CN214696353U - S-shaped connecting node of full precast concrete floor slab - Google Patents
S-shaped connecting node of full precast concrete floor slab Download PDFInfo
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- CN214696353U CN214696353U CN202120744560.3U CN202120744560U CN214696353U CN 214696353 U CN214696353 U CN 214696353U CN 202120744560 U CN202120744560 U CN 202120744560U CN 214696353 U CN214696353 U CN 214696353U
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Abstract
The utility model belongs to the technical field of building structure, especially, relate to a full precast concrete floor' S S type connected node. The utility model discloses, including two precast floor slabs, be equipped with S type prestressing force splice bar subassembly between two adjacent precast floor slabs, S type prestressing force splice bar subassembly and precast floor slab between be equipped with the bonding mortar structure, S type prestressing force splice bar subassembly and precast floor slab link to each other with the bonding mortar structure respectively, two precast floor slabs on still be equipped with stretch-draw end mounting, the position of stretch-draw end mounting and S type prestressing force splice bar subassembly corresponding. The utility model discloses a mode that the prestressing steel of S type was connected is connected prefabricated floor, and the efficiency of construction is high, and connection performance is good, and the later stage is difficult to the fracture, and the durability is good.
Description
Technical Field
The utility model belongs to the technical field of building structure, a S type connected node of full precast concrete floor is related to.
Background
At present, the assembly type concrete building is developed very rapidly in China, the assembly type technology is widely popularized and applied in various places, various concrete components are prefabricated in factories and transported to a field for installation. The prefabricated reinforced concrete composite slab floor slab is a member which is most applied at present, the connection between the composite slabs is generally connected in a form of cast-in-place slab band, namely a joint of 300 mm is reserved between two composite slabs, a plurality of longitudinal stressed steel bars are placed in the joint and vertically crossed and lapped with the steel bars extending out of the floor slabs on two sides, then a formwork is arranged at the bottom of the cast-in-place slab band, and concrete is poured. This kind of connected node becomes integral cast-in-place seam, and the wholeness is better after pouring, but the efficiency of construction is low, consuming time power, simultaneously because produce the construction cold front easily between new and old concrete, the later stage can produce the risk of ftractureing.
In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a precast concrete composite floor slab [ application number: 201520584860.4], comprising a precast slab and an embedded steel beam embedded at the bottom of the precast slab; the embedded steel beams are cap-shaped steel or U-shaped steel with consistent cross section shapes, completely or basically penetrate through the main body of the prefabricated slab, a plurality of embedded steel beams are arranged in parallel in rows, a pair of outwards turned upper wing plates and part of the web plates of the embedded steel beams are embedded in the prefabricated slab, and the rest of the web plates and the lower wing plates are suspended below the bottom surface of the prefabricated slab; and a pair of upper wing plates of the embedded steel beam is welded with a steel wire, a steel mesh, a steel plate or section steel. The utility model discloses a pre-buried girder steel in the prefabricated plate has greatly strengthened the bending resistance bearing capacity and the rigidity of floor, has reduced the thickness of prefabricated plate, has alleviateed the weight of floor, and the cost is reduced has realized the prefabrication of floor production to make the installation of floor scene become convenient more, quick and reliable. But this scheme has the efficiency of construction low in the use, and is consuming time and wasting power, because produce the cold front of a knife or a sword of construction easily between new and old concrete simultaneously, the risk that the later stage can produce the fracture is great.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a S type connected node of full precast concrete floor.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a full precast concrete floor' S S type connected node, includes two precast floor slabs, is equipped with S type prestressing force splice bar subassembly between two adjacent precast floor slabs, S type prestressing force splice bar subassembly and precast floor slab between be equipped with the bonding mortar structure, S type prestressing force splice bar subassembly and precast floor slab link to each other with the bonding mortar structure respectively, two precast floor slabs on still be equipped with and stretch-draw end mounting, stretch-draw end mounting corresponding with the position of S type prestressing force splice bar subassembly.
In foretell full precast concrete floor' S S type connected node, S type prestressing force splice bar subassembly including set up the prestressing tendons between two adjacent precast floor slabs, the prestressing tendons be the S type, prestressing tendons and precast floor slab link to each other.
In foretell full precast concrete floor' S S type connected node, precast floor in be equipped with prestressing tendons counterpoint piece, prestressing tendons run through prestressing tendons counterpoint piece, tensioning end mounting and prestressing tendons link to each other.
In the above S-shaped connection node of a fully precast concrete floor, the tendon alignment member includes a plurality of prestressed through holes disposed in the precast floor, the prestressed through holes are semicircular, and the prestressed through holes are provided with metal corrugated pipes therein.
