CN107816128A - A kind of prefabricated assembled RC posts inflection point contraposition attachment means - Google Patents

A kind of prefabricated assembled RC posts inflection point contraposition attachment means Download PDF

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Publication number
CN107816128A
CN107816128A CN201711032157.2A CN201711032157A CN107816128A CN 107816128 A CN107816128 A CN 107816128A CN 201711032157 A CN201711032157 A CN 201711032157A CN 107816128 A CN107816128 A CN 107816128A
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CN
China
Prior art keywords
column
connecting plate
plate
outer sleeve
intermediate connecting
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.)
Pending
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CN201711032157.2A
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Chinese (zh)
Inventor
解咏平
贾磊
李源
白文婷
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Hebei GEO University
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Hebei GEO University
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Priority to CN201711032157.2A priority Critical patent/CN107816128A/en
Publication of CN107816128A publication Critical patent/CN107816128A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21—Connections specially adapted therefor
    • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

本发明涉及一种预制装配式RC柱反弯点对位连接装置。包括外套板、外套筒、中间连接板；外套板中部设置有水平设置的中间连接板，中间连接板底面向下设置有倒锥形的外套筒，所述外套筒与中间连接板上口连接处设置有灌浆孔；所述中间连接板中部还设置有中间连接板通孔。本发明对位准确、方便，施工速度快，具有足够的水平剪力，经济性强，其应用在柱的反弯点位置，效果明显而且不会显著地提高工程造价，性价比较强，适合在工程中广泛推广。

The invention relates to a prefabricated assembly type RC column inflection point alignment connection device. It includes an outer plate, an outer sleeve, and an intermediate connecting plate; a horizontally arranged intermediate connecting plate is arranged in the middle of the outer outer plate, and an inverted tapered outer sleeve is arranged on the bottom of the intermediate connecting plate, and the outer sleeve and the intermediate connecting plate A grouting hole is provided at the joint of the mouth; a through hole of the intermediate connecting plate is also arranged in the middle of the intermediate connecting plate. The invention is accurate and convenient in alignment, fast in construction speed, has sufficient horizontal shear force, and is economical. It is applied at the inflection point of the column, and the effect is obvious without significantly increasing the project cost. The cost performance is strong, and it is suitable for Widely promoted in engineering.

