CN206090996U

CN206090996U - Connected node of whole thick precast floor plank unit of assembled and floor unit thereof

Info

Publication number: CN206090996U
Application number: CN201621114205.3U
Authority: CN
Inventors: 刘祥锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-07-15
Filing date: 2016-10-11
Publication date: 2017-04-12
Anticipated expiration: 2026-10-11

Abstract

The utility model discloses a whole thick precast floor plank's of assembled connected node, reserve connecting reinforcement in the node on the connection face of precast floor plank unit, connecting reinforcement's the part that exposes is " C " shape, should expose the part and be connected the face constitutes closed polygon, in the connected node of precast floor plank unit and roof beam or wall, the connecting reinforcement of precast floor plank unit alternates together in the junction with the reinforcing bar of roof beam or wall configuration, cross section from whole connected node, connecting reinforcement and single individual closed stirrup of the bar formation of roof beam or wall configuration or composite stirrup, list closed stirrup or composite stirrup in dog -ear department vertical bolt reinforcing bar penetrates. The utility model discloses a connected node of whole thick precast floor plank unit can realize precast floor plank connected node and cast in situ concrete structure congruency ability when realizing higher prefabricated rate and assembly rate. The utility model also provides a whole thick precast floor plank unit for realizing foretell connected node.

Description

The connecting node and its floor panels of the whole thick precast floor slab unit of assembled

Technical field

This utility model is related to prefabricated assembled concrete structure construction, more particularly to the connection section of prefabricated floor Point and its floor panels.

Background technology

Because assembled architecture meets the mode of production of environmental protection and energy saving, country proposes the time with 10 years or so, makes dress The ratio for accounting for new building with formula building reaches 30% developing goal, the dispatch of the Department of Science and Technology《" green building and building industry The special 2016 annual project application guide of change " emphasis is specifically notified》Mention subject study content (taking passages related content)：Research Prefabricated concrete structure novel connection node and its basic structure performance, study the work of 8 degree of area's concrete assembling structure systems Industry adaptability problem, proposes new series connecting node form, reaches and is required with cast-in-place structural equal performance.

Prefabricated floor refers to that floor is resolved into into member unit is prefabricated in the factory production, scene to prefabricated components dress With, again prefabricated components are connected into by monolithic architecture structure by cast-in-place concrete.The globality of this floor preferably, can save mould Plate, accelerates speed of application.There is the version of following several prefabricated concrete floors at present：

(1) using prefabricated superposed type floor construction form：By prefabricated superposed type floor panels install it is in place after, it is then cast-in-place One layer of reinforced concrete sandwich layer, by post, beam and floor an entirety is linked to be.Though this assembly method good integrity can meet Antiseismic building is required, but precast floor slab is that semi-finished product, strengthening floor slab rigidity are low, to add construction temporary support, live reinforcing bar colligation Amount is more, concreting amount is big, and the overall prefabrication rate of precast floor slab unit is extremely difficult to 60%, can only achieve existing country 《Industrialized building evaluation criterion GB/T51129-2015》Specified in prefabricated rate minimum standardss, with real industrialized production Also gap, does not bring into play and assembles convenience, economy and the feature of environmental protection of building process of construction；

(2) using precast floor slab unit structural form：Precast floor slab unit common at present includes prefabricated solid floor list Unit, prefabricated hollow floor unit, precast rib composite floor plate unit etc..The precast floor slab configures steel all in accordance with bearing requirements Muscle, and in the precast floor slab surrounding as the connection reinforcing bar for remaining for connecting node on joint face in advance.These connection reinforcing bars The reinforcing bar that usually precast floor slab is configured directly reserves the linear reinforcing bar formed outside joint face, and during assembling, being will be pre- The edge of floor panels processed rides on support and arranges template or rides on beam or wall edge, forms connecting node space.It is described Precast floor slab unit joint face on connection reinforcing bar and the prefabricated components being connected connection reinforcing bar in connecting node space It is crisscross together, then again match somebody with somebody longitudinal reinforcement, by cast-in-place concrete, that is, respectively constitute the precast floor slab unit with it is adjacent Precast floor slab unit or beam or wall connecting node, realize the integration of floor, this precast floor slab although integral prefabricated rate Height, but because the connecting node of precast floor slab unit uses the framework of steel reinforcement that common reinforcement manner is constituted, not specially Arrange and limit the structure that connection reinforcing bar is mutually shifted, and connecting node is the important position of structural system, is caused this kind of prefabricated The structure that floor is formed cannot very well accomplish the Seismic Design Requirements for meeting " strong node, weak component ", cause precast floor slab list The application of unit is restricted.

Additionally, current precast floor slab unit connecting node technology should in mixed structure, frame structure and shear wall structure With more, but using common (non-prestressed) connecting node assembling plate-column structure application there is not yet report.This is because plate Rod structure is complicated in plate and post junction stress, and the shearing of moment of flexure maximum, floor and post junction at its slab strips on columns is maximum, And the thickness of its floor (relative to contignation) is less, cause that the effective depth by curved section is less, the ratio of reinforcement is higher, post with It is also little that the anti-impact of plate junction cuts face, and many technologies need to solve.Post and plate junction are that whole plate-column structure is most important Position and it is connected by slab strips on columns structure, slab strips on columns bar connecting must reach I, II level connection request, And the connection that must stagger, with more technological difficulties.Current assemble type concrete slab rod structure form has employing to originate from previous generation " the integrated prestress assembled plate-column structure " of the prestressing force friction node of Yugoslavia " IMS " the system eighties of recording, i.e. floor By the stiction supporting and fixing of prestressing force and its generation on post, prestressing force friction node form is formed between plate and post. In this form, the compressive stress of frictional force from live post-stretching prestress wire, the particular/special requirement connected because of it, The construction technology of the prestress wire tensioning is loaded down with trivial details, difficulty is big, very high to the technical requirements of workmen；Additionally, node The prestressing force purpose of tensioning be in order to connect needs, and additional stress is generated to the component of original assembling, both to have increased design difficult Degree has influence on construction costs again；When also adopting " IMS " system, prestressing force friction node not only needs to meet armored concrete knot The relevant regulation of structure, also needs to meet《Integrated prestress assembled plate-column structure technical regulation CECS52：2010》Requirement, it is only For association criterion code, rather than national standard, from another point of view side light should " IMS " system method of attachment there are some and ask Topic at least illustrates it is not perfect version, is not over the national enforcement technology approved；In application because scene Difficulty of construction is big-and do not apply to that industrialized construction, cost are high, perform typical problem and be subject to resistance, cause twenty or thirty year to be gone over Application it is few.

Utility model content

First purpose of the present utility model is to provide a kind of connecting node suitable for whole thick precast floor slab unit, its While the higher prefabricated rate of realization and assembly rate, can realize that precast floor slab connecting node is equal with cast-in-place concrete structure Performance.

Second purpose of the present utility model is to provide a kind of whole thick prefabricated building for realizing above-mentioned connecting node Slab element.

" whole thick precast floor slab unit " as herein described is a kind of precast floor slab unit made in plant produced, under its plate Surface and plate upper surface be exactly hardened structure finished surface, the thickness of precast floor slab unit be exactly floor after the completion of assembling structure it is thick Degree；It is another kind of precast floor slab for being different from overlapping precast floor slab.Herein (as overlapped in addition to the proprietary varieties precoated plate for indicating Precast floor slab), remaining " precast floor slab unit " is all referring to the writing a Chinese character in simplified form of " whole thick precast floor slab unit ", remaining " precast floor slab " All referring to writing a Chinese character in simplified form for " whole thick precast floor slab ".

To reach above-mentioned utility model purpose, the technical solution adopted in the utility model is as follows：

A kind of connecting node of the whole thick precast floor slab of assembled, including on the joint face and joint face of precast floor slab unit it is pre- The reinforcing bar of the joint face and beam or wall configuration of the connection reinforcing bar, beam or the wall that stay, and in beam support or wall bearing and precast floor slab It is that the junction of unit pours, precast floor slab unit and beam or wall are connected as overall cast-in-place concrete and the node of routine connects Connect arrangement of reinforcement, it is characterised in that：Connection reinforcing bar is reserved on the joint face, the exposed parts of described connection reinforcing bar are in " Contraband " shape, I.e. described exposed parts are bent into three sections：Upper crosspiece, lower crosspiece and one connect the upper crosspiece outer end and lower crosspiece outer end End connects wherein one crosspiece for tension of section, the upper crosspiece and lower crosspiece, and the length of the crosspiece of the tension is more than or waits In the length of another crosspiece；Described exposed parts constitute the polygon of closure with described joint face, in precast floor slab list In the connecting node of unit and beam or wall, the reinforcing bar that the connection reinforcing bar of described precast floor slab unit is configured with described beam or wall exists Junction is interspersed together, from the point of view of the cross section of whole connecting node, the reinforcing bar that the connection reinforcing bar is configured with the beam or wall Constitute single closed stirrups or compound stirrup, longitudinal latch steel is penetrated at knuckle in described single closed stirrups or compound stirrup Muscle.Connecting node after the completion of pouring is that the concrete with beam form arrangement of reinforcement that precast floor slab is formed with beam support or wall bearing is tied The dark beam of structure or beam, precast floor slab is equivalent to be bearing on the dark beam of the wide flat of connection or beam, and beam is directly supported at bearing, this One connecting joint structure power transmission is direct, simple structure.

A kind of connecting node of the whole thick precast floor slab of assembled, including on the joint face and joint face of precast floor slab unit it is pre- The connection reinforcing bar for staying, and pour at the plate gap of two pieces of precast floor slab units, two pieces of precast floor slab units are linked as into entirety Cast-in-place concrete and routine node connection arrangement of reinforcement, it is characterised in that：Connection reinforcing bar, described company are reserved on the joint face The exposed parts of reinforcing bar are connect in " Contraband " shape, i.e., described exposed parts are bent into three sections：Upper crosspiece, lower crosspiece and a connection are described The end of upper crosspiece outer end and lower crosspiece outer end connects section, the upper crosspiece and the crosspiece that wherein of lower crosspiece is tension, described Length of the length of the crosspiece of tension more than or equal to another crosspiece；Described exposed parts are constituted with described joint face and closed The polygonal shape of conjunction, in the connecting node between two pieces of precast floor slab units, two pieces of precast floor slab unit phases The connection reinforcing bar reserved on adjacent joint face intermeshes at plate gap, from the point of view of the cross section of whole connecting node, two pieces of institutes The connection reinforcing bar of the precast floor slab unit stated constitutes compound stirrup, and longitudinal latch steel is penetrated in the interior knuckle of the compound stirrup Muscle.Its connecting node after the completion of pouring is combined into one with multiple equivalent to two precast floor slab element sides ribs or edge member The wide flat rib or dark beam of hoop are closed, final really connecting node becomes the rib inside a monoblock floor or internal dark beam.

