CN114607081A - Assembled modular wood-ice composite floor slab and construction and assembly method thereof - Google Patents
Assembled modular wood-ice composite floor slab and construction and assembly method thereof Download PDFInfo
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- CN114607081A CN114607081A CN202210232362.8A CN202210232362A CN114607081A CN 114607081 A CN114607081 A CN 114607081A CN 202210232362 A CN202210232362 A CN 202210232362A CN 114607081 A CN114607081 A CN 114607081A
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- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000010276 construction Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000002023 wood Substances 0.000 claims abstract description 144
- 229910000831 Steel Inorganic materials 0.000 claims description 209
- 239000010959 steel Substances 0.000 claims description 209
- 239000000835 fiber Substances 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 17
- 230000007547 defect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 82
- 238000001125 extrusion Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000771208 Buchanania arborescens Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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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
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- 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
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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
- E04C2/30—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
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/50—Self-supporting slabs specially adapted for making floors ceilings, or roofs, e.g. able to be loaded
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Mechanical Engineering (AREA)
Abstract
The invention discloses an assembled modular wood-ice composite floor slab and a construction and assembly method thereof. The grooves which are intersected vertically and horizontally are formed in the upper layer wood board and the lower layer wood board, so that the defect that the cementing force between the wood boards and ice is insufficient can be overcome, the engaging force between the wood boards and ice bodies is increased, and the bonding slippage of the ice and the wood in any direction in a horizontal plane can be resisted; the invention greatly simplifies the site construction, uses local materials and has simple splicing method.
Description
Technical Field
The invention relates to a composite floor slab, in particular to an assembled modular wood-ice composite floor slab and a construction and assembly method thereof.
Background
In scientific research stations in south or north poles, in order to avoid environmental pollution and facilitate construction, concrete is not poured generally in extreme environments, and a profile steel structure is adopted instead.
The steel material can be subjected to cold brittleness in a cold environment, and the brittleness of the material is obviously increased. In addition, the heat conducting property of the steel bars is excellent, and a large number of steel bars can form cold bridges in a building and are not beneficial to heat preservation. Indoor hot air is diffused to outdoor cold environment in a large amount through reinforcing steel bars, and indoor energy is wasted.
The steel bar is acted by sea wind and seawater in coastal environment for a long time, and the use and later maintenance of the coating layer can form great challenges. In addition, the steel bars are transported to the south pole or the north pole from China, so that great cost is consumed, a large amount of space of a transport ship is occupied, and the steel bars are heavy, so that construction in polar environments is not facilitated.
In order to ensure the quality and precision of the prefabricated parts, the traditional steel structure needs to be pre-assembled in a factory after being prefabricated, and then disassembled, shipped and transported to the polar region after being assembled without errors. However, the transportation and hoisting process is difficult to ensure that no plastic deformation is generated on the components, and the polar environment is obviously different from the factory pre-assembly environment, so that even if the factory can pre-assembly, the smooth assembly of the polar environment cannot be completely ensured.
Therefore, it is desired to solve the above problems.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a splicing modular wood-ice composite floor slab capable of resisting bonding slippage of ice and wood in any direction in a horizontal plane.
The second purpose of the invention is to provide a construction method of the assembled modular wood-ice composite floor slab;
the third purpose of the invention is to provide a splicing method of the spliced modular wood-ice composite floor slab.
The technical scheme is as follows: in order to achieve the purpose, the invention discloses an assembled modular wood-ice composite floor slab, which comprises a shell, an ice body and a steel fiber layer, wherein the shell is formed by enclosing an upper layer wood board, a lower layer wood board and end part wood boards to form a closed cavity, the ice body is filled in the cavity of the shell and is solidified, the steel fiber layer is positioned in the ice body and is placed on the inner side of the lower layer wood board, the inner side surface of the upper layer wood board is provided with upper-layer grooves which are intersected in a longitudinal and transverse mode, the inner side surface of the lower layer wood board is provided with lower-layer grooves which are intersected in the longitudinal and transverse mode, and the ice body is filled in each of the upper-layer grooves and the lower-layer grooves. The upper layer wood board and the lower layer wood board are provided with the criss-cross grooves, so that the defect that the cementing force between the wood boards and ice is insufficient can be overcome, and the engaging force between the wood boards and ice bodies is increased; the normal stress formed by mutual extrusion of the groove and the ice can ensure that the two materials work together, and the assumption of a flat section is ensured when the materials are bent; meanwhile, the two orthogonal normal stresses can be decomposed into two groups of orthogonal normal stresses in any direction in the horizontal plane, and the bonding slippage of ice and wood in any direction in the horizontal plane can be resisted.