Description

A kind of prefabricated assembled RC posts inflection point contraposition attachment means
Technical field
The present invention relates to a kind of prefabricated assembled RC posts inflection point contraposition attachment means, belong to structural engineering field, mainly For assembled RC (i.e. precast concrete, representation mode generally in the art) post.
Background technology
In prefabrication, it is the inevitable requirement of assembled architecture to ensure good globality.Most assembled Structure is all attached in node location, but node is easily destroyed by the collective effect of moment of flexure, shearing, axle power, or The requirement such as structure stress and antidetonation is just can guarantee that by making more complicated structure type.For this reason, it is necessary to select appropriate position Put and be attached.When Dang Liang, plate, the integral prefabricated progress of post progress are assembled, because the moment of flexure of inflection point is zero, if prefabricated post is anti- Assembled is carried out at curved point need to meet that shear-carrying capacity can reach requirement, and therefore, the optimum position spliced should select The inflection point of post.Because the moment of flexure of inflection point is zero, the subject matter for design is sheared, moment of flexure is not the subject matter of design； Secondly, the accurate contraposition of rigging position is equally the subject matter of design.For this reason, it is necessary to work out a kind of Novel connection tipping Put.
The content of the invention
Based on above mentioned problem, the present invention proposes a kind of prefabricated assembled RC posts inflection point contraposition attachment means, and it is utilized Inflection point moment of flexure is zero, only need to meet horizontal force shearing the characteristics of, solve horizontal bearing capacity and accurate contraposition connection will Ask.
The technical solution adopted by the present invention is as follows：
A kind of prefabricated assembled RC posts inflection point contraposition attachment means, including flag, outer sleeve, middle connecting plate；Institute State flag and be encircled into square cross, horizontally disposed middle connecting plate, the centre are provided with the middle part of the flag Connecting plate bottom surface is vertically provided with the outer sleeve of back taper, and the outer sleeve is provided with grouting with middle connecting plate junction suitable for reading Hole；Middle connecting plate through hole is additionally provided with the middle part of the middle connecting plate；The middle connecting plate through hole and the grout hole For irrigating high-strength binding agent；The flag as described in the top that middle connecting plate is split is used to entangle prefabricated assembled RC posts Post, the flag as described in the bottom that middle connecting plate is split are used for the lower prop for entangling prefabricated assembled RC posts；The outer sleeve is used In receiving upper prop reinforcing bar and it is perfused with high-strength binding agent；The lower mouth of the outer sleeve flushes with lower prop reinforcing bar；Wherein, outer sleeve Lower port diameter can use 1.0d~1.1d, and a diameter of 2d~3d suitable for reading, d are RC post bar diameters.
Further, multiple contraposition screwed holes are provided with flag described in top.
Further, the length of the outer sleeve is more than or equal to upper prop anchorage length of steel bar；Anchor required for upper prop reinforcing bar Gu length calculates according to the moment of outer sleeve end, or determines upper prop anchorage length of steel bar according to detailing requiments.
Further, flag is made up of steel plate, and the flag takes b/2, b to be cut for post in the height of upper prop or lower prop The higher value of face width or height, thickness shear-carrying capacity value as needed for post calculate.
Further, the high-strength binding agent uses early-strength, meanwhile, the intensity of binding agent meets that " horizontal shear carries The requirement of power ".
Further, the middle part perforate of the middle connecting plate through hole needs to ensure upper prop concrete and lower prop concrete Effective bond area, strengthens shear-carrying capacity, and perforated area determines according to horizontal shear size.
Further, the middle connecting plate through hole is square hole.
Operation principle：When seismic force or horizontal force action, shear along pillar height degree and keep constant, and it is curved at inflection point Square is zero.When horizontal shear passes to pillar, undertaking the part of horizontal shear includes：Overcoat steel plate and interfacial adhesion, The horizontal shear that sleeve is born can be ignored.Because the moment of flexure near inflection point is small, it need to only meet that certain anchorage length will Ask.
The present invention is had the following advantages that relative to prior art and beneficial effect：
