CN106639095B - Rotary-cut board laminated wood-lightweight concrete combined floor system - Google Patents
Rotary-cut board laminated wood-lightweight concrete combined floor system Download PDFInfo
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- CN106639095B CN106639095B CN201611221908.0A CN201611221908A CN106639095B CN 106639095 B CN106639095 B CN 106639095B CN 201611221908 A CN201611221908 A CN 201611221908A CN 106639095 B CN106639095 B CN 106639095B
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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
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
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Abstract
A rotary cutting board laminated wood-lightweight concrete composite floor slab system belongs to the field of building structures. Comprises a rotary cutting plate glued wood grid, a shear connector, a self-tapping bolt and a lightweight concrete panel based on ceramsite. The rotary cutting plate glued wood grating consists of a wood grating and a wood panel at a certain interval, the shear connector is fixed with the panel through a fastening bolt, and after a bidirectional reinforcing mesh is arranged on the panel, ceramsite concrete is poured to form an LLC system. Compared with the common pure wood floor, the invention can effectively reduce the deformation, vibration and sound transmission of the floor; compared with the traditional reinforced concrete floor, the composite floor has lower self weight, and the structure bears smaller earthquake action and load transferred to the foundation in the earthquake. The rotary cut board laminated wood-lightweight concrete composite floor slab can be used for floors, floor slabs, landscape bridges and pedestrian paths.
Description
Technical Field
The invention relates to the field of building structures, in particular to a veneer lumber-lightweight concrete composite floor (LLC) system with rotary cut boards.
Background
Generally, the floor system in the building is composed of a ceiling, a common concrete floor and a surface layer, and in the wood structure building, a wood grating is generally adopted to form the wood floor system. The concrete floor structure has heavy dead weight and poor sound insulation and vibration isolation effects; and the pure wood floor has smaller rigidity and larger deformation. At present, the existing wood-concrete composite floor is composed of common concrete and solid wood, but the wood resource of China is in short supply, and the self weight of the composite floor adopting the common concrete is still larger.
Disclosure of Invention
The invention aims to provide a veneer lumber-lightweight concrete composite floor (LLC) system for a rotary cutting board aiming at the defects of the floor in the prior building.
The technical scheme of the invention is as follows: a rotary cut board laminated wood-lightweight concrete combined floor system is characterized by comprising a rotary cut board laminated wood grid and a lightweight concrete panel, wherein the rotary cut board laminated wood grid consists of a wood panel and a plurality of wood grids arranged at the bottom of the wood panel, and the wood grids are arranged in parallel and are uniformly distributed at the bottom of the wood panel; the upper surface of the wood panel is paved with a layer of damp-proof paper, GS waterproof material is coated on the damp-proof paper, a plurality of shear connectors are uniformly arranged on the edge of the wood panel, then a bidirectional reinforcing mesh is arranged on the GS waterproof material, and finally the lightweight concrete panel is poured.
The wood grating is characterized in that a trapezoidal notch with a large upper part and a small lower part is formed in the top of the wood grating, trapezoidal battens matched with the trapezoidal notches are arranged between the wood panel and the wood grating, and the trapezoidal notches are arranged in the trapezoidal battens.
The top of the trapezoid batten is connected with the bottom of the wood panel through PF glue, and the trapezoid batten is inserted into the trapezoid notch in the top of the wood grid after the PF glue is coated on the two inclined planes and the bottom of the trapezoid batten respectively.
The moisture-proof paper has moisture-proof and breathable functions and is laid on the upper surface of the wood panel through wood glue.
The GS waterproof material is a two-component waterproof material formed by combining liquid materials and powder materials.
The liquid material consists of acrylic emulsion and an auxiliary agent, and the powder material consists of cement, graded sand, fly ash and mineral powder.
The lightweight concrete panel is made of ceramsite concrete and consists of cement, water, sand, ceramsite, fly ash, mineral powder and an additive.
The ceramsite concrete comprises the following components in percentage by mass: water: sand: ceramsite: fly ash: mineral powder: additive =270:150:704:442:100:31: 7.62.
