CN108612254A - A kind of prefabricated panel and its connection structure and its construction method - Google Patents

A kind of prefabricated panel and its connection structure and its construction method Download PDF

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Publication number
CN108612254A
CN108612254A CN201810381324.2A CN201810381324A CN108612254A CN 108612254 A CN108612254 A CN 108612254A CN 201810381324 A CN201810381324 A CN 201810381324A CN 108612254 A CN108612254 A CN 108612254A
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CN
China
Prior art keywords
prefabricated panel
connection
cast strip
wallboard module
reinforcing bar
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Application number
CN201810381324.2A
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Chinese (zh)
Inventor
李藏住
Original Assignee
李藏柱
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Application filed by 李藏柱 filed Critical 李藏柱
Priority to CN201810381324.2A priority Critical patent/CN108612254A/en
Publication of CN108612254A publication Critical patent/CN108612254A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/04Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
    • E04C2/06Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
    • 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
    • E04B1/40Separate connecting elements
    • E04B1/41Connecting devices specially adapted for embedding in concrete
    • E04B1/4157Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head

Abstract

The present invention relates to a kind of prefabricated panel and its connection structures and its construction method, wherein prefabricated panel includes wallboard module, enlarged footing is fixed in the pre-buried connection reinforcing bar in the upper and lower end face of wallboard module, the end that connection reinforcing bar stretches out wallboard module, and the size of enlarged footing is more than the outer diameter of connection reinforcing bar.Multiple prefabricated panels prefabricated panel adjacent in the horizontal direction is spliced to form mutually "-" type, T fonts, L-type or cross, and vertical post-cast strip is formed at the link position of prefabricated panel.The lower layer of installation in advance prefabricated panel installs support positioning in four big row of lower layer's prefabricated panel, makes to reserve horizontal post-cast strip space between levels prefabricated panel;By the connection reinforcing bar sleeve connection of levels prefabricated panel;Horizontal post-cast strip concrete is poured, and cement grout is made to flow into sleeve.Good using prefabricated panel connection integrity made from process above, shock resistance is high.

Description

A kind of prefabricated panel and its connection structure and its construction method
Technical field
The present invention relates to assembled architecture fields, and in particular to a kind of prefabricated panel and its connection structure and its construction party Method.
Background technology
Currently, in order to improve construction efficiency, usually previously prepared a large amount of molding prefabricated components, later again to prefabricated Component carries out assembly and builds, and forms assembled architecture.When building precast wall body, advance prefabricated panel upper surface obtained and lower end Face each extends over setting connection reinforcing bar and welds opposite connection steel after last layer prefabricated panel and next layer of prefabricated panel are aligned Muscle is constructed to form precast wall body.
Authorization Notice No. is that the Chinese patent of CN205369690U discloses a kind of assembled architecture prefabricated panel, dry wall The upper surface and lower face of plate are extended multiple connection reinforcing bars.When building precast wall body, the alignment of upper layer and lower layer prefabricated panel Later, two opposite in upper layer and lower layer prefabricated panel connection steel reinforcement abutting joints, and using cold pressing sleeve connection so that upper and lower two Layer precast wall body Primary Location.And then the gap grouting treatment between upper layer and lower layer prefabricated panel, realize that upper layer and lower layer is pre- The fixation of wall processed.
But in actual mechanical process, connection reinforcing bar is inserted into cold pressing sleeve, needs that reinforcing bar is perfused in being cold-pressed sleeve Adhesive glue, and cold pressing sleeve is squeezed using special tool.And between upper layer prefabricated panel and lower layer's prefabricated panel Usually reserved gap very little, it has not been convenient to operate.
In addition, the gap between upper layer and lower layer prefabricated panel forms horizontal straight joint so that between levels prefabricated panel Globality poor.And the gap between upper layer and lower layer prefabricated panel is handled with mortar, and intensity is strong less than prefabricated panel concrete Degree, forms weak load-bearing point, affects the shock resistance of the globality of building.
Invention content
The object of the present invention is to provide a kind of prefabricated panel and its connection structure, the companies of the levels prefabricated panel of the structure Good integrity is connect, shock resistance is high.
The above-mentioned purpose of the present invention is achieved by the following technical programs:A kind of prefabricated panel, including wallboard module, wall Enlarged footing is fixed in the pre-buried connection reinforcing bar in the upper and lower end face of plate module, the end that connection reinforcing bar stretches out wallboard module, enlarged footing Size is more than the outer diameter of connection reinforcing bar;Wallboard module includes several vertically arranged reinforcement constructional columns.Adjacent two pieces prefabricated Horizontal post-cast strip is set between wallboard, connects reinforcing bar sleeve connection;Sleeve includes cylinder and is integrally connected to cylinder both ends Necking offers several injected holes on cylinder;After enlarged footing stretches into sleeve inner, horizontal post-cast strip concrete, coagulation are poured Soil paste liquid is flowed into from injected hole in cylinder, and after cement slurry sets, enlarged footing is fixed on inner barrel, can limit connection steel Muscle is extracted, to which the connection of the prefabricated panel at both ends is integral.
By above technical scheme, adjacent prefabricated panel is linked together well, improves the globality of wallboard, And sleeve connection structure converts the pulling force of splice to the pressure to the concrete of cylinder, in turn using clamping principle On conduction to cylinder, connection is more secured, solves the problems, such as that prior art wallboard connection integrity and shock resistance are poor.
Further, it includes vertical stiffener cage to reinforce constructional column, and vertical stiffener cage includes more vertical reinforcements Muscle and the first stirrup for setting the periphery hoop of more vertical strengthening ribs.
Further, the elongated setting of vertical strengthening ribs, both ends stretch out the upper and lower end face of wallboard module, are provided at both ends with expansion Head.
Further, wallboard module includes several horizontally arranged reinforcement construction beams, and reinforcing construction beam includes Horizontal stiffener cage, horizontal stiffener cage include more horizontal stiffeners and set the periphery hoop of more horizontal stiffeners Second stirrup.
Further, reinforce top or bottom that construction beam is set to wallboard module;A part for second stirrup is embedded in wall In plate module, a part exposes wallboard module.
Further, several parallel hollow holes are vertically provided among wallboard module.
