CN201574492U - Welded precast concrete floor slab joint connection node - Google Patents
Welded precast concrete floor slab joint connection node Download PDFInfo
- Publication number
- CN201574492U CN201574492U CN2009202834619U CN200920283461U CN201574492U CN 201574492 U CN201574492 U CN 201574492U CN 2009202834619 U CN2009202834619 U CN 2009202834619U CN 200920283461 U CN200920283461 U CN 200920283461U CN 201574492 U CN201574492 U CN 201574492U
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Abstract
The utility model provides a welded precast concrete floor slab joint connection node used in construction, which comprises an X-shaped connecting part, a cover plate-type connecting part, an exterior projecting platform on the side of a support plate, and an exterior extending platform on the side of a supported plate, wherein, the X-shaped connecting part is composed of anchor bars, insertion panels and insertion strips; the cover plate type connecting part is composed of slab-bottom steel reinforcements, pre-embedded steel plates and a cover plate; metal embedded parts are arranged at the lateral upper ends of the support plate and the supported plate and composed of the anchor bars and the insertion panels; the X-shaped connecting part is formed due to the structure that the insertion panel of the support plate and the insertion panel of the supported plate are fixedly connected through the insertion strips; pre-embedded metal plates are arranged at the lateral lower ends of the support plate and the supported plate and welded with the precast slab-bottom steel reinforcements; and the pre-embedded metal plate of the support plate and the pre-embedded metal plate of the supported plate are fixedly connected through the metal cover plate so as to form the cover plate type connecting part. The exterior protruding platform on the side of the support plate and the exterior extending platform of the supported plate are connected in an overlapping manner and fixedly connected with the cover plate type connecting part at the bottom of the slab through the X-shaped connecting part at the top of the slab.
Description
Technical field
The utility model relates to precast assemble floor slab crack joint design and construction field, particularly a kind of welding type slab crack joint for precast concrete floor system.
Background technology
At present, the precast concrete floor system mainly contains assembled integral floor system and superposed type floor system, and promptly at precast plate upper berth steel mesh reinforcement, a kind of prefabricated building cover structure of back pouring concrete all belongs to " wet type " floor system.Precast plate in the assembled integral superstructure mostly is precast prestressed flat board; Precast plate is common in the superposed type superstructure precast hollow slab, groove type plate and sandwich slab etc.The existence of pouring concrete behind " wet type " superstructure, the shortcoming that has kept cast-in-place concrete building roof, need a large amount of wet trade and field operation, need a certain amount of template and support, operation complexity, quality are difficult for guaranteeing, long construction period, season and weather are big to programming and quality influence, and many to resource consumption, and be big to ambient influnence.
On the way that the plate seam connects, for the assembled integral floor system, the reinforcing bar that its precast plate side will be reserved certain-length links together plate side reinforcing bar by construction measure then, and the plate face will be done plucking and handle, and lays reinforced mesh, fluid concrete then.Though having, this kind way save to support and the template consumption, the characteristics that superstructure rigidity is big, and its complex process, industrialization degree is low, conducting oneself with dignity causes geological process bigger more greatly, unfavorable to the cost of structure.And for the superposed type superstructure, as the superimposed superstructure of precast hollow slab, its plate side is made Alveolus type usually, draws back certain distance between the adjacent floor, stitches between the teeth groove and the cast-in-situ concrete of precast plate face at plate.Investigation finds that the superposed type superstructure is comparatively general in the phenomenon of temperature action and normal service load effect lower plate seam back pouring concrete cracking, and it is relatively poor that Alveolus type plate seam connects shear-carrying capacity, superstructure will be difficult to guarantee in the elastic working stage under the geological process, the plate seam will take the lead in destroying, behind the plate seam reinforcement yielding, the superstructure globality reduces, and will produce bigger plane internal strain and then take place that superstructure is whole to be destroyed, and this phenomenon is comparatively common in violent earthquake repeatedly.
The utility model content
The utility model has proposed a kind of prefabricated assembled concrete superstructure slab crack joint at above-mentioned the deficiencies in the prior art.
