CN102287008A - Asymmetrical haunched aseismatic node for beam flanges of steel structure - Google Patents

Asymmetrical haunched aseismatic node for beam flanges of steel structure Download PDF

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Publication number
CN102287008A
CN102287008A CN2011101832270A CN201110183227A CN102287008A CN 102287008 A CN102287008 A CN 102287008A CN 2011101832270 A CN2011101832270 A CN 2011101832270A CN 201110183227 A CN201110183227 A CN 201110183227A CN 102287008 A CN102287008 A CN 102287008A
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China
Prior art keywords
node
steel
aseismatic
wing
steel structure
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Pending
Application number
CN2011101832270A
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Chinese (zh)
Inventor
王燕
刘芸
刘永娟
董建丽
郁有升
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Qingdao University of Technology
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Qingdao University of Technology
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Application filed by Qingdao University of Technology filed Critical Qingdao University of Technology
Priority to CN2011101832270A priority Critical patent/CN102287008A/en
Publication of CN102287008A publication Critical patent/CN102287008A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a novel aseismatic node for a steel structure. The novel aseismatic node is characterized in that: beam end flanges at a beam column connecting node of the steel structure are asymmetrically reinforced; an upper beam flange is reinforced in an inclined haunching way; the inclined haunching height is smaller than the total thickness of a concrete slab; and a lower beam flange is reinforced by a horizontal steel plate. The node form is simple to weld and manufacture; a plastic hinge in a beam end welding seam area can be forced to move outwards under the action of a strong earthquake, and requirements on an aseismatic design of the node can be met; a building space is not occupied, and requirements on the using function of a house building are met; and the asymmetrical haunched aseismatic node can be applied to the aseismatic node of the steel structure of a multi-storey building.

Description

The steel structure girder edge of a wing asymmetric haunch type shock-resistant node
Affiliated technical field
Patent of the present invention relates to a kind of steel structure girder column jointing gusset, especially relates to a kind of steel work novel earthquake-proof node.
Background technology
At present, solve the beam column node that is rigidly connected the problem of brittle fracture takes place under severe earthquake action, generally by two approach, the one, flange of beam is carried out local weaken (RBS node) near the failure position of beam column join domain weld seam is moved outward; The 2nd, at the local beam section that strengthens of join domain, improve node ductility, abbreviate reinforced node as.The common purpose of dual mode all is that plastic hinge is shifted out from the welding node zone, avoids plastic hinge to appear at the relatively poor welding point place of toughness, guarantees that node has enough ductility.Weakening type node is to be the purpose of design that cost reaches plasticity development under the severe earthquake action with the bearing capacity that weakens beam section, reduce beam, has big drawback.Reinforced node adopts types such as beam-ends haunch, floor reinforcement, board-like reinforcement.Beam-ends haunch and floor are strengthened two category nodes and are all adopted the connected mode of strengthening in the upper and lower edge of a wing of beam symmetry, because the bottom flange has reduced the building headway after setting up armpit plate or floor, have a strong impact on the attractive in appearance and function of use of building.And the stiffener of the process for machining and manufacturing complexity of board-like reinforced node, particularly top flange with formed the twice weld seam after post is connected, cause very big welding stress, the node mechanical property is subjected to very big influence.
Summary of the invention
Purpose of the present invention is exactly that provide in order to overcome the defective that above-mentioned prior art exists a kind of promptly can guarantee to force under the violent earthquake effect outside the plastic hinge of beam-ends welded seam area and move, satisfy the requirement of node seismic design, do not take architectural space again, satisfy the function of use requirement of building construction, simultaneously, simple, welding stress of node process for machining and manufacturing and the less a kind of new steel structure shock-resistant node of welding deformation.
Purpose of the present invention can be achieved through the following technical solutions: the steel structure girder edge of a wing asymmetric haunch type shock-resistant node, it is characterized in that, this steel-structure beam-column node adopts asymmetric reinforcement mode to the beam-ends edge of a wing, adopt oblique haunched slab to strengthen to the top flange of beam, the height of oblique haunch adopts horizontal steel plate to strengthen less than 200mm (concrete floor gross thickness) to the bottom flange of beam.
Angle between described oblique haunched slab and the flange of beam is 30 °~45 °, between oblique haunched slab and the flange of beam a vertical floor of triangle is set, and purpose is in order to increase the rigidity of haunched slab.The fillet weld welding is adopted with beam top flange, the post edge of a wing respectively in armpit plate two ends.Vertical floor adopts the fillet weld welding with armpit plate, beam top flange and the post edge of a wing respectively, occurs intersecting for avoiding weld seam, and three angles of the vertical floor of diabolo are made otch and handled.Described bottom flange is strengthened adopting the monolateral groove weld seam of belt material plate to be connected between steel plate and the post edge of a wing, and the bottom flange of beam directly is not connected with pillar, is connected but stitch with reinforcement steel plate employing weld all around.
Technical advantage of the present invention is:
Adopt asymmetric reinforced shock-resistant node, increase node ductility and can improve the node anti-seismic performance, under the violent earthquake effect, realize moving outside the plastic hinge.
Increase the building headway, satisfy the function of use of building.
Compare with the reinforced node of symmetrical expression, the node processing and manufacturing is simple, reduces the welding stress of bean column node.
Description of drawings
Fig. 1 is a shock-resistant node three-dimensional structure schematic diagram of the present invention;
Fig. 2 is the positive facade structural representation of shock-resistant node of the present invention;
Fig. 3 is the 1-1 sectional drawing of Fig. 2;
Fig. 4 is the 2-2 sectional drawing of Fig. 2;
Fig. 5 is the 3-3 sectional drawing of Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and concrete enforcement novel earthquake-proof node of the present invention is elaborated.
Embodiment such as Fig. 1~shown in Figure 3, the bottom flange stiffener adopts full penetration groove weld seam to be connected by the liner plate and the post edge of a wing, and after the welding of full penetration groove weld finished, liner plate still kept.After girder steel was in place, the top flange of beam was connected with the post edge of a wing by liner plate, and after the welding of full penetration groove weld finished, liner plate still kept.The bottom flange adopts three weld all around seams to be connected with stiffener, does not weld with the post edge of a wing.The web of girder steel is connected with the shearing junction plate by high-strength bolt, gives birth to the processing mode of red rust behind the contact surface employing shot-peening, and the shearing junction plate adopts twin fillet wolt to be connected with the post edge of a wing, and the thickness of shearing junction plate should be complementary with the web thickness of girder steel.Oblique haunched slab adopts full penetration groove weld seam to be connected with the post edge of a wing, adopts fillet weld to be connected with the girder steel edge of a wing.Web all is provided with weld seam up and down by the hole, and the welding of full penetration groove is adopted on the post stiffening rib and the post edge of a wing, and strong design principles such as utilization designs oblique haunched slab and edge of a wing stiffener, and the beam-ends plastic hinge is moved outward.
As shown in Figure 4, oblique haunched slab is slightly narrower than flange of beam, between oblique haunched slab and the flange of beam a vertical floor of triangle is set.Full penetration groove weld seam is adopted with beam top flange, the post edge of a wing respectively in armpit plate two ends.Vertical floor adopts the fillet weld welding with armpit plate, beam top flange and the post edge of a wing respectively, occurs intersecting for avoiding weld seam, and three angles of the vertical floor of diabolo are made otch and handled.
As shown in Figure 5, the bottom flange stiffener is connected by four sides weld all around seam with flange of beam.

