CN107090908B - A kind of vertical prefabricated components joint connecting method - Google Patents

A kind of vertical prefabricated components joint connecting method Download PDF

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Publication number
CN107090908B
CN107090908B CN201710321747.0A CN201710321747A CN107090908B CN 107090908 B CN107090908 B CN 107090908B CN 201710321747 A CN201710321747 A CN 201710321747A CN 107090908 B CN107090908 B CN 107090908B
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China
Prior art keywords
precast concrete
vertical
layer
concrete
node region
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CN201710321747.0A
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CN107090908A (en
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曹大燕
徐其功
毛娜
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Guangdong Provincial Academy of Building Research Group Co Ltd
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Guangdong Provincial Academy of Building Research Group Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/20Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
    • E04B1/21Connections specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/58Connections for building structures in general of bar-shaped building elements

Abstract

The invention discloses a kind of novel vertical prefabricated components joint connecting methods, and (1) hoisting prefabricated concrete horizontal component to installation site, binds gluten on precast concrete horizontal member;(2) a concreting is carried out, while remaining for the space that second coagulation soil pours in advance in node region;(3) precast concrete vertical member in upper layer is lifted to installation site, the supporting steel truss for being embedded in the precast concrete vertical member of upper layer and stretch out its lower end is placed on lower layer's precast concrete vertical member, support upper layer precast concrete vertical member makes it stable;(4) supporting steel truss being passed through in node region and carrying out reinforcing bar binding, formwork simultaneously pours node region progress second coagulation soil, the demoulding after concrete reaches design strength.This invention ensures that the globality of the effective transmitting and node region of reinforced steel bar strength, simplifies construction technology, facilitate constructing operation, improve construction quality, project cost is saved, and shorten the construction time, strengthen the integrated connection between vertical member.