Further, wall thickness direction is provided with double-layer prestressed reinforcing bar or prestress wire in wallboard module.
Further, the side end face of wallboard module is embedded with dowel, and a part for dowel is embedded in wallboard module, A part is exposed.
Further, the end of dowel exposing wallboard module is provided with enlarged footing.
Further, the side end face of wallboard module is embedded with U-shaped reinforcing bar, and the open end of U-shaped reinforcing bar is embedded in wallboard module.
Further, window opening and/or door opening are reserved on wallboard module.
Further, it is arranged in the upper end of window opening and/or door opening in wallboard module and reinforces construction beam, window opening and/or door Constructional column is reinforced in the setting of hole both sides.
Further, it is provided with framework of steel reinforcement in wallboard module.
Further, the surface of wallboard module is integrally connected with additional layer structure, and the additional layer structure includes decorative layer And/or insulating layer and/or fireprotection layer and/or puigging.
Further, it is provided with preheating embedding line in the additional layer structure.
Further, the pre-buried iron plate on wallboard module for installing connection and/or pre-buried angle bar and/or bolt collar.
Using above technical scheme, vertical post-cast strip is set between two pieces of adjacent prefabricated boards of same layer horizontal direction, And dowel is set in prefabricated panel side end face, and sleeve connection is carried out, enhance the globality of same layer wallboard.
Reinforce constructional column and reinforce the setting of construction beam, improves the holistic resistant behavior of prefabricated panel, can fit For the building demand of clear height bigger, while door and window side and top can also be protected.
The hollow setting of prefabricated panel, alleviates dead weight, improves heat preservation, sound insulation and the performances such as heat-insulated.
The setting of pre-buried angle bar and bolt collar facilitates installation.
Will heat preservation, decoration, fire prevention and the additional layer structures integration such as heat-insulated processing, it is quality controllable, and reduce the later stage Working procedure improves building integral construction efficiency, shortens the duration.
Another object of the present invention is to provide a kind of connection structure of prefabricated panel, convenience and other prefabricated components phases Even.
Above-mentioned purpose is mainly achieved by the following technical programs:A kind of connection structure of prefabricated panel, including it is above-mentioned Prefabricated panel, prefabricated panel adjacent in the horizontal direction are spliced to form mutually "-" type, T fonts, L-type or cross, in advance Vertical post-cast strip is formed at the link position of wallboard processed.
Further, the dowel and U-shaped reinforcing bar of adjacent two pieces of prefabricated panel side end faces setting are connected with each other.
Further, more vertical elongated reinforcing bars are provided in vertical post-cast strip, and by more vertical elongated reinforcing bar peripheries Bind round the third stirrup set.
Further, adjacent prefabricated panel is spliced to form mutually "-" type, and the side of vertical post-cast strip is provided with steel Column.
Further, the side of steel column is connected with peg, and peg is embedded in vertical post-cast strip.
Further comprising above-mentioned prefabricated panel, in the vertical direction adjacent prefabricated panel splice mutually, it is prefabricated The junction of wallboard forms horizontal post-cast strip;The connection reinforcing bar of two prefabricated panels uses sleeve connection, and two are opened up on sleeve With connect the matched mounting hole of reinforcing bar outer diameter.
Further, it is provided with vertical hollow hole in prefabricated panel, casting concrete and horizontal post-cast strip in hollow hole It connects integral.
Further, shearing resistance muscle is arranged in vertical direction in hollow hole, and shearing resistance muscle one end is stretched into lower layer's prefabricated panel, another End is stretched into the prefabricated panel of upper layer.
Further, it is provided with reinforcing beam above or below horizontal post-cast strip, is poured after the concrete and level of reinforcing beam The concrete of band pours together.
Further, the both sides of horizontal post-cast strip are provided with precast floor slab, and horizontal post-cast strip is by upper and lower two pieces of prefabricated panels And the precast floor slab connection of the left and right sides is integral.
Further, the width of horizontal post-cast strip is less than the thickness of prefabricated panel, and precast floor slab is overlapped on prefabricated panel Upper surface.
Further, the width of horizontal post-cast strip is more than the thickness of prefabricated panel, and precast floor slab utilizes and is set to its bottom Support column support positioning.
Further, precast floor slab is embedded with close to the end face of horizontal post-cast strip expands head dowel, expands head dowel set Cylinder connection.
It is a further object to provide a kind of construction methods of prefabricated panel, with high construction efficiency, upper and lower wall The advantages of plate connection is reliable, good integrity.
The object above of the present invention is achieved through the following technical solutions, a kind of construction method of prefabricated panel:Including Following construction procedure:S1, installation lower layer prefabricated panel, and it is fixed;S2, installation upper layer prefabricated panel, are used in combination supporting apparatus Support positioning, makes to reserve horizontal post-cast strip space between levels prefabricated panel;S3, the connection steel by levels prefabricated panel Muscle sleeve connection;S4, horizontal post-cast strip concrete is poured, and cement grout is made to flow into sleeve.
By above technical scheme, the connection that prefabricated panel connects reinforcing bar is more convenient, need not be individually in the milk Operation, high construction efficiency, and good connecting effect;Meanwhile between upper and lower prefabricated panel being concrete structure, avoid the prior art The setting of the weak structures layers such as middle horizontal screed, improves the shock resistance of wall.
