CN103924676B - Prestressing force connects beams of concrete concrete-filled circular steel tube column node - Google Patents

Prestressing force connects beams of concrete concrete-filled circular steel tube column node Download PDF

Info

Publication number
CN103924676B
CN103924676B CN201410149366.5A CN201410149366A CN103924676B CN 103924676 B CN103924676 B CN 103924676B CN 201410149366 A CN201410149366 A CN 201410149366A CN 103924676 B CN103924676 B CN 103924676B
Authority
CN
China
Prior art keywords
concrete
steel
tube column
steel tube
filled circular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201410149366.5A
Other languages
Chinese (zh)
Other versions
CN103924676A (en
Inventor
马华
王倩倩
解咏平
宋坤
李振宝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Technology
Original Assignee
Beijing University of Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN201410149366.5A priority Critical patent/CN103924676B/en
Publication of CN103924676A publication Critical patent/CN103924676A/en
Application granted granted Critical
Publication of CN103924676B publication Critical patent/CN103924676B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

A kind of prestressing force connects beams of concrete concrete-filled circular steel tube column node, belongs to building structure technology field.Including concrete-filled circular steel tube column, reinforced beam, presstressed reinforcing steel, ring flat-plate, channel-section steel.Concrete-filled circular steel tube column is cast-in-place with reinforced beam;Concrete-filled circular steel tube column is connected with reinforced beam using presstressed reinforcing steel;Concrete-filled circular steel tube column leaves duct with reinforced beam junction, the built-in metal bellows in duct;Concrete filled steel tube welds annulate lamella with beam junction, there is corresponding hole on ring flat-plate;Channel-section steel is welded in round steel pipe.Speed of application of the present invention is fast, can be effectively increased the shear-carrying capacity of node, strengthens its switching performance, has a extensive future.