The shear connector consists of a rectangular base connected with a wood panel and a hollow square upright post arranged above the base; the contact part of the rectangular base and the wood panel is provided with a bolt hole, and the shear connector is fixed with the wood panel through a self-tapping bolt.
The rotary cutting board veneer wood grid is made of poplar wood.
The tensile strength of the rotary cutting plate laminated wood grating is 30-50 MPa, the compressive strength of the lightweight concrete panel is 30-40 MPa, the surface is smooth after casting molding, and the color is uniform.
The invention comprises a veneer plywood grid of a rotary cutting plate, a shearing resistant connecting piece, a general connecting piece (a self-tapping bolt) and a lightweight concrete panel based on ceramsite. The rotary cutting plate glued wood grating consists of a wood grating and a wood panel at a certain interval, the shear connector is fixed with the panel through a fastening bolt, and after a bidirectional reinforcing mesh is arranged on the panel, ceramsite concrete is poured to form an LLC system. The bottom of the rotary cutting board glued wood panel is at a certain interval, small and big trapezoidal battens are adhered by PF glue, and the top of the wood grid is provided with a notch with the same size as the trapezoidal battens.
The rotary cutting board veneer is a high-strength structural material which is formed by sequentially assembling along the grain direction, obliquely connecting, lapping or butting the end parts, then performing processes such as gluing, hot pressing and the like, has the advantages of quality, physical and mechanical properties, accurate size and flatness superior to other structural materials, is convenient to process, can be sawed, planed, chiseled, tenoned, nailed and the like, has higher fire resistance than steel products after flame retardant treatment, and has good weather resistance.
The invention selects the moisture-proof paper and the GS waterproof material, can effectively prevent the water of the cast-in-place concrete from permeating into the rotary cut board veneer, can ensure the good bonding performance of the rotary cut board veneer and the lightweight concrete board, and can fully exert the bending resistance of the rotary cut board veneer and the compression resistance of the lightweight concrete board to form a combined structure with good rigidity, high strength, light dead weight, good fireproof performance and sound insulation performance.
Compared with the common pure wood floor, the invention can effectively reduce the deformation, vibration and sound transmission of the floor; compared with the traditional reinforced concrete floor, the composite floor has lower self weight, and the structure bears smaller earthquake action and load transferred to the foundation in the earthquake. The rotary cut board laminated wood-lightweight concrete composite floor slab can be used for floors, floor slabs, landscape bridges and pedestrian paths.
The invention conforms to the development strategy of national energy conservation and emission reduction and building industrialization, and can effectively reduce the deformation, vibration and sound transmission of the floor compared with a pure wood floor. Compared with a concrete floor, the concrete floor has the advantages of light structure dead weight, high bearing capacity, sound insulation and vibration isolation, and easiness in construction. The wood resources of China are in short supply, and the veneer of the rotary cut board is a building material processed by utilizing fast-growing woods of China, has the characteristics of saving natural resources and saving cost, and can bring considerable economic benefits. The invention has the functions of light weight, high strength, sound insulation, vibration isolation, moisture prevention and the like, can replace concrete floors and wood floors in buildings, is ecological and environment-friendly, is comfortable to use, and is easy to construct.
Drawings
FIG. 1 is a schematic view of an integral floor structure of the present invention;
FIG. 2(a) is a perspective view of the wood grid of the present invention;
FIG. 2(b) is a side view of the wood grid of the present invention;
FIG. 3(a) is a perspective view of a trapezoidal shaped batten of the present invention;
FIG. 3(b) is a side view of the trapezoidal shaped batten of the present invention
FIG. 4 is a schematic view of a wood panel according to the present invention;
FIG. 5 is a schematic view of a shear connector according to the present invention;
FIG. 6 is a schematic view of a general attachment (self-tapping bolt) of the present invention;
in the figure: 1 wood grid, 2 trapezoidal battens, 3 wood panels, 4 moistureproof paper, 5 GS waterproof materials, 6 shear connectors, 7 self-tapping bolts, 8 bidirectional reinforcing mesh, 9 light concrete panels, 10 trapezoidal notches, 11 rectangular bases and 12 hollow square columns.