Description

A kind of vertical prefabricated components joint connecting method
Technical field
The present invention relates to a kind of vertical prefabricated components joint connecting methods.
Background technique
Prefabricated assembled concrete structure with its energy-saving and environmental protection, save that template, component quality be easily controllable, construction period It is short, save artificial, climate condition and influence the advantages such as small, it is very wide in advanced countries use.In recent years, it was mentioned rapidly in construction process Under the premise of liter and national development strategy, the building industrialization road in China emerges again.As China is to prefabricated assembled mixed The research that solidifying civil engineering is built with widely popularize, prefabricated concrete structure technique of design and construction is rapidly developed.Assembly Formula concrete structure suffers from relatively broad application in residential housing, public building and industrial building field.
Concrete assembled structure node plays whole vertical carrying in structure and anti-seismic performance direction plays a significant role. The connection type of concrete assembled structure node is divided into dry type connection and connects with wet type.The advantage of dry type connection is installation side Just quick, and disadvantage is that ductile deformation's capacity gap is not small, it is difficult to play shock resistance;Wet type connection has the excellent of globality Gesture, member reinforcing steel bar is cast-in-place by node, may be implemented preferably to connect and anchoring, this connection type are similar to cast-in-place structural. Therefore, wet type connection is the node connection type that current China is widely used.
Currently, the side that vertical prefabricated components node connection mostly uses local cast-in-place concrete to combine with sleeve grouting connection Formula.Sleeve grouting is the service sleeve in prefabricated components production, and the node that lower layer's vertical member is connect with horizontal member is cast-in-place Connection, as wet connection.But there is following defects for which: being filled with the reinforcing bar of the vertical prefabricated components in upper layer using sleeve Slurry connection, although can guarantee effective transmitting of reinforced steel bar strength, in the construction process, reinforcing bar is with sleeve contraposition and later Grouting technique it is more demanding, technique is very complicated, and construction quality is difficult to ensure, in addition, construction cost is also relatively high.
Summary of the invention
The purpose of the present invention is to provide a kind of construction technologies simply, can ensure that construction quality, construction efficiency are high, is constructed into This low vertical prefabricated components joint connecting method.
The purpose of the present invention is realized by technical measures below: a kind of vertical prefabricated components joint connecting method, Be characterized in that specifically includes the following steps:
(1) hoisting prefabricated concrete horizontal component is bound on the upper surface of precast concrete horizontal member to installation site Gluten;
(2) a concreting is carried out to the precast concrete horizontal member for having bound gluten, while in precast concrete The node region of horizontal member and precast concrete vertical member remains for the space that second coagulation soil pours, precast concrete in advance Vertical member is upper layer precast concrete vertical member and lower layer's precast concrete vertical member;
(3) after the concrete wait pour reaches design strength, one-time-concreting concrete finished surface is formed, and lifting upper layer is prefabricated Concrete vertical member will be embedded in the upper layer precast concrete vertical member and stretch out the support of its lower end to installation site Steel truss is placed on lower layer's precast concrete vertical member, and support upper layer precast concrete vertical member makes it stable;
Precast concrete horizontal member and precast concrete vertical member node region pass through supporting steel truss into The binding of row reinforcing bar, formwork simultaneously pours node region progress second coagulation soil, after the concrete wait pour reaches design strength Node connection is completed in demoulding.
The present invention by node cast-in-place concrete realize joint reinforcing bar connection, ensure that reinforced steel bar strength it is effective transmit and The globality of node region removes sleeve grouting from and connects this link, solves existing vertical prefabricated components joint reinforcing bar connection The problems of, the mode of the vertical prefabricated components node connection of precast concrete is simplified, facilitates constructing operation, improves and apply Working medium amount saves project cost, and shortens the construction time, strengthens the integrated connection between vertical member.
As a kind of preferred embodiment of the invention, the step (3) in, on one-time-concreting concrete finished surface Installation shoring is with lateral support upper layer precast concrete vertical member to make it stable.
As one embodiment of the present invention, the precast concrete horizontal member is that precast concrete overlaps beam slab.
As one embodiment of the present invention, the precast concrete vertical member is precast concrete frame column.
Compared with prior art, the present invention has following significant effect:
The present invention by node cast-in-place concrete realize joint reinforcing bar connection, ensure that reinforced steel bar strength it is effective transmit with And the globality of node region.
(2) the present invention eliminates sleeve grouting and connects this link, solves existing vertical prefabricated components joint reinforcing bar connection The problems of, the mode of the vertical prefabricated components node connection of precast concrete is simplified, facilitates constructing operation, improves and apply Working medium amount saves project cost, and shortens the construction time, strengthens the integrated connection between vertical member.
Detailed description of the invention
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1;
Fig. 2 is the structure chart that the embodiment of the present invention 1 is equipped with shoring;
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2.
In figure, 1, upper layer precast concrete frame column;2, lower layer's precast concrete frame column;3, precast concrete composite beam Plate;4, a concreting region;5, second coagulation soil pours node region;6, upper layer precast concrete frame column is vertical Muscle;7, the vertical muscle of lower layer's precast concrete frame column;8, the gluten of precast concrete overlapping beam slab;9, precast concrete composite beam The bottom muscle of plate;10, the supporting steel truss in upper layer precast concrete frame column;11, shoring.
Specific embodiment
Embodiment 1
As illustrated in fig. 1 and 2, in the present embodiment, precast concrete horizontal member is that precast concrete overlaps beam slab 3, in advance Concrete vertical member processed is precast concrete frame column, as upper layer precast concrete frame column 1 and lower layer's precast concrete Frame column 2, the node of the present embodiment are frame column middle layer intermediate nodes.
A kind of novel vertical prefabricated components joint connecting method, specifically includes the following steps:
(1) hoisting prefabricated concrete folding beam slab 3 is tied up on the upper surface of precast concrete overlapping beam slab 3 to installation site Prick the gluten 8 of precast concrete overlapping beam slab, adjustment precast concrete overlapping 3 bottom muscle 9 of beam slab and lower layer's precast concrete frame The position of the vertical muscle 7 of column 2, the vertical muscle 6 of upper layer precast concrete frame column 1.The anchorage length of each member reinforcing steel bar must meet accordingly The requirement of specification or regulation;
(2) after being checked and accepted to reinforcing bar binding, beam slab 3 is overlapped to the precast concrete for having bound gluten and carries out a coagulation Soil pours, that is, forms a concreting region 4, while in precast concrete overlapping beam slab 3 and upper layer precast concrete frame Trestle 1, lower layer's precast concrete frame column 2 node region remain for the space that second coagulation soil pours in advance, it is as secondary mixed Solidifying soil pours node region 5, and reserves tongue and groove in the root of precast concrete overlapping beam slab 3 and the grouting of second coagulation soil is facilitated to pour It builds.
(3) after the concrete wait pour reaches design strength, one-time-concreting concrete finished surface is formed, and lifting upper layer is prefabricated Concrete frame trestle 1 will be embedded in the upper layer precast concrete vertical member 1 and stretch out the support of its lower end to installation site Steel truss 10 is placed on lower layer's precast concrete vertical member 2, and supporting steel truss 10 can be a variety of by channel steel, angle steel, steel pipe etc. Material is made.Shoring 11 is installed simultaneously, lateral support upper layer precast concrete frame column 1 makes it stable.Diagonal brace system System can be using the diagonal brace system in aluminum alloy mould plate, can also be using other support systems such as bowl buckle framves.
(4) in precast concrete overlapping beam slab 3 and upper layer precast concrete frame column 1, lower layer's precast concrete frame column 2 Node region pass through supporting steel truss 10 and carry out reinforcing bar binding, bind to check and accept to node area reinforcing bar and complete, formwork and to the section Point region carries out second coagulation soil and pours, and node connection is completed in demoulding after the concrete wait pour reaches design strength.
Embodiment 2
As shown in figure 3, being in place of the difference of the present embodiment and embodiment 1: the node of the present embodiment is among frame column Layer mid-side node, compares from structure, in addition to a reduction of concreting region 4, the construction procedure and embodiment 1 of the present embodiment Construction procedure it is identical.
The implementation of the present invention is not limited to this, and above content according to the present invention is known according to the ordinary skill of this field Knowledge and customary means, under the premise of not departing from above-mentioned basic fundamental thought of the invention, the present invention can also make other a variety of shapes Modification, replacement or the change of formula, all fall within rights protection scope of the present invention.