Claims (2)

1. the asymmetric haunch type in steel structure girder edge of a wing shock-resistant node, the shock-resistant node that a kind of steel structure girder is connected with post, the asymmetric strong form that adds is adopted on the beam-ends edge of a wing to girder steel, it is characterized in that: adopt oblique haunch steel plate to strengthen the girder steel top flange, oblique haunch steel plate adopts vertical weld seam to be connected with the steel column edge of a wing, and oblique haunch steel plate adopts side seam to be connected with the girder steel edge of a wing.
2. the steel structure girder according to claim 1 edge of a wing asymmetric haunch type shock-resistant node, it is characterized in that: adopt horizontal steel plate to strengthen the bottom flange of girder steel, level is strengthened steel plate and is adopted the groove weld seam to be connected with steel column, and level is strengthened steel plate and adopted four sides weld all around seam to be connected with girder steel.
CN2011101832270A 2011-07-01 2011-07-01 Asymmetrical haunched aseismatic node for beam flanges of steel structure Pending CN102287008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101832270A CN102287008A (en) 2011-07-01 2011-07-01 Asymmetrical haunched aseismatic node for beam flanges of steel structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101832270A CN102287008A (en) 2011-07-01 2011-07-01 Asymmetrical haunched aseismatic node for beam flanges of steel structure

Publications (1)

Publication Number Publication Date
CN102287008A true CN102287008A (en) 2011-12-21

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Cited By (14)

