CN201722786U - Compound steel tube concrete outer steel tube-disconnection ring beam node - Google Patents

Compound steel tube concrete outer steel tube-disconnection ring beam node Download PDF

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Publication number
CN201722786U
CN201722786U CN2010202458276U CN201020245827U CN201722786U CN 201722786 U CN201722786 U CN 201722786U CN 2010202458276 U CN2010202458276 U CN 2010202458276U CN 201020245827 U CN201020245827 U CN 201020245827U CN 201722786 U CN201722786 U CN 201722786U
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China
Prior art keywords
concrete
steel
compound
ring
node
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Expired - Fee Related
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CN2010202458276U
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Chinese (zh)
Inventor
张玉芬
赵均海
张志权
周天华
魏雪英
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Changan University
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Changan University
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Abstract

The utility model discloses a compound steel tube concrete outer steel tube-disconnection ring beam node, relating to the connection of compound steel tube concrete columns and reinforced concrete horizontal members. Outer steel tubes of the compound steel tube concrete column in joints are disconnected, and inner steel tubes are continuously connected from top to bottom; the inner walls of the outer steel tubes are welded with shearing-resistance studs, vertically connected reinforcing steel are inserted to the inner sides of the outer steel tubes with upper subsections and lower subsection, and hooping bars are bound on the vertically connected reinforcing steel to form a vertical reinforcing steel cage for restraining concrete in a node core area; reinforcing steel in the floor reinforced concrete members are continuously connected around the inner steel tubes in the node, and a reinforced concrete ring beam is poured outside the node core area; a plurality of annular stressed reinforcing steel and radiative ring beam hooping bars for fixing the annular stressed reinforcing steel are configured in the ring beam; and the concrete outside the inner steel tubes in the node and the ring beam concrete are integrated together so that the node has strong integrity and can reliably deliver the bending moment, the shearing force and the shaft force of the node. The compound steel tube concrete outer steel tube-disconnection ring beam node has the advantages of simple design, low manufacturing cost, convenient construction and good mechanical property and is suitable for mechanical production.