The technical problem that the utility model further will solve provides a kind of full-prefabricated assembled concrete superstructure slab crack joint reliable, that structural performance is good, industrialization degree is high of constructing rationally, connect.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
The supported plate that comprises reinforcing bar at the bottom of the gripper shoe of reinforcing bar at the bottom of built-in first plate and built-in second plate, it is characterized in that, choose platform outside on gripper shoe, being provided with, on supported plate, be provided with overhanging platform, describedly outer choose platform and overhanging platform overlaps mutually, be provided with the X-shaped connector in gripper shoe and zone, supported plate plate top, described X-shaped connector comprises and is embedded in first built-in fitting in the gripper shoe and is embedded in second built-in fitting in the supported plate, described first built-in fitting is made up of first dowel and first panel, and first dowel is connected with first panel, described second built-in fitting is made up of second dowel and second panel, and second dowel is connected with second panel, the surface of first panel adjacent with second panel is exposed at outside the gripper shoe, the surface of second panel adjacent with first panel is exposed at outside the supported plate, between described first panel and second panel, be provided with filler rod, and filler rod respectively with first panel, second panel is welded to connect.
Be provided with the cover-plate type connector in gripper shoe and territory, supported plate plate base area, described cover-plate type connector comprises the first built-in metal plate that is connected with reinforcing bar at the bottom of first plate, second built-in metal plate and the metal cover board that is connected with reinforcing bar at the bottom of second plate, and metal cover board is welded to connect with the first built-in metal plate, the second built-in metal plate respectively.
First panel is obliquely installed, and second panel is obliquely installed, and the upper shed of being tilted to constitute by first panel and second panel is greater than the under shed that is made of first panel and the inclination of second panel.
The length of filler rod is identical with the flat segments length of first dowel, and also identical with the flat segments length of second dowel.
Gripper shoe is precast concrete flat boards such as prefabricated concrete hollow slab or sandwich slab, and supported plate is precast concrete flat boards such as prefabricated concrete hollow slab or sandwich slab.
Compared with prior art, the utlity model has following characteristics:
1) the utility model new type of plate seam connects the bearing capacity and the normal functional performance that can improve superstructure.(1) adopt gripper shoe to choose platform outward, the structural form of the pre-overhanging platform of supported plate makes adjacent floor support mutually, and transmits the vertical shear under superstructure deadweight and the service load effect.Precast floor slab is a pre-stress floor, and prestressed precompressed effect meeting makes floor produce antiarch at the bottom of the plate, and because of reasons such as loss of prestress difference and making errors, the antiarch size of each piece precast plate is not quite similar.Each standard width of a room in an old-style house of superstructure is made up of the precast plate of some, and the difference of each piece floor antiarch can cause the out-of-flatness of floor, and the utility model is constructed the planeness that can effectively eliminate floor antiarch difference and improve superstructure; Transmission and the interaction between the adjacent plate by vertical shear reduce a certain floor because of being subjected to the amount of deflection that bigger concentrated force produces.(2) pre-embedded steel slab adds the type of attachment that cover plate welds at the bottom of supported plate of employing and the gripper shoe, make the plate seam connect and to transmit transverse slat to stress, realized having the performance of bidirectional stress by the superstructure that unidirectional pre-stress floor is formed, making is subjected to force mode more reasonable, thereby improved the bearing capacity of superstructure, to the transmission of stress the superstructure mid-span deflection has obviously been reduced because of transverse slat simultaneously.This structure has crucial meaning to the large span plate floor.(3) the previous constructions form can effectively improve the globality and the rigidity of superstructure, thereby alleviates the dither effect of superstructure under the dynamic load effect, has improved human comfort.
2) the utility model new type of plate seam connects stress performance in the plane that can improve superstructure.The type of attachment that adopts gripper shoe and supported plate upper limb metal embedded part to add the filler rod welding cooperates the lower edge pre-embedded steel slab to add the type of attachment of cover plate, can transmit shearing in the face of floor under wind load and geological process, increase rigidity and globality in the plane of superstructure, reduced the distortion of superstructure under horizontal loading.Can guarantee that superstructure is in the elastic working stage under design basis earthquake intensity geological process, avoid structural system design load bang path to change because of the destruction of superstructure, evaded the generation of the failure mode beyond the design object, as prefabricated superstructure common in the violent earthquake repeatedly because of rigidity in the face and the relatively poor failure mode that causes the internal strain of superstructure face to surpass the bearing length of floor of globality.
3) the utility model applies to the different parts that the plate seam connects according to X-shaped connector and cover-plate type connector mechanical property separately with both.Panel has certain gradient in the X-shaped connector, between two panels the slit up big and down small help the in place of filler rod and the welding; Filler rod length is identical with the flat segments length of dowel, can avoid dowel and panel under complicated load mode bending failure to take place and the reduction of lowering the connector shear-carrying capacity.This make simple structure, easy construction, and test shows that the manner has shear-carrying capacity and deformability in the higher face.The connected mode that pre-embedded steel slab adds panel has bending resistance outside the bigger plane when possessing certain shear-carrying capacity, the cover-plate type connector is arranged at the superstructure below, the precast floor slab transverse slat be can effectively transmit to stress, thereby the vertical bearing capacity and the rigidity of superstructure improved.Simultaneously, two connectors are used and can form a couple mechanism up and down, make up and down two connectors reach the tension and compression balance and interact, can avoid single connector the imagination of destroying too early to occur under the complicated applied force situation, the effect that two connectors are used is better than the effect that single connector uses alone.