Description

Prestressing force connects beams of concrete concrete-filled circular steel tube column node
Technical field
The present invention relates to prestressing force connection beams of concrete concrete-filled circular steel tube column node, belong to building structure technology field.
Background technology
Existing more than the 100 years history of application concrete filled steel tube in architectural engineering.Concrete filled steel tube is due to bearing capacity The advantages of high, plasticity and good toughness, good economical benefit and easy construction and paid attention to by engineering circles.Concrete filled steel tube is adapted to Modern project structure to across, towering, heavily loaded development and the need for bearing mal-condition, meeting the industrialization of Modern Construction Technology greatly It is required that, thus just increasingly it is being widely used in individual layer and multi storied industrial factory building post, equipment frame post, pier, stake, space In structure, commercial square, multistory office and house, high-rise and high-rise building and bridge structure, good warp has been obtained Ji effect and architectural effect.Especially in recent years, it is rapid in undergoing an unusual development for China's concrete filled steel tube structure, to round steel pipe The research of concrete structure is also more and more.
Concrete-filled circular steel tube column is one of key issue when carrying out concrete filled steel tube engineering design with the connecting node of beam, The validity of its connecting node directly affects integrally-built rigidity, stability and bearing capacity, also has influence on site operation difficult Degree and construction speed.Existing Concrete-filled tubular connections form is various, and construction is complicated mostly, and difficulty of construction is big, and power transmission is indefinite, Node computation model is indefinite, and China is also without a set of more complete node computational theory and method for designing so far.Therefore, research and develop A kind of new, concrete-filled circular steel tube column that connection is safe and reliable and girder connection form, it appears very necessary.
This construction method of bonded prestress, by duct grouting, makes presstressed reinforcing steel mutually be bonded with concrete, mitigates Anchorage transmission prestressing force effect, improves anchorage reliability and durability, is widely used in main supporting member or structure.
The content of the invention
Object of the present invention is to provide a kind of prestressing force connection beams of concrete concrete-filled circular steel tube column node, ensureing Node connection effectively, power transmission it is clear and definite under the premise of, be connected with concrete-filled circular steel tube column node by improving reinforced beam Mode, is assembled using presstressed reinforcing steel, reduces difficulty of construction, accelerates construction speed.Speed of application of the present invention is fast, can The shear-carrying capacity of node is effectively increased, strengthens its switching performance, had a extensive future.
To achieve the above object, the technical solution adopted by the present invention is that a kind of prestressing force connects beams of concrete round steel pipe coagulation Earth pillar node, as shown in Figure 1, 2, including concrete-filled circular steel tube column(1)And reinforced beam(2), the two is by presstressed reinforcing steel group It is integral;Concrete-filled circular steel tube column(1)With reinforced beam(2)It is cast-in-place;Concrete-filled circular steel tube column and armored concrete Beam(2)Connected using presstressed reinforcing steel;Concrete-filled circular steel tube column(1)With reinforced beam(2)Duct is left in junction, in duct Middle built-in metal bellows(4);Concrete filled steel tube welds annulate lamella with beam junction(5), ring flat-plate(5)On have corresponding hole; Channel-section steel(6)It is welded in round steel pipe.
The ring flat-plate(5)It is general steel plate, width is beam section height, and thickness is thickness of steel pipe.
The channel-section steel(6)Web height is beam section width, and flange width is beam section height, and channel-section steel length is beam section Highly, the web of channel-section steel cut into round steel pipe identical radian, during to weld with round steel pipe completely attach to.
Presstressed reinforcing steel(3)The design principle of prestressing force size be:The friction shear resisting ability of junction should be ensured, again Within the stress in presstressed reinforcing steel is remained at yield limit.
Can be used as deformed bar in the end ring flat-plate of side column(3)Bearing plate during tensioning.
Compared with prior art, the present invention has the advantages that.
It is fast using this node site operation speed, and the reliability of node connection can be ensured.This node is used Ring flat-plate, can mitigate the weakening effect to bearing capacity when round steel pipe punches;The shearing resistance that can increase bean column node using channel-section steel is held Carry power;Using deformed bar, by duct grouting, presstressed reinforcing steel is mutually bonded with concrete, alleviate anchorage transmission pre- Stress, improves the performance of reinforced beam, and this brings huge economic benefit to the economy of China and social development, Have a extensive future.
Brief description of the drawings
Fig. 1 is interior joint front elevation view
Fig. 2 is mid-side node front elevation view
Fig. 3 is sectional views of the Fig. 1 along A-A
Fig. 4 is sectional views of the Fig. 2 along B-B
Fig. 5 is sectional views of the Fig. 2 along C-C
Fig. 6 is sectional views of the Fig. 1 along D-D
In figure:1st, concrete-filled circular steel tube column, 2, reinforced beam, 3, presstressed reinforcing steel, 4, metal bellows, 5, ring flat-plate, 6th, channel-section steel, 7, mortar.
Specific embodiment
The present invention is described in further detail below with reference to drawings and Examples.
As shown in figures 1 to 6.
Embodiment 1
Prestressing force connection beams of concrete concrete-filled circular steel tube column joint structure is as shown in Figure 1:
1st, concrete filled steel tube positioning
Steel core concrete column(1)Steel pipe carry out perforate treatment in strict accordance with drawing in steel construction processing factory;In round steel Pipe concrete column(1)Ring flat-plate is welded using weld all around mode at upper tie-beam(5)And channel-section steel(6);Steel core concrete column(1)Lifting is fixed Position.
2nd, colligation beam reinforcement cages and deformed bar are fixed
Beam bottom mother plate is installed, in strict accordance with design drawing colligation beam reinforcement cages;One side side form is installed, by figure on side form Metal bellows position line is marked in the presstressed reinforcing steel position that paper is given, and is welded bellows fixed support on beam stirrup successively, Lay metal bellows(4).
3rd, bonded prestressed tendon lashing
After bellows is fixed, anchor plate is installed in anchored end, presstressed reinforcing steel is penetrated into ripple from what anchored end was smoothed out In pipe.Stretching end spills 0.8m, and the mouth of pipe is stoppered with cement bag paper, prevents cement mortar and curing water from flowing into, and leak outside partial prestressing Reinforcing bar gummed paper is wrapped prevents moisture corrosion presstressed reinforcing steel.
4th, concreting
Pour concrete-filled circular steel tube column and reinforced beam." concrete engineering construction technique is shown in concreting method Standard ".
5th, tension of prestressed tendon
Concrete strength reach design strength 85% after carry out the tensioning of presstressed reinforcing steel, tensioning uses symmetrical stretching mode, The position of stretching force overlaps with duct center line.Using stress and stretch value dual control, stressing sequence is 0 → 10% to cable tensios control σcon→100%σcon→103%σcon→ anchoring.
6th, duct grouting
Mortar is filled to duct within 48h after the completion of tensioning(7), grouting is using 42.5R Portland cements, filling process It is middle to keep continuous consistent.
7th, cut
After tensioning terminates, presstressed reinforcing steel will be exposed using portable grinder cutting machine and cut off, its protruded length will be unsuitable small In 1.5 times of presstressed reinforcing steel diameter, and not less than 30mm.
Embodiment 2
See Fig. 2 when for side column node, other measures, simply in the end of side column, presstressed reinforcing steel are welded with embodiment 1 In ring flat-plate(5)On, this ring flat-plate can as tension of prestressed tendon when bearing plate.

Claims (2)