Detailed Description
As shown in fig. 1, a rotary cut plywood-lightweight concrete composite floor (LLC) system comprises a rotary cut plywood-plywood grid, small-top and large-bottom trapezoidal battens 2, shear connectors 6, general connectors 7 (self-tapping bolts), bidirectional reinforcing mesh 8, and ceramsite concrete panels 9.
The veneer wood grating of rotary cutting board comprises wood panel 3, wood grating 1, and 1 top of wood grating is opened has trapezoidal notch 10 big-end-up, and 2 section sizes of trapezoidal stuff are with the trapezoidal notch phase-match of wood grating 1 (or the wood grating top is opened has the notch that slightly is less than trapezoidal stuff size, trapezoidal stuff and trapezoidal notch interference fit promptly), and the length of trapezoidal stuff is the same with the minor face of wood panel 3.
The top of the trapezoidal battens 2 is connected with the bottom of the wood panel 3 by PF glue, and the trapezoidal battens 2 are uniformly arranged at the bottom of the wood panel 3; after PF glue is coated on the other three surfaces (two waist surfaces and the bottom) of the trapezoidal batten 2, the trapezoidal batten 2 is inserted into the trapezoidal notch at the top of the wood grating 1.
The moisture-proof paper 4 with moisture-proof and ventilation functions is laid on the surface of the wood panel 3 through wood glue, the moisture-proof paper 4 is coated with GS (soil moisture) waterproof materials 5, the shear connectors 6 and the wood panel 3 are uniformly connected and fixed through common connectors (fastening bolts) 7, then the bidirectional reinforcing mesh 6 is arranged, and ceramsite concrete 7 is poured.
The GS waterproof material 5 is a two-component waterproof material formed by combining a liquid material and a powder material, wherein the liquid material comprises acrylic emulsion and an auxiliary agent, the powder material comprises cement (P.O 42.5.5 ordinary portland cement), graded sand, fly ash and mineral powder, and the performance indexes of the graded sand are shown in the following table:
the lightweight concrete panel 9 is made of ceramsite concrete and consists of cement, water, sand, ceramsite, fly ash, mineral powder and an additive (a composite anti-cracking thickening air-entraining water reducing agent). The ceramsite concrete comprises the following components in percentage by mass: water: sand: ceramsite: fly ash: mineral powder: additive =270:150:704:442:100:31:7.62, as shown in the following table:
the shear connector 6 is composed of a rectangular base 11 connected with a wood panel and a hollow square upright post 12 arranged above the base; the contact part of the rectangular base and the wood panel is provided with a bolt hole, and the shear connector is fixed with the wood panel through a self-tapping bolt 7. After the shear connector is installed on the edge of the wood panel, light concrete is poured, and the concrete can enter the hollow square upright post cavity, so that the shear performance of the shear connector is further enhanced. The tensile strength of the rotary cutting plate laminated wood grating is 30-50 MPa, the compressive strength of the lightweight concrete is 30-40 MPa, the surface is smooth after casting molding, and the color is uniform.
At present, the composite floor is basically made of common concrete and solid wood, but the wood resources of China are in short supply, the rotary cut board veneer lumber is a building material which is processed by fast-growing woods of China and has stable quality, small material variability, uniform strength, fire resistance, insect resistance and corrosion resistance, the rotary cut board veneer lumber can be combined with light concrete, the advantages of the two materials can be fully exerted, the defect of a mixed floor slab in the existing building is overcome, and a novel composite floor slab is formed.