In one embodiment, in the described precast floor slab unit of described lower crosspiece part or full section embedment.

The connecting node of the whole thick precast floor slab of the above-mentioned assembled of this utility model includes two kinds, and one kind is precast floor slab unit With beam or the connecting node of wall, another kind is the connecting node between two pieces of adjacent precast floor slab units.

This utility model in the connecting node of precast floor slab unit and beam or wall, described beam support or wall bearing with it is pre- The junction of floor panels processed refers to the company constituted between the joint face of beam support face or wall seating plane and precast floor slab unit Connect for the space of rear pouring concrete；" plate gap " described in connecting node of this utility model between precast floor slab unit be Refer to the connection space reserved between the adjacent joint face of precast floor slab unit；The width of node point connection and the width of plate gap are equal It is determined according to specific design requirement, it is desirable to which the width of the concrete for pouring is not less than 200mm.

Described joint face requires to be matsurface, and requires the area of matsurface not less than the 80% of faying face.

Connection reinforcing bar described in the utility model, is more than interconnection function, when it is connected with bearing in node is implemented It has been anchorage effect.

In one embodiment, connection reinforcing bar described in the utility model stretches out closo connection reinforcing bar, institute for plate face State plate face and stretch out closo connection reinforcing bar and directly formed by the bending of the precast floor slab unit original plate face reinforcing bar；Described plate The first paragraph that face reinforcing bar stretches out is upper crosspiece, and described upper crosspiece is bent to described end and connects after specific length is reached under Section, described end connects section bending is returned again to after specific length is reached and anchors into joint face bottom, constitutes described lower crosspiece, described The part that lower crosspiece is anchored in precast floor slab unit is folded upward at again in the side rib or edge member of the precast floor slab unit, And anchor into part formation closed stirrups form with upper crosspiece；Plate face described in whole is stretched out closo and connects reinforcing bar in same plane It is interior.

In second embodiment, connection reinforcing bar described in the utility model goes out closo connection reinforcing bar for plate end stretch, The plate end stretch goes out closo connection reinforcing bar and is directly formed by the original reinforcement bending of the precast floor slab unit；Described The first paragraph that reinforcement stretches out is described lower crosspiece, and described lower crosspiece reaches upward direction after specific length and is bent to institute The end stated connects section, and the end connects section bending is returned again to after specific length is reached and anchors into joint face top, constitutes described upper horizontal stroke Section, the upper crosspiece straight line is anchored in precast floor slab unit or the side rib in the precast floor slab unit or edge member inner bending Stirrup shape is closed into lower crosspiece；Plate end stretch described in whole goes out closo connection reinforcing bar in the same plane.

In the third embodiment, connection reinforcing bar described in the utility model is additional connection stirrup, and described is additional Connection stirrup is the connection reinforcing bar of other increased stirrup shape, and its at least individual limb is embedded in side rib or edge in precast floor slab In component, exposed parts are " Contraband " shape；Described stirrup can be rectangle, trapezoidal or polygon, and described lower crosspiece is all buried In entering described precast floor slab unit.

Plate bottom straight line connection reinforcing bar, described plate bottom straight line connection are also stretched out on the joint face of described precast floor slab unit Reinforcing bar is directly to be stretched out by the original reinforcement of precast floor slab unit or side rib bottom reinforcing bar, and revealed section is linear.

Longitudinal latch reinforcing bar described in the utility model refers to the longitudinal steel being inserted in connection reinforcing bar in knuckle of rear colligation Muscle, it can effectively limit being mutually shifted for connection reinforcing bar.

The connecting node of the whole thick precast floor slab of this utility model above two assembled is connected by changing precast floor slab unit The shape of reinforcing bar is connect, so as to it forms transverse projection in the connecting node with the connection reinforcing bar of another component being connected be Closing ring tendon shape, with reference to longitudinal latch reinforcing bar the coagulation of multiple mutually perpendicular crosses or T word space configurations is cooperatively constituted The framework of steel reinforcement of soil, under the collective effect of concrete, can be more effectively prevented from connected reinforcing bar relative movement, connect Node has been actually formed a dark beam of xoncrete structure or beam with beam form arrangement of reinforcement after the completion of pouring, it can greatly strengthen The intensity of connecting node so as to can effectively bear load and effect from all directions, its bearing capacity exceedes pre- Floor panels body processed, so as to meet the Seismic Design Requirements of " strong node, weak structure ", and can make precast floor slab unit form week The affixed one-way slabss in side or two-way slab structural system.

Described additional connection stirrup is that member stress needs or in order to further strengthen the structural strength of connecting node Configuration；As stress needs its quantity and the concrete position for arranging as the case may be to calculate determination, with the totality of connecting node Structure stress meets pertinent regulations and requires to be defined；For example, the assembly node of flat slab structure, it is locally near pillar support Additional connection stirrup is set up in place, and calculating by slab strips on columns shear strength in anchor needs its quantity and concrete configuration length range. When configuring such as in order to further strengthen the structural strength of connecting node, the setting of additional connection stirrup is mainly according to component weight The property wanted and arrange, make concrete structured beam that connecting node formed or the intensity of the dark beam of xoncrete structure be further enhanced.

Above-mentioned " edge member ", refer at prefabricated solid slab cell edges arrange, with one fixed width formations Point, it is configured with up and down respectively no less than the straight-through reinforcing bar of a parallel edge, is exactly the margin plate band of solid Slab element.This practicality One or more joint faces of new precast floor slab unit can adopt the joint face of step, i.e., along vertical plane shape joint face The length direction of lower edge crosses out one block of step wing plate.If provided, with step wing plate, then edge member includes the step wing plate Part.

Connection reinforcing steel bars exposed part described in the utility model is bent into three sections in for connection reinforcing bar, upper crosspiece therein with The length that the length that lower crosspiece stretches out can be stretched out with equal or unequal, tension when unequal reinforcing bar crosspiece will be grown, upper horizontal stroke Section is stretched out with lower crosspiece can be with parallel also not parallel, and the end connection section of outer end connects upper crosspiece and lower crosspiece, three sections of reinforcing bars simultaneously In the same plane.The length that described upper crosspiece stretches out with lower crosspiece can be because that hardened structure is to receive with equal or unequal Curved component, its upper and lower reinforcing bar another for a tension is pressurized, and tension reinforcement needs anchorage length to need anchor than compressive reinforcement Gu length will be grown, and in order to more preferably can be unequal with length using this characteristic；Described upper crosspiece and lower crosspiece stretch out can be with It is parallel also can be not parallel, be because whether band step wing plate is affected reinforcing bar by the joint face of connected links, when the structure to be connected When part is the joint face with step wing plate, lower crosspiece is subject to step wing plate to stop needs upward stretching out；Upper crosspiece and lower crosspiece The different and lower crosspiece of length horizontally or obliquely, end connection section is and then changed, joint face have again vertical joint face with It is provided with the joint face of step wing plate, thus makes three sections of connection reinforcing steel bars exposed and the joint face constitutes rectangle, trapezoidal and polygon The shape of shape；Such as in order to construction in later period adopts band step joint face without supporting installation form in addition, lower crosspiece may Need it is upward go out so as to can reach carry out above step wing plate affixed connection, and in order to realize affixed connection, upper crosspiece stretches out length Degree will meet the length requirement of tension connection, and the length that lower crosspiece stretches out meets pressurized connection request, and such upper crosspiece is with Crosspiece may different length.The length that all can certainly need using tension, make the length phase that upper crosspiece stretches out with lower crosspiece Deng.

Connection reinforcing bar of the present utility model is according to national regulation《Code for design of concrete structures GB50010-2010》And state Family's industry standard《Technical specification for concrete structures of high-rise building JGJ3-2010》Requirement, end even section bending more than or equal to 90 ° Connection reinforcing bar is the affixed anchoring projected length with during tension, must meet anchoring projected length >=0.6L_abOr >=0.6L_aE, L_abFor The basic anchorage length (i.e. rectilinear anchorage length) of longitudinal tensile reinforcing bar, L_aEIt is (i.e. straight for tension reinforcement antidetonation anchorage length Linear anti-reinforcing bar shakes anchorage length)；When to be hinged or when reinforcing bar is pressurized, anchoring projected length >=0.4L must be met_abOr >= 0.4L_aE.As can be seen here, connection reinforcing bar of the present utility model is still hinged using " Contraband " shape is either affixed, and its anchorage length is equal It is reduced.

The connecting node of the whole thick precast floor slab of assembled of the present utility model can be applicable to plate-column structure.When being applied to sheet-pile When in structure, the wide-flat beam or dark that described cast-in-place concrete and the side rib of described precast floor slab unit or edge member is constituted The overall width of beam is more than or equal to the corresponding hem width degree of vertical structure post for supporting, and the company of the whole thick precast floor slab of whole assembled The arrangement of reinforcement for connecing node reaches the slab strips on columns distributed steel requirement of sheet-pile.

Specifically, the prefabricated edges of boards rib of connecting node or the bottom longitudinal reinforcement and rear pouring concrete of edge member are constituted The bottom reinforcement bars of the latch reinforcing bar at plate gap should meet the Maximum bending moment of opposing slab strips on columns, and the plate face of node stretches out connection steel Muscle, plate end stretch go out to connect reinforcing bar and additional connection stirrup should be met the maximum shear stress requirement of opposing slab strips on columns and resist horizontal The stress that effect is produced is required.In plate-column structure, the science of the connecting node of the whole thick precast floor slab of this assembled is： (1) afterwards position is the less place of whole slab strips on columns stress at pouring concrete plate gap, the horizontal tensile stress of node at this Can use original plate negative reinforcement, i.e., the plate that plate face reinforcing bar is bent into stretch out plate face stretch out connection reinforcing bar or plate end stretch go out Connection reinforcing bar, just can meet requirement；(2) the maximum bottom reinforcement bars of stress moment of flexure can wholly or largely be prefabricated in the factory and match somebody with somebody Put and can adopt deformed bar so that reinforcement location accurately, can guarantee that effective depth that reinforcing bar acts on, also can be to pre- Stress reinforcing bar carries out accurate tensioning construction；(3) shearing maximum node can be attached by encrypting with post side junction Plus additional connection stirrup ensures that its is safe and reliable and span centre can rationally reduce connection stirrup, not only save but also safety；(4) node After connection, the plate on its both sides can see continuous integral slab as, and longitudinal direction and the post of node can also be realized affixed；(5) by closing Company at the same section of reinforcing bar is avoided using elongated reinforcing bar at the whole thick precast floor slab unit combination of reason or reserved rear pouring concrete Connect problem；(6) site operation is simple, and only a small amount of latch reinforcing bar of colligation and rear pouring concrete work.

