenly arranges, uses steel wire lashing.

The 5th step: according to common construction sequence colligation plate muscle and beam muscle, quality inspection after-pouring concrete gets final product.

In this steel core concrete column and the reinforced concrete beam node structure, steel pipe, steel corbel adopt Q345, reinforcing bar HRB335, and concrete strength C35, welding rod adopts the E50 type, and solder flux 5014, weld seam reach the first-order weld quality requirement.

Said, can realize the utility model preferably.

Claims

1, the node of a kind of steel core concrete column and reinforced concrete beam is characterized in that comprising I-shaped dark punching steel corbel, ring muscle, the radiation of plate face muscle, beam main tendon screw shell and beam main tendon; Described 4 steel corbels pass steel pipe, intersect and welding steel corbel and the two-sided welding of steel pipe intersection in steel duct; Described ring muscle is welded on each steel corbel in the steel pipe outside, the end bending of described a plurality of plate faces radiation muscle, be radial evenly be hooked in around the ring muscle on, and extend at the bottom of the floor plate plate; Described beam main tendon screw shell is welded on each steel corbel end respectively, and described beam main tendon is connected with the beam main tendon screw shell.

2,, it is characterized in that twin fillet wolt is adopted in the welding of described steel corbel according to the node of described steel core concrete column of claim 1 and reinforced concrete beam.

3,, it is characterized in that described ring muscle is welded on 20 millimeters places, the steel pipe outside, steel corbel upside according to the node of described steel core concrete column of claim 1 and reinforced concrete beam.

4, according to the node of described steel core concrete column of claim 1 and reinforced concrete beam, it is characterized in that described plate face radiation muscle end is bent into 90 degree and is hooked on the ring muscle, and tie with steel wire, extend at the bottom of the plate.

5,, it is characterized in that described beam main tendon screw shell total length fillet weld is welded on the steel corbel, is located on the same line with beam main tendon according to the node of described steel core concrete column of claim 1 and reinforced concrete beam.