1. contraposition is accurately, conveniently.By the sleeve of variable cross-section upper prop reinforcing bar can be made to be aligned with lower prop reinforcing bar, and can led to The screw crossed at bolt hole is adjusted to the position of upper prop, succinctly, conveniently.
2. speed of application is fast.Bonding agent uses high-strength binding agent, and curing rate is fast.
3. ensure enough horizontal shears.Outer sleeve is made up of steel plate, and connecting portion is similar to concrete filled steel tube, steel plate and Section cohesive force can ensure that connecting portion has enough shear-carrying capacities.
4. economy is strong.This programme is applied in the inflection point position of post, positive effect and will not significantly increase engineering Cost, cost performance is stronger, is adapted to be widely popularized in engineering.
Brief description of the drawings
Fig. 1 is using state structure diagram of the present invention in post inflection point position.
Fig. 2 aligns attachment means profile for the prefabricated assembled RC posts inflection point of the present invention.
In figure：1. align screwed hole；2. grout hole；3. flag；4. outer sleeve；5. middle connecting plate；6 middle connecting plates Through hole；7. upper prop；8. lower prop；9. high-strength binding agent；10. upper prop reinforcing bar；11. lower prop reinforcing bar.
Embodiment
Such as Fig. 1-2, a kind of prefabricated assembled RC posts inflection point contraposition attachment means of the invention, including flag 3, overcoat Cylinder 4, middle connecting plate 5；The flag 3 is encircled into square cross, and the middle part of flag 3 is provided with horizontally disposed centre Connecting plate 5, the bottom surface of middle connecting plate 5 are vertically provided with the outer sleeve 4 of back taper, outer sleeve 4 and 5 connection suitable for reading of middle connecting plate Place is provided with grout hole 2.The middle part of middle connecting plate 5 is additionally provided with middle connecting plate through hole 6.Middle connecting plate through hole 6 and institute Grout hole 2 is stated to be used to irrigate high-strength binding agent 9.The flag 3 as described in the top that middle connecting plate 5 is split is used to entangle prefabricated dress Upper prop with formula RC posts, the flag 3 as described in the bottom that middle connecting plate 5 is split are used to entangle under prefabricated assembled RC posts Post.Outer sleeve 4 is used to accommodate upper prop reinforcing bar 10 and is perfused with high-strength binding agent 9.The lower mouth and lower prop reinforcing bar 11 of outer sleeve 4 are neat It is flat.Multiple contraposition screwed holes 1 are provided with described in top on flag 3.
Wherein, the lower port diameter of outer sleeve 4 can use 1.0d~1.1d, and a diameter of 2d~3d suitable for reading, d are that RC post reinforcing bars are straight Footpath.The length of outer sleeve 4 is more than or equal to the anchorage length of upper prop reinforcing bar 10.Anchorage length required for upper prop reinforcing bar 10 is according to overcoat The moment of cylinder end calculates, or determines the anchorage length of upper prop reinforcing bar 10 according to detailing requiments.Flag 3 is made up of steel plate, It is column section width or the higher value of height that the flag 3 takes b/2, b in the height of upper prop or lower prop, and thickness is as needed for post Shear-carrying capacity value calculates.High-strength binding agent 9 uses early-strength, meanwhile, the intensity of binding agent meets " level shear capacity " Requirement.Middle connecting plate through hole 6 is needed to ensure effective bond area of upper prop concrete and lower prop concrete, and enhancing shearing resistance is held Power is carried, perforated area determines according to horizontal shear size, and middle connecting plate through hole 6 is square hole.
The contraposition connection method of above-mentioned prefabricated assembled RC posts inflection point contraposition attachment means is as follows：
Step 1：By cutting steel plate processing sets up flag 3, outer sleeve 4 and middle connecting plate 5；
Step 2：Contraposition screwed hole 1 is set on flag 3, middle connecting plate through hole 6 is set on middle connecting plate 5 And grout hole 2, outer sleeve 4 is fixedly connected with middle connecting plate 5, middle connecting plate 5 is connected with flag 3；
Step 3：Contraposition attachment means are formed on lower prop in advance, irrigated in grout hole 2 and middle connecting plate through hole 6 during assembling High-strength binding agent 9；Then, by upper prop alignment lower prop installation, and corrected by aligning screwed hole 1 so that upper prop reinforcing bar 10 is vertical Stretch into outer sleeve 4, and positioned at the center of outer sleeve 4；
Step 4：The space between upper prop and flag 3 is filled with high-strength binding agent 9.
It is described above, it is only the one of which embodiment of the present invention.It is every to be implemented according to the technology of the present invention essence to more than Any modification, change or the equivalent structure change that example is made, the protection domain of technical solution of the present invention all should be belonged to.

