CN208473119U - A kind of novel steel tube concrete robustness node - Google Patents

A kind of novel steel tube concrete robustness node Download PDF

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Publication number
CN208473119U
CN208473119U CN201820619868.3U CN201820619868U CN208473119U CN 208473119 U CN208473119 U CN 208473119U CN 201820619868 U CN201820619868 U CN 201820619868U CN 208473119 U CN208473119 U CN 208473119U
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steel
angle
angle steel
concrete column
end plate
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胡鹰
杨永斌
庞晓平
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Chongqing University
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Chongqing University
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Abstract

The utility model discloses a kind of novel steel tube concrete robustness node, which includes steel core concrete column, I-beam, end plate and the angle steel of rectangular in cross-section;Its end plates is welded on I-shaped beam end and is fixed in the peripheral surface of steel core concrete column, angle steel I is W formula structure made of two right angle angle steel connect, steel core concrete column is arranged in right angle portions corner portion and the corresponding outside for being coated on end plate of two right-angle sides are located in the middle on angle steel I, anchor bolt sequentially passes through angle steel I, end plate and steel core concrete column from outside to inside and three tightens together, and two right-angle sides on angle steel I positioned at two sides are linked together by the corresponding web with two I-beams of anchor bolt.The structure improves the bearing capacity and ductility of join domain by increasing angle steel I, improves the stress performance of node, is capable of the safety and globality of effective guarantee structural system.