4) above-mentioned structure can realize that structure manufacture all finishes in factory, installation process is " dry type " operation all, eliminated " wet trade ", reduced field operation, greatly reduced use amount, the working environment of improvement has been arranged, reduce working strength template, support and scaffold, improve component quality, advantage such as increase work efficiency also cuts down the consumption of energy simultaneously, alleviates social benefits such as the pollution of environment and influences.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is an X-shaped connector structural representation;
Fig. 3 is the opening schematic diagram that X-shaped connector panel 5 and panel 6 form;
Fig. 4 is a cover-plate type connector structural representation.
The specific embodiment
With reference to the accompanying drawings, embodiment of the present utility model being done one describes in detail:
The utility model welding type slab crack joint for precast concrete floor system, the supported plate 16 that comprises reinforcing bar 11 at the bottom of the gripper shoe 15 of reinforcing bar 10 at the bottom of built-in first plate and built-in second plate, choose platform 8 outside on gripper shoe 15, being provided with, on supported plate 16, be provided with overhanging platform 9, describedly outer choose platform 8 and overhanging platform 9 overlaps mutually, be provided with X-shaped connector 1 in gripper shoe 15 and zone, supported plate 16 plates top, described X-shaped connector 1 comprises and is embedded in first built-in fitting in the gripper shoe 15 and is embedded in second built-in fitting in the supported plate 16, described first built-in fitting is made up of first dowel 3 and first panel 5, and first dowel 3 is connected with first panel 5, described second built-in fitting is made up of second dowel 4 and second panel 6, and second dowel 4 is connected with second panel 6, between described first panel 5 and second panel 6, be provided with filler rod 7, and filler rod 7 respectively with first panel 5, second panel 6 is welded to connect.
Simultaneously, be provided with cover-plate type connector 2 in gripper shoe 15 and territory, supported plate 16 plate base area, described cover-plate type connector 2 comprises the first built-in metal plate 12 that is connected with reinforcing bar 10 at the bottom of first plate, the second built-in metal plate 13 and the metal cover board 14 that are connected with reinforcing bar 11 at the bottom of second plate, and metal cover board 14 is welded to connect with the first built-in metal plate 12, the second built-in metal plate 13 respectively.
Under vertical uniform load q, transmit shearing outside the plane by platform 7 and platform 8, under the connection of cover plate 14, transmit moment of flexure outside the plane by pre-embedded steel slab 12 at the bottom of the plate and pre-embedded steel slab 13; Frictional force by contact surface between X-shaped connector 1, cover-plate type connector 2 and platform 7 and the platform 8 under geological process is transmitted seismic shear.The utility model realizes transmitting between the precast floor slab the outer internal force in the plane and plane in the form that connects by dry type, and have structure rationally, connect reliably, field operation is few, speed of application is fast and anti-seismic performance is good characteristics.During concrete the installation, first hoisted in position gripper shoe, lifting supported plate in back is welded to connect built-in fitting with filler rod and cover plate then.
Claims (5)
1. welding type slab crack joint for precast concrete floor system, the supported plate (16) that comprises reinforcing bar (11) at the bottom of the gripper shoe (15) of reinforcing bar (10) at the bottom of built-in first plate and built-in second plate, it is characterized in that, choose platform (8) outside on gripper shoe (15), being provided with, on supported plate (16), be provided with overhanging platform (9), described outer platform (8) and the mutual overlap joint of overhanging platform (9) chosen, be provided with X-shaped connector (1) in gripper shoe (15) and zone, supported plate (16) plate top, described X-shaped connector (1) comprises and is embedded in first built-in fitting in the gripper shoe (15) and is embedded in second built-in fitting in the supported plate (16), described first built-in fitting is made up of first dowel (3) and first panel (5), and first dowel (3) is connected with first panel (5), described second built-in fitting is made up of second dowel (4) and second panel (6), and second dowel (4) is connected with second panel (6), the surface of first panel (5) adjacent with second panel (6) is exposed at outside the gripper shoe (15), the surface of second panel (6) adjacent with first panel (5) is exposed at outside the supported plate (16), between described first panel (5) and second panel (6), be provided with filler rod (7), and filler rod (7) respectively with first panel (5), second panel (6) is welded to connect.