The connecting node of the whole thick precast floor slab of described assembled is applied to connection precast floor slab unit common at present, only Want prefabricated four joint faces of floor and connection reinforcing bar is consistent with feature of the present utility model achieves that equal attachment structure, bag Include prefabricated solid floor unit, precast rib composite floor plate unit, prefabricated two-way rib-shaped structure floor panels, prefabricated unidirectional ribbed Structure floor unit, prefabricated ribbed (box-shaped) hollow-core construction floor panels, and the prestressing force precast floor slab of above-mentioned floor type. When precast floor slab unit is rib structure plate or cored slab structure, plate gap connecting node constitutes girder structure；When precast floor slab list When unit is solid slab structure, plate gap connecting node constitutes dark girder construction；The species change of plate is when precast rib composite floor plate list The packing material and lower floor's steel mesh crushed stone concrete layer of unit is cancelled, is exactly prefabricated two-way rib-shaped structure floor panels, works as precast The rib in a direction is cancelled and cancelled to the packing material and lower floor's steel mesh crushed stone concrete layer of rib composite floor plate unit, but retains Side rib joint face, is exactly prefabricated unidirectional rib-shaped structure floor panels, when precast rib composite floor plate unit packing material cancel, But when lower floor steel mesh crushed stone concrete floor retains or uses armored concrete thin layer instead, be exactly prefabricated ribbed (box-shaped) hollow-core construction building Slab element；When prefabricated unit plate is in plant produced, the lower rebar of plate is all or using precast floor slab during deformed bar It is exactly prestressing force precast floor slab.

It is interpreted as from another point of view：As long as the joint face of precast floor slab unit and its connection reinforcing bar are filled using this utility model Connecting node with the whole thick precast floor slab of formula requires production, and the inner structure form of plate is not limited by form.

The connecting node of the whole thick precast floor slab of this utility model assembled is applied to frame structure, mixed structure and shear wall The assembling of structure；Connecting node between precast floor slab unit applies also for the assembling of flat slab structure.In practical application, The particular number of connection reinforcing bar and longitudinal latch reinforcing bar in connecting node should be configured and designed according to actual demand.Example Such as, when the cast-in-place concrete of node point connection overlaps with Vierendeel girder or shear wall, its internal arrangement of reinforcement should meet Vierendeel girder or cut The force request of power wall.In flat slab structure, connecting node supports vertical structure post, now, whole connecting node simultaneously Arrangement of reinforcement need to reach the slab strips on columns distributed steel requirement of arch without beam.

Preferably, the plate bottom straight line connection reinforcing bar in the connection reinforcing bar of the precast floor slab unit, in the precast floor slab In connecting node between unit, the straight line bottom muscle reserved on adjacent joint face is taken at plate gap using colligation overlap joint, one side Connect welding or be mechanically connected；To reduce connecting length when using overlap joint welding or mechanical connection, prefabricated rate is improved.

The design and construction of two kinds of above-mentioned connecting nodes mainly comprises the following steps：

(1) require that the size, shape and arrangement of reinforcement to precast floor slab unit is carried out according to concrete architectural engineering and construction organization Calculate and design；

(2) additional bar of connecting node is designed and calculates, it is such as additional to connect stirrup and longitudinal latch reinforcing bar；

(3) design and calculate the concrete structured beam of connecting node or the width of the dark beam of xoncrete structure；

(4) precoated plate production and construction figure and assembled in situ figure are drawn in design；

(5) precast floor slab unit is produced, transported and is lifted；

(6) reinforcing bar in colligation, connecting node junction or plate gap, and according to design, related set aside pre-embedded structure is installed Part；

(7) the rear pouring concrete of connecting node is poured.

Second purpose of the present utility model is to provide a kind of whole thick precast floor slab for realizing above-mentioned connecting node Unit.

A kind of precast floor slab unit for realizing the connecting node of above-mentioned whole thick precast floor slab, it is with upper and lower two The flat cube prefabricated components of armored concrete of individual surface and four joint faces, are reserved with connection reinforcing bar on the joint face, It is characterized in that：The exposed parts of described connection reinforcing bar are in " Contraband " shape, i.e., described connection reinforcing steel bars exposed part is bent into three sections： Upper crosspiece, lower crosspiece and one connect the upper crosspiece outer end and the end of lower crosspiece outer end and connect section, the upper crosspiece and lower crosspiece Wherein one crosspiece for tension, the length of the length of the crosspiece of the tension more than or equal to another crosspiece；Described Exposed parts constitute the polygonal shape of closure with described joint face；Also have on joint face and stretch out plate bottom straight line connection reinforcing bar, Described plate bottom straight line connection reinforcing bar is directly to be stretched out by the original reinforcement of precast floor slab unit or side rib bottom reinforcing bar, is exposed Section is linear.

The precast floor slab unit has four joint faces, and its four faces type and reserved connection reinforcing bar can respectively not It is identical, also can part it is identical or all identical.

In one embodiment, connection reinforcing bar described in the utility model stretches out closo connection reinforcing bar, institute for plate face State plate face and stretch out closo connection reinforcing bar and directly formed by the bending of the precast floor slab unit original plate face reinforcing bar；Described plate The first paragraph that face reinforcing bar stretches out is upper crosspiece, and described upper crosspiece is bent to described end and connects after specific length is reached under Section, described end connects section bending is returned again to after specific length is reached and anchors into joint face bottom, constitutes described lower crosspiece, described The part that lower crosspiece is anchored in precast floor slab unit is folded upward at again in the side rib or edge member of the precast floor slab unit, And anchor into part formation closed stirrups form with upper crosspiece；Closo connection reinforcing bar described in whole is in the same plane.

In second embodiment, connection reinforcing bar described in the utility model goes out closo connection reinforcing bar for plate end stretch, The plate end stretch goes out closo connection reinforcing bar and is directly formed by the original reinforcement bending of the precast floor slab unit；Described The first paragraph that reinforcement stretches out is described lower crosspiece, and described lower crosspiece reaches upward direction after specific length and is bent to institute The end stated connects section, and the end connects section bending is returned again to after specific length is reached and anchors into joint face top, constitutes described upper horizontal stroke Section, the upper crosspiece straight line is anchored in precast floor slab unit or is closed into stirrup with lower crosspiece in side rib or edge member inner bending Shape；Closo connection reinforcing bar described in whole is in the same plane.

In the third embodiment, connection reinforcing bar described in the utility model is additional connection stirrup, and described is additional Connection stirrup is the connection reinforcing bar of other increased stirrup shape, and its at least one limb is embedded in the precast floor slab unit In side rib or edge member, exposed parts are " Contraband " shape；Described stirrup can be rectangle, trapezoidal or polygon, it is described under Crosspiece is wholly embedded in described precast floor slab unit.

The form of connection reinforcing bar can be wanted according to the concrete shape of precast floor slab unit joint face and connection anchorage length of steel bar Ask decision；Such as in order to construction in later period adopts band step joint face, lower crosspiece to need without supporting installation form in addition It is upward go out, can reach and carry out above step wing plate affixed connection, in order to realize affixed connection, upper crosspiece extension elongation Meet the length requirement of tension connection and length that lower crosspiece stretches out meets pressurized connection request, upper crosspiece can with lower crosspiece Can different length.

Described additional connection stirrup is that member stress needs or in order to further strengthen the structural strength of connecting node Configuration；As stress needs its quantity and the concrete position for arranging as the case may be to calculate determination, with the totality of connecting node Structure stress meets pertinent regulations and requires to be defined；For example, the floor prefabricated unit of the assembling of flat slab structure, it locally exists Additional connection stirrup is set up where pillar support, calculating by slab strips on columns shear strength in anchor needs its quantity and specifically match somebody with somebody Put extent length.When configuring such as in order to further strengthen the structural strength of connecting node, the setting of additional connection stirrup is main It is to be arranged according to Component Importance, obtain the concrete structured beam of connecting node formation or the intensity of the dark beam of xoncrete structure Further enhance.

Connection reinforcing bar described in utility model is according to national regulation《GB50010-2010》And national sector standard《JGJ3- 2010》Requirement, end even section bending more than or equal to 90 ° or oblique connection reinforcing bar anchoring projected length for affixed, steel During muscle tension, anchoring projected length >=0.6L must be met_abOr >=0.6L_aE, L_abFor the basic anchorage length of longitudinal tensile reinforcing bar (i.e. rectilinear anchorage length), L_aEFor tension reinforcement antidetonation anchorage length (i.e. linear antidetonation anchorage length)；When to be hinged Or reinforcing bar it is pressurized when, must meet anchoring projected length >=0.4L_abOr >=0.4L_aE., it can be seen that, connection steel of the present utility model Muscle is either affixed to be still hinged, and its anchorage length is reduced.The quantity of connection reinforcing bar described in the utility model and position Putting all should require to be designed according to national standard and concrete structure design, it is ensured that joints meet concrete engineering degree of safety will Ask.

Described precast floor slab unit is when in for slab column system, wherein constituting the side of the joint face of slab strips on columns Rib or edge member increase width, and configure corresponding longitudinal reinforcement.Side rib or edge member width are more than or equal to being connected thereto Post correspondence width dimensions half, the bottom reinforcement bars of the bottom longitudinal reinforcement and latch reinforcing bar of prefabricated edges of boards rib or edge member The Maximum bending moment of opposing slab strips on columns, the stirrup formula connection reinforcing bar of node and additional connection stirrup should be met and meet opposing The maximum shear stress of slab strips on columns requires and resists that the stress that transversely acting is produced is required.

Above-mentioned precast floor slab unit can also make following improvement：One or more joint faces of the precast floor slab unit One block of step wing plate is crossed out using the joint face of step, the i.e. length direction along vertical plane shape joint face lower edge.When When precast floor slab unit and beam support or wall bearing or another piece of precast floor slab unit do connecting node, the step wing plate can be with Beam support or wall bearing are abutted against, its step wing plate is concordant with beam support face or wall seating plane collectively form junction pour sky Between bottom surface；Or precast floor slab unit is connected step wing plate and abuts against with another piece of precast floor slab unit, the plate of groove type is constituted Gap casting space.Constructor directly can collectively form junction space to step wing plate is concordant with beam support face or wall seating plane Or the casting space casting concrete of the groove type connecting plate gap, and horizontal shuttering need not be separately installed, so as to effectively simplify Work progress, improves efficiency of construction.The thickness of the joint face step wing plate should be arranged in suitable scope：It is blocked up when its When, it is possible to the effective depth for connecting reinforcing bar effect and the direction on joint face can be affected；When it is excessively thin, then rigidity is relatively low, It is likely difficult to bear the weight of rear pouring concrete.In one preferred embodiment, the thickness of described joint face step exists In the range of 30～50mm.

