CN109138265A - Small-sized prefabricated straw concrete combined wall board of one kind and attaching method thereof - Google Patents
Small-sized prefabricated straw concrete combined wall board of one kind and attaching method thereof Download PDFInfo
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- CN109138265A CN109138265A CN201811050153.1A CN201811050153A CN109138265A CN 109138265 A CN109138265 A CN 109138265A CN 201811050153 A CN201811050153 A CN 201811050153A CN 109138265 A CN109138265 A CN 109138265A
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- 239000004567 concrete Substances 0.000 title claims abstract description 103
- 239000010902 straw Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims 1
- 235000014380 magnesium carbonate Nutrition 0.000 claims 1
- 239000001095 magnesium carbonate Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 15
- 238000009413 insulation Methods 0.000 abstract description 8
- 238000009417 prefabrication Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000011449 brick Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 10
- 230000002787 reinforcement Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 229920006327 polystyrene foam Polymers 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011178 precast concrete Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000003283 Pachira macrocarpa Nutrition 0.000 description 1
- 240000001085 Trapa natans Species 0.000 description 1
- 235000014364 Trapa natans Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000009165 saligot Nutrition 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
- E04C2/288—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material
- E04C2/2885—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and concrete, stone or stone-like material with the insulating material being completely surrounded by, or embedded in, a stone-like material, e.g. the insulating material being discontinuous
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Load-Bearing And Curtain Walls (AREA)
Abstract
本发明公开了一种轻小型预制秸秆混凝土复合墙板及其连接方法，包括秸秆板、轻质混凝土层、钢筋网架，所述秸秆板为中间夹心层，所述轻质混凝土层设置在所述秸秆板两侧，所述钢筋网架设置在所述轻质混凝土层中。本发明提供了一种适合我国村镇地区道路运输条件、施工水平和经济能力的抗震节能一体化结构，即轻小型秸秆混凝土预制复合墙板结构，用以减少甚至替代村镇建筑传统采用的土木砖石类结构，进而提升我国村镇建筑的抗震防灾能力和节能技术水平。该墙板结构是将轻小型秸秆混凝土预制复合墙板用作建筑的承重保温墙体和楼板，并通过工厂预制、现场拼装的方式形成整体房屋结构。
The invention discloses a light and small prefabricated straw concrete composite wallboard and a connection method thereof, comprising a straw board, a light-weight concrete layer and a steel mesh frame. The straw board is a middle sandwich layer, and the light-weight concrete layer is arranged at the On both sides of the straw board, the reinforced mesh frame is arranged in the light-weight concrete layer. The invention provides an integrated structure of earthquake resistance and energy saving suitable for road transportation conditions, construction level and economic capacity in villages and towns in my country, namely a light and small straw concrete prefabricated composite wall panel structure, which is used to reduce or even replace the civil bricks and stones traditionally used in village and town buildings. It can improve the earthquake resistance and disaster prevention ability and energy saving technology level of village and town buildings in my country. The wall panel structure uses light and small straw concrete prefabricated composite wall panels as the load-bearing thermal insulation wall and floor slab of the building, and forms an overall house structure through factory prefabrication and on-site assembly.
Description
Technical field
The invention belongs to building fields, are to utilize stalk and concrete prefabricated combined wall board specifically.
Background technique
For a long time, China's country building is essentially self-built housing, structure type based on traditional building Masonry-like Structures,
The problems such as generally existing anti-seismic performance is insufficient, power-saving technology falls behind.Therefore, for country building shock resistance deficiency and energy saving skill
Art backward situation, research and develop country building earthquake-proof energy-saving integral structure system, and accelerate its industrialization, engineering and standardize into
Journey is that current engineering circles are very paid close attention to and urgent problem to be solved.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of suitable China villages and small towns area road transport conditions, construction water
The earthquake-proof energy-saving integral structure of gentle economic capability, i.e., the small-sized prefabricated composite wallboard structure of straw concrete, to reduce
The even conventionally employed building Masonry-like Structures of substitution country building, so promoted China's country building Seismic Resistance And Disaster Reduction ability and
Power-saving technology is horizontal.The panel structure is the load bearing heat preserving wall that the prefabricated combined wall board of small-sized straw concrete is used as to building
And floor, and integral house structure is formed by way of prefabrication, on-site consolidation.