The upper layer wood board is connected with the end part wood board through a steel chisel, the steel chisel sequentially penetrates through the end part wood board and the upper layer wood board from the outer side of the end part wood board, and part of the steel chisel is exposed out of the end part wood board.
Preferably, the upper layer of wood board is internally provided with T-shaped steel used for propping against a steel chisel, wherein the end part of the steel chisel props against the joint position of the flange and the web of the T-shaped steel.
Furthermore, the lower layer plank is connected with the end plank through the drill rod, the drill rod penetrates through the end plank and the lower layer plank from the outer side of the end plank in sequence, and part of the drill rod is exposed out of the end plank.
Further, the lower-layer wood board is internally provided with T-shaped steel used for propping against a steel chisel, wherein the end part of the steel chisel props against the joint position of the flange and the web of the T-shaped steel.
Preferably, the steel fiber layer comprises a steel fiber body formed by welding a plurality of steel fibers which are arranged in sequence.
Furthermore, the steel fiber body comprises a steel fiber surface which is parallel to the lower layer plank and is shaped like a Chinese character 'mi' and vertical steel fibers which are vertically arranged at the center of the steel fiber surface in an up-and-down symmetrical mode.
Further, the steel fiber body comprises a horizontal steel fiber surface which is parallel to the lower-layer plank and is in a shape of a Chinese character 'mi' and a vertical steel fiber surface which is perpendicular to the lower-layer plank and is in a shape of a Chinese character 'mi'.
The invention discloses a construction method of an assembled modular wood-ice composite floor slab, which comprises the following steps:
(1) prefabricating an upper-layer wood board, a lower-layer wood board and an end-part wood board, forming longitudinally and transversely crossed grooves on one side face of the upper-layer wood board and one side face of the lower-layer wood board, and disassembling the upper-layer wood board, the lower-layer wood board and the end-part wood board after pre-assembling in a factory;
(2) prefabricating T-shaped steel and a steel chisel, and sharpening the pressed side face of the T-shaped steel;
(3) welding a plurality of finished single steel fibers into a steel fiber body;
(4) designing a small ice block unit template according to the size of the steel fibrous body, wherein the small ice block unit template comprises a bottom plate, four side plates, a partition plate arranged in parallel with the bottom plate and a spring positioned between the partition plate and the bottom plate, the partition plate can move up and down along the side plates, and the spring is in a free state in an initial state; the bottom plate and the four side plates are both provided with small holes matched with the steel fibers;
(5) transporting the prefabricated upper-layer wood boards, lower-layer wood boards, end wood boards, T-shaped steel, steel rods, steel fiber bodies and small ice block unit templates to a polar environment;
(6) pressing the sharpened side of the T-shaped steel into the upper-layer wood board and the lower-layer wood board by using external force;
(7) connecting end part boards on three sides with an upper layer board and a lower layer board through steel rods to form a template, wherein the end parts of the steel rods are abutted against the joint position of the flange and the web of the T-shaped steel, and the tail parts of the steel rods are exposed outside the end part boards;
(8) penetrating the steel fiber body into the small hole of the small ice block unit template, wherein the steel fiber body is higher than the upper surface of the side plate;
(9) taking clean ice in a polar environment, heating the ice into liquid water, and pouring the water into the small ice block unit template;
(10) forming small ice blocks with steel fibrous bodies after water is solidified, wherein the steel fibrous bodies protrude out of the upper surfaces and the side surfaces of the small ice blocks, removing the mold and taking out, and roughening six surfaces of the small ice blocks;
(11) arranging the small ice blocks in sequence on the inner side surface of the lower-layer wood board in the template;
(12) taking clean ice in a polar environment, heating the ice to liquid water, pouring a proper amount of water into the cavity of the template, and solidifying the water into ice;
(13) connecting the end part wood board on the last side with the upper layer wood board and the lower layer wood board through a steel chisel, wherein the end part of the steel chisel is propped against the joint position of the flange and the web of the T-shaped steel, and the tail part of the steel chisel is exposed outside the end part wood board; and forming the wood ice composite floor standard unit.