Described precast floor slab unit can be at present common precast floor slab unit, such as prefabricated solid floor unit, prefabricated Close rib composite floor plate unit, prefabricated two-way rib-shaped structure floor panels, prefabricated unidirectional rib-shaped structure floor panels, prefabricated box-shaped are empty Core structure floor panels, and the prestressing force precast floor slab of above-mentioned floor type.When the filling of precast rib composite floor plate unit Material and lower floor's steel wire crushed stone concrete thin layer are cancelled, are exactly prefabricated two-way rib-shaped structure floor panels, when precast rib is combined The rib in a direction is cancelled and cancelled to the packing material and lower floor's steel wire crushed stone concrete thin layer of floor panels, but retains side rib Joint face, is exactly prefabricated unidirectional rib-shaped structure floor panels, when precast rib composite floor plate unit packing material cancel but under When layer steel wire crushed stone concrete thin layer retains or uses armored concrete thin layer instead, be exactly hollow (box-shaped the is hollow) structure of prefabricated ribbed Floor panels；, in plant produced, the lower rebar of plate is completely or partially using prefabricated during deformed bar for prefabricated unit plate Floor is just into prestressing force precast floor slab.

This utility model has the advantages that:

(1) realize that the whole thick precast floor slab of assembled has the node structure with cast-in-place concrete structure equal performance：This reality With a kind of novel connection node construction of the whole thick precast floor slab connection of assembled of new proposition, by connecting to precast floor slab unit Connection reinforcing bar at face is improved so that the arrangement of reinforcement of the connecting node of the whole thick precast floor slab of assembled arranges more science and conjunction Reason, building structure, the rear pouring concrete portion of its connecting node that precast floor slab of the present utility model is assembled with connecting joint structure Divide the post-cast strip equivalent to integral cast-in-situ xoncrete structure, connecting node is reached and cast-in-place concrete structure equal performance,

(2) node good integrity, anti-seismic performance is good：This utility model is capable of achieving arrangement of reinforcement in whole connecting node can be exceeded Not a node area, a really dark beam of xoncrete structure or beam with beam form arrangement of reinforcement after the completion of connecting node, and connecting node Rear pouring concrete intensity be not less than former connecting elements intensity, formed equivalent to cast-in-place concrete structure, it is its shearing resistance, resistance to compression, anti- Bearing capacity is drawn to be better than other sections of component, safety stock is high, accomplishes the Structural Design Requirement of " strong node, weak component ", shock resistance Can be good；

(3) suitability is wide, can be applicable in plate-column structure, and with current technology can not analogy reasonable structure and Jing Ji property：Connecting joint structure of the present utility model, not only can apply to framework, shear wall structure and mixed structure, can also answer Use plate-column structure, when plate-column structure is applied to, the transmission of the power of node structure is directly simple, construction it is simple-it is only a small amount of Live reinforcing bar and rear pouring concrete, the integrated prestress assembled plate-column structure for not having the prestressing force friction node of " IMS " system " side effect " additional stress that the complicated live compressor wire tensioning work of construction and connection prestressing force bring to structure； Additionally, in construction and design process, only deferring to the pertinent regulations of reinforced concrete structure, the complexity of design is reduced, Reduce the workload of designer.This utility model when using prestressing force precast floor slab, effectively relative can reduce thickness of slab Degree, amount of deflection is reduced, screed-coat can be saved again, workload and quantities is being saved simultaneously, moreover it is possible to further mitigates weight, simply Site operation can realize prestressed structure again, and so as to realize economy, these are all current technologies (including cast-in-place concrete sheet-pile Structure) cannot analogy.

(4) can make full use of the mechanical property of material, save building material and safe：Precoated plate of the present utility model Unit can adopt prestressed structure, i.e., produce prestressing force prefabricated unit plate using pre-tensioning system in factory, make tension stress control Precisely, prefabricated unit is made to obtain most reasonable disposition in terms of arrangement of reinforcement, and the overlapping precoated plate of prior art its deformed bar Draw that application can thickness of slab is relatively thin to be affected by restricting when precoated plate is produced；The floor that precast slab unit is put together can reach two-way The affixed structure in plate and four sides, this plate span centre bottom reinforcement bars make plate using the affixed version of presstressed reinforcing steel and edges of boards bearing This flexural member most ideal structure form, material property also maximum can be played, so as to reducing the thickness of floor to greatest extent, subtracting Light dead-weight, reduction amount of reinforcement；Deformed bar is that pre-tensioning system construction, reinforcing bar and concrete binding are firm, safer reliability；

(5) can realize easy construction, save time, efficiency high：Precast floor slab of the present utility model and its connection reinforcing bar are all in work Factory is prefabricated to complete, and live reinforcing work amount is little.Additionally, when the joint face of precast floor slab adopts the joint face of step, without the need for Shuttering supporting, is capable of achieving between precast floor slab and pouring concrete is disposably applied after precast floor slab and the connection of beam support or wall bearing Work is completed, and reduces cast-in-place concrete amount and wet trade amount, after the completion of floor construction face it is smooth and can reach requirement absolute altitude, Can be carried out fine fitment work without screed-coat, with construction link is few, convenient, speed soon, efficiency high；

(6) prefabricated rate and assembly rate are high：The prefabricated rate of precast floor slab unit described in the utility model is high, the prefabricated rate of floor member More than 80%, can reach《GB/T51129-2015》The highest standard of the prefabricated rate of floor of requirement；

(7) reserve being arranged on the basis of reduction connecting length for connection reinforcing bar and there is convenience and motility：This practicality New connection reinforcing bar is either affixed to be still hinged, and its anchorage length is reduced, saves assembly space, another additional connection Reinforcing bar can be in the motility configuration as needed of any joint face；

(8) with good economy and generalization：Because there is this utility model connecting node mentioned above can fill Point using material mechanical property, save building material, easy construction, save time, efficiency high, so as to have fine economic benefit； Prefabricated rate and assembly rate height, site operation are simply easy to industrialized production；Range of application is general wide with by property and with economy Property, it is safe and reliable, could can be acceptable to the market and then could have promote probability.

Description of the drawings

Below in conjunction with Figure of description and specific embodiment, this utility model is further described.

Fig. 1 is the top view of the precast floor slab unit of this utility model embodiment 1；

Fig. 2 is the perspective diagram of the precast floor slab unit of this utility model embodiment 1；

Fig. 3 (a) is the A-A profiles of Fig. 1, (b) the form schematic diagram of the connection reinforcing bar stretched out for (a) plate；

Fig. 4 (a) is the B-B profiles of Fig. 1, (b) stretches out the form signal that plate face stretches out closo connection reinforcing bar for (a) plate Figure；

Fig. 5 (a) is the C-C profiles of Fig. 1, (b) the form schematic diagram of the connection reinforcing bar stretched out for (a) plate；

Fig. 6 (a) is the D-D profiles of Fig. 1, (b) stretches out the form signal that plate face stretches out closo connection reinforcing bar for (a) plate Figure；

Fig. 7 is the top view of the prefabricated solid Slab element of this utility model embodiment 2；

Fig. 8 is the perspective view of the prefabricated solid Slab element of this utility model embodiment 2；

Fig. 9 is the E-E profiles of Fig. 7；

Figure 10 is the F-F profiles of Fig. 7；

Figure 11 is the assembling schematic diagram of the whole thick precast floor slab of this utility model embodiment 3；

Figure 12 is the profile of Figure 11 connecting nodes 1A

Figure 13 is the exploded view of Figure 12；

Figure 14 is the profile of Figure 11 connecting nodes 1B；

Figure 15 is the exploded view of Figure 14；

Figure 16 is the perspective view of Figure 11 connecting nodes 1C and 1D；

Figure 17 is the profile of Figure 11 connecting nodes 1C；

Figure 18 is the exploded view of Figure 17；

Figure 19 is the profile of Figure 11 connecting nodes 1D；

Figure 20 is the exploded view of Figure 19；

Figure 21 is the perspective view of Figure 11 connecting nodes 2A and 2B；

Figure 22 is the profile of Figure 11 connecting nodes 2A；

Figure 23 (a) is the exploded view of Figure 22, is (b) the form schematic diagram of transverse steel in (a)；

Figure 24 is the profile of Figure 11 connecting nodes 2B；

Figure 25 (a) is the exploded view of Figure 24, is (b) the form schematic diagram of transverse steel in (a)；

Figure 26 is the perspective view of node 2C and 2D

Figure 27 is the profile of Figure 11 connecting nodes 2C；

Figure 28 is the exploded view of Figure 27；

Figure 29 is the profile of Figure 11 connecting nodes 2D；

Figure 30 is the exploded view of Figure 29；

Figure 31 is 2B connecting node profiles when the prefabricated solid Slab element of embodiment 4 mutually splices；

Figure 32 (a) is the exploded view of Figure 31, is (b) structural representation of transverse steel in (a)；

Figure 33 (a) is the profile of connecting node 2B of embodiment 5, is (b) structural representation of transverse steel in (a)；

Figure 34 (a) is A-A profile of the prefabricated hollow floor top view with the precast floor slab unit of Fig. 1, (b) is (a) plate The form schematic diagram of the connection reinforcing bar for stretching out；

Figure 35 (a) is C-C profile of the prefabricated two-way rib floor top view with the precast floor slab unit of Fig. 1, (b) is (a) The form schematic diagram of the connection reinforcing bar that plate stretches out.

Reference：1- posts；Lightweight filler in 2- composite plates；3- beams；The prefabricated solid Slab elements of 4-；5- precast hollows The cavity of floor；6- carries wall；Ribs of slab of the 7- with ribbed precast floor slab；8- connects reinforcing bar；10- precast floor slabs bottom arrangement of reinforcement；11- Additional connection stirrup；12- longitudinal directions latch reinforcing bar；14- step wing plates；15- band ribbed precast floor slab bottom wire mesh concrete is thin Layer；16-- slab strips on columns bottom reinforcement barses；17- joint faces；18- cast-in-place concretes；L- cast-in-place concrete width；L_a1- plate face reinforcing bar Bearing anchorage length when being hinged, L_a2Bearing anchorage length when-plate face reinforcing bar is affixed, L_a3- precast floor slab unit lower rebar Bearing anchorage length, L_a4The connecting length of-precast floor slab unit lower rebar；L_bThe rib width of-ribbed plate, L_b1- ribbed plate Side rib width prefabricated；H- precast floor slab element thicknesses；h₁- joint face step thicknesses；b₁、b₂、b₃、b₄- precast rib composite plate； The wide-flat beam or the overall width of dark beam of the side rib or edge member composition of B1- cast-in-place concretes and described precast floor slab unit.