To realize the above-mentioned technical purpose, The technical solution adopted by the invention is as follows:
A kind of small-sized prefabricated straw concrete combined wall board, including stalk board, lightweight concrete layer, bar frame, institute
Stating stalk board is intermediate sandwich of layers, and the lightweight concrete layer setting exists in the stalk board two sides, the bar frame setting
In the lightweight concrete layer.
Stalk board is used as the intermediate laminboard layer of wallboard, has good heat insulation property, reaches national thermal insulation material regulation
It is required that.It is with magnesia cement (being formulated by magnesia magnesium chloride by quality 3:1) for cementing material, and crushed straw aggregate is filling
Material is prepared.Compared with the polystyrene foam plate (EPS) that traditional fabricated construction wallboard heat insulation layer uses, stalk board
With preferable heat insulation property and fire line, can be avoided polystyrene foam plate can burn when meeting with fire generate it is a large amount of
Phenomena such as toxic smog.Expand stalk answering under construction in addition, also helping using the stalk board that crushed straw aggregate is prepared
With promotion stalk comprehensive utilization rate reduces crop straw burning.
It is preferred as a kind of one kind of small-sized prefabricated straw concrete combined wall board of the invention, it further include two-way oblique steel
Muscle, the two-way oblique reinforcing bar pass through the stalk board, and both ends are fixedly connected with the bar frame respectively, and the bidirectional oblique
It is obliquely installed to reinforcing bar.
Two sides steel mesh will be attached fixation by two-way oblique reinforcing bar, so as to form space reinforcing bar grid structure, improve
The globality of wall plate member itself.
Preferred as a kind of another kind of small-sized prefabricated straw concrete combined wall board of the invention, the stalk board is with water chestnut
Magnesium cement is cementing material, and crushed straw aggregate is prepared for filler material.
Another as the small-sized prefabricated straw concrete combined wall board of one kind of the invention is preferred, the bar frame
Lightweight concrete layer is extended in end, reserves anchorage length.
Another as the small-sized prefabricated straw concrete combined wall board of one kind of the invention is preferred, and every cubic metre of lightweight is mixed
By weight percentage, the cement accounts for 430-480kg to solidifying soil layer, and stalk accounts for 2.5-3.6kg, and haydite accounts for 230-270kg, and cobble accounts for
490-520kg, sand account for 500-540kg, and water accounts for 120-160kg.
Preferred as a kind of another kind of small-sized prefabricated straw concrete combined wall board of the invention, the wallboard size takes
The 1/3~1/2 of the large scale prefabricated wallboard size of tradition.
Deadlight two sides of the present invention concrete layer use light straw haydite concrete, and take lesser prefabrication size into
Row design, realizes the small light of wallboard, and size, the self weight for further obviating fabricated construction prefabricated components are larger, right
Transport, installation requirement are high, are easy by villages and small towns regional economy level, transport routes, carrier vehicle, mechanical equipment, construction technology item
The technology barriers such as part restriction, expand the application range of fabricated construction, are conducive to push the integration of country building earthquake-proof energy-saving
And industrialization development.
Another as the small-sized prefabricated straw concrete combined wall board of one kind of the invention is preferred, the connection between reinforcing bar
All connected using spot welding.
Connection between reinforcing bar all uses spot welding to connect, first is that the fastness of reinforcing steel bar rack, improves wall plate member
Globality；Second is that considering that wall plate member carries out Prefabrication in factory, take mechanization spot welding mode compared to traditional people
Work improving bud grafting production efficiency is higher.
It is preferred as a kind of another kind of small-sized prefabricated straw concrete combined wall board of the invention, it is perpendicular in bar frame
Extend outside wallboard to reinforcing bar, and be inserted into foundation bottom and anchored, then pour base concrete, realizes wall and basis
Connection.