In conclusion the invention has the advantages that:
1, the prefabricated panel lightweight, high-strength, and connected with sleeve technology using connection reinforcing bar, strengthen contiguous prefabricated wallboard Connection, good integrity, shock resistance are good;
2, hollow-core construction saves material, and improves thermal and insulating performance;It is decoration integrated, reduce the construction of whole building Process shortens duration, and reliable in quality;
3, construction procedure is simple, and without carrying out individual grouting operation, sleeve connection requires aligning accuracy low, the quick height of installation Effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of prefabricated panel;
Fig. 2 is the structural schematic diagram that connection reinforcing bar is in elongated setting in prefabricated panel;
Fig. 3 is the structural schematic diagram that the pre-buried setting of reinforcing bar is connected in prefabricated panel;
Fig. 4 is that the structural schematic diagram that reinforcing bar is U-shaped is connected in prefabricated panel;
Fig. 5 is to reinforce the structural schematic diagram that constructional column is done for display;
Fig. 6 is the structural schematic diagram made for display vertical strengthening ribs;
Fig. 7 is the enlarged drawing of part A in Fig. 5;
Fig. 8 is the enlarged drawing of part B in Fig. 6;
Fig. 9 is the partial schematic diagram made for the U-shaped reinforcing bar on display wallboard module;
Figure 10 is the structural schematic diagram that window opening is opened up in prefabricated panel;
Figure 11 is the structural schematic diagram that door opening is opened up in prefabricated panel;
Figure 12 is the structural schematic diagram of the horizontal stiffener cage of setting in prefabricated panel;
Figure 13 is the schematic diagram that horizontal stiffener cage is arranged at the top of prefabricated panel;
Figure 14 is the stereogram that horizontal stiffener cage is arranged at the top of prefabricated panel;
Figure 15 is the schematic diagram that built-in fitting is arranged on prefabricated panel;
Figure 16 is the structural schematic diagram of prefabricated panel built-in bolt sleeve;
Figure 17 is the schematic diagram of prefabricated panel surface setting additional layer structure;
Figure 18 is the vertical view of first layer wall;
Figure 19 is the attachment structure schematic diagram of two wallboard modules;
Figure 20 is the schematic diagram that vertical post-cast strip is poured among two wallboard modules;
Figure 21 is that the side wall of two wallboard modules fixes the schematic diagram of U-shaped stiffener;
Figure 22 is the schematic diagram of two L-shaped connections of wallboard module;
Figure 23 is the schematic diagram of the T-shaped connection of wallboard module;
Figure 24 is the schematic diagram that wallboard module is in cross connection;
Figure 25 is the schematic diagram that precast wall body is connected with I-steel;
Figure 26 is the schematic diagram that precast wall body is connected with steel column;
Figure 27 is the schematic diagram that two precast wall bodies form horizontal post-cast strip;
Figure 28 is the structural schematic diagram that hollow hole is set in prefabricated panel;
Figure 29 is the schematic diagram of setting shearing resistance muscle inside prefabricated panel;
Figure 30 is the schematic diagram of the hollow hole temporary plugging of lower layer's prefabricated panel when pouring horizontal post-cast strip;
Figure 31 is structural schematic diagram when prefabricated panel is connected with precast floor slab;
Figure 32 is that prefabricated panel and precast floor slab week side open up the schematic diagram for pouring mouth;
Figure 33 is the connection relationship diagram of hollow preform wallboard and precast floor slab;
When Figure 34 is prefabricated panel and precast floor slab overlap joint, the schematic diagram of setting reinforcing beam below horizontal post-cast strip;
When Figure 35 is prefabricated panel and precast floor slab overlap joint, the schematic diagram of setting reinforcing beam above horizontal post-cast strip;
Figure 36 is the structural schematic diagram that prefabricated panel and precast floor slab build installation;
Figure 37 is the structural schematic diagram of closed-entry reinforcing steel bar connecting sleeve tube middle cylinder body;
Figure 38 is the end view of necking;
Figure 39 is the cooperation schematic diagram of sleeve and connection reinforcing bar;
Figure 40 is the connection relationship diagram of closed-entry reinforcing steel bar connecting sleeve tube and prefabricated board;
Figure 41 is the structural schematic diagram of split type cylinder;
Figure 42 is the connection relationship diagram of split type cylinder and prefabricated board;
Figure 43 is the structural schematic diagram that sleeve is connected with two reinforcing bars of vertical state;
Figure 44 is the structural schematic diagram for stretching into fastening piece type sleeve outside;
Figure 45 is to stretch into fastening piece type sleeve and the assembling schematic diagram for connecting reinforcing bar outside;
In figure, 1, wallboard module;11, reinforcing bar is connected;110, enlarged footing;12, reinforce constructional column;121, vertical stiffener cage; 122, vertical strengthening ribs;123, the first stirrup;13, hollow hole;14, dowel;15, U-shaped reinforcing bar;16, reinforce construction beam;160、 Horizontal stiffener cage;161, horizontal stiffener;162, the second stirrup;17, built-in fitting;171, pre-embedded steel slab;172, pre-buried angle Iron;173, bolt collar;18, additional layer structure;181, decorative layer;182, insulating layer;183, fireprotection layer;184, puigging;
2, first layer wall;21, prefabricated panel;211, window opening;212, door opening;22, vertical post-cast strip;221, vertical elongated steel Muscle;222, third stirrup;223, U-shaped stiffener;23, steel column;231, peg;232, peg hole;24, horizontal post-cast strip;25、 Shearing resistance muscle;
3, sleeve;31, mounting hole;
4, precast floor slab;41, expand head dowel;
5, reinforcing member;
6, cylinder;61, necking;611, transition circular conical surface;62, injected hole;63, connecting plate;631, through-hole;64, barrier element; 65, clamping block;651, blocked hole;66, shrapnel.
Specific implementation mode
Invention is further described in detail with reference to embodiments.
Embodiment one:As shown in Figures 1 and 2, a kind of prefabricated panel, prefabricated panel is according to actual conditions according to mold size It pours to form wallboard module 1.The pre-buried connection reinforcing bar 11 in the upper and lower end face of wallboard module 1, connection reinforcing bar 11 stretch out wallboard module 1 End fix enlarged footing 110, the size of enlarged footing 110 is more than the outer diameter of connection reinforcing bar 11, to facilitate wallboard module 1 subsequently It is spliced to form wallboard.The size of the enlarged footing 110 can be the diameter of enlarged footing 110.
Connection reinforcing bar 11 can be elongated through the setting of wallboard module 1.One can be arranged in thickness direction by connecting reinforcing bar 11 Layer or two layers, the regular array in wallboard module 1.
As shown in figure 3, connection reinforcing bar 11 may not be elongated setting, the pre-buried part in wallboard module 1 can be Straight muscle or curved muscle, also can connect into U-shaped by two(See Fig. 4).
As shown in figs. 5 and 6, wallboard module 1 includes several vertically arranged reinforcement constructional columns 12.In conjunction with Fig. 7, add Competent structure column 12 includes vertical stiffener cage 121, and vertical stiffener cage 121 includes more vertical strengthening ribs 122 and will be more Bind round the first stirrup 123 set in the periphery of root vertical strengthening ribs 122.