Claims (7)

1.一种预制装配式RC柱反弯点对位连接装置，其特征在于：包括外套板(3)、外套筒(4)、中间连接板(5)；所述外套板(3)合围成方形截面结构，所述外套板(3)中部设置有水平设置的中间连接板(5)，所述中间连接板(5)底面向下设置有倒锥形的外套筒(4)，所述外套筒(4)与中间连接板(5)上口连接处设置有灌浆孔(2)；所述中间连接板(5)中部还设置有中间连接板通孔(6)；所述中间连接板通孔(6)以及所述灌浆孔(2)用于灌注高强粘结剂(9)；由中间连接板(5)分割的上部所述外套板(3)用于套住预制装配式RC柱的上柱，由中间连接板(5)分割的下部所述外套板(3)用于套住预制装配式RC柱的下柱；所述外套筒(4)用于容纳上柱钢筋(10)并灌注有高强粘结剂(9)；所述外套筒(4)的下口与下柱钢筋(11)齐平；其中，外套筒(4)的下口直径取1.0d～1.1d，上口的直径为2d～3d，d为RC柱钢筋直径。1. A prefabricated assembly type RC column inflection point alignment connection device, characterized in that: it includes an outer shell plate (3), an outer sleeve (4), and an intermediate connecting plate (5); the outer shell plate (3) is enclosed Form a square cross-section structure, the middle part of the outer outer plate (3) is provided with a horizontally arranged intermediate connecting plate (5), and the bottom surface of the intermediate connecting plate (5) is provided with an inverted tapered outer sleeve (4), so A grouting hole (2) is provided at the connection between the outer sleeve (4) and the upper opening of the intermediate connecting plate (5); the middle part of the intermediate connecting plate (5) is also provided with an intermediate connecting plate through hole (6); The connecting plate through hole (6) and the grouting hole (2) are used for pouring high-strength adhesive (9); the upper outer shell plate (3) divided by the intermediate connecting plate (5) is used to trap the prefabricated assembly The upper column of the RC column, the outer outer plate (3) of the lower part divided by the middle connecting plate (5) is used to cover the lower column of the prefabricated assembled RC column; the outer sleeve (4) is used to accommodate the upper column reinforcement (10) and poured with high-strength adhesive (9); the lower opening of the outer sleeve (4) is flush with the lower column steel bar (11); wherein, the lower opening diameter of the outer sleeve (4) is 1.0d ～1.1d, the diameter of the upper opening is 2d～3d, and d is the diameter of the steel bar of the RC column. 2.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：上部所述外套板(3)上设置有多个对位螺纹孔(1)。2. A prefabricated assembly type RC column inflection point alignment connection device according to claim 1, characterized in that: the upper outer casing plate (3) is provided with a plurality of alignment threaded holes (1). 3.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：所述外套筒(4)的长度大于等于上柱钢筋(10)锚固长度；上柱钢筋(10)所需要的锚固长度根据外套筒端部的弯矩值计算，或者根据构造要求确定上柱钢筋(10)锚固长度。3. A prefabricated assembly type RC column inflection point alignment connection device according to claim 1, characterized in that: the length of the outer sleeve (4) is greater than or equal to the anchorage length of the upper column reinforcement (10); The required anchorage length of the column reinforcement (10) is calculated according to the bending moment value at the end of the outer sleeve, or the anchorage length of the upper column reinforcement (10) is determined according to the construction requirements. 4.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：外套板(3)由钢板构成，所述外套板(3)在上柱或下柱的的高度取b/2，b为柱截面宽度或高度的较大值，厚度按柱所需抗剪承载力值计算。4. A prefabricated assembly type RC column anti-bending point alignment connection device according to claim 1, characterized in that: the outer cover plate (3) is made of steel plate, and the outer cover plate (3) is on the upper column or the lower column The height is taken as b/2, where b is the larger value of the width or height of the column section, and the thickness is calculated according to the required shear bearing capacity of the column. 5.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：所述高强粘结剂(9)采用早强型，同时，粘结剂的强度满足“水平抗剪承载力”的要求。5. A prefabricated assembly type RC column anti-bending point alignment connection device according to claim 1, characterized in that: the high-strength adhesive (9) adopts an early-strength type, and at the same time, the strength of the adhesive meets "Horizontal shear capacity" requirements. 6.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：所述中间连接板通孔(6)需要保证上柱混凝土和下柱混凝土的有效粘结面积，增强抗剪承载力，开孔面积根据水平剪力大小确定。6. A prefabricated assembly type RC column anti-bending point alignment connection device according to claim 1, characterized in that: the through hole (6) of the intermediate connecting plate needs to ensure the effective adhesion of the upper column concrete and the lower column concrete. The knot area enhances the shear bearing capacity, and the opening area is determined according to the magnitude of the horizontal shear force. 7.根据权利要求1所述的一种预制装配式RC柱反弯点对位连接装置，其特征在于：中间连接板通孔(6)为方孔。7. A prefabricated assembly type RC column anti-bending point alignment connection device according to claim 1, characterized in that: the through hole (6) of the intermediate connection plate is a square hole.
CN201711032157.2A 2017-10-30 2017-10-30 A kind of prefabricated assembled RC posts inflection point contraposition attachment means Pending CN107816128A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589915A (en) * 2018-05-07 2018-09-28 东北林业大学 A kind of external steel plate of assembly concrete column is to drawing connecting node and its construction method
CN110528785A (en) * 2019-08-28 2019-12-03 江苏建科鉴定咨询有限公司 A kind of connection method for prefabricated components reinforcing bar