Description

A kind of novel steel tube concrete robustness node
Technical field
The utility model belongs to structural engineering field, and in particular to a kind of novel steel tube concrete robustness node.
Background technique
Since steel core concrete column has that bearing capacity is high, ductility is good and the distinguishing features such as easy for construction, it has been widely used In the engineering practices such as large-span structure, skyscraper.But previous Frame Joints of Concrete-Filled Steel Tube is mostly directly connected by anchor bolt It connects, there is the problems such as connection is unreliable, and construction is inconvenient, they restrict Concrete-filled tubular connections answering in engineering extensively With.
Summary of the invention
In view of this, improving the purpose of this utility model is to provide a kind of novel concrete filled steel tube robustness node The stress performance of node improves its connection reliability.
In order to achieve the above objectives, the utility model provides the following technical solutions:
A kind of novel steel tube concrete robustness node, the steel core concrete column including rectangular in cross-section further includes I-shaped Beam, end plate and angle steel I;The end plate is welded on I-shaped beam end and is fixed in the peripheral surface of steel core concrete column, institute Stating angle steel I is W formula structure made of two right angle angle steel connect, and it is mixed in steel pipe that right angle portions setting is located in the middle on angle steel I The corner portion of solidifying earth pillar and the corresponding outside for being coated on end plate of two right-angle sides, anchor bolt sequentially pass through from outside to inside angle steel I, end plate and Steel core concrete column simultaneously tightens together three, and two right-angle sides on angle steel I positioned at two sides pass through anchor bolt correspondence and two I-shapeds The web of beam links together.
Further, it is respectively and fixedly provided with end plate and I-beam on four faces of steel core concrete column, angle steel I is correspondingly arranged at steel pipe The four corners of concrete column and each angle steel I, which correspond to, to be coated on two abutting end plates and I-beam.
It further, further include the angle steel II being arranged between steel core concrete column and I-shaped flange of beam, the angle steel II is also W Formula structure, two outer side edges are correspondingly connected on steel core concrete column and each I-shaped flange of beam by anchor bolt.
Further, each I-beam that steel core concrete column surrounding is arranged in is in sustained height face.
Further, the angle steel I and angle steel II are stainless steel or refractory steel material.
Further, the anchor bolt is high strength stainless steel anchor bolt.
The utility model has the beneficial effects that:
(1) in this configuration, it is located in the middle on angle steel I in end plate is coated on by right angle portions, and two outer side edges are then right The web for the I-beam that should be disposed adjacent with two links together, and I one side of angle steel herein plays effect of contraction to end plate, Anchor bolt initially passes through angle steel I, is then passed through the setting of end plate, and improves anchor bolt to end plate fastening effect so that angle steel I, end plate and It is connected between steel core concrete column three more reliable;On the other hand, being correspondingly connected with the angle steel on end plate and I-beam web is work Word beam and end plate provide secondary connection, and commissure non-ductile destruction that may be present between the two is transformed to ductile fracture, So that the switching performance of structure entirety is more preferable, there is better bearing capacity and ductility.
(2) two right-angle side of centre of angle steel I is directly coated on the end plate between two edge of a wing of I-beam, angle herein Steel part can make the anchor bolt Impact direction of I-beam web two sides different, share the moment of flexure acted on node to reach, cut The effect of power and axle power, under the premise of guaranteeing anchor bolt rigidity, intensity, by presetting the weld strength between I-beam and end plate, The node can be made to be in controllable state during the work time.
(3) angle steel II is arranged between steel core concrete column and I-shaped flange of beam, i.e., between original I-shaped flange of beam and end plate Plastic hinge is increased again on the basis of welding, when being pressurized above I-beam, angle steel II, which can destroy the non-ductile of commissure, to be turned Become ductile fracture.
(4) it in the Concrete-filled tubular connections, is welded between I-beam and end plate, I-beam and steel core concrete column have angle steel II Connection has the connection of angle steel I between end plate and concrete filled steel tube intercolumniation, adjacent I-beam, total is combination connection, so that node Entirety is provided simultaneously with two kinds of failure mechanisms.Angle steel I, angle steel II and anchor bolt enhance the ductility and robustness of join domain, so that Node end plate possesses enough ductility conversion force-mechanisms occurring and destroying and forms secondary protection, i.e., angle steel I, II is in I-shaped Beam-ends capitiform substantially increases the cooperative transformation ability of I-beam at the plastic hinge of different directions, forms stretched wire effect and guarantees Progressive Collapse will not occur for structure;After having ensured that connecting node is destroyed in end plate weld joint region, connecting node still with Hinged form works on.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows Attached drawing is illustrated:
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram for having added angle steel II;
The positive schematic diagram of Fig. 2 of Fig. 3;
Fig. 4 is the Section A-A schematic diagram of Fig. 3.
Specific embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1, the concrete filled steel tube robustness node in the present embodiment, the concrete filled steel tube including rectangular in cross-section Column 1 further includes I-beam 2, end plate 3 and angle steel I 4;The end plate 3 is welded on 2 end of I-beam and is fixed on steel tube concrete In the peripheral surface of earth pillar 1, the angle steel I 4 is W formula structure made of two right angle angle steel connect, and is located at centre on angle steel I 4 Right angle portions corner portion and the corresponding outside for being coated on end plate 3 of two right-angle sides of steel core concrete column 1 be set, anchor bolt 5 by It is outer to sequentially pass through angle steel I 4, end plate 3 and steel core concrete column 1 to interior and three tightens together, and it is located at two on angle steel I 4 Two right-angle sides of side then pass through the corresponding web 22 with two I-beams of anchor bolt 5 and link together.
In this configuration, it is located in the middle on angle steel I 4 in end plate 3 is coated on by right angle portions, and two outer side edges then correspond to The web 22 for the I-beam being disposed adjacent with two links together, and I 4 one side of angle steel herein plays constraint to end plate 3 and makees With, the setting that anchor bolt 5 initially passes through angle steel I 4, is then passed through end plate 3, anchor bolt 5 is improved to 3 fastening effect of end plate, so that angle steel I 4, It is connected between 1 three of end plate 3 and steel core concrete column more reliable;On the other hand, it is correspondingly connected on end plate and I-beam web Angle steel provides secondary connection for I-beam and end plate, and commissure non-ductile destruction that may be present between the two is transformed to and is prolonged Property destroy so that the switching performance of structure entirety is more preferable, with better bearing capacity and ductility.
In the present embodiment, end plate 3 and I-beam 2, each I-shaped are respectively and fixedly provided on four faces of the steel core concrete column 1 of rectangle Beam is in sustained height face.Two right-angle sides correspondence among the angle steel I 4 of 1 four corners of steel core concrete column is set and is coated on two The outside of adjacent end plate 3, i.e., each end plate is by the corresponding cladding of two groups of angle steel I.In the structure, two right-angle side of centre of angle steel I is direct It is coated on the end plate between two edge of a wing 21 of I-beam, angle steel part herein can make the anchor bolt of 22 two sides of I-beam web 5 Impact directions are different, to achieve the effect that share the moment of flexure acted on node, shearing and axle power, guarantee anchor bolt rigidity, Under the premise of intensity, by presetting the weld strength between I-beam and end plate, the node can be made to be in during the work time can Control state.
It as in Figure 2-4, further include the angle being arranged between steel core concrete column 1 and I-shaped flange of beam 21 in the present embodiment Steel II 6, the angle steel II 6 are also W formula structure, and the both sides positioned at outside are correspondingly connected with by anchor bolt 5 in concrete filled steel tube thereon On column 1 and each I-shaped flange of beam 21, and corner bending structure in an intermediate position is then used for end plate of stepping down.Specifically, herein The setting of angle steel II 6 increases plastic hinge (I-shaped on the basis of original welding (welding between I-shaped flange of beam and end plate) again Bolted angle connection between flange of beam and steel core concrete column 1), when being pressurized above I-beam, the setting of angle steel II 6 can be commissure Non-ductile destruction be transformed into ductile fracture.
It in the Concrete-filled tubular connections, is welded between I-beam 2 and end plate 3, I-beam 2 and steel core concrete column 1 have angle steel II 6 connections have the connection of angle steel I 4, wherein angle steel II 6 is I-beam 2 and steel tube concrete between end plate 3 and steel core concrete column 1 Secondary connection between earth pillar 1, total include being rigidly connected and being flexibly connected two kinds of connection types, are connected for combination, simultaneously Have two kinds of failure mechanisms.
Angle steel I 4, angle steel II 6 and anchor bolt 5 enhance the ductility and robustness of join domain, even if so that node end plate is sent out Raw destroy also possesses enough ductility conversion force-mechanism formation secondary protections, i.e. angle steel I 4 and angle steel II 6 is in end of I beam The plastic hinge for forming different directions substantially increases the cooperative transformation ability of I-beam, forms stretched wire effect and guarantees structure not Progressive Collapse can occur;After having ensured that connecting node is destroyed in end plate weld joint region, connecting node is still with hinged Form works on.
Angle steel I 4 and angle steel II 6 herein can use ordinary steel, high-strength alloy steel, stainless steel or refractory steel material;Anchor High strength stainless steel, high-strength alloy steel or high-strength refractory steel can be selected in bolt material, can also be rolled products of ordinary high-strength anchor bolt certainly, Structure can be staight scissors anchor bolt or blind anchor bolt.Other kinds of steel also can be selected in angle steel I 4 and angle steel II 6, by reasonable Angle steel and anchor bolt material are selected, the deformability and refractory ability for enhancing this junction can be corresponded to, to further improve node Stress performance.
Finally, it is stated that preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage Solution, can make various changes, without departing from the utility model claims book institute to it in the form and details The range of restriction.