Specific embodiment

Embodiment 1- precast rib is combined Slab element

Preferably：Precast rib composite floor plate unit has four joint faces, in order to more preferably illustrate to understand joint face its connection Depending on face form is according to connecting object and requirement, illustrated with four different embodiments of joint face.

Fig. 1～6 are a kind of structure of the compound Slab element of precast rib of the present utility model.

As shown in figs. 1 to 6, illustrated on the basis of the direction orientation of Fig. 1, the compound Slab element of the precast rib be with The flat rectangular body prefabricated components of upper and lower two surfaces and four joint faces, it is internal with some vertical and horizontal arrangement The rib of slab 7 with ribbed precast floor slab, at every rib of slab configure two rib lower rebars and stretch out joint face, be in line shape Precast floor slab bottom arrangement of reinforcement 10 with ribbed, and a rib upper reinforcement for stretching out joint face；Space between rib of slab is provided with multiple Lightweight filler 2 in plywood.Four joint faces of the compound Slab element of the precast rib are all matsurface, and the face of its matsurface Product is not less than the 80% of faying face.

Plate face is reserved with four joint faces of the compound Slab element of precast rib stretch out company of the exposed parts in " Contraband " shape Reinforcing bar 8 and precast floor slab bottom arrangement of reinforcement 10 are connect, but four sides are again different, and concrete condition is：The left side of plate is in order to connect side Wall bearing, be hinged support connection, plate face stretch out closo connection parallel with the lower crosspiece plate face of reinforcing steel bars exposed part upper crosspiece, from It is shorter that vertical joint face 17 stretches out revealed section, and even section is vertical connection upper crosspiece and lower crosspiece at end, and plate face stretches out closo company The exposed parts and joint face for connecing reinforcing bar form tetragon (such as Fig. 3 and Fig. 4 left ends).The right of plate is in order to be applied to plate-column structure Slab strips on columns connection, the connection reinforcing bar of configuration has plate face to stretch out closo connection reinforcing bar and additional connection stirrup 11, wherein attached Plus connection stirrup 11 be configured in the lower semisection of the joint face, i.e. near the part of support column, its left side anchors into more than half to be widened Side rib, and with plate face stretch out closo be connected spacing of reinforcement arrange；Joint face 17 of the joint face with step wing plate 14, plate face The parallel plate face of exposed parts upper crosspiece, the lower crosspiece of closo connection reinforcing bar and additional connection stirrup 11 are stretched out from step wing plate 14 Outside upper angle is upward to stretch out, holds even section to be vertical connection upper crosspiece and lower crosspiece, and closo connects reinforcing steel bars exposed part and is connected Face forms closure pentagon, and set plus broadside rib, plus broadside rib and step wing plate 14 in be embedded with some slab strips on columns bottom reinforcement barses 16 (such as Fig. 3 and Fig. 4 right-hand members).The top of plate is two pieces of prefabricated unit splicing edges, joint face of the joint face with step wing plate 14 17, plate face stretches out the parallel plate face of exposed parts upper crosspiece, the lower crosspiece of closo connection reinforcing bar from the step surface of step wing plate 14 Between it is upward stretch out, hold even section to be vertical connection upper crosspiece and lower crosspiece, plate face stretches out the exposed parts that closo connects reinforcing bar With joint face formed closure be also pentagon (such as Fig. 5 and Fig. 6 right-hand members).Plate it is following in order to two boards are connected with beam simultaneously, And require to realize affixed, joint face 17 of the joint face with step wing plate 14, what plate face stretched out closo connection reinforcing bar exposes portion Point parallel plate face of upper crosspiece, lower crosspiece overhangs from the end of step wing plate 14 but not parallel plate face, in order to realize solid upper crosspiece root Lengthen according to needs, thus it is cross-section long under its upper crosspiece ratio, and even section connects upper crosspiece and lower crosspiece to incline to connect end, and plate face is stretched out The exposed parts of closo connection reinforcing bar form recessed hexagon with joint face (such as Fig. 5 and Fig. 6 left ends).

Joint face 17 of the step joint face of this close rib composite plate i.e. with step wing plate 14, i.e., along the joint face lower edge Length direction cross out a joint face step wing plate 14, the high h of the joint face step wing plate 14₁=35mm,

As shown in figures 4-6, it is curved with reinforcing bar by original plate on precast floor slab unit that plate face stretches out closo connection reinforcing bar Folding is formed.

The prefabricated solid Slab element of embodiment 2-

Fig. 7～10 are a kind of structure of prefabricated solid Slab element of the present utility model.

As shown in Fig. 7～10, the prefabricated solid Slab element is the flat length with upper and lower two surfaces and four joint faces Cube prefabricated components, it has edge member, component bottom muscle to be furnished with precast floor slab bottom arrangement of reinforcement 10 per side, and its four joint faces are all For matsurface, and the area of matsurface is not less than the 80% of faying face.

Connection reinforcing bar and precast floor slab bottom arrangement of reinforcement 10 are reserved with four joint faces of prefabricated solid Slab element；Four Again different concrete condition is on side：The left side of plate, in order to connect abutment wall bearing, is hinged support connection, closo connection reinforcing bar Upper crosspiece plate face parallel with lower crosspiece, to stretch out revealed section from vertical joint face 17 shorter, even section is the upper horizontal stroke of vertical connection at end Section and lower crosspiece, the exposed parts of closo connection reinforcing bar form tetragon with joint face (such as Fig. 9 left ends).The right of plate in order to The slab strips on columns connection of plate-column structure is applied to, it is in " Contraband " shape that the connection reinforcing bar of configuration there are reserve on joint face, exposed parts Connection reinforcing bar 8 and it is additional connection stirrup 11, wherein it is additional connection stirrup 11 be configured in the joint face lower semisection, i.e. near The part of platen, its left side anchors into the side rib widened, and the interval setting of connection reinforcing bar 8 stretched out with joint face more than half；Should Joint face 17 is vertical plane shape, connects the exposed parts upper crosspiece and lower crosspiece parallel-plate of reinforcing bar 8 and additional connection stirrup 11 Even section is vertical connection upper crosspiece and lower crosspiece for face, end；Closo connects reinforcing steel bars exposed section and forms rectangle with joint face, and arranges It widens edge member, widen in edge member and be embedded with some slab strips on columns bottom reinforcement barses 16 (such as Fig. 9 right-hand members).The top of plate is Two prefabricated unit splicings, joint face 17 of the joint face with step wing plate 14, is the center of an integral slab structure at this It is additional connection stirrup 11 without plate face reinforcing bar, its connection reinforcing bar, the additional connection parallel plate face of the exposed parts upper crosspiece of stirrup 11, Lower crosspiece is upward from the middle of the upper surface of step wing plate 14 to be stretched out, holds even section to be vertical connection upper crosspiece and lower crosspiece, additional company The exposed parts of box cupling muscle 11 form the pentagon (such as Figure 10 right-hand members) of closure with joint face.Plate it is following for two boards simultaneously It is connected with beam, and requires to realize affixed, joint face 17 of the joint face with step wing plate 14, connection of the exposed parts in " Contraband " shape The parallel plate face of exposed parts upper crosspiece of reinforcing bar 8, lower crosspiece overhang from the not parallel plate face in the end of step wing plate 14, solid in order to realize Upper crosspiece is lengthened as desired, thus cross-section long under cross-section ratio thereon, and even section connects upper crosspiece and lower crosspiece to incline to connect end, The exposed parts of connection reinforcing bar 8 form the recessed hexagon (such as Figure 10 left ends) of closure with joint face.

Joint face 17 of the step joint face of the whole thick precoated plate of the closely knit heart of sheet i.e. with step wing plate 14, i.e., along the connection The length direction of face lower edge crosses out step wing plate 14, the high h of the joint face step wing plate 14₁=35mm,

As shown in Fig. 9～10, connection reinforcing bar 8 of the exposed parts in " Contraband " shape is by original plate face on precast floor slab unit Negative reinforcement bending is formed.

Implement the species applicability statement of whole thick precast floor slab

The case study on implementation 1 and case study on implementation 2 that this explanation is enumerated is preferred version；As long as four side joint faces of floor and company Reinforcing bar is connect by the reserved joint face of form of the present utility model and connection reinforcing bar, this utility model is applied to various whole thick prefabricated buildings Plate：Such as prefabricated solid floor unit (shown in Fig. 7～9), precast rib composite floor plate unit, prefabricated two-way rib-shaped structure floor Unit (shown in Figure 35), prefabricated unidirectional rib-shaped structure floor panels, prefabricated box-shaped hollow structure floor panels (shown in Figure 34), with And the prestressing force precast floor slab of above-mentioned floor type.It is specifically when light in the composite plate of precast rib composite floor plate unit Matter packing material 2 and band ribbed precast floor slab bottom wire mesh concrete membrane 15 are cancelled, are exactly prefabricated two-way rib-shaped structure building Slab element (shown in Figure 35)；When lightweight filler 2 in the composite plate of precast rib composite floor plate unit and the prefabricated building of band ribbed The rib in a direction is cancelled and cancelled to plate bottom wire mesh concrete membrane 15, but retains side rib joint face, is exactly prefabricated unidirectional Rib-shaped structure floor panels；When lightweight filler 2 is cancelled but band ribbed is pre- in the composite plate of precast rib composite floor plate unit When floor slab bottoms steel-wire-net reinforced concrete thin layer 15 processed retains, be exactly prefabricated box-shaped hollow structure floor panels (Fig. 3 (b) is shown)； Prefabricated unit plate is in plant produced, and precast floor slab bottom arrangement of reinforcement 10, slab strips on columns bottom reinforcement bars 16 are all or part of using high Intensity screw-thread steel and precast floor slab when applying prestressing force is just into prestressing force precast floor slab.

The connecting node of the whole thick precast floor slab of embodiment 3- assembled

Figure 11～30 show the connecting node of the whole thick precast floor slab of assembled of the present utility model.

Figure 11 is the assembling schematic diagram of whole thick precast floor slab, including close rib composite plate b of four blocks of precast floor slabs₁、b₂、b₃、b₄, Vertical member post 1 and carrying wall 6, horizontal member beam 3；Specifically, unit b₁With b₂Between be stitched together, its connecting node For 2C and 2D, constitute one piece of integral prefabricated floor, b₁And b₂With b₄The node 2A and 2B for connecting and composing wide-flat beam formula is bearing in post 1 On, b₁And b₂The node being connected with carrying wall 6 is 1A and 1B, its connection is equally applicable to beam, b₂With b₃The section of the connection of beam 3 simultaneously Point 1C and 1D, its connection are equally applicable to wall；They connect and compose precoated plate assembly connection structural system.