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CN87104226A (en) * 1986-06-26 1988-02-24 门田正 Rebar Splicing Set
CN201704879U (en) * 2010-01-26 2011-01-12 北京市建筑工程研究院 Flask-shaped grouting rebar connecting sleeve
CN103061517A (en) * 2013-01-15 2013-04-24 中南大学 A new sub-structure modular prefabricated assembly node-type frame structure assembly method
CN204826425U (en) * 2015-08-17 2015-12-02 高明民 Grout adapter sleeve
EP3095925A1 (en) * 2015-05-18 2016-11-23 Spiroll Precast Services Limited Clamp lock anchor
CN205894313U (en) * 2016-07-20 2017-01-18 福建工程学院 Prefabricated assembled steel pipe retrains frame node entirely
CN106381925A (en) * 2016-10-28 2017-02-08 湖南大学 Prefabricated reinforced concrete column and column splice joint with sleeves
CN106759947A (en) * 2017-03-05 2017-05-31 北京工业大学 Assembly concrete-filled steel tube post post connected mode
CN106759881A (en) * 2016-12-29 2017-05-31 上海建工五建集团有限公司 Prefabricated column connected node grout sealing structure and method
CN106812215A (en) * 2017-03-05 2017-06-09 北京工业大学 A kind of prefabricated PC steel core concrete column post connected mode

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN87104226A (en) * 1986-06-26 1988-02-24 门田正 Rebar Splicing Set
CN201704879U (en) * 2010-01-26 2011-01-12 北京市建筑工程研究院 Flask-shaped grouting rebar connecting sleeve
CN103061517A (en) * 2013-01-15 2013-04-24 中南大学 A new sub-structure modular prefabricated assembly node-type frame structure assembly method
EP3095925A1 (en) * 2015-05-18 2016-11-23 Spiroll Precast Services Limited Clamp lock anchor
CN204826425U (en) * 2015-08-17 2015-12-02 高明民 Grout adapter sleeve
CN205894313U (en) * 2016-07-20 2017-01-18 福建工程学院 Prefabricated assembled steel pipe retrains frame node entirely
CN106381925A (en) * 2016-10-28 2017-02-08 湖南大学 Prefabricated reinforced concrete column and column splice joint with sleeves
CN106759881A (en) * 2016-12-29 2017-05-31 上海建工五建集团有限公司 Prefabricated column connected node grout sealing structure and method
CN106759947A (en) * 2017-03-05 2017-05-31 北京工业大学 Assembly concrete-filled steel tube post post connected mode
CN106812215A (en) * 2017-03-05 2017-06-09 北京工业大学 A kind of prefabricated PC steel core concrete column post connected mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108589915A (en) * 2018-05-07 2018-09-28 东北林业大学 A kind of external steel plate of assembly concrete column is to drawing connecting node and its construction method
CN110528785A (en) * 2019-08-28 2019-12-03 江苏建科鉴定咨询有限公司 A kind of connection method for prefabricated components reinforcing bar

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