CN113047495A - Assembled wood-concrete combined floor system - Google Patents

Assembled wood-concrete combined floor system Download PDF

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Publication number
CN113047495A
CN113047495A CN202110451561.3A CN202110451561A CN113047495A CN 113047495 A CN113047495 A CN 113047495A CN 202110451561 A CN202110451561 A CN 202110451561A CN 113047495 A CN113047495 A CN 113047495A
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CN
China
Prior art keywords
wood
orthogonal
precast concrete
concrete
floor system
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110451561.3A
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Chinese (zh)
Inventor
陈玲珠
王卓琳
许清风
张富文
冷予冰
郑乔文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI JIANKE PRESTRESSED TECHNOLOGY ENGINEERING CO LTD
Shanghai Building Science Research Institute Co Ltd
Original Assignee
SHANGHAI JIANKE PRESTRESSED TECHNOLOGY ENGINEERING CO LTD
Shanghai Building Science Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI JIANKE PRESTRESSED TECHNOLOGY ENGINEERING CO LTD, Shanghai Building Science Research Institute Co Ltd filed Critical SHANGHAI JIANKE PRESTRESSED TECHNOLOGY ENGINEERING CO LTD
Priority to CN202110451561.3A priority Critical patent/CN113047495A/en
Publication of CN113047495A publication Critical patent/CN113047495A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/324—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with incisions or reliefs in the surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/04—Mats

Abstract

The invention relates to an assembled wood-concrete combined floor system, which comprises an orthogonal glued wood board and a precast concrete board; a plurality of slots are formed in the upper surface of the orthogonal plywood at intervals, and the step structures at the edge parts of the adjacent orthogonal plywood are lapped and then fixedly connected by a fastener; embedding a reinforcing mesh connecting piece and a precast concrete plate side embedded part before the precast concrete plate is poured; coating adhesive at the slot, and inserting the reinforcing mesh connecting piece into the slot; the side embedded parts of the adjacent precast concrete plates are connected by adopting a connecting piece, and a cavity part is formed and fixed by pouring concrete. The invention enables the orthogonal glued wood boards and the precast concrete boards to achieve the combined action, and the adjacent orthogonal glued wood boards and the precast concrete boards are connected by adopting the connecting pieces to form a wood-concrete combined floor system.