The invention discloses an assembling method of an assembled modular wood-ice composite floor slab, which comprises the following steps:
(1) taking down the steel chisel of a standard unit of the wood-ice composite floor slab, and reserving a hole left after the steel chisel is pulled out;
(2) penetrating the steel drill of the other wood-ice composite floor slab standard unit into the hole left after the steel drill is pulled out in the step (1);
(3) repeating the step (1) and the step (2), and continuously assembling the wood-ice composite floor slab standard units;
(4) and cutting off the steel chisel protruding from the standard unit of the wood-ice composite floor slab at the end part.
Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:
(1) the upper layer wood board and the lower layer wood board are provided with the criss-cross grooves, so that the defect that the cementing force between the wood boards and ice is insufficient can be overcome, and the engaging force between the wood boards and ice bodies is increased; the normal stress formed by mutual extrusion of the groove and the ice can ensure that the two materials work together, and the assumption of a flat section is ensured when the materials are bent; meanwhile, the two orthogonal normal stresses can be decomposed into two groups of orthogonal normal stresses in any direction in the horizontal plane, so that the bonding slippage of ice and wood in any direction in the horizontal plane can be resisted;
(2) when the composite floor slab is damaged and needs to be reconstructed or moved, the wood-ice composite floor slab can rapidly realize the recycling of raw materials, and the wood can almost realize 100 percent of circulation; meanwhile, the wood belongs to an environment-friendly material, so that the environment pollution to the polar environment is avoided, and the wood can prevent ice from being directly exposed to sunlight and can prevent the ice from melting to a certain extent in the extreme daytime environment;
(3) the construction method greatly simplifies the site construction, uses local materials, does not need to transport a large amount of heavy steel to the south pole or the north pole from the material origin place, and only needs to transport light wood and a small amount of steel;
(4) the assembling method is simple, the steel chisel can simply and effectively connect the adjacent floor slabs, and the steel chisel and the wood can generate normal stress after being deformed, so that the bending moment and the shearing force can be effectively transmitted;
(5) the T-shaped steel is arranged to abut against the steel chisel, so that the steel chisel can smoothly penetrate into another standard floor slab unit to complete splicing, and the problems that the steel chisel can only penetrate into one standard floor slab unit but cannot penetrate into another steel chisel reserved hole and the like due to uncontrollable difference among all wood in parameters such as strength, Poisson ratio, linear expansion coefficient and the like and expansion and shrinkage of various materials in polar environment are effectively avoided;
(6) the steel fiber layer is arranged, so that compared with a pure ice plate, the ice-free ice plate can avoid brittle damage caused by crack development, crack development can be limited due to the existence of the steel fiber, and steel bars can be replaced by the steel fiber;
(7) according to the construction method, the six surfaces of the small ice block units are roughened, so that weak surfaces formed by insufficient adhesive force of new and old ice surfaces can be prevented; the vertical steel fibers protruding out of the small ice blocks further greatly enhance the mechanical biting force of the new ice surface and the old ice surface;
(8) when the floor slab support is difficult to achieve the fixed connection or the effect of approaching the fixed connection, the floor slab is close to the stress state of the four simply-supported sides when stressed; under the stress state, the lower part of the floor slab is in a pulled state, ice belongs to a brittle material, once the ice is pulled and cracks of brittle failure are generated, no sign is generated during cutting failure, and the deformation is small; therefore, the small ice block units containing the steel fibers are arranged on the lower layer of the wood board, when the cracks pass through the steel fibers, the steel fibers can effectively limit the cracks from developing, and the floor slab is prevented from being damaged brittleness;
(9) in the construction method, the partition plate capable of moving up and down is arranged in the small ice block template, and the partition plate is placed on the spring, so that the steel fiber is prevented from being jacked up and deformed when water is solidified and expanded, and the water can be expanded in the up and down directions simultaneously when the water is solidified and expanded under the action of the spring and the movable partition plate, and the unilateral expansion deformation is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of a middle and upper layer of wood panel according to the present invention;
FIG. 3 is a cross-sectional view of a middle and upper layer wood panel according to the present invention;
FIG. 4 is a schematic structural view of a drill rod according to the present invention;