Small-sized precast concrete wall panel, the panel structure are to be used as the prefabricated combined wall board of small-sized straw concrete to build
The load bearing heat preserving wall and floor built after the completion of being prefabricated in the factory, need to be transported to construction site and be assembled, so as to form entirety
Building structure.Therefore, the connection between component is (such as: the connection between wall and wall, the connection between wall and floor, wall
Connection between body and basis) it is particularly critical to the anti-seismic performance of integral house structure.Thus, the present invention also provides a kind of walls
Plate makees the fixed connection method between wall and wall, floor.It is specific as follows:
It between wall and wall, is attached using square steel-pipe concrete constructional column, the square steel-pipe concrete structure
Make the same thickness of wall body of column section length, width；Transverse steel in the bar frame extends wall, reserves anchoring length
Degree, and pass through rectangular steel tube hole and anchor into rectangular steel tube, last casting concrete molding.
Connection method between wall and floor is attached using flute profile concrete filled steel tube collar tie beam, the groove profile steel pipe
The concrete that concrete collar tie beam includes groove profile steel pipe, is cast in the groove profile steel pipe, the groove profile steel pipe is along its length side
Fluted to opening up, the same slab thickness of the groove profile concrete filled steel tube collar tie beam depth of section, width is that thickness of wall body button removes floor
The lap of splice on wall；After wall and floor are overlapped, groove profile steel pipe is placed on to the top of wallboard, and groove court
On, the reserved anchorage length of the reinforcing bar in vertical reinforcement and floor in wall, and pass through channel-section steel pore hole and anchor into channel-section steel
Reinforcing bar inside pipe is finally formed from groove casting concrete.
In the present invention between wall and wall, square steel-pipe concrete constructional column, slot are respectively adopted between wall and floor
Shape concrete filled steel tube collar tie beam is attached, and gives full play to concrete crushing strength height and fashioned iron bending resistance is strong, is had good
The features such as elastoplasticity, can effectively improve building structure globality and bearing capacity, and without carrying out Site Template installation, have
Effect saves construction time and expense.
Compared with the conventionally employed building Masonry-like Structures of country building, small-sized prefabricated straw concrete composite wall is hardened
Structure combines lightweight concrete layer (mainly playing load-bearing effect) and stalk board (mainly playing function of heat insulation), collects antidetonation and section
Can be integrated, it can effectively solve the problem that the problems such as generally existing anti-seismic performance of building Masonry-like Structures is insufficient, power-saving technology falls behind.
Be mainly reflected in: (1) engineering practice shows that the concrete material that it is used has compared to the structure that the materials such as building masonry are formed
There is the features such as intensity is higher, and durability is more preferable, and anti-seismic performance is stronger；(2) experiments have shown that stalk board thermal coefficient is substantially 0.08
It between~0.12W/ (mK), is up to state standards and is not more than the regulation of 0.12W/ (mK) about thermal insulation material, have good
Thermal and insulating performance.In addition, its prefabrication for taking, site-assembled industrialized construction way are poured compared to conventional on-site
The mode of construction energy consumption build, built reduces by 20%~30%, and material loss reduces 60%, and building waste reduces 83%, can
Salvage material increases by 66%.
Compared to the large scale prefabricated wallboard used in urban skyscraper, small-sized prefabricated straw concrete combined wall board self weight
Gently, the scale of construction it is small, thus be convenient for component conveying and assembled in situ, be more suitable China villages and small towns area road transport condition, construct
Horizontal and economic capability.Such as: its lightweight concrete layer bulk density used is in 1900kg/m3 or so, only large scale prefabricated wallboard
4/5 or so of the normal concrete bulk density (about 2400kg/m3) of use, wallboard size are only the 1/3 of large scale prefabricated wallboard size
~1/2.