2. welding type slab crack joint for precast concrete floor system according to claim 1, it is characterized in that, be provided with cover-plate type connector (2) in gripper shoe (15) and territory, supported plate (16) plate base area, described cover-plate type connector (2) comprises the first built-in metal plate (12) that is connected with reinforcing bar (10) at the bottom of first plate, the second built-in metal plate (13) and the metal cover board (14) that are connected with reinforcing bar (11) at the bottom of second plate, and metal cover board (14) is welded to connect with the first built-in metal plate (12), the second built-in metal plate (13) respectively.
3. welding type slab crack joint for precast concrete floor system according to claim 1 and 2, it is characterized in that, first panel (5) is obliquely installed, second panel (6) is obliquely installed, and the upper shed of being tilted to constitute by first panel (5) and second panel (6) (17) is greater than the under shed (18) that is tilted to constitute by first panel (5) and second panel (6).
4. welding type slab crack joint for precast concrete floor system according to claim 3 is characterized in that, the length of filler rod (7) is identical with the flat segments length of first dowel (3), and also identical with the flat segments length of second dowel (4).
5. welding type slab crack joint for precast concrete floor system according to claim 1, it is characterized in that, gripper shoe (15) is precast concrete flat boards such as prefabricated concrete hollow slab or sandwich slab, and supported plate (16) is precast concrete flat boards such as prefabricated concrete hollow slab or sandwich slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202834619U CN201574492U (en) | 2009-12-18 | 2009-12-18 | Welded precast concrete floor slab joint connection node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202834619U CN201574492U (en) | 2009-12-18 | 2009-12-18 | Welded precast concrete floor slab joint connection node |
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| Publication Number | Publication Date |
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| CN201574492U true CN201574492U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202834619U Expired - Lifetime CN201574492U (en) | 2009-12-18 | 2009-12-18 | Welded precast concrete floor slab joint connection node |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005494A (en) * | 2014-06-10 | 2014-08-27 | 东南大学 | Prefabricated shear wall dry-wet mixed vertical connecting joint structure |
| CN104032850A (en) * | 2014-06-17 | 2014-09-10 | 东南大学 | Prefabricated shear wall dry type vertical connecting node and construction method |
| CN107882232A (en) * | 2017-11-23 | 2018-04-06 | 哈尔滨工业大学 | A kind of assembly concrete is mated formation the node connector and attaching method thereof of building cover board in advance |
| CN111877621A (en) * | 2020-07-06 | 2020-11-03 | 东南大学 | Precast concrete superstructure slab joint H shaped steel connected node |
| CN112031231A (en) * | 2020-09-14 | 2020-12-04 | 河南工业大学 | Full-assembly type floor system and prefabricated floor cover plate unit |
| CN114922299A (en) * | 2022-06-21 | 2022-08-19 | 张驰坤 | ALC plate steel structure antidetonation connected node |
-
2009
- 2009-12-18 CN CN2009202834619U patent/CN201574492U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104005494A (en) * | 2014-06-10 | 2014-08-27 | 东南大学 | Prefabricated shear wall dry-wet mixed vertical connecting joint structure |
| CN104005494B (en) * | 2014-06-10 | 2016-04-06 | 东南大学 | A kind of precast shear wall does-wet mixing type vertical connection nodes structure |
| CN104032850A (en) * | 2014-06-17 | 2014-09-10 | 东南大学 | Prefabricated shear wall dry type vertical connecting node and construction method |
| CN105421614A (en) * | 2014-06-17 | 2016-03-23 | 东南大学 | Construction method of prefabricated shear wall dry type vertical connection joint |
| CN105421614B (en) * | 2014-06-17 | 2017-09-19 | 东南大学 | The construction method of precast shear wall dry type vertical connection nodes |
| CN107882232A (en) * | 2017-11-23 | 2018-04-06 | 哈尔滨工业大学 | A kind of assembly concrete is mated formation the node connector and attaching method thereof of building cover board in advance |
| CN111877621A (en) * | 2020-07-06 | 2020-11-03 | 东南大学 | Precast concrete superstructure slab joint H shaped steel connected node |
| CN112031231A (en) * | 2020-09-14 | 2020-12-04 | 河南工业大学 | Full-assembly type floor system and prefabricated floor cover plate unit |
| CN114922299A (en) * | 2022-06-21 | 2022-08-19 | 张驰坤 | ALC plate steel structure antidetonation connected node |
| CN114922299B (en) * | 2022-06-21 | 2024-04-26 | 张驰坤 | ALC plate steel construction antidetonation connected node |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20091218 |