Description

The outer discontinuous tube ring beam joint of compound concrete filled steel tube
Technical field
The utility model relates to the joint structure in a kind of structural engineering, particularly a kind of outer discontinuous tube ring beam joint of compound steel core concrete column.
Background technology
Concrete filled steel tube is through years of development, along with its more and more widely application in Structural Engineerings such as highrise building, long span bridge beam, on the concrete basis of conventional steel, begin to adopt some novel steel tube concrete heavy duty posts both at home and abroad, the compound encased structures of steel pipe in promptly in single concrete filled steel tube, being provided with again.Compound concrete filled steel tube is confined concrete better, when reducing the relative cross-section area, reached and improved the purpose of columns bearing capacity, ductility and fire resistance, and had the very high anti-ability of collapsing, can in the structure in earthquake region doughtily, use, have broad application prospects.And the superstructure of China's great majority building adopts reinforced concrete beam and plate, one of key of applying compound steel core concrete column is to solve being connected of steel core concrete column and reinforced concrete beam and plate, because connected mode is different, its performance difference is very big, therefore, become the focus of those skilled in the art's research.
Summary of the invention
The purpose of this utility model is, a kind of simplicity of design, easy construction, mechanical property is good and cost the is low outer discontinuous tube ring beam joint of compound concrete filled steel tube are provided.
In order to realize above-mentioned task, the utility model is achieved by following technical measures:
The outer discontinuous tube ring beam joint of a kind of compound concrete filled steel tube, relate to being connected of compound steel core concrete column and steel concrete horizontal member, it is characterized in that, in compound steel core concrete column and floor steel concrete horizontal member junction, the outer steel pipe of compound steel core concrete column is not communicated with at the floor place, and interior steel pipe connects up and down continuously; The inwall of outer steel pipe a is welded with the shearing resistance peg, and vertical connecting reinforcement inserts the outer steel pipe inboard of two segmentations up and down, and colligation stirrup and concrete form the joint cores of vertical reinforcement cage constraint on the vertical connecting reinforcement; Reinforcing bar in steel concrete horizontal member steel pipe in the node place walks around connects continuously, and concreting constitutes reinforced concrete circle beam outside joint cores, the radiation ring beam stirrup of configuring multi-layer annular steel bar stress and stationary annular steel bar stress in the ring beam; The concrete of the concrete of steel pipe periphery and reinforced concrete circle beam becomes one in the node place.
Other characteristics of the present utility model are:
Described compound steel core concrete column is the section form of circle cover circle, side's cover circle, circle cover side, cover side, side or rectangular sleeve rectangle.
Described concrete is ordinary concrete, high-strength concrete or self-compacting concrete.
Described reinforced concrete circle beam is octagon or circle.
Floor steel concrete horizontal member can be Vierendeel girder, wide-flat beam or the arch without beam flat board of conventional sectional dimension.
Advantage of the present utility model and effect are:
1, the outer discontinuous tube ring beam joint of compound concrete filled steel tube, because the floor reinforced concrete member all around connects in the node place continuously, the transmission of shearing, moment of flexure changes into the equally direct transmission of ordinary reinforced concrete structure.Transmission in the shearing at node place and moment of flexure is the same direct with common frame construction, and it is stressed clear and definite, and power transmission is guaranteed, and its joint structure more meets the supposition of frame construction rigid joint, more can guarantee integrally-built stability; Meanwhile, more identical with calculation procedure when the appliance computer program is carried out the structural calculation analysis to the agreement of rigid joint, the mistake of the major premise contradiction that produces when avoiding structural calculation.
2, the utility model is specially adapted to adopt the wide-flat beam floor structure, and beam width is during greater than interior diameter of steel tube size, and main muscle can be directly straight-through continuously in the joint cores of the interior steel pipe outside in the beam, construct convenient simply.This has created condition for reducing the floor floor height to obtain good macro-economic rersults, the intrinsic superiority of compound concrete filled steel tube rod structure is given full play to, for a kind of approach has been opened up in its extensive use.
Description of drawings
Fig. 1 is a compound steel core concrete column sectional view of the present utility model;
Fig. 2 is outer discontinuous tube ring beam joint three-dimensional effect diagram;
Fig. 3 is outer discontinuous tube ring beam joint plane view cross-sectional schematic diagram;
Fig. 4 is the I-I generalized section of node among Fig. 3;
With reference to the accompanying drawings the utility model is elaborated.
The specific embodiment