Claims (1)
1. A rotary-cut board laminated wood-lightweight concrete combined floor system is characterized by comprising a rotary-cut board laminated wood grating and a lightweight concrete panel, wherein the rotary-cut board laminated wood grating is a poplar wood; the rotary cutting board glued wood grating consists of a wood panel (3) and a plurality of wood gratings (1) arranged at the bottom of the wood panel, wherein the wood gratings are arranged in parallel and are uniformly distributed at the bottom of the wood panel; a layer of moisture-proof paper (4) is laid on the upper surface of the wood panel, GS waterproof materials (5) are coated on the moisture-proof paper, a plurality of shear connectors (6) are uniformly arranged on the edge of the wood panel, then a bidirectional reinforcing mesh (8) is arranged on the GS waterproof materials, and finally a lightweight concrete panel (9) is poured;
the moisture-proof paper (4) has moisture-proof and air-permeable functions and is laid on the upper surface of the wood panel (3) through wood glue, the GS waterproof material (5) is a two-component waterproof material formed by combining a liquid material and a powder material, the liquid material comprises an acrylic emulsion and an auxiliary agent, the powder material comprises cement, graded sand, fly ash and mineral powder, the fineness modulus of the graded sand is 2.6, the graded area is an area II, the mud content is 0.4%, the mud block content is 0.4%, and the apparent density is 2580kg/m3The bulk density is 1480kg/m3Bulk density porosity 43%;
the top of the wood grating (1) is provided with a trapezoidal notch (10) with a large upper part and a small lower part, a trapezoidal batten (2) matched with the trapezoidal notch is arranged between the wood panel and the wood grating, and the trapezoidal batten is arranged in the trapezoidal notch; the top of the trapezoidal batten (2) is connected with the bottom of the wood panel (3) through PF glue, and the trapezoidal batten is inserted into a trapezoidal notch (10) at the top of the wood grating after PF glue is coated on two inclined planes and the bottom of the trapezoidal batten respectively;
the lightweight concrete panel (9) is made of ceramsite concrete and consists of cement, water, sand, ceramsite, fly ash, mineral powder and an additive; the ceramsite concrete comprises the following components in percentage by mass: water: sand: ceramsite: fly ash: mineral powder: the admixture is 270:150:704:442:100:31: 7.62;
the shear connector (6) is composed of a rectangular base (11) connected with a wood panel and a hollow square upright post (12) arranged above the base; the contact part of the rectangular base and the wood panel is provided with a bolt hole, and the shear connector is fixed with the wood panel through a self-tapping bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611221908.0A CN106639095B (en) | 2016-12-27 | 2016-12-27 | Rotary-cut board laminated wood-lightweight concrete combined floor system |
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| CN201611221908.0A CN106639095B (en) | 2016-12-27 | 2016-12-27 | Rotary-cut board laminated wood-lightweight concrete combined floor system |
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| CN106639095A CN106639095A (en) | 2017-05-10 |
| CN106639095B true CN106639095B (en) | 2020-01-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111364666B (en) * | 2020-04-09 | 2022-03-08 | 华侨大学 | Construction method of raw soil-laminated wood composite floor slab |
| CN113187139A (en) * | 2021-03-04 | 2021-07-30 | 上海应用技术大学 | Orthogonal laminated wood-concrete composite floor slab and reinforcing method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063471A (en) * | 1992-01-31 | 1992-08-12 | 淄博市新材料研究所 | The composition of light weight concrete and purposes |
| CN2156228Y (en) * | 1993-05-15 | 1994-02-16 | 张玉珉 | Light energy-saving weight support plate for building |
| CN1096501A (en) * | 1993-06-18 | 1994-12-21 | 郭成正 | Superlight concrete |
| CN101003431A (en) * | 2006-01-19 | 2007-07-25 | 宁波平海建材有限公司 | Broken stone type haydites of book structure in use for lightweight concrete, and manufacturing process |
| CN201660990U (en) * | 2010-03-12 | 2010-12-01 | 昆明理工大学 | Reinforced concrete-wood combined floor slab |
| CN103373842A (en) * | 2012-04-17 | 2013-10-30 | 都江堰科普达新型材料有限公司 | Cement-based waterproof coating |
| CN202706320U (en) * | 2012-07-29 | 2013-01-30 | 吕泽明 | Environment-friendly light energy-saving composite board |
| CN105178488A (en) * | 2015-08-04 | 2015-12-23 | 华东建筑设计研究院有限公司 | Steel plate reinforced composite floor slab with detachable reinforcing components |
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