As shown in Fig. 6 and Fig. 8, the upper and lower end face of wallboard module 1, both ends are stretched out in 122 elongated setting of vertical strengthening ribs, both ends It is provided with enlarged footing 110.It is used at this point, vertical strengthening ribs 122 can serve as connection reinforcing bar 11.
As shown in figure 5, several parallel hollow holes 13 are vertically provided among wallboard module 1, to mitigate wallboard dead weight.
Further, double-layer prestressed reinforcing bar or prestress wire can also be set in wall thickness direction in wallboard module 1, To enhance the anti-shear ability of prefabricated panel.Vertical strengthening ribs 122 can also be regard as prefabricated power reinforcing bar.
As shown in Fig. 6 and Fig. 8, the side end face of wallboard module 1 is embedded with dowel 14, and a part for dowel 14 is embedded in In wallboard module 1, a part is exposed.The end that dowel 14 exposes wallboard module 1 is provided with enlarged footing 110.Facilitate the later stage will The adjacent prefabricated panel connection of two pieces of horizontal directions.
Further, as shown in figure 9, in order to reinforce the adjacent two pieces of prefabricated panels connection of horizontal direction, the side of wallboard module 1 End face is embedded with U-shaped reinforcing bar 15, and the open end of U-shaped reinforcing bar 15 is embedded in wallboard module 1.
As shown in Figure 10 and Figure 11, window opening 211 or door opening 212 can be reserved on prefabricated panel 21, it is convenient subsequently at this Door and window is installed at position.Constructional column 12 is reinforced in window opening 211 and the setting of 212 both sides of door opening.
As shown in figure 12, several can also be set in the horizontal direction in wallboard module 1 and reinforce construction beam 16, reinforce construction Beam 16 includes horizontal stiffener cage 160, and horizontal stiffener cage 160 includes more horizontal stiffeners 161 and by more levels Bind round the second stirrup 162 set in the periphery of reinforcing rib 161.The end of horizontal stiffener 161 can also be arranged to enlarged footing 110(Figure In be not shown), and stretch out the side end face of prefabricated panel.
Reinforcing construction beam 16 can be arranged in the upper end of door opening 212, can also be arranged in the upper end of window opening 211 under End.
As shown in figures 13 and 14, reinforce the top that construction beam 16 is set to wallboard module 1;One of second stirrup 162 Divide and be embedded in wallboard module 1, a part exposes wallboard module 1, to facilitate the later stage that post-cast strip is arranged at the top of it, with adjacent wall board Form preferably connection.Similarly, the program can also be designed in the bottom of prefabricated panel.
As shown in Figure 15 and Figure 16, built-in fitting 17 can be arranged in the end of prefabricated panel 21, and built-in fitting 17 can be pre-buried Steel plate 171 or pre-buried angle bar 172 or bolt collar 173, when prefabricated panel 21 is connect or adjacent two prefabricated with floor When wallboard 21 connects, it can be bolted outside link position or reinforcement of weld steel plate.
As shown in figure 17, the surface of wallboard module 1 is integrally connected with additional layer structure 18, to reduce construction in later period work Sequence.Additional layer structure 18 includes decorative layer 181 and/or insulating layer 182 and/or fireprotection layer 183 and/or puigging 184.For example, When prefabricated panel 21 is Side fascia, it is located at one side setting light fire-proof layer 183 and insulating layer 182 within the walls, most surface setting Decorative layer 181;One side outside wall can set gradually insulating layer 182, fireprotection layer 183, grid surface, plastering sand from the inside to surface Pulp layer and decorative layer 181.When prefabricated panel 21 is lining, puigging 184 can be arranged in surface.
Preferably, can also preheating embedding line be set in additional layer structure 18, so that later stage electric wire, cable wear peace Dress.In the prior art, preheating embedding line is directly arranged in main body wall, and main body wall construction service life requires 70 years, and general 30 Year when need to carry out large repairs to pipeline, when overhaul, main body wall construction can be damaged.The program is by steel pipe buried in advance in extra play In structure 18, when overhaul, even if additional layer structure 18 has damage, the safety of major structure of construction is nor affected on.And it will be attached Adding storey structure 18 can also carry out whole replacements at any time.
In addition, framework of steel reinforcement can also be arranged in prefabricated panel 21, make change reinforced concrete structure, enhancing globality and Stress performance.Framework of steel reinforcement can with it is in the prior art identical.
Embodiment two:
A kind of connection structure of prefabricated panel, is made of the splicing prefabricated wallboard in embodiment one.As shown in figure 18, in advance on ground First layer wall 2 is constructed on base, prefabricated panel 21 is horizontally extending, and a word is used between adjacent two prefabricated panels 21 Type mode is spliced.At angular position, adjacent two prefabricated panels 21, which are vertically arranged and are spliced to form using L-type mode, to be turned Angle.When wall and interior wall splice, two prefabricated panels 21 and another prefabricated panel 21 spliced in "-" type mode are with T-type Mode is spliced.When room area divides, four prefabricated panels 21 may be used cross mode and splice, and space is divided into four Point.
This is illustrated for sentencing the connection types of two adjacent prefabricated panels 21.As shown in figure 19, adjacent two pieces Vertical post-cast strip 22 is formed at the link position of prefabricated panel 21, opposite two dowels 14 are connected using sleeve 3(Sleeve 3 Concrete structure and connection type be introduced in most back segment).The both ends of sleeve 3 open up respectively to be matched with 110 outer diameter of enlarged footing Mounting hole 31, when prefabricated panel 21 splices, opposite two connections reinforcing bars 11 are distinguished to two mounting holes 31 of insertion sleeve 3 Place realizes the connection of prefabricated panel 21.