Referring to Fig. 1~4, need to prove that accompanying drawing is that the outer discontinuous tube octagon ring beam joint that is connected with the RC beam with side's compound steel core concrete column of cover circle is an example.Compound steel core concrete column can adopt the section form of circle cover circle, square cover circle, circle cover side, cover side, side, rectangular sleeve rectangle, and interior steel pipe can adopt thin-wall steel tube with outer steel pipe; Concrete can be ordinary concrete or high-strength concrete or self-compacting concrete; Reinforced concrete circle beam can be octagon and circle.
The outer discontinuous tube ring beam joint structure of compound concrete filled steel tube of the present utility model, relate to being connected of compound steel core concrete column and steel concrete horizontal member, in compound steel core concrete column and floor steel concrete horizontal member junction, the outer steel pipe a of compound steel core concrete column is not communicated with at the floor place, and interior steel pipe b connects up and down continuously; The inwall of outer steel pipe a is welded with shearing resistance peg 8, and vertical connecting reinforcement 1 inserts the outer steel pipe a inboard of two segmentations up and down, and colligation stirrup 2 and concrete c form the joint cores of vertical reinforcement cage constraint on the vertical connecting reinforcement 1; Reinforcing bar in floor steel concrete horizontal member steel pipe b in the node place walks around connects continuously, concreting constitutes reinforced concrete circle beam outside joint cores, the radiation ring beam stirrup of configuring multi-layer annular steel bar stress and stationary annular steel bar stress in the ring beam; The concrete of the interior steel pipe b periphery at node place and the concrete of reinforced concrete circle beam become one.
The utility model emphasis will solve the transmission of compound steel core concrete column vertical axis power in the node area scope, because compound concrete filled steel tube has inside and outside double-layer pipe (a, b) confined concrete, block the outer steel pipe a of compound steel core concrete column in the node area of floor reinforced concrete circle beam.Outer steel pipe a disconnects the axial compression rigidity weakening that is produced and remedies by the vertical reinforcement cage at core space configuration vertical reinforcement 1 and node area stirrup 2 compositions, close concrete ring beam of joining annular steel bar stress 6 and radial pattern stirrup 5 outside joint cores improves node pressure zone area to reach simultaneously.Outer concrete of steel pipe b and ring beam concrete become one in the node place, and the node globality is strong, and ring beam can provide the hoop constraint, to improve the resistance to compression bearing capacity of node area scope inner concrete.Therefore guaranteed the continuity of compound steel core concrete column at floor node place to reach the stronger purpose of node simultaneously.
Steel pipe b does not have weakening at floor node place in the compound steel core concrete column, so this node is suitable for the interior less situation of steel tube section size.Outer steel pipe is not communicated with at the floor place, master's muscle 4 can connect continuously by steel pipe b in the node place can walk around at the bottom of longitudinal reinforcement beam face master muscle 3 in the floor steel concrete horizontal member, the beam, so the concrete and the ring beam joint district concrete of floor steel concrete horizontal member become one, energy reliable delivery node moment of flexure, shearing and axle power.Steel pipe a inwall is provided with shearing resistance peg 8 with steel pipe a and concrete binding outside guaranteeing outside two segmentations, and vertical connecting reinforcement 1 inserts the outer steel pipe a inboard of two segmentations, and colligation stirrup 2 and concrete form the joint cores of vertical reinforcement cage constraint on the vertical connecting reinforcement 1.
As shown in Figure 1, compound steel core concrete column is made up of the concrete c that builds in interior steel pipe b, outer steel pipe a and the pipe.By steel pipe b and outer steel pipe a in the design size processing, need to press design attitude inwall welding shearing resistance peg 8(Fig. 4 of steel pipe a outside);
Fig. 2 has provided the outer discontinuous tube octagon ring beam joint actual effect figure of the compound concrete filled steel tube of square cover circle;
Fig. 3 and Fig. 4 have provided the outer discontinuous tube ring beam joint exemplary construction schematic diagram of compound concrete filled steel tube, the steel pipe a of its China and foreign countries is not communicated with by floor clear height segmentation setting, in the reinforced concrete beam at the bottom of longitudinal reinforcement beam face master muscle 3, the beam master's muscle 4 connect continuously in the node place, beam stirrup 5 can encryption in ring beam.The vertical connecting reinforcement 1 steel pipe a inwall shearing resistance peg 8 that staggers outside inserts in the outer steel pipe a that blocks up and down, colligation stirrup 2 forms vertical reinforcement cage restraint joint core space concrete on the vertical connecting reinforcement 1, Vierendeel girder connects continuously at node place left-right and front-back like this, shearing, moment of flexure about beam do not have problems in bearing and transmitting of node place, and what needs were perfect is the resistance to compression bearing capacity that improves steel core concrete column in the range of nodes.Therefore form reinforced concrete circle beam by add horizontal armpit at the node place, the radiation ring beam stirrup 7 of configuring multi-layer annular steel bar stress 6 and stationary annular steel bar stress in the reinforced concrete circle beam, reinforced concrete circle beam can provide the hoop constraint, improves the resistance to compression bearing capacity of node area scope inner concrete.