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Publication number Priority date Publication date Assignee Title
CN102758499A (en) * 2012-07-05 2012-10-31 北京工业大学 Precast prestressed steel girder with post-seismic restorable function
CN102776957A (en) * 2012-08-20 2012-11-14 上海通用金属结构工程有限公司 Anti-seismic building node and manufacturing process thereof
CN102979174A (en) * 2012-11-26 2013-03-20 北京工业大学 Multi-story high-rise assembled steel structure frame system
CN103541430A (en) * 2013-10-31 2014-01-29 同济大学建筑设计研究院(集团)有限公司 Support connection structure for steel structure corridor
CN103669650A (en) * 2013-12-19 2014-03-26 北京工业大学 Novel special-shaped steel column frame-steel plate shear wall easy to restore after earthquake
CN103669567A (en) * 2013-12-19 2014-03-26 北京工业大学 Special-shaped steel column-prestress eccentric supporting frame easy to restore after earthquake
CN103669570A (en) * 2013-12-19 2014-03-26 北京工业大学 Special-shaped steel column-prestress central supporting frame easy to restore after earthquake
CN106677336A (en) * 2016-12-30 2017-05-17 北京工业大学 Connecting joint structure of square concrete filled steel tubular column and I-shaped section steel beam
CN106703184A (en) * 2016-12-30 2017-05-24 北京工业大学 Connection node construction of concrete-filled square steel tube column and rectangular section steel beam
CN106703285A (en) * 2016-12-13 2017-05-24 国核电力规划设计研究院 Shearing type eccentric support energy consumption girder section structure
CN106760606A (en) * 2016-12-29 2017-05-31 清华大学 A kind of steel-structure beam-column node haunch reinforcing construction and preparation method
CN107143043A (en) * 2017-07-13 2017-09-08 重庆大学 One kind flexible connection node
CN110984381A (en) * 2019-12-25 2020-04-10 武汉科技大学 Node for connecting steel structure frame beam column
CN112681121A (en) * 2020-12-18 2021-04-20 河海大学 Elastic connecting device for controlling longitudinal deformation of multi-span long-connection-curve continuous rigid frame bridge

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102758499B (en) * 2012-07-05 2015-01-07 北京工业大学 Precast prestressed steel girder with post-seismic restorable function
CN102758499A (en) * 2012-07-05 2012-10-31 北京工业大学 Precast prestressed steel girder with post-seismic restorable function
CN102776957A (en) * 2012-08-20 2012-11-14 上海通用金属结构工程有限公司 Anti-seismic building node and manufacturing process thereof
CN102979174A (en) * 2012-11-26 2013-03-20 北京工业大学 Multi-story high-rise assembled steel structure frame system
CN102979174B (en) * 2012-11-26 2015-06-17 北京工业大学 Multi-story high-rise assembled steel structure frame system
CN103541430A (en) * 2013-10-31 2014-01-29 同济大学建筑设计研究院(集团)有限公司 Support connection structure for steel structure corridor
CN103541430B (en) * 2013-10-31 2015-12-30 同济大学建筑设计研究院(集团)有限公司 A kind of support connection structure for steel structure corridor
CN103669567A (en) * 2013-12-19 2014-03-26 北京工业大学 Special-shaped steel column-prestress eccentric supporting frame easy to restore after earthquake
CN103669570A (en) * 2013-12-19 2014-03-26 北京工业大学 Special-shaped steel column-prestress central supporting frame easy to restore after earthquake
CN103669567B (en) * 2013-12-19 2015-11-18 北京工业大学 Easily steel hetermorphiscal column-prestressing force accentric support frame is repaired after a kind of shake
CN103669650A (en) * 2013-12-19 2014-03-26 北京工业大学 Novel special-shaped steel column frame-steel plate shear wall easy to restore after earthquake
CN106703285A (en) * 2016-12-13 2017-05-24 国核电力规划设计研究院 Shearing type eccentric support energy consumption girder section structure
CN106703285B (en) * 2016-12-13 2018-12-04 国核电力规划设计研究院 A kind of shearing-type accentric support active beam link structure
CN106760606A (en) * 2016-12-29 2017-05-31 清华大学 A kind of steel-structure beam-column node haunch reinforcing construction and preparation method
CN106677336A (en) * 2016-12-30 2017-05-17 北京工业大学 Connecting joint structure of square concrete filled steel tubular column and I-shaped section steel beam
CN106703184A (en) * 2016-12-30 2017-05-24 北京工业大学 Connection node construction of concrete-filled square steel tube column and rectangular section steel beam
CN107143043A (en) * 2017-07-13 2017-09-08 重庆大学 One kind flexible connection node
CN110984381A (en) * 2019-12-25 2020-04-10 武汉科技大学 Node for connecting steel structure frame beam column
CN112681121A (en) * 2020-12-18 2021-04-20 河海大学 Elastic connecting device for controlling longitudinal deformation of multi-span long-connection-curve continuous rigid frame bridge
CN112681121B (en) * 2020-12-18 2022-05-10 河海大学 Elastic connecting device for controlling longitudinal deformation of multi-span long-connection-curve continuous rigid frame bridge

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Application publication date: 20111221