Figure 12～13 show the structure of the compound Slab element 1 of precast rib and connecting node 1A for carrying wall 6.It is concrete and Speech, connecting node 1A includes connection reinforcing bar of the exposed parts in " Contraband " shape arranged on the joint face of the compound Slab element 1 of the close rib of system 8th, carry the reinforcing bar of the configuration of wall 6, and pour in the junction for carrying the bearing of wall 6 and precast floor slab unit, by precast floor slab Unit and beam or wall are connected as overall cast-in-place concrete 18 and conventional connecting node arrangement of reinforcement, wherein, the regular node is matched somebody with somebody Muscle includes longitudinal reinforcement (shown in Figure 13).The intensity of cast-in-place concrete should one-level higher than the vertical member intensity at node place, and adopt With slightly expanded concrete, to prevent the cracking at node.

The connection reinforcing bar 8 reserved on precast floor slab unit joint face is " Contraband " shape, in precast floor slab unit b₂With carrying wall 6 Connecting node in, from the point of view of the cross section of whole connecting node, plate face stretch out connection reinforcing bar 8 with carry wall 6 arrangement of reinforcement structure Into closure tetragon, four longitudinal latch reinforcing bars 12 are penetrated in the interior knuckle of the closure tetragon reinforcing bar, constitute beam type steel Muscles and bones frame.Connecting node after the completion of its casting concrete is the coagulation with beam form arrangement of reinforcement that precast floor slab is formed with beam support Soil structure wide-flat beam (shown in Figure 13), the node of simple structure.

Figure 14～15 show the compound Slab element b of precast rib₂With the structure of connecting node 1B for carrying wall 6 at rib of slab. Specifically, connecting node 1B includes the compound Slab element b of precast rib₂Joint face on the plate that arranges stretch out plate face and stretch out closure Type connection reinforcing bar, precast floor slab bottom arrangement of reinforcement 10, the carrying wall configuration reinforcement of wall 6, and carrying the bearing of wall 6 and precast floor slab list Connection section that the junction of unit pours, that precast floor slab unit and beam or wall are connected as overall cast-in-place concrete 18 and routine Point arrangement of reinforcement, wherein, the regular node arrangement of reinforcement includes longitudinal reinforcement (shown in Figure 15).The intensity of cast-in-place concrete should be than node place The high one-level of vertical member intensity, and slightly expanded concrete is adopted, to prevent the cracking at node.

The connection reinforcing bar reserved on precast floor slab unit joint face is " Contraband " shape and forms closure with described joint face Four shape structures, the precast floor slab bottom arrangement of reinforcement 10 with ribbed is linear, and the plate face is stretched out, exposed parts are in the company of " Contraband " shape Connect reinforcing bar 8 with carry the reinforcing bar of wall 6 in junction it is interspersed together with, from the point of view of the cross section of whole connecting node, connection reinforcing bar 8 with The arrangement of reinforcement for carrying wall 6 constitutes closure tetragon, and four longitudinal latch steel are penetrated in the interior knuckle of the closure tetragon reinforcing bar Muscle 12, constitutes beam type framework of steel reinforcement.Connecting node after the completion of its casting concrete be precast floor slab with beam support formed with The flat dark beam (shown in Figure 14) of xoncrete structure width of beam form arrangement of reinforcement, the node of simple structure.

Figure 16～18 show the compound Slab element b of two pieces of precast ribs₂、b₃Simultaneously and beam 3 connecting node 1C structure. The compound Slab element b of precast rib₂、b₃Joint face on using step joint face 17, i.e., along the length of the joint face lower edge Degree direction crosses out a step wing plate 14, the high h of the step wing plate 14₁=35mm.Specifically, connecting node 1C includes supporting The compound Slab element b of two pieces of precast ribs on the bearing of beam 3₂And b₃, connection reinforcing bar of the exposed parts in " Contraband " shape on joint face 8 and the reinforcing bar and its longitudinal reinforcement (as shown in figure 18) of the configuration of beam 3, and in the bearing of beam 3 and two pieces of precast rib composite plate lists It is pouring at the plate gap of unit, by the compound Slab element b of precast rib₂、b₃Overall cast-in-place concrete 18 is linked as with beam 3.Cast-in-place coagulation The intensity of soil should one-level higher than the vertical member intensity at node place, and slightly expanded concrete is adopted, to prevent the cracking at node.

Two pieces of precast floor slab unit b₂、b₃Connection reinforcing bar 8 of the exposed parts stretched out on adjacent joint face in " Contraband " shape exists Compound stirrup is staggeredly constituted at plate gap, (as shown in Figure 16,17), the reinforcing bar of beam 3 is interspersed in connecting node, from connecting node From the point of view of cross section, the connection reinforcing bar 8 of whole node constitutes compound stirrup, the infolding of the compound stirrup with the stirrup adhesion of tendon and muscle after injury of beam 3 The cableway of four longitudinal latch reinforcing bars 12 and beam 3 is penetrated in angle, it can limit the phase of connection reinforcing bar 8 and the stirrup of beam 3 It is mutually mobile, constitute beam type framework of steel reinforcement；Connecting node after the completion of its casting concrete is that precast floor slab is formed with beam support Reinforced T-beam structure (Figure 16,17 shown in).Figure 16, Figure 19～20 show the compound and of Slab element 1 of two pieces of precast ribs The structure of connecting node 1D of beam 3.The compound Slab element b of precast rib₂、b₃Joint face on using step joint face 17, Length direction i.e. along the joint face lower edge crosses out step wing plate 14, the high h of the step wing plate 14₁=35mm.It is concrete and Speech, connecting node 1C includes the compound Slab element b of two pieces of precast ribs being bearing on the bearing of beam 3₂And b₃, and its on joint face Plate stretches out plate face and stretches out closo connection reinforcing bar, the reinforcing bar of the configuration of the precast floor slab bottom arrangement of reinforcement 10, beam 3 with ribbed and its indulge To reinforcing bar (shown in Figure 20), and pour at the plate gap of the bearing of beam 3 and the compound Slab element of two pieces of precast ribs, by precast The compound Slab element b of rib₂、b₃Overall cast-in-place concrete 18 is linked as with beam 3.The intensity of cast-in-place concrete should be more vertical than node place The high one-level of component strength, and slightly expanded concrete is adopted, to prevent the cracking at node.

Two pieces of precast floor slab unit b₂、b₃Adjacent joint face upper plate stretches out plate face and stretches out closo connection reinforcing bar in plate gap Place staggeredly constitutes compound stirrup, and (as shown in Figure 16,19), the stirrup of beam 3 is interspersed in connecting node, from the transversal of connecting node From the point of view of face, the connection reinforcing bar 8 of whole node constitutes compound stirrup with the stirrup adhesion of tendon and muscle after injury of beam 3, in the interior knuckle of the compound stirrup The cableway of four longitudinal latch reinforcing bars 12 and beam 3 is penetrated, it can limit the mutual shifting of connection reinforcing bar 8 and the stirrup of beam 3 It is dynamic, constitute beam type framework of steel reinforcement；Connecting node after the completion of its casting concrete is the reinforcing bar that precast floor slab is formed with beam support Concrete T-shaped girder construction (Figure 16,19 shown in).The precast floor slab bottom arrangement of reinforcement 10 of precast floor slab unit anchors into Liang Chu.

Figure 21～23 show the compound Slab element b of precast rib₂And b₄Between connecting node 2A structure and with post connect The situation (shown in Figure 21) for connecing, is a kind of slab strips on columns connecting node of plate-column structure, including the joint face of precast floor slab unit The compound Slab element b of precast rib₂And b₄Joint face on using step joint face, i.e., along the length of the joint face lower edge Degree direction crosses out step wing plate 14, the high h of the joint face step wing plate 14₁=40mm, the compound Slab element b of precast rib₂And b₄ Side rib bottom and joint face step wing plate 14 in the slab strips on columns bottom reinforcement bars 16 that longitudinally configures and the plate reserved on joint face Stretch out connection reinforcing bar 8 of the exposed parts in " Contraband " shape and additional connection stirrup 11 and the plate in two pieces of precast floor slab units in face It is pouring at gap, two pieces of precast floor slab units are linked as overall cast-in-place concrete 18, regular node arrangement of reinforcement is included in embedded board Longitudinal reinforcement and longitudinal latch reinforcing bar 12 (shown in Figure 23).

The connection reinforcing bar reserved on precast floor slab unit joint face has connection reinforcing bar 8 of the exposed parts in " Contraband " shape and adds Connection stirrup 11, exposed parts are bent into three sections：The parallel plate face of upper crosspiece is stretched out, lower crosspiece from the outside upper angle of step wing plate 14 upwards Tiltedly stretch out, hold even section to be that vertically connection upper crosspiece and lower crosspiece, exposing for connection reinforcing bar 8 connect reinforcing bar and joint face formation closure Pentagon (shown in Figure 23)；The connection reinforcing bar reserved on two pieces of precast floor slab unit joint faces intermeshes at plate gap, from whole From the point of view of the cross section of individual connecting node, the exposed parts of two precast floor slab units constitute compound envelope in the connection reinforcing bar for " Contraband " shape Stirrup is closed, four longitudinal latch reinforcing bars 12 are penetrated in the interior knuckle of described compound closure stirrup.It can limit two pieces in advance The connection reinforcing bar 8 of floor panels processed and being mutually shifted for additional connection stirrup 11, constitute beam type framework of steel reinforcement；Its casting concrete After the completion of connecting node be the wide-flat beam (Figure 21,22 shown in) being bearing on post, i.e. slab strips on columns alleged by plate-column structure.

Figure 24～25 show the compound Slab element b of precast rib₂And b₄Between connecting node 2B structure, plate-column structure Slab strips on columns connecting node, including the compound Slab element b of joint face precast rib of precast floor slab unit₂And b₄Joint face on Using the joint face 17 of step, i.e. the length direction along the joint face lower edge crosses out step wing plate 14, the connection The high 40mm of face step wing plate 14, the compound Slab element b of precast rib₂And b₄Side rib bottom and joint face step wing plate 14 in longitudinal direction The plate reserved on the slab strips on columns bottom reinforcement bars 16 of configuration and joint face stretches out plate face and stretches out closo connection reinforcing bar and additional company Box cupling muscle 11 and side rib bottom configuration 10；It is pouring at the plate gap of two pieces of precast floor slab units, by two pieces of precast floor slab lists Unit is linked as overall cast-in-place concrete 18, and regular node arrangement of reinforcement includes the longitudinal reinforcement in embedded board and longitudinal latch reinforcing bar 12 (shown in Figure 25).