Claims (5)

1. a kind of novel steel tube concrete robustness node, the steel core concrete column including rectangular in cross-section, it is characterised in that: also Including I-beam, end plate and angle steel I;The end plate is welded on I-shaped beam end and is fixed on the outer weekly form of steel core concrete column On face, the angle steel I is W formula structure made of two right angle angle steel connect, and right angle portions setting is located in the middle on angle steel I and is existed The corresponding outside for being coated on end plate of the corner portion of steel core concrete column and two right-angle sides, anchor bolt sequentially pass through from outside to inside angle steel I, End plate and steel core concrete column simultaneously tighten together three, on angle steel I positioned at two sides two right-angle sides by anchor bolt it is corresponding and The web of two I-beams links together;It further include the angle steel II being arranged between steel core concrete column and I-shaped flange of beam, it is described Angle steel II is also W formula structure, and two outer side edges are correspondingly connected on steel core concrete column and each I-shaped flange of beam by anchor bolt.
2. concrete filled steel tube robustness node according to claim 1, it is characterised in that: four faces of steel core concrete column On be respectively and fixedly provided with end plate and I-beam, angle steel I is correspondingly arranged at the four corners of steel core concrete column and the correspondence of each angle steel I is coated on On two abutting end plates and I-beam.
3. concrete filled steel tube robustness node according to claim 2, it is characterised in that: be arranged in steel core concrete column four Each I-beam in week is in sustained height face.
4. concrete filled steel tube robustness node according to claim 1, it is characterised in that: the angle steel I is with angle steel II Stainless steel or refractory steel material.
5. concrete filled steel tube robustness node according to claim 1, it is characterised in that: the anchor bolt is high strength stainless steel Anchor bolt.
CN201820619868.3U 2018-04-27 2018-04-27 A kind of novel steel tube concrete robustness node Active CN208473119U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108331256A (en) * 2018-04-27 2018-07-27 重庆大学 A kind of novel steel tube concrete robustness node
CN109881781A (en) * 2019-02-15 2019-06-14 同济大学 A kind of laminated wood frame system and its construction method based on regeneration concrete fire resisting

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108331256A (en) * 2018-04-27 2018-07-27 重庆大学 A kind of novel steel tube concrete robustness node
CN109881781A (en) * 2019-02-15 2019-06-14 同济大学 A kind of laminated wood frame system and its construction method based on regeneration concrete fire resisting
CN109881781B (en) * 2019-02-15 2021-10-08 同济大学 Recycled concrete fire-resistant based laminated wood frame system and construction method thereof

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