FIG. 5 is a schematic structural view of a T-shaped steel according to the present invention;
FIG. 6 is a schematic structural view of the T-section steel in a state of being pressed into the side surface and sharpened according to the present invention;
FIG. 7 is a schematic view of the present invention with the drill steel abutting against the T-section steel;
FIG. 8 is a schematic diagram of the assembly of the composite floor slab of the present invention;
FIG. 9 is a schematic structural view of a steel fiber body according to the present invention;
FIG. 10(a) is a top view of a small ice cube unit template of the present invention;
FIG. 10(b) is a cross-sectional view of a small ice cube unit template in accordance with the present invention;
FIG. 11(a) is a schematic structural view of the T-shaped steel being pressed into the upper layer wood board in the present invention;
FIG. 11(b) is a schematic structural view of the T-section steel pressed into the lower plank in the present invention;
FIG. 12 is a schematic view of the structure of the template of the present invention;
FIG. 13(a) is a top view of a steel fiber body placed in a small ice cube unit template in the present invention;
FIG. 13(b) is a sectional view of a steel fiber body put into a small ice cube unit mold plate in the present invention;
FIG. 14 is a schematic view of the water in the ice cube unit templates solidifying to form ice bodies in accordance with the present invention;
FIG. 15(a) is a side view of a small ice cube with steel fiber mass in the present invention;
FIG. 15(b) is a top view of a small ice cube with steel fiber mass in the present invention;
FIG. 16 is a schematic view showing the structure of small ice blocks with steel fiber bodies placed in the template according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
As shown in fig. 1, the assembled modular wood-ice composite floor slab of the invention comprises an upper layer wood board 1, a lower layer wood board 2, an end part wood board 3, an ice body 4, a drill steel 5, a T-shaped steel 6 and a steel fiber body 7, wherein the upper layer wood board 1, the lower layer wood board 2 and the end part wood board 3 enclose a shell with a closed cavity, an upper layer groove 101 which is intersected in a longitudinal and transverse direction is arranged on the inner side surface of the upper layer wood 1, a lower layer groove 201 which is intersected in a longitudinal and transverse direction is arranged on the inner side surface of the lower layer wood 2, and the ice body 4 is filled in the cavity of the shell, the upper layer groove 101 and the lower layer groove 201, as shown in fig. 2 and fig. 3. The upper layer wood board and the lower layer wood board are provided with the criss-cross grooves, so that the defect that the cementing force between the wood boards and ice is insufficient can be overcome, and the engaging force between the wood boards and ice bodies is increased; the normal stress formed by mutual extrusion of the groove and the ice can ensure that the two materials work together, and the assumption of a flat section is ensured when the materials are bent; meanwhile, the two orthogonal normal stresses can be decomposed into two groups of orthogonal normal stresses in any direction in the horizontal plane, and the bonding slippage of ice and wood in any direction in the horizontal plane can be resisted.
As shown in fig. 4, 5 and 7, T-shaped steel 6 for supporting a steel chisel is arranged in the upper layer wood board 1, the upper layer wood board 1 is connected with the end wood board 3 through the steel chisel 5, the end of the steel chisel 5 sequentially penetrates through the end wood board 3 and the upper layer wood board 1 from the outer side of the end wood board 3, the end of the steel chisel 5 supports against the joint position of the flange and the web of the T-shaped steel 6, the tail of the steel chisel 5 is exposed outside the end wood board, namely, part of the steel chisel is exposed outside the end wood board 3, and therefore splicing of adjacent composite floors is facilitated. Be provided with the T shaped steel 6 that is used for propping against the drill rod in the plank 2 of lower floor, lower floor plank 2 is connected through drill rod 5 with tip plank 3, the tip of drill rod 5 passes tip plank 3 and lower floor plank 2 in proper order from the 3 outsides of tip plank, and the tip of drill rod 5 supports on the 6 edges of a wing of T shaped steel and web handing-over position department, the afterbody of drill rod 5 exposes in the outside of tip plank, 3 outsides of tip planks expose partial drill rod promptly, the adjacent composite floor of being convenient for accomplishes the concatenation. Even if the wood is the same type and the steel chisel is drawn out, holes can be reserved, uncontrollable differences exist among all the wood in the parameters such as strength, Poisson's ratio, linear expansion coefficient and the like, and the expansion and shrinkage problems of various materials can occur in polar environment, so that the situation that the steel chisel can only penetrate into one standard floor slab unit but cannot penetrate into another steel chisel reserved hole can occur; the T-shaped steel is arranged to abut against the steel chisel, so that the steel chisel can smoothly penetrate into another standard unit of the floor slab to smoothly complete splicing.