Description

Assembled wood-concrete combined floor system
Technical Field
The invention relates to an assembled wood-concrete composite floor system, and belongs to the technical field of civil engineering.
Background
At present, floor slabs in light or heavy wood structure buildings usually adopt a floor slab system consisting of wood slabs and wood joists. As the strength and the rigidity of the floor are lower, and the sound insulation and the fire resistance are poorer, a plurality of students propose the wood joist-concrete combined floor, and the strength, the rigidity, the sound insulation and the fire resistance of the floor can be obviously improved. However, because wood joists are generally unidirectional in arrangement, the floor slab has poor bidirectional performance.
The orthogonal laminated wood is a wooden product formed by laminating and gluing orthogonal assemblies of laminates. Because the laminates are orthogonally and bidirectionally glued, the defect of large difference of stress performance of wood straight grains and transverse grains is effectively overcome, how to provide an assembled wood-concrete combined floor system, the orthogonal glued wood and the concrete slab are well connected, and meanwhile, the connection structure of the adjacent orthogonal glued wood boards and the precast concrete slab can be considered, and the technical problem to be solved in the field is urgently solved.
Disclosure of Invention
The invention aims to provide an assembled wood-concrete combined floor system, which adopts a shear connector to connect orthogonal laminated wood and a concrete slab to form an orthogonal laminated wood-concrete combined floor and connects the adjacent orthogonal laminated wood and a precast concrete slab, thereby fully playing the strength of wood and concrete, obviously improving the bidirectional performance of the floor and improving the bearing capacity of the floor.
The invention adopts the following technical scheme:
an assembled wood-concrete composite floor system comprises an orthogonal glued wood board 1 and a precast concrete board 2; a plurality of slots 101 are formed in the upper surface of each orthogonal plywood 1 at intervals, and the step structures at the edge parts of the adjacent orthogonal plywood 1 are lapped and then fixedly connected by fasteners; embedding a reinforcing mesh connecting piece 3 and a precast concrete plate side embedded part 4 before pouring the precast concrete plate 2; adhesive is coated at the slot 101, and the reinforcing mesh connector 3 is inserted into the slot 101; the side embedded parts 4 of adjacent precast concrete plates are connected by adopting connecting pieces 5, and a cavity part is formed and fixed by pouring concrete.
Preferably, the fastener is a self-tapping screw 6.
Preferably, the length of the mesh reinforcement connectors 3 is 400mm to 500mm, the arrangement interval is 500mm to 700mm, the depth of embedding the precast concrete slab 2 is 50mm, and the depth of inserting the orthogonal plywood board 1 is not less than 30 mm.
Preferably, the positions of the slots 101 formed on the upper surface of the orthogonal plywood board 1 at intervals correspond to the pre-buried positions of the mesh reinforcement connectors 3, and the width of each slot 101 is 1mm to 2mm larger than the thickness of each mesh reinforcement connector.
Preferably, the pre-embedded steel bars 7 in the precast concrete slab 2 transversely pass through the steel bar mesh connecting piece 3.
Preferably, the embedded parts 4 on the side edges of the precast concrete slabs are welded with anchor bars 402 by adopting square steel pipes 401, the distance between the embedded parts is 100 mm-200 mm, and the embedded parts are spliced by adopting the connecting pieces 5 and then are blocked by adopting grouting.
Further, the length of the self-tapping screw 6 is the same as the thickness of the orthogonal bakelite plate 1, and the overlapping length of the adjacent orthogonal bakelite plates 1 is 50 mm.
The invention has the beneficial effects that:
1) enabling the orthogonal glued wood boards and the precast concrete boards to achieve the combined action, and connecting the adjacent orthogonal glued wood boards and the precast concrete boards by adopting connecting pieces to form a wood-concrete combined floor slab system;
2) compared with the traditional wood floor, the rigidity and the bearing capacity of the floor can be improved, and the vibration isolation and sound insulation performance of the floor is improved; compared with a wood grid-concrete composite floor, the two-way performance of the floor can be improved, and the advantages of wood and concrete can be better exerted.
Drawings
FIG. 1 is a plan view of an assembled wood-concrete composite floor system according to an embodiment of the present invention;
FIG. 2 is an elevation view of an assembled wood-concrete composite floor system according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating the connection of adjacent orthogonal plywood boards of the fabricated wood-concrete composite floor system according to the embodiment of the invention;
fig. 4 is a schematic view illustrating the connection of adjacent precast concrete plates of the fabricated wood-concrete composite floor system according to the embodiment of the present invention.
In the figure: the steel bar net-type prefabricated concrete slab comprises an orthogonal plywood 1, a prefabricated concrete slab 2, a steel bar net connecting piece 3, a prefabricated concrete slab side embedded piece 4, a prefabricated concrete slab side connecting piece 5, and an orthogonal plywood side connecting self-tapping screw 6, a slot 101, a square steel pipe 401 and an anchor bar 402.
Detailed Description
The invention is further described with reference to the following figures and specific examples.
As shown in fig. 1 to 4, the present invention provides an assembled wood-concrete composite floor system, which includes an orthogonal plywood 1, a precast concrete slab 2, a reinforcing mesh connector 3, a precast concrete slab side embedded part 4, a precast concrete slab side connector 5, and an orthogonal plywood side connection self-tapping screw 6.
Referring to fig. 1-2, a plurality of slots 101 are formed in the upper surface of each orthogonal plywood 1 at intervals, and the adjacent orthogonal plywood 1 are connected by self-tapping screws 6 after being lapped. The method comprises the steps of embedding a reinforcing mesh connecting piece 3 and a precast concrete plate side embedded piece 4 before pouring of a precast concrete plate 2, smearing adhesive at the slot 101 of the orthogonal plywood board 1, inserting the reinforcing mesh connecting piece 3 in the precast concrete plate 2 into the slot 101 of the orthogonal plywood board 1, and connecting the side edges of the adjacent precast concrete plates by using a connecting piece 5 to form the fabricated wood-concrete combined floor system.
Referring to fig. 1 to 2, the mesh reinforcement connectors 3 have a length of 400mm, an arrangement interval of 600mm, a depth of 50mm embedded in the precast concrete slab 2, and a depth of 30mm inserted into the orthogonal plywood sheet 1.
In this embodiment, the orthogonal plywood sheet 1 has slots 101 formed in the upper surface at intervals corresponding to the positions of the mesh reinforcement connectors 3, and the width of the slots 101 is 1mm greater than the thickness of the mesh reinforcement connectors.
Referring to fig. 2, the reinforcing bars 7 of the precast concrete slab 2 pass through the mesh reinforcement connectors 3.
Referring to fig. 4, the anchor bars 402 are welded on the embedded parts 4 on the side edges of the precast concrete slabs by square steel pipes 401, the distance between the embedded parts is 150mm, and the embedded parts are spliced by connecting pieces 5 and then are blocked by grouting.
Referring to fig. 3, the length of the self-tapping screw 6 connected to the side edge of the orthogonal plywood is the same as the thickness of the orthogonal plywood 1, and the overlapping length of the adjacent orthogonal plywood 1 is 50 mm.
In the embodiment, the prefabricated orthogonal laminated wood-concrete composite floor slab enables the orthogonal laminated wood boards and the prefabricated concrete slabs to achieve the combined action through the reinforcing mesh connecting pieces, and the adjacent orthogonal laminated wood boards and the prefabricated concrete slabs are connected through the connecting pieces to form a wood-concrete composite floor slab system; compared with a wood grid-concrete composite floor, the two-way performance of the floor can be improved, and the advantages of wood and concrete can be better exerted.
The above is only an alternative embodiment of the present invention, and those skilled in the art can make various changes or modifications on the basis of the above-mentioned embodiments without departing from the general concept of the present invention, and such changes or modifications should fall within the protection scope of the present invention.