Claims (5)

1. the outer discontinuous tube ring beam joint of a compound concrete filled steel tube, relate to being connected of compound steel core concrete column and steel concrete horizontal member, it is characterized in that, in compound steel core concrete column and floor steel concrete horizontal member junction, the outer steel pipe (a) of compound steel core concrete column is not communicated with at the floor place, and interior steel pipe (b) connects up and down continuously; The inwall of outer steel pipe (a) is welded with shearing resistance peg (8), and vertical connecting reinforcement (1) inserts outer steel pipe (a) inboard of two segmentations up and down, and vertical connecting reinforcement (1) is gone up colligation stirrup (2) and formed vertical reinforcement cage restraint joint core space concrete; Reinforcing bar in the floor steel concrete horizontal member is walked around interior steel pipe (b) and is connected continuously in the node place, concreting constitutes reinforced concrete circle beam outside joint cores, the radiation ring beam stirrup (7) of configuring multi-layer annular steel bar stress (6) and stationary annular steel bar stress in the ring beam; The concrete that steel pipe in the node place (b) is peripheral and the concrete of reinforced concrete circle beam become one.
2. the outer discontinuous tube ring beam joint of compound concrete filled steel tube as claimed in claim 1 is characterized in that, described compound steel core concrete column is the section form of circle cover circle, side's cover circle, circle cover side, cover side, side or rectangular sleeve rectangle.
3. the outer discontinuous tube ring beam joint of compound concrete filled steel tube as claimed in claim 1 is characterized in that described concrete is ordinary concrete, high-strength concrete or self-compacting concrete.
4. the outer discontinuous tube ring beam joint of compound concrete filled steel tube as claimed in claim 1 is characterized in that described reinforced concrete circle beam is octagon or circle.
5. the outer discontinuous tube ring beam joint of compound concrete filled steel tube as claimed in claim 1 is characterized in that Vierendeel girder, wide-flat beam or arch without beam flat board that described floor steel concrete horizontal member is conventional sectional dimension.
CN2010202458276U 2010-07-02 2010-07-02 Compound steel tube concrete outer steel tube-disconnection ring beam node Expired - Fee Related CN201722786U (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102864860A (en) * 2012-09-07 2013-01-09 华侨大学 Well-type framed girder reinforced flat slab connecting structure
CN103061416A (en) * 2011-10-21 2013-04-24 长江大学 Joint structure of steel-pipe-restraining steel concrete columns and reinforced concrete beams
CN103882994A (en) * 2014-02-28 2014-06-25 中国建筑第八工程局有限公司 Ring-beam reinforcing connection structure and ring-beam construction method
CN104074276A (en) * 2013-12-16 2014-10-01 中国建筑第四工程局有限公司 A linking structure between concrete filled still tubular columns and reinforced concrete beams and a construction method
CN104405043A (en) * 2014-10-28 2015-03-11 苏州工业园区设计研究院股份有限公司 Connecting structure for rectangular concrete-filled steel tubular column and reinforced concrete beam
CN104975653A (en) * 2015-06-18 2015-10-14 长安大学 Circular steel tube confined steel reinforced concrete post and reinforced concrete beam node structure
CN106284741A (en) * 2016-08-17 2017-01-04 沈阳建筑大学 Dry type is linked and packed the structural envelope integrated system of formula concrete width post Sorghum vulgare Pers.
CN110878587A (en) * 2019-10-24 2020-03-13 武汉理工大学 Module assembly type building beam column node connection structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061416A (en) * 2011-10-21 2013-04-24 长江大学 Joint structure of steel-pipe-restraining steel concrete columns and reinforced concrete beams
CN102864860A (en) * 2012-09-07 2013-01-09 华侨大学 Well-type framed girder reinforced flat slab connecting structure
CN104074276A (en) * 2013-12-16 2014-10-01 中国建筑第四工程局有限公司 A linking structure between concrete filled still tubular columns and reinforced concrete beams and a construction method
CN103882994A (en) * 2014-02-28 2014-06-25 中国建筑第八工程局有限公司 Ring-beam reinforcing connection structure and ring-beam construction method
CN103882994B (en) * 2014-02-28 2016-08-17 中国建筑第八工程局有限公司 Ring beam steel bar connecting structure and ring beam construction method
CN104405043A (en) * 2014-10-28 2015-03-11 苏州工业园区设计研究院股份有限公司 Connecting structure for rectangular concrete-filled steel tubular column and reinforced concrete beam
CN104975653A (en) * 2015-06-18 2015-10-14 长安大学 Circular steel tube confined steel reinforced concrete post and reinforced concrete beam node structure
CN106284741A (en) * 2016-08-17 2017-01-04 沈阳建筑大学 Dry type is linked and packed the structural envelope integrated system of formula concrete width post Sorghum vulgare Pers.
CN110878587A (en) * 2019-10-24 2020-03-13 武汉理工大学 Module assembly type building beam column node connection structure

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