The steel fiber layer is arranged above the inner side surface of the lower wood board 2 and is positioned in the ice body 4. The steel fiber layer comprises a steel fiber body 7 which is formed by welding a plurality of steel fibers and is arranged in sequence. The steel fiber body 7 comprises a steel fiber surface which is parallel to the lower layer of wood board and is shaped like a Chinese character 'mi', and vertical steel fibers which are vertically and symmetrically arranged at the center of the steel fiber surface; or the steel fiber body 7 comprises a horizontal steel fiber surface which is parallel to the lower layer of the wood board and is in a shape of a Chinese character 'mi' and a vertical steel fiber surface which is perpendicular to the lower layer of the wood board and is in a shape of a Chinese character 'mi'.
The invention discloses a construction method of an assembled modular wood-ice composite floor slab, which comprises the following steps:
(1) prefabricating an upper-layer wood board, a lower-layer wood board and an end-part wood board, forming criss-cross grooves on one side surface of the upper-layer wood board and one side surface of the lower-layer wood board, and pre-assembling the upper-layer wood board, the lower-layer wood board and the end-part wood board in a factory and then removing the upper-layer wood board, the lower-layer wood board and the end-part wood board;
(2) prefabricating T-shaped steel and a steel chisel, and sharpening the pressed side of the T-shaped steel as shown in FIG. 6;
(3) welding a plurality of finished single steel fibers into a steel fiber body, as shown in fig. 9;
(4) designing a small ice block unit template according to the size of a steel fibrous body, wherein the small ice block unit template comprises a bottom plate 8, four side plates 9, a partition plate 10 arranged in parallel with the bottom plate and a spring 11 positioned between the partition plate and the bottom plate, the partition plate 10 can move up and down along the side plates 9, and the spring 11 is in a free state in an initial state; the bottom plate 8 and the four side plates 9 are both provided with small holes 12 matched with steel fibers, as shown in fig. 10(a) and 10 (b);
(5) transporting the prefabricated upper-layer wood boards, lower-layer wood boards, end wood boards, T-shaped steel, steel rods, steel fiber bodies and small ice block unit templates to a polar environment;
(6) pressing the sharpened side of the T-shaped steel into the upper and lower wood boards by an external force, as shown in FIGS. 11(a) and 11 (b);
(7) connecting the end boards on the three sides with the upper layer board and the lower layer board through the steel chisel to form a template, wherein the end part of the steel chisel is propped against the joint position of the flange and the web of the T-shaped steel, and the tail part of the steel chisel is exposed outside the end board as shown in fig. 12;
(8) penetrating the steel fiber body into the small hole of the small ice cube unit template, wherein the steel fiber body is higher than the upper surface of the side plate, as shown in fig. 13(a) and 13 (b);
(9) taking clean ice in a polar environment, heating the ice to liquid water, and pouring the water into the small ice block unit template as shown in fig. 14;
(10) forming small ice blocks with steel fibrous bodies after water is solidified, wherein the steel fibrous bodies protrude out of the upper surfaces and the side surfaces of the small ice blocks, removing the molds and taking out, and roughening six surfaces of the small ice blocks, as shown in fig. 15(a) and 15 (b);
(11) arranging the small ice blocks in sequence on the inner side surfaces of the lower-layer wood boards in the template, as shown in fig. 16;
(12) taking clean ice in a polar environment, heating the ice to liquid water, pouring a proper amount of water into the cavity of the template, and solidifying the water into ice;
(13) connecting the end part wood board on the last side with the upper layer wood board and the lower layer wood board through a steel chisel, wherein the end part of the steel chisel is propped against the joint position of the flange and the web of the T-shaped steel, and the tail part of the steel chisel is exposed outside the end part wood board; forming the wood ice composite floor standard unit as shown in figure 1.