As shown in figure 20, more vertical elongated reinforcing bars 221 are provided in vertical post-cast strip 22, and by more vertical elongated steel Bind round the third stirrup 222 set in 221 periphery of muscle.Such as vertical elongated reinforcing bar 221 is four, and sleeve 3 is surrounded, waits for vertical post-cast strip After 22 casting concretes, the concrete around sleeve 3 is formed due to being acted on by vertical elongated reinforcing bar 221 and third stirrup 222 More firm reinforcement structure prevents from deforming, to strengthen the connection of adjacent two pieces of prefabricated panels 21.Even if certain elongated reinforcing bar Sleeve 3 is not surrounded, its own can also play the role of reinforcing late poured band structure.
As shown in figure 21, when the U-shaped stiffener 223 of 21 side end face of prefabricated panel setting, vertical elongated reinforcing bar 221 can To penetrate inside U-shaped stiffener 223, the cooperation of third stirrup 222 is added, makes to form three inside vertical post-cast strip 22 It is cross one another to socket grid, greatly strengthen the connection effect of two contiguous prefabricated wallboards 21.
As shown in Figure 22 and Figure 23, when wallboard is L-type or T set up of character patt ern, vertical elongated reinforcing bar 221 can be by dowel 14 enlarged footing 110 is surrounded, and after concrete setting, enlarged footing 110 is more difficult to extract, to strengthen between prefabricated panel 21 Connection.
As shown in figure 24, when wallboard is cross, the connection of sleeve 3 may be used and the company of vertical elongated reinforcing bar 221 is set Mode is connect, details are not described herein again.
As shown in Figure 25 and Figure 26, when adjacent prefabricated panel 21 is spliced to form mutually "-" type, in vertical post-cast strip 22 Side steel column 23 can also be set.Steel column 23 can be I-steel or steel pipe etc..The side of steel column 23 is connected with peg 231, Peg 231 is embedded in vertical post-cast strip 22.Peg hole 232 can be opened up on sleeve 3, peg 231 passes through the bolt on sleeve 3 It is welded with girder steel after nail hole 232.To further strengthen the connection of prefabricated panel 21 and steel column 23.
Embodiment three:
A kind of connection structure of prefabricated panel is vertically spliced to form by the prefabricated panel 21 in embodiment one.As shown in figure 27, exist Adjacent prefabricated panel 21 splices mutually on vertical direction, and the junction of prefabricated panel 21 forms horizontal post-cast strip 24;Two pre- The connection reinforcing bar 11 of wallboard 21 processed is connected using sleeve 3, opened up on sleeve 3 two with connect the matched mounting hole of 11 outer diameter of reinforcing bar 31。
As shown in figure 28, when being provided with vertical hollow hole 13 in prefabricated panel 21, casting concrete in hollow hole 13 Connect with horizontal post-cast strip 24 it is integral, to further strengthen the connection of upper layer and lower layer prefabricated panel 21.
Further, as shown in figure 29, vertical direction setting shearing resistance muscle 25 in hollow hole 13,25 one end of shearing resistance muscle is stretched into down In layer prefabricated panel 21, the other end stretches into upper layer prefabricated panel 21.Shearing resistance muscle 25 strengthens two pieces of prefabricated panels 21 in level Shear resistance on direction makes the two preferably be combined into overall structure.
It as shown in figure 30, can be by the hollow hole of lower layer's prefabricated panel 21 before pouring 24 concrete of horizontal post-cast strip 13 are blocked hollow hole 13 with materials such as template or rubber, and block-up position is located under 21 top end face of lower layer's prefabricated panel Side.When casting concrete, if concrete upper surface is more than the lower surface certain altitude of upper layer prefabricated panel 21, such as can To be 100mmm.This scheme, both reinforced 21 junction of upper and lower prefabricated panel, also remained prefabricated panel 21 Hollow-core construction.
Example IV:
The difference is that, as shown in figure 31, the both sides of horizontal post-cast strip 24 are provided with precast floor slab 4 with embodiment three, horizontal Post-cast strip 24 connects the precast floor slab 4 of upper and lower two pieces of prefabricated panels 21 and the left and right sides integral.The width of horizontal post-cast strip 24 Degree can be more than the thickness of prefabricated panel 21, and precast floor slab 4 utilizes the support column support positioning for being set to its bottom.
Precast floor slab 4 is embedded with close to the end face of horizontal post-cast strip 24 expands head dowel 41, and expanding head dowel 41 can be with 11 structure of connection reinforcing bar of prefabricated panel 21 is identical, expands head dowel 41 and is connected with sleeve 3.
When construction, after precast floor slab 4 lifts in place, it will first expand the sleeve 3 of head dowel 41 and be attached, then lift again Upper layer prefabricated panel 21, and the connection sleeve 3 of reinforcing bar 11 is attached;Finally pour 24 concrete of horizontal post-cast strip.
Before upper layer prefabricated panel 21 lifts, reinforcing member 5 can be fixed in the upper end of first layer wall 2 in advance(In figure not It shows), then in the prefabricated panel 21 of 5 upper lifting second layer walls of reinforcing member.In the present embodiment, reinforcing member 5 can be I-steel, which can also be other, can play the role of the support element of temporary support.When follow-up casting concrete, by reinforcing member 5 one It rises in being cast in.
Assistant reinforcement reinforcing bar can be set in horizontal post-cast strip 24 to reinforce the connection to peripheral member, assistant reinforcement reinforcing bar 223 scheme of vertical elongated reinforcing bar 221 and U-shaped stiffener in such as vertical post-cast strip 22 may be used, details are not described herein again.
As shown in figure 32, precast floor slab 4 and prefabricated panel 21 can be arranged to hollow-core construction, before casting concrete, Lower layer's prefabricated panel 21 and the hollow of both sides precast floor slab 4 are blocked;When pouring, concrete can enter prefabricated panel 21 With precast floor slab 4 it is hollow in one small section, such as can be 100mm, to reinforce the link node.
When pouring, concrete can enter level from the notch between 4 end face of upper layer prefabricated panel 21 and precast floor slab Post-cast strip 24.
As shown in figure 33, the width of horizontal post-cast strip 24 might be less that the thickness of prefabricated panel 21, precast floor slab 4 overlap In the upper surface of prefabricated panel 21.At this point, horizontal post-cast strip 24 is located in the space of relative closure, and when pouring, upper layer dry wall The hollow hole 13 of plate 21 can be used as slip casting channel, realize pouring to horizontal post-cast strip 24.