Detailed description of the invention
The present invention can be further illustrated by the nonlimiting examples that attached drawing provides；
Fig. 1 is the structural schematic diagram of the small-sized prefabricated straw concrete combined wall board of the present invention；
Fig. 2 is the cross-sectional view of the small-sized prefabricated straw concrete combined wall board of the present invention；
Fig. 3 annexation figure between wall and wall, foundation beam；
Fig. 4 annexation figure between wall and floor, foundation beam；
When Fig. 5 is that wall is connect with wall in "-" type, the structural schematic diagram of junction；
When Fig. 6 wall is connect with wall in L font, the structural schematic diagram of junction；
The structural schematic diagram of Fig. 7 wall and floor junction；
Fig. 8 is the structural schematic diagram of wall and foundation beam junction；
Main element symbol description is as follows:
Stalk board 1, bar frame 2, lightweight concrete layer 3, two-way oblique reinforcing bar 4, square steel-pipe concrete constructional column 5,
Flute profile concrete filled steel tube collar tie beam 6, wall 7, floor 8, foundation beam 9, rectangular steel tube 10, concrete 11, groove profile steel pipe 12.
Specific embodiment
In order to make those skilled in the art that the present invention may be better understood, with reference to the accompanying drawings and examples to this hair
Bright technical solution further illustrates.
A kind of small-sized prefabricated straw concrete combined wall board, which is that small-sized straw concrete is prefabricated multiple
Load bearing heat preserving wall and floor that wallboard is used as building are closed, and forms integral house by way of prefabrication, on-site consolidation
Structure, mainly (such as: the company between wall including the connection between the prefabricated combined wall board of small-sized straw concrete and wall plate member
Connect, the connection between wall and floor, the connection between wall and basis) two big component parts.It is specifically described as follows:
As shown in Figure 1, 2, small-sized prefabricated straw concrete combined wall board, mainly by the bar frame of stalk board and two sides
And lightweight concrete layer is constituted, intermediate to be fixed by two-way oblique reinforcing bar connection two sides bar frame is interspersed, wherein bar frame is perpendicular
The straight insertion lightweight concrete layer, two-way oblique reinforcing bar pass through stalk board, and both ends are fixedly connected with bar frame respectively, and
Two-way oblique reinforcing bar is obliquely installed.
Wherein, stalk board is used as the intermediate laminboard layer of wallboard, mainly plays function of heat insulation.It is with magnesia cement (by
Magnesia magnesium chloride is formulated by quality 3:1) it is cementing material, crushed straw aggregate is prepared for filler material.It is assembled with tradition
The polystyrene foam plate (EPS) that formula structural wall board heat insulation layer uses is compared, and stalk board has preferable heat insulation property
And fire line, can be avoided polystyrene foam plate can burn phenomena such as generating a large amount of toxic smogs when meeting with fire.
Wallboard two sides concrete layer is all made of light straw haydite concrete, and test match ratio is as shown in table 1.
1 light straw haydite concrete of table tests match ratio (unit: kg/m3)
It is measured through test, light straw haydite concrete volume-weighted average basically reaches lightweight substantially in 1900kg/m3 or so
The average strength of concrete density requirement, 28 days concrete anti-compressions is 28.9MPa, meets the concrete strength of supporting member
It is required that.In addition, the size of wallboard takes the 1/3~1/2 of the large scale prefabricated wallboard size of traditional fabricated construction, specific value is through designing
It calculates and determines.
The reinforced steel bar strength of two layers of steel mesh of stalk board, spacing, diameter and the intensity of concrete layer, thickness pass through structure meter
It calculates and determines.Two sides steel mesh will be attached fixation by two-way oblique reinforcing bar, so as to form space reinforcing bar grid structure, improve wall
The globality of board member itself.Connection between reinforcing bar all uses spot welding to connect, first is that the fastness of reinforcing steel bar rack, two
It is to consider that wall plate member carries out Prefabrication in factory, takes mechanization spot welding mode raw compared to traditional artificial improving bud grafting
It produces more efficient.