The connection reinforcing bar reserved on precast floor slab unit joint face has connection reinforcing bar 8 of the exposed parts in " Contraband " shape and adds Connection stirrup 11, exposed parts are bent into three sections：The parallel plate face of upper crosspiece is stretched out, lower crosspiece from exterior angle on step wing plate 14 upwards Tiltedly stretch out, hold even section to be vertical connection upper crosspiece and lower crosspiece, exposing connection reinforcing bar and formed with joint face and close pentagon (Figure 25 It is shown)；The connection reinforcing bar reserved on two pieces of precast floor slab unit joint faces intermeshes at plate gap, from whole connecting node From the point of view of cross section, the exposed parts of two precast floor slab units constitute compound closure stirrup in the connection reinforcing bar for " Contraband " shape, in institute Four longitudinal latch reinforcing bars 12 are penetrated in the interior knuckle of the compound closure stirrup stated.It can limit two pieces of precast floor slab units Connection reinforcing bar 8 and additional connection stirrup 11 are mutually shifted, and constitute beam type framework of steel reinforcement, connection after the completion of its casting concrete Node is comparable to be bearing in wide-flat beam on post (Figure 21,24 shown in), the i.e. slab strips on columns of plate-column structure.

As shown in figure 21, the wide-flat beam of the side rib or edge member composition of cast-in-place concrete and described precast floor slab unit Or the overall width B1 of dark beam is more than or equal to the corresponding hem width degree B of vertical structure post of supporting.

When for plate-column structure, its slab strips on columns bottom reinforcement bars 16 should stagger 2A and 2B nodes shown in Figure 21～25 Connection, present case is that the node left side adopts two prefabricated unit plate b₁And b₂Splicing, and node the right only one of which prefabricated unit plate b₄, using straight-through slab strips on columns bottom reinforcement bars 16, be connected directly between pillar support, thus be avoided that the connection of reinforcing bar same place (as schemed Shown in 11).

2B nodes shown in Figure 33, are in the prefabricated building described in the lower crosspiece full section embedment of the connection reinforcing bar of " Contraband " shape at it Situation in Slab element, remaining above-mentioned 2B node is essentially identical, and simply latch reinforcing bar becomes one.

Figure 26～28 show the compound Slab element b of precast rib₁And b₂Between splicing node 2C structure.Including prefabricated Using the joint face 17 of step, i.e. edge on the joint face of the joint face precast rib of floor panels compound Slab element b1 and b2 The length direction of the joint face lower edge crosses out step wing plate 14, the high h of the joint face step wing plate 14₁=35mm, it is prefabricated The compound Slab element b of close rib₁And b₂Side rib bottom and joint face step wing plate 14 in the precast floor slab bottom arrangement of reinforcement 10 that longitudinally configures With reserve on joint face, connection reinforcing bar 8 of the exposed parts in " Contraband " shape；Pour at the plate gap of two pieces of precast floor slab units , two pieces of precast floor slab units are linked as overall cast-in-place concrete 18, regular node arrangement of reinforcement include embedded board in longitudinal steel Muscle, longitudinal latch reinforcing bar 12 (shown in Figure 28) of rear colligation.

The connection reinforcing steel bars exposed part reserved on precast floor slab unit joint face is in be bent into three sections for " Contraband " shape reinforcing bar：On The parallel plate face of crosspiece is stretched out, lower crosspiece stretches out obliquely from middle on step wing plate 14, hold even section to be vertical connection upper crosspiece Connection reinforcing bar is exposed with lower crosspiece, " Contraband " shape and joint face forms closure pentagon (shown in Figure 28)；Two pieces of precast floor slab units The connection reinforcing bar reserved on joint face intermeshes at plate gap, from the point of view of the cross section of whole connecting node, two precast floor slabs The connection reinforcing bar of unit constitutes compound closure stirrup (shown in Figure 27), and in the interior knuckle of described compound closure stirrup four are penetrated The longitudinal latch reinforcing bar 12 of root.It can limit being mutually shifted for the connection reinforcing bar 8 of two pieces of precast floor slab units, constitute beam type reinforcing bar Skeleton, the connecting node after the completion of its casting concrete is to widen rib (Figure 26,27 shown in) inside suitable one piece of integral slab.

Figure 29～30 show the compound Slab element b of precast rib₁And b₂Between splicing node 2D structure.Including prefabricated The compound Slab element b of the joint face precast rib of floor panels₁And b₂Joint face on using the joint face 17 of step, i.e. edge The length direction of the joint face lower edge crosses out step wing plate 14, the high h of the joint face step wing plate 14₁=35mm, it is prefabricated The compound Slab element b of close rib₁And b₂Side rib bottom and joint face step wing plate 14 in the precast floor slab bottom arrangement of reinforcement 10 that longitudinally configures With the connection reinforcing bar 8 and precast floor slab bottom arrangement of reinforcement 10 reserved on joint face；Pour at the plate gap of two pieces of precast floor slab units It is building, two pieces of precast floor slab units are linked as overall cast-in-place concrete 18, regular node arrangement of reinforcement includes the longitudinal direction in embedded board Reinforcing bar, longitudinal latch reinforcing bar 12 (shown in Figure 30) of rear colligation.

The connection reinforcing steel bars exposed part reserved on precast floor slab unit joint face is bent into three sections in being " Contraband " shape：Upper horizontal stroke Duan Pinghang plate faces are stretched out, lower crosspiece stretches out obliquely from the upper surface middle of step wing plate 14, hold even section to be the upper horizontal stroke of vertical connection Section and lower crosspiece, " Contraband " shape expose connection reinforcing bar and joint face forms closure pentagon (shown in Figure 30)；Two pieces of precast floor slab lists The connection reinforcing bar reserved on first joint face intermeshes at plate gap, from the point of view of the cross section of whole connecting node, two prefabricated buildings The connection reinforcing bar of Slab element constitutes compound closure stirrup (shown in Figure 29), penetrates in the interior knuckle of described compound closure stirrup Four longitudinal latch reinforcing bars 12.It can limit being mutually shifted for the connection reinforcing bar of two pieces of precast floor slab units, constitute beam type steel Muscles and bones frame, the connecting node after the completion of its casting concrete is comparable to widen rib (Figure 26,29 institutes inside one piece of integral slab Show).

Connecting node between the prefabricated solid Slab element of embodiment 4-

Figure 31～32 show the connecting node between two prefabricated solid Slab elements 4 of Fig. 8～10.This connecting node is suitable for Connect in the slab strips on columns of plate-column structure.

The connecting node includes two pieces of adjacent prefabricated solid Slab elements 4 and the company between prefabricated solid Slab element 4 Connect the structure of node.The slab strips on columns connecting node of plate-column structure, including the prefabricated solid floor of joint face of precast floor slab unit The joint face of Slab element 4 adopts vertical plane joint face 17, on the post of the edge member bottom configuration of prefabricated solid Slab element 4 On strip bottom reinforcement bars 16 and joint face reserve plate stretch out plate face stretch out closo connection reinforcing bar and additional connection stirrup 11, with And precast floor slab bottom arrangement of reinforcement 10；It is pouring at the plate gap of two pieces of precast floor slab units, two pieces of precast floor slab units are linked as Overall cast-in-place concrete 18, regular node arrangement of reinforcement includes the longitudinal reinforcement in embedded board and longitudinal (Figure 32 institutes of latch reinforcing bar 12 Show).

The connection reinforcing bar reserved on precast floor slab unit joint face has exposed parts in being " Contraband " shape, and exposed parts are in connection Reinforcing bar is bent into three sections：Upper crosspiece plate face parallel with lower crosspiece is stretched out, holds even section to be vertical connection upper crosspiece and lower crosspiece, " Contraband " Shape exposes connection reinforcing bar and forms closed rectangular with joint face (shown in Figure 31)；The company reserved on two pieces of precast floor slab unit joint faces Connect reinforcing bar to intermesh at plate gap, from the point of view of the cross section of whole connecting node, the connection reinforcing bar structure of two precast floor slab units Into compound closure stirrup, two longitudinal latch reinforcing bars 12, bottom are penetrated in the upper interior knuckle of described compound closure stirrup and is matched somebody with somebody There are four slab strips on columns bottom reinforcement barses 16.It can limit the connection reinforcing bar of two pieces of precast floor slab units and additional connection stirrup 11 Be mutually shifted, constitute beam type framework of steel reinforcement, the connecting node after the completion of its casting concrete is comparable to be bearing on post wide Flat beam (shown in Figure 31).

Connecting node shown in Figure 31～32 and connecting node 2B shown in Figure 24～25 and structure it is similar, its main region It is not：Using the joint face 17 of step on the joint face of the precast floor slab unit in the node of Figure 24～25, i.e., along described The length direction of joint face lower edge crosses out step wing plate 14, and eight slab strips on columns bottom reinforcement barses 16 be all layed in it is prefabricated The inside of floor panels and the structure of step wing plate 14.In the connecting joint structure shown in Figure 31～32, do not set on joint face Step wing plate, and part slab strips on columns bottom reinforcement bars 16 carries out at the construction field (site) colligation.In the connecting node shown in Figure 31～32 In structure, the lashing location of slab strips on columns bottom reinforcement bars 16 is more controllable, can more effectively utilize reinforcing bar, but in construction The cast-in-place concrete for needing support shuttering to pour at node, therefore step is more loaded down with trivial details.In the design, specifically using which kind of shape Formula should be determined according to concrete engineering analysis.

When for plate-column structure, its slab strips on columns bottom reinforcement bars 16 should stagger connection node shown in Figure 31～33, Present case is that step wing plate is not set between connecting node, and the slab strips on columns bottom reinforcement bars 16 of the part is connected to post using straight-through Bearing, thus is avoided that reinforcing bar same place connects.

In the above-described embodiment, quantity of the plate of precast floor slab unit with reinforcing bar is according to plate stressing conditions and its structure shape Formula, is specifically designed by pertinent regulations.Such as when the precast floor slab unit of node is close rib composite plate, its arrangement of reinforcement, rib width Degree L_bAnd side rib width prefabricated L of ribbed plate_b1All should be by《JGJ/T275-2013》Requirement be designed.

When the slab strips on columns that node is applied to plate-column structure connects (such as node 2A, 2B and embodiment 4 of embodiment 3), Slab strips on columns bottom reinforcement bars 16 and plate must be designed with reinforcing bar by the requirement of pertinent regulations and arch without beam.