Claims (3)

1. a kind of vertical prefabricated components joint connecting method, it is characterised in that specifically includes the following steps:
(1) hoisting prefabricated concrete horizontal component binds face on the upper surface of precast concrete horizontal member to installation site Muscle;
(2) a concreting is carried out to the precast concrete horizontal member for having bound gluten, while in precast concrete level The node region of component and precast concrete vertical member remains for the space that second coagulation soil pours in advance, and precast concrete is vertical Component is upper layer precast concrete vertical member and lower layer's precast concrete vertical member;
(3) after the concrete wait pour reaches design strength, one-time-concreting concrete finished surface is formed, lifts upper layer concrete Native vertical member will be embedded in the upper layer precast concrete vertical member and stretch out the support steel truss of its lower end to installation site Frame is placed on lower layer's precast concrete vertical member, and support upper layer precast concrete vertical member makes it stable;Once pouring It builds and shoring is installed with lateral support upper layer precast concrete vertical member on concrete finished surface to make it stable;
(4) supporting steel truss is passed through in the node region of precast concrete horizontal member and precast concrete vertical member carry out steel Muscle binding, formwork simultaneously pour node region progress second coagulation soil, demoulding after the concrete wait pour reaches design strength, Complete node connection.
2. vertical prefabricated components joint connecting method according to claim 1, it is characterised in that: the precast concrete water Flat component is that precast concrete overlaps beam slab.
3. vertical prefabricated components joint connecting method according to claim 2, it is characterised in that: the precast concrete is perpendicular It is precast concrete frame column to component.
CN201710321747.0A 2017-05-09 2017-05-09 A kind of vertical prefabricated components joint connecting method Active CN107090908B (en)

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Publication number Priority date Publication date Assignee Title
CN108999295A (en) * 2018-07-31 2018-12-14 中国二十冶集团有限公司 A kind of construction method of composite beam and cast-in-place column connection structure
CN110644624A (en) * 2019-09-16 2020-01-03 佛山建装建筑科技有限公司 Building connection node and construction method thereof

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MX2015015447A (en) * 2013-05-08 2016-08-05 Kt India Llc Method and system for rapid construction of structurally reinforced concrete structures using prefabricated assemblies and method of making the same.
CN103541434A (en) * 2013-09-22 2014-01-29 沈阳建筑大学 Full-fabricated cross concrete combining joint
CN105544796A (en) * 2015-12-15 2016-05-04 西华大学 Prefabricated assembly type shear wall and butt joint method thereof
CN105625571A (en) * 2016-02-29 2016-06-01 东南大学 Prefabricated concrete beam-column joint using medium-strength prestressed tendons
CN106088348A (en) * 2016-07-29 2016-11-09 初明进 A kind of precast concrete method of attachment
CN109083275A (en) * 2018-09-10 2018-12-25 西北民族大学 Prefabricated post and integral preform beam slab assembly node and its construction method

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