As ice is the same as concrete and belongs to a brittle material, compared with a pure ice plate, the steel fiber layer arranged in the invention can avoid the brittle failure of ice caused by crack development; the six surfaces of the small ice block units are roughened to prevent the formation of weak surfaces due to insufficient adhesive force between the new ice surface and the old ice surface; the vertical steel fibers protruding out of the small ice blocks further greatly enhance the mechanical biting force of the new ice surface and the old ice surface; due to the existence of the steel fiber, the development of cracks can be limited, and the steel fiber is used for replacing the steel bar. When the floor slab support is difficult to achieve the fixed connection or the effect of approaching the fixed connection, the floor slab is close to the stress state of the four simply-supported sides when stressed; under the stress state, the lower part of the floor slab is in a tension state, ice belongs to a brittle material, once the ice is tensioned and cracks of brittle failure are generated, no sign is generated during cutting failure, and deformation is small; therefore, the small ice block units containing the steel fibers are arranged on the lower layer of the wood board, when the cracks pass through the steel fibers, the steel fibers can effectively limit the crack development, and the floor slab is prevented from being damaged in a brittle mode.
In the construction method, the partition plate capable of moving up and down is arranged in the small ice block template, and the partition plate is placed on the spring, so that the steel fiber is prevented from being jacked up and deformed when water is solidified and expanded, and the water can be expanded in the up and down directions simultaneously when the water is solidified and expanded under the action of the spring and the movable partition plate, and the unilateral expansion deformation is avoided.
As shown in fig. 8, the assembling method of the assemblable modular wood-ice composite floor slab of the present invention includes the following steps:
(1) taking down the steel chisel of a standard unit of the wood-ice composite floor slab, and reserving a hole left after the steel chisel is pulled out;
(2) penetrating the steel drill of the other wood-ice composite floor slab standard unit into the hole left after the steel drill is pulled out in the step (1);
(3) repeating the step (1) and the step (2), and continuously assembling the wood-ice composite floor slab standard units;
(4) and cutting off the steel chisel protruding from the standard unit of the wood-ice composite floor slab at the end part.
Claims (10)
1. The utility model provides a can assemble modularization wood ice composite floor which characterized in that: including by upper plank (1), lower floor plank (2) and tip plank (3) enclose into the shell of closed cavity, pack in the shell cavity and the ice body (4) that solidify and be located the ice body and place in the inboard steel fiber layer of lower floor plank, be provided with vertically and horizontally crossing upper recess (101) on the medial surface of upper timber (1), be provided with vertically and horizontally crossing lower floor's recess (201) on the medial surface of lower floor's timber (2), all pack in upper recess (101) and lower floor's recess (201) and have ice body (4).
2. The assembled modular wood-ice composite floor slab of claim 1, wherein: the upper-layer wood board (1) is connected with the end wood board (3) through the steel drill (5), the steel drill (5) penetrates through the end wood board (3) and the upper-layer wood board (1) from the outer side of the end wood board (3) in sequence, and part of the steel drill is exposed outside the end wood board (3).
3. The assembled modular wood-ice composite floor slab of claim 2, wherein: the upper-layer wood board (1) is internally provided with T-shaped steel (6) used for propping against a steel chisel, wherein the end part of the steel chisel (5) props against the joint position of the flange and the web of the T-shaped steel (6).
4. The assembled modular wood-ice composite floor slab of claim 1, wherein: the lower-layer wood board (2) is connected with the end wood board (3) through the steel drill rods (5), the steel drill rods (5) sequentially penetrate through the end wood board (3) and the lower-layer wood board (2) from the outer side of the end wood board (3), and part of the steel drill rods are exposed outside the end wood board (3).
5. The assembled modular wood-ice composite floor slab of claim 4, wherein: the lower-layer wood board (2) is internally provided with T-shaped steel (6) used for propping against a steel chisel, wherein the end part of the steel chisel (5) props against the joint position of the flange of the T-shaped steel (6) and a web plate.