In the node structure of embodiment 3 and 4, the form and length of the connection reinforcing bar stretched out on precast floor slab unit joint face Degree should be according to specification《GB50010-2010》With《GB50011-2010》In to bending more than or equal to 90 degree Bar Anchorage projection The requirement of length is designed.When plate face reinforcing bar is hinged, bearing anchorage length L_a1≥0.4L_abOr L_a1≥0.4L_ea(meet anti- Shake is required), and across bearing centrage；When plate face reinforcing bar is affixed, bearing anchorage length L_a2≥0.6L_abOr L_a2≥0.6L_ea。 Bearing anchorage length L of precast floor slab bottom arrangement of reinforcement 10_a3≥0.4L_abOr L_a3≥0.4L_eaOr 10 times of bar diameters to weld, And across bearing centrage.The connecting length L of precast floor slab unit bottom arrangement of reinforcement_a4It is straight for 10 times of reinforcing bars when single-sided welding is adopted Footpath.In order to convenient construction and casting concrete need, rear pouring concrete width L answers >=200mm.

The design and construction of the connecting node of embodiment 3 and embodiment 4 mainly comprises the following steps：

(2) additional hooping of connecting node is designed and calculates, it is such as additional to connect stirrup and longitudinal latch reinforcing bar；

(4) precast floor slab unit is produced, transported and is lifted；

(5) colligation, the reinforcing bar at welding node, and according to design, related set aside pre-embedded component is installed；

(6) the rear pouring concrete of connecting node is poured.

Embodiment 5

The structure of the connecting node of embodiment 5 is substantially the same manner as Example 3, and its difference is, connecting node 2B Plate face stretches out the exposed parts of closo and joint face forms the tetragon (as shown in figure 33) of closure, and it is in the connection of " Contraband " shape In precast floor slab unit described in the lower crosspiece full section embedment of reinforcing bar, and latch reinforcing bar is changed into one.

Implement the applicable precast floor slab kind class declaration of the connecting node of the whole thick precast floor slab of assembled

Simply preferred version cited hereinabove；Only four side joint faces of floor and connection reinforcing bar are by of the present utility model The reserved design of form and Prefabrication (shown in Fig. 2 and Fig. 8), and construction assembling is carried out by this utility model, it is of the present utility model Node is applied to various whole thick precast floor slabs：It is such as prefabricated solid floor unit, precast rib composite floor plate unit, prefabricated two-way Rib-shaped structure floor panels, prefabricated unidirectional rib-shaped structure floor panels, prefabricated ribbed hollow-core construction floor panels, and above-mentioned building The prestressing force precast floor slab of plate type.It is specifically when the packing material 2 and band ribbed of precast rib composite floor plate unit Precast floor slab bottom wire mesh concrete membrane 15 is cancelled, is exactly prefabricated two-way rib-shaped structure floor panels (shown in Figure 35)；When The packing material 2 of precast rib composite floor plate unit and band ribbed precast floor slab bottom wire mesh concrete membrane 15 cancel and Cancel the rib in a direction, but retain side rib joint face, be exactly prefabricated unidirectional rib-shaped structure floor panels；When precast rib is combined When the packing material 2 of floor panels is cancelled but band ribbed precast floor slab bottom wire mesh concrete membrane 15 retains, be exactly prefabricated Ribbed hollow-core construction floor panels (shown in Figure 35)；Prefabricated unit plate in plant produced, on the arrangement of reinforcement 10, post of precast floor slab bottom Precast floor slab when strip bottom reinforcement bars 16 completely or partially adopts screw-thread steel and applies prestressing force is just into the prefabricated building of prestressing force Plate.

It is above-mentioned not limited by the above for this utility model preferred implementation, but embodiment of the present utility model System, it is other it is any without departing from spirit of the present utility model and the change, modification, replacement made under principle, combine, it is simple Change, should be equivalent substitute mode, be included within protection domain of the present utility model.

Claims

1. the connecting node of the whole thick precast floor slab of a kind of assembled, including reserve on the joint face and joint face of precast floor slab unit Connection reinforcing bar, the joint face and beam of beam or wall or wall configuration reinforcing bar, and in beam support or wall bearing and precast floor slab list It is that the junction of unit pours, the node that precast floor slab unit and beam or wall are connected as overall cast-in-place concrete and routine is connected Arrangement of reinforcement, it is characterised in that：Connection reinforcing bar is reserved on the joint face, the exposed parts of described connection reinforcing bar are in " Contraband " shape, i.e., Described exposed parts are bent into three sections：Upper crosspiece, lower crosspiece and one connect the upper crosspiece outer end and lower crosspiece outer end End connects wherein one crosspiece for tension of section, the upper crosspiece and lower crosspiece, and the length of the crosspiece of the tension is more than or waits In the length of another crosspiece；Described exposed parts constitute the polygon of closure with described joint face, in precast floor slab list In the connecting node of unit and beam or wall, the reinforcing bar that the connection reinforcing bar of described precast floor slab unit is configured with described beam or wall exists Junction is interspersed together, from the point of view of the cross section of whole connecting node, the reinforcing bar that the connection reinforcing bar is configured with the beam or wall Constitute single closed stirrups or compound stirrup, longitudinal latch steel is penetrated at knuckle in described single closed stirrups or compound stirrup Muscle.

2. the connecting node of the whole thick precast floor slab of a kind of assembled, including reserve on the joint face and joint face of precast floor slab unit Connection reinforcing bar, and pour at the plate gap of two pieces of precast floor slab units, two pieces of precast floor slab units are linked as it is overall The node connection arrangement of reinforcement of cast-in-place concrete and routine, it is characterised in that：Connection reinforcing bar, described connection are reserved on the joint face The exposed parts of reinforcing bar are in " Contraband " shape, i.e., described exposed parts are bent into three sections：On upper crosspiece, lower crosspiece and a connection are described The end of crosspiece outer end and lower crosspiece outer end connects section, the upper crosspiece and the crosspiece that wherein of lower crosspiece is tension, described to receive Length of the length of the crosspiece of drawing more than or equal to another crosspiece；Described exposed parts constitute closure with described joint face Polygonal shape, in the connecting node between two pieces of precast floor slab units, two pieces of precast floor slab units are adjacent Joint face on reserve connection reinforcing bar intermesh at plate gap, from the point of view of the cross section of whole connecting node, described in two pieces Precast floor slab unit connection reinforcing bar constitute compound stirrup, longitudinal latch steel is penetrated in the interior knuckle of the compound stirrup Muscle.

3. the connecting node of the whole thick precast floor slab of assembled according to claim 1 and 2, it is characterised in that：Under described In the described precast floor slab unit of crosspiece part or full section embedment.

4. the connecting node of the whole thick precast floor slab of assembled according to claim 1 and 2, it is characterised in that：Described company Connect reinforcing bar and stretch out closo connection reinforcing bar for plate face, the plate face is stretched out closo and connects reinforcing bar directly by the precast floor slab list The original plate face reinforcing bar bending of unit is formed；The first paragraph that described plate face reinforcing bar stretches out is upper crosspiece, and described upper crosspiece is reaching Described end is bent under backward to specific length and connects section, described end connects section bending is returned again to after specific length is reached and anchors into Joint face bottom, constitutes described lower crosspiece, and the lower crosspiece anchors into part in precast floor slab unit in the precast floor slab It is folded upward at again in the side rib of unit or edge member, and part formation closed stirrups form is anchored into upper crosspiece；Described in whole Plate face stretch out closo connection reinforcing bar in the same plane.

5. the connecting node of the whole thick precast floor slab of assembled according to claim 1 and 2, it is characterised in that：Described company It is additional connection stirrup to connect reinforcing bar, and described additional connection stirrup is the connection reinforcing bar of other increased stirrup shape, and it is at least Have in the side rib or edge member that individual limb is embedded in precast floor slab, described stirrup can be rectangle, trapezoidal or polygon.

6. the connecting node of the whole thick precast floor slab of assembled according to claim 1 and 2, it is characterised in that：Described dress Connecting node with the whole thick precast floor slab of formula when being applied in plate-column structure, described cast-in-place concrete and described prefabricated building Vertical structure post phase of the overall width of the wide-flat beam or dark beam of the side rib of Slab element or edge member composition more than or equal to supporting Corresponding sides width, and the arrangement of reinforcement of the connecting node of the whole described whole thick precast floor slab of assembled reaches the slab strips on columns of sheet-pile and matches somebody with somebody Muscle is required.

7. it is a kind of for realizing claim 1～6 in whole thick precast floor slab described in any one connecting node prefabricated building Slab element, it is the flat cube prefabricated components of armored concrete with upper and lower two surfaces and four joint faces, the company Connection reinforcing bar is reserved with junction, it is characterised in that：The exposed parts of described connection reinforcing bar are in " Contraband " shape, i.e., described connection Reinforcing steel bars exposed part is bent into three sections：Upper crosspiece, lower crosspiece and one connect the end of the upper crosspiece outer end and lower crosspiece outer end Connect section, the upper crosspiece is more than or equal to the crosspiece that wherein of lower crosspiece is tension, the length of the crosspiece of the tension The length of another crosspiece；Described exposed parts constitute the polygonal shape of closure with described joint face.

8. the precast floor slab unit of the connecting node of whole thick precast floor slab according to claim 7, it is characterised in that：It is described Lower crosspiece part or the described precast floor slab unit of full section embedment in.

9. the precast floor slab unit of the connecting node of whole thick precast floor slab according to claim 8, it is characterised in that：It is described Connection reinforcing bar for plate face stretch out closo connection reinforcing bar, the plate face stretch out closo connect reinforcing bar directly by the prefabricated building The original plate face reinforcing bar bending of Slab element is formed；The first paragraph that described plate face reinforcing bar stretches out be upper crosspiece, described upper crosspiece Described end being bent to after specific length is reached under and connecting section, described end connects section and bending is returned again to after specific length is reached Anchor into joint face bottom, constitute described lower crosspiece, the lower crosspiece anchors into part in precast floor slab unit pre- described in side It is folded upward at again in the side rib of floor panels processed or edge member, and part formation closed stirrups form is anchored into upper crosspiece；It is whole Closo connection reinforcing bar described in root is in the same plane.

10. the precast floor slab unit of the connecting node of whole thick precast floor slab according to claim 9, it is characterised in that：Institute The connection reinforcing bar stated is additional connection stirrup, and described additional connection stirrup is the connection reinforcing bar of other increased stirrup shape, Its at least one limb is embedded in the side rib in the precast floor slab unit or edge member.

The precast floor slab unit of the connecting node of the 11. whole thick precast floor slabs according to any one in claim 7～10, It is characterized in that：One or more joint faces of the precast floor slab unit adopt the joint face of step, i.e., along vertical plane The length direction of shape joint face lower edge crosses out one block of step wing plate.