Claims (7)

1. An assembled wood-concrete composite floor system, which is characterized in that:
comprises an orthogonal plywood (1) and a precast concrete plate (2);
a plurality of slots (101) are formed in the upper surface of each orthogonal plywood (1) at intervals, and the step structures at the edge parts of the adjacent orthogonal plywood (1) are lapped and then fixedly connected by fasteners;
embedding a reinforcing mesh connecting piece (3) and a side embedded part (4) of the precast concrete plate before the precast concrete plate (2) is poured;
adhesive is coated at the slot (101), and the reinforcing mesh connector (3) is inserted into the slot (101);
the side embedded parts (4) of adjacent precast concrete plates are connected by adopting connecting pieces (5) to form a cavity part, and the cavity part is fixed by pouring concrete.
2. The fabricated wood-concrete composite floor system according to claim 1, wherein: the fastener is a self-tapping screw (6).
3. The fabricated wood-concrete composite floor system according to claim 1, wherein: the length of the reinforcing mesh connecting piece (3) is 400 mm-500 mm, the arrangement interval is 500 mm-700 mm, the depth of the reinforcing mesh connecting piece embedded into the precast concrete plate (2) is 50mm, and the depth of the reinforcing mesh connecting piece inserted into the orthogonal glued wood plate (1) is not less than 30 mm.
4. The fabricated wood-concrete composite floor system according to claim 1, wherein: the positions of the slots (101) formed in the upper surface of the orthogonal plywood board (1) at intervals correspond to the pre-buried positions of the reinforcing mesh connectors (3), and the width of each slot (101) is 1-2 mm larger than the thickness of each reinforcing mesh connector.
5. The fabricated wood-concrete composite floor system according to claim 1, wherein: the embedded steel bars (7) in the precast concrete plates (2) transversely pass through the steel bar mesh connecting piece (3).
6. The fabricated wood-concrete composite floor system according to claim 1, wherein: the anchor bars (402) are welded on the embedded parts (4) on the side edges of the precast concrete slabs by adopting square steel pipes (401), the distance between the embedded parts is 100-200 mm, and the embedded parts are spliced by adopting connecting pieces (5) and then are blocked by adopting grouting.
7. The fabricated wood-concrete composite floor system according to claim 2, wherein: the length of the self-tapping screw (6) is the same as the thickness of the orthogonal bakelite plate (1), and the overlapping length of the adjacent orthogonal bakelite plates (1) is 50 mm.
CN202110451561.3A 2021-04-26 2021-04-26 Assembled wood-concrete combined floor system Pending CN113047495A (en)