Further, as shown in figure 34, the lower section of horizontal post-cast strip 24 is provided with reinforcing beam 6, the concrete of reinforcing beam 6 with The concrete of horizontal post-cast strip 24 pours together.In conjunction with Figure 14, construction beam 16 is reinforced in the 21 top setting of lower layer's prefabricated panel, reinforces The part for constructing the second stirrup 162 of beam 16 exposes lower layer's prefabricated panel 21, and is poured after stretching to 6 part of reinforcing beam and level Band 24.
By the way that assistant reinforcement reinforcing bar is arranged in horizontal post-cast strip 24, make reinforcing beam 6 and 24 more preferable landform of horizontal post-cast strip At an entirety.The program is substantially to extend horizontal post-cast strip 24 in the height direction so that post-cast strip and reinforcement The higher girder construction of Formation cross-section together of beam 6, to increase the ability that it bears top load.
As shown in figure 35, reinforcing beam 6 can also be arranged in the top of horizontal post-cast strip 24, to facilitate the installation of template.
Embodiment five:
A kind of construction method of prefabricated panel includes the following steps as shown in figure 36:
S1, first layer prefabricated panel 21 are vertically fixedly supported on ground, and two side planes of first layer prefabricated panel 21 are all made of Holder supports, and improves the stability of first layer prefabricated panel 21;First layer prefabricated panel 21 is in the light of actual conditions built, phase There are vertical post-cast strips 22 between two adjacent the first prefabricated panels 21;
S2, the both sides installation first layer precast floor slab 4 in horizontal post-cast strip 24, precast floor slab 4 is overlapped on the upper of prefabricated panel 21 End face carries out temporary support positioning with bottom support column;
22 liang of vertical post-cast strip side template is installed;Preheating embedding line is installed in vertical post-cast strip 22;
S3, the expansion head dowel 41 of precast floor slab 4 is connected with sleeve 3, and installs elongated reinforcing bar and stirrup etc. assistant reinforcements steel Muscle;A supporting rack is fixed in two ends of the upper surface of first layer prefabricated panel 21 respectively, and supporting rack uses in the present embodiment I-steel;Sleeve 3 is socketed on the connection reinforcing bar 11 of first layer prefabricated panel 21;
Pour 22 concrete of vertical post-cast strip;
S4, by the lifting of second layer prefabricated panel 21 to the top of first layer prefabricated panel 21, after the two alignment, slowly move down the Two layers of prefabricated panel 21, will be in 11 insertion sleeve 3 of connection reinforcing bar of 21 bottom of second layer prefabricated panel;Second layer prefabricated panel 21 Installation is in place, reserves 24 space of horizontal post-cast strip;
S5, second layer prefabricated panel 21 side plane using holder Auxiliary support position;
S6, the template for installing horizontal post-cast strip 24;Preheating embedding line is installed in horizontal post-cast strip 24 and pours horizontal post-cast strip 24 Concrete;
S7, support column is installed on first layer precast floor slab 4;
S8, S2-S7 steps are repeated, until construction to architectural top;
S9, all temporary support assembly and template are removed;
S10, installation building interior pipeline, the construction of assembled architecture are completed.
Tube-in-tube structure and attaching method thereof is introduced:
Sleeve 3 may be used closed-entry reinforcing steel bar connecting sleeve tube and stretch into fastening piece type sleeve outside.
Closed-entry reinforcing steel bar connecting sleeve tube:
As shown in figure 37, closed-entry reinforcing steel bar connecting sleeve tube includes cylinder 6 and is integrally connected to the necking 61 at 6 both ends of cylinder, cylinder 6 On offer several equally distributed injected holes 62, convenient for cement mortar flow into cylinder 6 inside;In conjunction with Figure 38, necking 61 is circle Mouthful, 61 inner wall of necking is conical surface-shaped, and the larger one end of circular conical surface is towards the inside of cylinder 6;In conjunction with Figure 39, closed-entry reinforcing bar connects The connection structure of female connector cylinder is made of connection reinforcing bar 11 and cylinder 6, and 11 one end of connection reinforcing bar is pre-buried to be fixedly connected in prefabricated board 7 Portion, the other end are exposed at 7 outside of prefabricated board and are connected with enlarged footing 110, enlarged footing in one end end far from prefabricated board 7 110 outer wall radial dimension is more than the outer wall radial dimension of connection reinforcing bar 11 and the inner wall radial dimension less than necking 61, expands First 110 can stretch into from necking 61 inside cylinder 6.
As shown in figure 40, cement mortar is after injected hole 62 flows into the inside of cylinder 6 and solidifies and form concrete, enlarged footing 110 can be fixed on inside cylinder 6, and the connection reinforcing bar 11 that can limit 6 both ends of cylinder is pulled out towards the direction movement being located remotely from each other Go out cylinder 6, to the prefabricated board 7 to both ends(It is prefabricated that rectangular block shape structure of the reinforcing bar 11 far from 6 one end of cylinder is connected in Figure 40 The schematic diagram of plate 7)It is attached, improves the bonding strength between two prefabricated boards 7.Enlarged footing 110 is close to connection reinforcing bar 11 One end is round platform planar, and enlarged footing 110 is less than the other end close to one end of prefabricated board 7;For ease of narration, the circular conical surface of necking 61 Transition circular conical surface 611 is defined as, by 611 integrally connected of transition circular conical surface between 6 end of necking 61 and cylinder, in connection reinforcing bar After 11 by the active force for extracting cylinder 6 direction, round table surface squeezes concrete, and concrete is by squeezing action power(Such as F arrows in Figure 40 The signified direction of head is the schematic diagram of force direction)Pass to transition circular conical surface 611, the anti-work that transition circular conical surface 611 generates Firmly there is component radially to enlarged footing 110, radially compress enlarged footing 110, therefore, transition circular conical surface 611 can make The load of cylinder 6 and internal concrete carrying bigger, improves the company between connection reinforcing bar 11 and enlarged footing 110 and cylinder 6 Connect intensity.
Compared with existing grout sleeve, which does not need individual grouting operation, but in casting concrete, coagulation Soil paste liquid enters the connection that cylinder 6 completes connection reinforcing bar 11, and operation is more convenient and does not need special grouting material, saves About cost.It transmits further, since the program is depended on pressure, is stung by cohering between grouting material and reinforcing bar compared to grout sleeve It closes, connection is relatively reliable.