6. The assembled modular wood-ice composite floor slab of claim 1, wherein: the steel fiber layer comprises a steel fiber body (7) which is formed by welding a plurality of steel fibers and is arranged in sequence.
7. The assembled modular wood-ice composite floor slab of claim 6, wherein: the steel fiber body (7) comprises a steel fiber surface which is parallel to the lower layer of wood board and is in a shape of a Chinese character mi and vertical steel fibers which are vertically arranged at the center of the steel fiber surface in an up-and-down symmetrical mode.
8. The assembled modular wood-ice composite floor slab of claim 6, wherein: the steel fiber body (7) comprises a horizontal steel fiber surface which is parallel to the lower layer wood board and is shaped like a Chinese character 'mi' and a vertical steel fiber surface which is vertical to the lower layer wood board and is shaped like a Chinese character 'mi'.
9. A construction method of a splittable modular wood-ice composite floor slab as claimed in any one of claims 1 to 8, wherein the method comprises the following steps:
(1) prefabricating an upper-layer wood board, a lower-layer wood board and an end-part wood board, forming longitudinally and transversely crossed grooves on one side face of the upper-layer wood board and one side face of the lower-layer wood board, and disassembling the upper-layer wood board, the lower-layer wood board and the end-part wood board after pre-assembling in a factory;
(2) prefabricating T-shaped steel and a steel chisel, and sharpening the pressed side face of the T-shaped steel;
(3) welding a plurality of finished single steel fibers into a steel fiber body;
(4) designing a small ice block unit template according to the size of the steel fibrous body, wherein the small ice block unit template comprises a bottom plate, four side plates, a partition plate arranged in parallel with the bottom plate and a spring positioned between the partition plate and the bottom plate, the partition plate can move up and down along the side plates, and the spring is in a free state in an initial state; the bottom plate and the four side plates are both provided with small holes matched with the steel fibers;
(5) transporting the prefabricated upper-layer wood boards, lower-layer wood boards, end wood boards, T-shaped steel, steel rods, steel fiber bodies and small ice block unit templates to a polar environment;
(6) pressing the sharpened side of the T-shaped steel into the upper-layer wood board and the lower-layer wood board by using external force;
(7) connecting end part boards on three sides with an upper layer board and a lower layer board through steel rods to form a template, wherein the end parts of the steel rods are abutted against the joint position of the flange and the web of the T-shaped steel, and the tail parts of the steel rods are exposed outside the end part boards;
(8) penetrating the steel fiber body into the small hole of the small ice block unit template, wherein the steel fiber body is higher than the upper surface of the side plate;
(9) taking clean ice in a polar environment, heating the ice into liquid water, and pouring the water into the small ice block unit template;
(10) forming small ice blocks with steel fibrous bodies after water is solidified, wherein the steel fibrous bodies protrude out of the upper surfaces and the side surfaces of the small ice blocks, removing the mold and taking out, and roughening six surfaces of the small ice blocks;
(11) arranging the small ice blocks in sequence on the inner side surface of the lower-layer wood board in the template;
(12) taking clean ice in a polar region environment, heating the ice into liquid water, pouring a proper amount of water into the cavity of the template, and waiting for the water to solidify into ice;
(13) connecting the end part wood board on the last side with the upper layer wood board and the lower layer wood board through a steel chisel, wherein the end part of the steel chisel is propped against the joint position of the flange and the web of the T-shaped steel, and the tail part of the steel chisel is exposed outside the end part wood board; and forming the wood ice composite floor standard unit.
10. A method for assembling modular wood-ice composite floor slabs as claimed in any one of claims 1 to 8, comprising the steps of:
(1) taking down the steel chisel of a standard unit of the wood-ice composite floor slab, and reserving a hole left after the steel chisel is pulled out;
(2) penetrating the steel drill of the other wood-ice composite floor slab standard unit into the hole left after the steel drill is pulled out in the step (1);
(3) repeating the step (1) and the step (2), and continuously assembling the wood-ice composite floor slab standard units;
(4) and cutting off the steel chisel protruding from the standard unit of the wood-ice composite floor slab at the end part.
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