After the completion of small-sized precast concrete wall panel is prefabricated in the factory, construction site need to be transported to and assembled, with this shape
Integral building structure.Therefore, as shown in Figure 3,4, the connection between component (such as: the connection between wall and wall, wall with
Connection between floor, the connection between wall and basis) it is particularly critical to the anti-seismic performance of integral house structure.Premenstruum (premenstrua) grinds
Study carefully, following connection type is taken in the connection between small-sized precast concrete wall panel component respectively:
(1) as shown in Figure 5,6, it is attached between wall and wall using square steel-pipe concrete constructional column.Column section
The same thickness of wall body of length, width.Wall horizontal reinforcement reserves certain anchorage length, and pass through rectangular steel tube hole anchor into it is rectangular
In steel pipe, the connection between wall is realized in last casting concrete molding.As shown in Figure 5,6, the connection type of wall and wall
It is divided to two kinds, one is "-" types, and one is L-shaped.
(2) as shown in fig. 7, being attached between wall and floor using flute profile concrete filled steel tube collar tie beam.Groove profile steel pipe is mixed
The concrete that pedosphere beam includes groove profile steel pipe, is cast in groove profile steel pipe is coagulated, groove profile steel pipe offers recessed along its length direction
Slot, the same slab thickness of groove profile concrete filled steel tube collar tie beam depth of section, width are that wallboard thickness button removes overlap joint of the floor on wallboard
Length；After wallboard and floor are overlapped, groove profile steel pipe is placed on to the top of wallboard, and groove is upward, it is perpendicular in wallboard
The reserved anchorage length of reinforcing bar into reinforcing bar and floor, and pass through channel-section steel pore hole and anchor into flute profile steel duct reinforcing bar, most
It is formed afterwards from groove casting concrete.
(3) as shown in figure 8, wall and basis by anchor connection, i.e., wall vertical reinforcement is extended into foundation bottom
It is anchored, then pours base concrete, realize the connection of wall and basis.
It is additionally provided in the present embodiment, the specific production application method of small-sized straw concrete composite wallboard structure:
(1) it is calculated according to the design that building scheme carries out small-sized straw concrete composite wallboard structure.Through anti-seismic performance
Experimental study, the results showed that the anti-seismic performance and ordinary reinforced concrete shear wall of small-sized straw concrete composite wallboard structure
Structure is similar, thus can refer to entity shear wall structure and be designed calculating, determines that wallboard size, concrete strength, reinforcing bar are matched
Muscle information etc..Wherein, wallboard size includes height (length), width, thickness and the intermediate laminboard layer and two sides lightweight of wallboard
The thickness etc. of concrete layer；Reinforcing bar arrangement of reinforcement information includes bar diameter, spacing, intensity of each structural elements etc..
(2) prefabricated in factory's light and small concrete composite wallboard of progress according to design requirement.It include: first to be connected using mechanical electric welding
It connecing reinforcement fabrication into space bar frame, then using magnesia cement as cementing material, rice straw is that filler material prepares stalk board,
Light straw haydite concrete is poured in stalk board two sides afterwards, wall plate member is completed and makes and take maintenance measure.Wallboard is prefabricated
When the vertical reinforcement of bar frame and horizontal reinforcement need to be each extended over out wallboard, reserve certain anchorage length, be used for component
Between connect.
(3) construction site is transported to by light and small concrete composite wallboard is prefabricated, and carries out according to design requirement assembled, then will
Wall plate member reserved steel bar anchors into constructional column rectangular steel tube, respectively in collar tie beam flute profile steel pipe and in basis, then pours coagulation
Soil and maintenance, ultimately form small-sized prefabricated straw concrete composite wallboard structure.Wherein, the width of collar tie beam should be less than wall thickness
Degree, to guarantee to reserve certain lap of splice, convenient for being overlapped on wall when floor installation.Constructional column, collar tie beam and the concrete on basis
Strength grade is not less than the strength grade of concrete of precast wall body component.
Prefabricated straw concrete combined wall board small-sized to one kind provided by the invention and attaching method thereof carries out above
It is discussed in detail.The explanation of specific embodiment is merely used to help understand method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (10)
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| CN115234070A (en) * | 2022-03-19 | 2022-10-25 | 北京工业大学 | A kind of assembled one-shaped composite wallboard full-length force-transmitting steel plate self-tapping nail aggregate block connection structure and method |
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