1. a kind of prestressing force connects beams of concrete concrete-filled circular steel tube column node, it is characterised in that:The node is mixed including round steel pipe Solidifying earth pillar (1), reinforced beam (2), presstressed reinforcing steel (3), ring flat-plate (5) and channel-section steel (6);Concrete-filled circular steel tube column is mixed with reinforcing bar Solidifying Tu Liang (2) is connected using presstressed reinforcing steel;Concrete-filled circular steel tube column (1) leaves duct with reinforced beam (2) junction, Built-in metal bellows (4) in duct;Concrete-filled circular steel tube column welds annulate lamella (5), ring flat-plate with reinforced beam junction (5) there is corresponding hole on;Channel-section steel (6) is welded in round steel pipe;Concrete-filled circular steel tube column (1) and reinforced beam (2) are existing Pour, presstressed reinforcing steel (3) uses bonded prestressed tendon;Ring flat-plate (5) is general steel plate, and width is beam section height, thickness It is thickness of steel pipe.
2. prestressing force according to claim 1 connects beams of concrete concrete-filled circular steel tube column node, it is characterised in that:Channel-section steel (6) web height is beam section width, and flange width is beam section height, and channel-section steel length is beam section height, the web of channel-section steel Cut into round steel pipe identical radian, during to weld with round steel pipe completely attach to.
CN201410149366.5A 2014-04-14 2014-04-14 Prestressing force connects beams of concrete concrete-filled circular steel tube column node Expired - Fee Related CN103924676B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410149366.5A CN103924676B (en) 2014-04-14 2014-04-14 Prestressing force connects beams of concrete concrete-filled circular steel tube column node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410149366.5A CN103924676B (en) 2014-04-14 2014-04-14 Prestressing force connects beams of concrete concrete-filled circular steel tube column node

Publications (2)

Publication Number Publication Date
CN103924676A CN103924676A (en) 2014-07-16
CN103924676B true CN103924676B (en) 2017-06-16

Family

ID=51143054

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410149366.5A Expired - Fee Related CN103924676B (en) 2014-04-14 2014-04-14 Prestressing force connects beams of concrete concrete-filled circular steel tube column node

Country Status (1)

Country Link
CN (1) CN103924676B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314005B (en) * 2014-09-19 2016-11-30 中铁四局集团第五工程有限公司 A kind of pre-buried positioning construction method of vertical multi beam prestress wire
CN104975652B (en) * 2015-06-30 2017-03-29 中国矿业大学 A kind of precast concrete docks attachment structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4519368B2 (en) * 2001-07-11 2010-08-04 日本コンクリート工業株式会社 Concrete structure and construction method thereof
JP2004316322A (en) * 2003-04-18 2004-11-11 Takenaka Komuten Co Ltd Construction method of column-beam skeleton by precast concrete member
CN101550728B (en) * 2009-04-30 2011-01-05 中国建筑股份有限公司 The nodes and construction method for concrete filled steel tubular column and in-situ reinforced concrete beam
CN101748804B (en) * 2010-01-06 2011-12-07 哈尔滨工业大学深圳研究生院 Node structure of concrete filled steel tube column and reinforced concrete beam and construction technology thereof
CN203174771U (en) * 2012-12-27 2013-09-04 湖南顺天建设集团有限公司 Annular plate node of steel pipe concrete column and bonded prestress steel bar concrete beam

Also Published As

Publication number Publication date
CN103924676A (en) 2014-07-16

Similar Documents

Publication Publication Date Title
CN106869316B (en) The beam column edge of a wing is the group frame system and construction method of concrete filled steel tube
CN104746422B (en) A kind of hollow pier stud delay-pour joint structure of bridge prefabrication and construction method
CN203654473U (en) Connecting joint of rectangular concrete filled steel tubular column and steel reinforced concrete composite beam
WO2018233440A1 (en) Node connection structure for prestressed prefabricated concrete frame and construction method thereof
CN102383418B (en) Anti-seismic prefabricated concrete solid square pile and production method thereof
CN105735112B (en) Bolt connection-based rapid assembling precast rectangular concrete filled steel tube bridge pier
CN105386405B (en) Based on bolted Precast Concrete Segmental Bridges concrete pier of steel tube
CN204326335U (en) A kind of prefabricated reinforced concrete floor and superposed beam one assembly connection structure
CN103821677B (en) Prefabricated PC RPC wind power tower
CN101982629B (en) Assembly-type self-compaction steel tube and concrete composite structure
JP6329702B2 (en) Assembling-type reinforced concrete pier column member
CN203668815U (en) Concrete prefabricated section assembled pier
CN103437458A (en) Precast concrete double-board shear wall with internal inclined braces and construction method for same
CN204326255U (en) A kind of Reinforced Concrete Composite Beams and steel pipe column connected node
CN103074941B (en) Assembling regeneration concrete node and the practice of steel bar girder beam are contained in a kind of end
CN104790424B (en) The hardened system on generation power foundation of wind power ring basis and reinforcement means thereof
CN100999913B (en) Node of steel tube concrete pole and steel reinforced concrete beam and processing method thereof
CN106284655B (en) Precast concrete beam stud connects connecting node and connection method
CN107313540A (en) The anti-buckling assembled combination beam of fire prevention and construction method
CN101818478B (en) Connection structure for concrete-filled circular steel tubular pier column and concrete cover beam
CN105735469B (en) A kind of part adhesive precast prestressed concrete frame structure
CN106677339A (en) Assembly integral type concrete frame structure of dry-wet mixed connection of nodes and construction method
CN202831402U (en) Concrete filled steel tubular column with inner-connected circular pipe and outer-sleeved concrete filled steel tube
CN203174771U (en) Annular plate node of steel pipe concrete column and bonded prestress steel bar concrete beam
CN104005567A (en) Ultra-high-performance concrete reinforced concrete column with fiber reinforced polymers wound around steel pipe

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170616

Termination date: 20200414