In the S-shaped connecting node of the fully precast concrete floor slab, the two precast floor slabs are provided with a plurality of in-slab reinforcing steel bars, the in-slab reinforcing steel bars correspond to the prestressed through holes in position, and the in-slab reinforcing steel bars are connected with the bonding mortar structure.
In the S-shaped connecting node of the fully precast concrete floor slab, the in-slab steel bars between two adjacent precast floor slabs are connected by welding, the bonding mortar structure comprises bonding mortar arranged between the two adjacent precast floor slabs, and the precast floor slabs and the prestressed tendons are respectively connected with the bonding mortar.
In the S-shaped connecting node of the fully-prefabricated concrete floor slab, a joint limiting cushion block is further arranged between two adjacent prefabricated floor slabs, one end of the joint limiting cushion block is connected with the bonding mortar, and the other end of the joint limiting cushion block is in butt fit with the two prefabricated floor slabs.
In the above S-shaped connection node of the fully precast concrete floor slab, the tension end fixing member includes a tension end anchorage arranged on the precast floor slab, and the tension end anchorage is connected with the prestressed tendons.
In the S-shaped connecting node of the fully precast concrete floor slab, a plurality of prestressed tendon anti-deviation alignment plates are arranged in the precast concrete floor slab, and the prestressed tendon anti-deviation alignment plates correspond to the prestressed through holes in position.
In foretell full precast concrete floor' S S type connected node, prestressing tendons prevent that counterpoint board keeps away from prestressing force through-hole one end and is equipped with horizontal support rod, horizontal support rod keep away from prestressing tendons and prevent that counterpoint board one end is equipped with the outside fixed plate.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a mode that the prestressing steel of S type was connected is connected prefabricated floor, and the efficiency of construction is high, and connection performance is good, and the later stage is difficult to the fracture, and the durability is good.
2. The utility model discloses a multichannel connected mode has steel bar welding, bonding mortar bonding and prestressed reinforcement to connect, has fully guaranteed the connected node's between the floor stability, has durable's good effect.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view in another direction of the present invention.
In the figure: the prefabricated floor slab comprises two prefabricated floor slabs 1, an S-shaped prestressed connecting rib assembly 2, a bonding mortar structure 3, a tensioning end fixing piece 4, a prestressed rib 5, a prestressed rib alignment piece 6, a prestressed through hole 7, a metal corrugated pipe 8, an in-slab steel rib 9, bonding mortar 10, a joint limiting cushion block 11, a tensioning end anchorage device 12, a prestressed rib deviation prevention alignment plate 13, a horizontal supporting rod 14 and an external fixing plate 15.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-2, an S-shaped connection node of a fully precast concrete floor slab comprises two precast floor slabs 1, an S-shaped prestressed connection rib assembly 2 is arranged between two adjacent precast floor slabs 1, a bonding mortar structure 3 is arranged between the S-shaped prestressed connection rib assembly 2 and the precast floor slabs 1, the S-shaped prestressed connection rib assembly 2 and the precast floor slabs 1 are respectively connected with the bonding mortar structure 3, two precast floor slabs 1 are further provided with tensioning end fixing members 4, and the tensioning end fixing members 4 correspond to the S-shaped prestressed connection rib assemblies 2 in position.
In this embodiment, before using, with two precast floor slab 1 docks together, pass precast floor slab 1 with S type prestressing force splice bar subassembly 2, through the taut fixed back of tensioning end mounting 4, carry out the shutoff with bonding mortar structure 3 butt joint, accomplish the connection of precast floor slab after the maintenance, the mode that adopts S type prestressing force splice bar subassembly 2 is connected precast floor slab, the efficiency of construction is high, the connectivity is good, the later stage is difficult to the fracture, the durability is good, simultaneously through the combination of S type prestressing force splice bar subassembly 2 and bonding mortar structure 3, the stability of the connected node between the floor slab has fully been guaranteed, durable' S good effect has.
Referring to fig. 1 and 2, the S-shaped prestressed reinforcement assembly 2 includes a prestressed reinforcement 5 disposed between two adjacent precast floor slabs 1, the prestressed reinforcement 5 is S-shaped, and the prestressed reinforcement 5 is connected to the precast floor slabs 1.
Specifically, during connection, the prestressed reinforcement 5 sequentially penetrates through two adjacent prefabricated floor slabs 1, the two prefabricated floor slabs 1 are connected through the prestressed reinforcement 5, the prefabricated floor slabs are connected in an S-shaped prestressed reinforcement mode, construction efficiency is high, connection performance is good, cracking is not prone to occurring in the later period, and durability is good.
Referring to fig. 1 and 2, a prestressed tendon aligning member 6 is arranged in the precast floor slab 1, the prestressed tendon 5 penetrates through the prestressed tendon aligning member 6, and the tensioning end fixing member 4 is connected with the prestressed tendon 5.