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CN202110451561.3A CN113047495A (en) 2021-04-26 2021-04-26 Assembled wood-concrete combined floor system

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CN202110451561.3A CN113047495A (en) 2021-04-26 2021-04-26 Assembled wood-concrete combined floor system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115822153A (en) * 2023-01-08 2023-03-21 南京工业大学 Technology for improving impact sound and sound insulation performance of orthogonal glued wood floor and application

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CN110565860A (en) * 2019-09-27 2019-12-13 南京工业大学 connecting system of prefabricated wood-concrete combined structure
CN110714549A (en) * 2019-11-13 2020-01-21 南京林业大学 Prefabricated assembled orthogonal laminated wood concrete composite core tube structure
CN110761488A (en) * 2018-07-25 2020-02-07 迈瑞司（北京）抗震住宅技术有限公司 Wood-concrete composite beam
CN110777997A (en) * 2019-12-03 2020-02-11 南京工业大学 Dry-type connecting system of prefabricated wood-concrete composite structure
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WO2007091899A1 (en) * 2006-02-10 2007-08-16 Combino As Elements/slabs based on solid wood elements reinforced with concrete
CN103195204A (en) * 2013-03-29 2013-07-10 苏州皇家整体住宅系统股份有限公司 Wood-concrete composite structure
CN103603448A (en) * 2013-10-12 2014-02-26 南京工业大学 Fabricated reinforced concrete and wood composite floor
EP3202567A1 (en) * 2016-02-03 2017-08-09 Lignotrend GmbH & Co. KG Building element from wood concrete composite and method for producing it
CN106522437A (en) * 2016-12-22 2017-03-22 中冶京诚工程技术有限公司 Prefabricated assembling type light floor slab system
CN107989262A (en) * 2017-11-28 2018-05-04 湖南大学 Novel fabricated bamboo and wood-concrete combination beam
CN108505675A (en) * 2018-04-10 2018-09-07 上海市建筑科学研究院 A kind of novel combination type floor and its construction method
CN110761488A (en) * 2018-07-25 2020-02-07 迈瑞司（北京）抗震住宅技术有限公司 Wood-concrete composite beam
CN210713265U (en) * 2019-09-02 2020-06-09 南京林业大学 Notch connecting piece for wood-concrete composite board
CN110565860A (en) * 2019-09-27 2019-12-13 南京工业大学 connecting system of prefabricated wood-concrete combined structure
CN110714549A (en) * 2019-11-13 2020-01-21 南京林业大学 Prefabricated assembled orthogonal laminated wood concrete composite core tube structure
CN110777997A (en) * 2019-12-03 2020-02-11 南京工业大学 Dry-type connecting system of prefabricated wood-concrete composite structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115822153A (en) * 2023-01-08 2023-03-21 南京工业大学 Technology for improving impact sound and sound insulation performance of orthogonal glued wood floor and application

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