The shape of necking 61 can be round, can also be the various shapes such as rectangular, strip and ellipse, enlarged footing 110 section is adapted with the shape of necking 61.It is effectively transferred to cylinder 6 in order to make the pressure of enlarged footing 110 pass through concrete On, the size big 1 ~ 5mm, preferably 2 ~ 3mm of the size ratio enlarged footing 110 of necking 61.
As shown in Figure 41 and Figure 42, cylinder 6 has separate structure, can be split as two halves in an axial direction.Two halves cylinder 6 is mutual Close one end outer surface has been fixedly connected with connecting plate 63, and through-hole 631,6 phase of two halves cylinder are offered on connecting plate 63 Mutually docking split after, the through-hole 631 on connecting plate 63 can be mutually aligned, can by will sell or the pin members such as bolt simultaneously insertion two In a through-hole 631 being mutually aligned, pin joint is carried out to two connecting plates 63, limits two halves cylinder 6 towards the direction phase being located remotely from each other Mutually separation.
When the distance between two prefabricated boards 7 are smaller, the connection reinforcing bar 11 being embedded in inside prefabricated board 7 is close to each other The distance between the end face of one end it is also smaller, cylinder 6 can be split as two halves, first will wherein half cylinder 6 be nested in On one of connection reinforcing bar 11, then the other half cylinder 6 is socketed on connection reinforcing bar 11, finally by two halves cylinder 6 along even It connects the axial direction of reinforcing bar 11 and is slided towards direction close to each other, so that the through-hole 631 on connecting plate 63 is mutually aligned, pass through pin member Being inserted into through-hole 631 keeps two halves cylinder 6 stitched together.
As shown in figure 43, when connection be two reinforcing bars of vertical state when, in order to by sleeve 2 before casting concrete energy Enough docking locations for being more easily temporarily fixed at two connection reinforcing bars 11, are unlikely to slide.So position in 6 inner wall of cylinder Set the barrier element 64 for being connected with and enlarged footing 110 being prevented to run through sleeve 2.Barrier element 64 can be located at 6 intermediate disk of cylinder Plate.Further, in order to allow cement mortar to be flowed freely in cylinder 6, barrier element 64 is arranged to hollow annular shape, circle Ring internal diameter is less than the diameter of enlarged footing 110.Alternatively, barrier element 64 can also be radially be arranged the rod piece along cylinder 6.
Stretch into fastening piece type sleeve outside:
As shown in Figure 44 and Figure 45, it includes cylinder 6, clamping block 65, shrapnel 66 to stretch into fastening piece type sleeve outside, and the both ends of cylinder 6 are equal The blocked hole 651 for 65 grafting of clamping block is offered, injected hole 62 is offered on cylinder 6.The outside of shrapnel 66 one end and cylinder 6 Face is mutually fixedly connected, and one end that the other end and the clamping block 65 of shrapnel 66 are located on the outside of cylinder 6 is mutually fixedly connected.
11 one end of connection reinforcing bar is fixedly connected with enlarged footing 110, and the radial dimension of enlarged footing 110 is more than connection reinforcing bar 11 Radial dimension, enlarged footing 110 can be inserted into from the port of cylinder 6 inside cylinder 6.In insertion process, enlarged footing 110 pushes clamping block Flexible deformation occurs for 65 band spring plates 66 when being moved towards the direction far from cylinder 6 central axis, and clamping block is crossed in enlarged footing 110 After 65, shrapnel 66 gradually restores deformation and is inserted into the reset of cylinder 6, and limitation enlarged footing 110 extracts cylinder 6.
When post-cast strip casting concrete around cylinder 6, cement mortar can be flowed into from the two-port and injected hole 62 of cylinder 6 Inside cylinder 6, solid concrete is formed after cement slurry sets, connection reinforcing bar 11 is made to be fixed on inside cylinder 6, to realize two Root connects the connection of reinforcing bar 11.
In addition it should be pointed out that 4 sleeve correlations that the applicant submitted on April 8th, 2018 may be used in sleeve Patent of invention, application number is respectively 201810306670.4,201810307419.X, 201810307420.2 and 201810307967.2。
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this It is all protected by Patent Law in the right of invention.

Claims (32)

1. a kind of prefabricated panel, it is characterised in that:Including wallboard module(1), wallboard module(1)The pre-buried connection in upper and lower end face Reinforcing bar(11), connect reinforcing bar(11)Stretch out wallboard module(1)End fix enlarged footing(110), enlarged footing(110)Size it is big In connection reinforcing bar(11)Outer diameter.
2. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Include that several are vertically arranged Reinforcement constructional column(12).
3. prefabricated panel according to claim 2, it is characterised in that:Reinforce constructional column(12)Including vertical stiffener cage (121), vertical stiffener cage(121)Including more vertical strengthening ribs(122)With by more vertical strengthening ribs(122)Periphery Bind round the first stirrup set(123).
4. prefabricated panel according to claim 3, it is characterised in that:Vertical strengthening ribs(122)Elongated setting, both ends are stretched out Wallboard module(1)Upper and lower end face, be provided at both ends with enlarged footing(110).
5. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Include several horizontal directions The reinforcement of setting constructs beam(16), reinforce construction beam(16)Including horizontal stiffener cage(160), horizontal stiffener cage (160)Including more horizontal stiffeners(161)With by more horizontal stiffeners(161)Periphery bind round the second stirrup for setting(162).
6. prefabricated panel according to claim 1, it is characterised in that:Reinforce construction beam(16)It is set to wallboard module(1) Top or bottom;Second stirrup(162)A part be embedded in wallboard module(1)In, a part exposes wallboard module(1).
7. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Centre is vertically provided with several flat Capable hollow hole(13).
8. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)In be provided in wall thickness direction it is double Layer deformed bar or prestress wire.
9. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Side end face be embedded with dowel (14), dowel(14)A part be embedded in wallboard module(1)Interior, a part is exposed.
10. prefabricated panel according to claim 9, it is characterised in that:Dowel(14)Expose wallboard module(1)End It is provided with enlarged footing(110).
11. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Side end face be embedded with U-shaped steel Muscle(15), U-shaped reinforcing bar(15)Open end be embedded to wallboard module(1)It is interior.
12. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Upper reserved window opening(211)And/or Door opening(212).
13. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)In in window opening(211)And/or door Hole(212)Upper end setting reinforce construction beam(16), window opening(211)And/or door opening(212)Constructional column is reinforced in both sides setting (12).
14. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Inside it is provided with framework of steel reinforcement.
15. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)Surface be integrally connected with it is additional Layer structure(18), the additional layer structure(18)Including decorative layer(181)And/or insulating layer(182)And/or fireprotection layer(183) And/or puigging(184).
16. prefabricated panel according to claim 15, it is characterised in that:The additional layer structure(18)In be provided with it is pre-buried Pipeline.
17. prefabricated panel according to claim 1, it is characterised in that:Wallboard module(1)It is upper to be used to install the pre-buried of connection Iron plate and/or pre-buried angle bar(172)And/or bolt collar(173).
18. a kind of connection structure of prefabricated panel, it is characterised in that:Including claim 1-14 any one of them dry walls Plate, prefabricated panel adjacent in the horizontal direction are spliced to form mutually "-" type, T fonts, L-type or cross, prefabricated panel Link position at form vertical post-cast strip(22).
19. the connection structure of prefabricated panel according to claim 18, it is characterised in that:Adjacent two pieces of prefabricated panel sides The dowel of face setting(14)With U-shaped reinforcing bar(15)It is connected with each other.
20. the connection structure of prefabricated panel according to claim 18, it is characterised in that:Vertical post-cast strip(22)Middle setting There are more vertical elongated reinforcing bars(221), and by more vertical elongated reinforcing bars(221)Bind round the third stirrup set in periphery(222).
21. the connection structure of prefabricated panel according to claim 18, it is characterised in that:Adjacent prefabricated panel is spelled mutually It connects to form "-" type, in vertical post-cast strip(22)Side be provided with steel column(23).
22. the connection structure of prefabricated panel according to claim 21, it is characterised in that:Steel column(23)Side be connected with Peg(231), peg(231)It is embedded in vertical post-cast strip(22)In.
23. a kind of connection structure of prefabricated panel, it is characterised in that:Including claim 1-14 any one of them dry walls Plate, in the vertical direction adjacent prefabricated panel splice mutually, the junction of prefabricated panel forms horizontal post-cast strip(24);Two The connection reinforcing bar of prefabricated panel(11)Using sleeve(3)Connection, sleeve(3)On open up two with connect reinforcing bar(11)Outer diameter matches Mounting hole(31).
24. the connection structure of prefabricated panel according to claim 23, it is characterised in that:It is provided in prefabricated panel vertical Hollow hole(13), hollow hole(13)Interior casting concrete and horizontal post-cast strip(24)It connects integral.
25. the connection structure of prefabricated panel according to claim 23, it is characterised in that:Hollow hole(13)Interior vertical direction Shearing resistance muscle is set(25), shearing resistance muscle(25)One end is stretched into lower layer's prefabricated panel, and the other end stretches into the prefabricated panel of upper layer.
26. the connection structure of prefabricated panel according to claim 23, it is characterised in that:Horizontal post-cast strip(24)Top Or lower section is provided with reinforcing beam(6), reinforcing beam(6)Concrete and horizontal post-cast strip(24)Concrete pour together.
27. the connection structure of the prefabricated panel according to claim 23-26 any one, it is characterised in that:It is poured after level Band(24)Both sides be provided with precast floor slab(4), horizontal post-cast strip(24)By the pre- of upper and lower two pieces of prefabricated panels and the left and right sides Floor processed(4)It connects integral.
28. the connection structure of prefabricated panel according to claim 27, it is characterised in that:Horizontal post-cast strip(24)Width Less than the thickness of prefabricated panel, precast floor slab(4)It is overlapped on the upper surface of prefabricated panel.
29. the connection structure of prefabricated panel according to claim 27, it is characterised in that:Horizontal post-cast strip(24)Width More than the thickness of prefabricated panel, precast floor slab(4)Positioning is supported using the support column for being set to its bottom.
30. the connection structure of prefabricated panel according to claim 27, it is characterised in that:Precast floor slab(4)Close to horizontal Post-cast strip(24)End face be embedded with expand head dowel(41), expand head dowel(41)Use sleeve(3)Connection.
31. a kind of construction method of precast wall body, it is characterised in that:Include the following steps:
S1, installation lower layer prefabricated panel, and it is fixed;
Supporting apparatus support positioning is used in combination in S2, installation upper layer prefabricated panel, makes to reserve water outlet between levels prefabricated panel Flat post-cast strip(24)Space;
S3, the connection reinforcing bar by levels prefabricated panel(11)Use sleeve(3)Connection;
S4, horizontal post-cast strip is poured(24)Concrete, and cement grout is made to flow into sleeve(3)It is interior.
32. the construction method of precast wall body according to claim 31, it is characterised in that:
Further include step S1-1:In horizontal post-cast strip(24)Both sides install precast floor slab(4), precast floor slab(4)It is overlapped on pre- The upper surface of wallboard processed is positioned temporarily with base support means;By precast floor slab(4)Expansion head dowel(41)With set Cylinder(3)Connection.
CN201810381324.2A 2018-04-25 2018-04-25 A kind of prefabricated panel and its connection structure and its construction method CN108612254A (en)

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WO2019206193A1 (en) * 2018-04-25 2019-10-31 Li Cangzhu Prefabricated wall panel, connection structure thereof and construction method therefor
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CN111002463A (en) * 2019-08-30 2020-04-14 中国二十冶集团有限公司 Anti-cracking treatment method for prefabricated door type wallboard
CN111206715A (en) * 2020-04-23 2020-05-29 中国船舶重工集团国际工程有限公司 Prestressed hoop constraint high-expansion concrete wallboard, shear wall and construction method

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CN111206715B (en) * 2020-04-23 2020-07-10 中国船舶重工集团国际工程有限公司 Prestressed hoop constraint high-expansion concrete wallboard, shear wall and construction method

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