In this embodiment, when connecting the tendon 5, insert the tendon 5 into the tendon alignment piece 6, fix a position the tendon 5 through the tendon alignment piece 6.
The prestressed tendon aligning piece 6 comprises a plurality of prestressed through holes 7 arranged in the prefabricated floor slab 1, the prestressed through holes 7 are semicircular, and metal corrugated pipes 8 are arranged in the prestressed through holes 7.
In this embodiment, the prestressed through-holes 7 are semicircular, and after the two prefabricated floor slabs 1 are butted, a complete circular prestressed through-hole is formed, the metal corrugated pipe 8 is pre-embedded in the prestressed through-hole 7, the diameter of the prestressed through-hole 7 is 5 centimeters, and the center distance L between the prestressed through-holes 7 is 400 millimeters.
Referring to fig. 2, a plurality of in-slab steel bars 9 are arranged on the two precast floor slabs 1, the positions of the in-slab steel bars 9 correspond to the positions of the prestressed through holes 7, and the in-slab steel bars 9 are connected with the bonding mortar structures 3.
The length of the in-plate steel bars 9 extending out of the plate edge is 5 centimeters, the in-plate steel bars 9 between two adjacent prefabricated floor plates 1 are connected through welding, the bonding mortar structure 3 comprises bonding mortar 10 arranged between the two adjacent prefabricated floor plates 1, and the prefabricated floor plates 1 and the prestressed tendons 5 are respectively connected with the bonding mortar 10.
In this embodiment, the steel bars 9 in the slab between two adjacent prefabricated floor slabs 1 are connected by welding, and are firmly connected, and the joint is sealed by bonding mortar 10.
Referring to fig. 1 and 2, a joint limiting cushion block 11 is further arranged between two adjacent prefabricated floor slabs 1, one end of the joint limiting cushion block 11 is connected with the bonding mortar 10, and the other end of the joint limiting cushion block is in butt fit with the two prefabricated floor slabs 1.
In this embodiment, the seam limiting cushion block 11 limits and abuts against the seam.
Referring to fig. 1 and 2, the tension end fixing member 4 includes a tension end anchor 12 disposed on the precast floor slab 1, and the tension end anchor 12 is connected to the tendon 5.
In this embodiment, after the tendons 5 are connected, the tendons 5 are tensioned and fixed by the tensioning end anchorage 12.
Referring to fig. 1 and 2, a plurality of prestressed tendon anti-deviation alignment plates 13 are arranged in the precast floor slab 1, and the prestressed tendon anti-deviation alignment plates 13 correspond to the prestressed through holes 7 in position.
In this embodiment, when connecting prestressing tendons 5, with prestressing tendons 5 and 13 looks butt of prestressing tendons anti-off-set board, carry out the butt to prestressing tendons 5 lateral part through prestressing tendons anti-off-set board 13, avoid prestressing tendons 5 to take place not hard up in the connection process, improved the accuracy of prestressing tendons 5 installation.
The prestressed tendon deviation prevention aligning plate 13 one end far away from the prestressed through hole 7 is provided with a horizontal support rod 14, the horizontal support rod 14 one end far away from the prestressed tendon deviation prevention aligning plate 13 is provided with an external fixing plate 15.
In this embodiment, the tendon 5 is supported and connected by the horizontal support bar 14 and the external fixing plate 15.
The utility model discloses a theory of operation is:
in the production stage of the precast floor slab, prestressed through holes 7 with the radius of 200 mm, the distance of 400 mm and the semicircular aperture of 5 cm are reserved in the precast floor slab 1 on one side, and metal corrugated pipes 8 are embedded in the holes. After the prefabricated floor slabs 1 are hoisted in place on site, two joint limiting cushion blocks 11 are placed at two ends of a joint between the two prefabricated floor slabs 1, then the prestressed tendons 5 penetrate through the through holes at one ends of the prefabricated floor slabs 1, sequentially penetrate through each semicircular through hole in the prefabricated floor slabs, penetrate out from the other ends of the prefabricated floor slabs, are tensioned by a tensioning device and are fixed by a tensioning end anchorage 12. Meanwhile, the reinforcing steel bars extending out of the two plates are connected in a welding mode. Finally, the joints are sealed by bonding mortar 10, the connection of the prefabricated floor slabs is completed after maintenance,
the prefabricated floor slab is connected by adopting the S-shaped prestressed reinforcement connection mode, the construction efficiency is high, the connection performance is good, the later-stage cracking is not easy, the durability is good, meanwhile, a plurality of connection modes are adopted, reinforcement welding, bonding mortar bonding and prestressed reinforcement connection are realized, the stability of the connection node between the floor slabs is fully ensured, and the good effect of durability is realized.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Although terms such as two pre-cast floor slabs 1, S-shaped pre-stressed joint bar assemblies 2, bonded mortar structures 3, tension end fixing members 4, pre-stressed tendons 5, pre-stressed tendon alignment members 6, pre-stressed through holes 7, metal corrugated pipes 8, in-slab steel tendons 9, bonded mortar 10, joint limiting cushion blocks 11, tension end anchors 12, pre-stressed tendon anti-alignment plates 13, horizontal supporting rods 14, external fixing plates 15, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. The utility model provides a full precast concrete floor' S S type connected node, includes two precast floor slab (1), its characterized in that is equipped with S type prestressing force splice bar subassembly (2) between two adjacent precast floor slab (1), S type prestressing force splice bar subassembly (2) and precast floor slab (1) between be equipped with bonding mortar structure (3), S type prestressing force splice bar subassembly (2) and precast floor slab (1) link to each other with bonding mortar structure (3) respectively, two precast floor slab (1) on still be equipped with stretch-draw end mounting (4), stretch-draw end mounting (4) corresponding with the position of S type prestressing force splice bar subassembly (2).
2. An S-shaped joint of a fully precast concrete floor according to claim 1, characterized in that the S-shaped prestressed joint bar assembly (2) comprises prestressed bars (5) arranged between two adjacent precast floor slabs (1), the prestressed bars (5) are S-shaped, and the prestressed bars (5) are connected with the precast floor slabs (1).
3. An S-shaped connection node of a fully precast concrete floor slab according to claim 2, characterized in that a prestressed tendon alignment member (6) is arranged in the precast floor slab (1), the prestressed tendon (5) penetrates through the prestressed tendon alignment member (6), and the tensioning end fixing member (4) is connected with the prestressed tendon (5).
4. The S-shaped connection node of the fully precast concrete floor slab according to claim 3, wherein the tendon alignment member (6) comprises a plurality of prestressed through holes (7) arranged in the precast floor slab (1), the prestressed through holes (7) are semicircular, and metal corrugated pipes (8) are arranged in the prestressed through holes (7).
5. The S-shaped connecting joint of the fully precast concrete floor slab as claimed in claim 4, wherein a plurality of in-slab steel bars (9) are arranged on the two precast floor slabs (1), the in-slab steel bars (9) correspond to the positions of the prestressed through holes (7), and the in-slab steel bars (9) are connected with the bonding mortar structure (3).
6. An S-shaped connection node of a fully precast concrete floor slab according to claim 5, characterized in that the in-slab reinforcing steel bars (9) between two adjacent precast floor slabs (1) are connected by welding, the bonding mortar structure (3) comprises bonding mortar (10) arranged between two adjacent precast floor slabs (1), and the precast floor slabs (1) and the prestressed reinforcing steel bars (5) are respectively connected with the bonding mortar (10).
7. The S-shaped connecting joint of the fully precast concrete floor slab as claimed in claim 6, wherein a joint limiting cushion block (11) is further arranged between two adjacent precast floor slabs (1), one end of the joint limiting cushion block (11) is connected with the bonding mortar (10), and the other end is in butt fit with the two precast floor slabs (1).
8. An S-shaped joint for a fully precast concrete floor according to claim 7, wherein the tension end fixing member (4) comprises a tension end anchorage (12) provided on the precast floor (1), and the tension end anchorage (12) is connected to the tendon (5).
9. An S-shaped connection node of a fully precast concrete floor slab according to claim 8, characterized in that a plurality of prestressed tendon anti-deviation plates (13) are arranged in the precast floor slab (1), and the prestressed tendon anti-deviation plates (13) correspond to the prestressed through holes (7).
10. The S-shaped connection node of a fully precast concrete floor slab according to claim 9, wherein a horizontal support rod (14) is provided at one end of the tendon misalignment preventing plate (13) away from the prestressed through-hole (7), and an external fixing plate (15) is provided at one end of the horizontal support rod (14) away from the tendon misalignment preventing plate (13).
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| CN202120744560.3U CN214696353U (en) | 2021-04-13 | 2021-04-13 | S-shaped connecting node of full precast concrete floor slab |
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| CN202120744560.3U CN214696353U (en) | 2021-04-13 | 2021-04-13 | S-shaped connecting node of full precast concrete floor slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753668A (en) * | 2022-04-14 | 2022-07-15 | 江苏海洋大学 | Construction method for reinforcing brick masonry wall by unbonded prestressed steel wire ropes |
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2021
- 2021-04-13 CN CN202120744560.3U patent/CN214696353U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753668A (en) * | 2022-04-14 | 2022-07-15 | 江苏海洋大学 | Construction method for reinforcing brick masonry wall by unbonded prestressed steel wire ropes |
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