CN220035850U - High-dimensional-precision assembled green laminated slab - Google Patents
High-dimensional-precision assembled green laminated slab Download PDFInfo
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- CN220035850U CN220035850U CN202320736706.9U CN202320736706U CN220035850U CN 220035850 U CN220035850 U CN 220035850U CN 202320736706 U CN202320736706 U CN 202320736706U CN 220035850 U CN220035850 U CN 220035850U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 66
- 239000010959 steel Substances 0.000 claims abstract description 66
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000011174 green composite Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 12
- 238000007788 roughening Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011065 in-situ storage Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an assembled green laminated slab with high dimensional accuracy, which comprises a concrete layer, wherein a main connecting piece and auxiliary connecting pieces are arranged on the surface of the concrete layer, the main connecting pieces are cold-formed rectangular section steel, the number of the auxiliary connecting pieces is at least 2, the auxiliary connecting pieces are a plurality of embedded anchor bolts, a plurality of locking through holes are formed in the bottom of the cold-formed rectangular section steel, locking operation holes are formed in the top of the cold-formed rectangular section steel corresponding to the locking through holes, internal thread sleeves are arranged in the concrete layer corresponding to the locking through holes and the embedded anchor bolts, and the cold-formed rectangular section steel passes through the locking through holes to be in locking connection with the corresponding internal thread sleeves through bolts; the sum of the axial total length of the internal thread sleeve and the height of the cold-formed rectangular steel is equal to the design height of the laminated slab, the axial total length of the internal thread sleeve is greater than or equal to the thickness of the concrete layer, and the top height of the embedded anchor bolt is smaller than the top height of the cold-formed rectangular steel. The utility model has higher preparation quality and greatly reduces the preparation difficulty.
Description
Technical Field
The utility model relates to the technical field of assembly type buildings, in particular to an assembly type green laminated slab with high dimensional accuracy.
Background
The laminated slab is a component which is prefabricated in a factory and transported to the site for installation, a bearing platform can be quickly built, cast-in-place concrete is cast on the bearing platform, and the laminated slab is formed, so that the construction speed is greatly improved, and the laminated slab is environment-friendly and widely applied.
The existing laminated slab is formed by integrally pouring and combining concrete and truss steel bars, the upper chord steel bars of the truss steel bars protrude out of the surface, after the cast-in-situ layer is solidified, a good combination effect is achieved, and the truss steel bars can also have the functions of bending resistance, deformation resistance and the like in the process of hoisting and transporting the laminated slab, and are stable in structure and not easy to damage.
Although the existing structure meets the assembly requirement, the existing structure has more problems in the actual production and transportation process:
1. in the preparation process, truss steel bars need to be bound together with a steel bar net and fixed in a mould, then concrete is poured, the setting height of the truss steel bars in the mould is difficult, the upper chord rib height of a laminated slab finished product is too low or too high for a long time, and the quality is influenced.
2. Truss reinforcing steel bar is prepared by welding an upper chord bar and two lower chord bars through two groups of web member reinforcing steel bars, the cross section structure is V-shaped, manual positioning and welding operation are needed in the preparation process, and the difficulty is high and time is consumed.
3. Because of the interference of truss steel bars, the surface roughening area of the laminated slab is reduced, and the roughening direction can only be consistent with the length direction of the truss steel bars, so that the overall roughening effect is low, and the quality of the laminated slab is affected.
Disclosure of Invention
The utility model aims to solve the technical problems and provide the assembled green laminated slab with high dimensional accuracy, which has higher preparation quality and greatly reduces the preparation difficulty.
In order to solve the technical problems, the utility model provides an assembled green laminated slab with high dimensional accuracy, which comprises a concrete layer, wherein a main connecting piece and auxiliary connecting pieces are arranged on the surface of the concrete layer, the main connecting pieces are cold-formed rectangular steel and are at least 2 in number, the auxiliary connecting pieces are a plurality of embedded anchors, a plurality of locking through holes are formed in the bottom of the cold-formed rectangular steel, locking operation holes are formed in the top of the cold-formed rectangular steel corresponding to the locking through holes, internal thread sleeves are arranged in the concrete layer corresponding to the locking through holes and the embedded anchors, and the cold-formed rectangular steel passes through the locking through holes through bolts to be in locking connection with the corresponding internal thread sleeves;
the sum of the axial total length of the internal thread sleeve and the height of the cold-formed rectangular section steel is equal to the design height of the laminated slab, the axial total length of the internal thread sleeve is greater than or equal to the thickness of the concrete layer, and the top height of the embedded anchor bolt is smaller than the top height of the cold-formed rectangular section steel.
Further, the surface of the internal thread sleeve is provided with radial perforations, the internal thread sleeve is sleeved on the steel bars of the steel bar meshes in the concrete layer through the radial perforations, and the internal thread sleeve and the corresponding steel bars are fixed through spot welding.
Further, the internal thread sleeve is of a tubular structure, a rubber plug is arranged at the bottom of the internal thread sleeve, a shielding convex part is arranged at the end part of the rubber plug, the shielding convex part is abutted with the end part of the internal thread sleeve, and the sum of the length of the body of the internal thread sleeve and the thickness of the shielding convex part is equal to the axial total length of the internal thread sleeve.
Further, a backing ring is arranged between the top of the internal thread sleeve and the cold-formed rectangular steel, and the sum of the length of the body of the internal thread sleeve and the thickness of the backing ring is equal to the axial total length of the internal thread sleeve.
Furthermore, the backing ring is welded at the bottom of the cold-formed rectangular section steel.
Furthermore, the surface of the cold-formed rectangular section steel is provided with a weight-reducing overflow hole.
Further, an anchor is arranged on the outer wall of the internal thread sleeve, and the internal thread sleeve is fixedly connected with a reinforcing steel mesh in the concrete layer.
Further, a spring washer is arranged on the bolt.
The utility model has the beneficial effects that:
1. when the die table is prepared, the surface of the die table is smooth, the die table is directly contacted with the die table through the internal thread sleeve, the purpose of calibrating the size can be achieved, the top of the internal thread sleeve is consistent in height and is matched and locked with the cold-formed rectangular profile steel with fixed size, the height precision of the laminated plate can be effectively controlled, and the problem of poor size caused by downward disturbance of the reinforcing steel bar can be avoided.
2. The cold-formed rectangular section steel has good strength, the laminated plates can be directly stacked and placed, the cushion block is not needed to assist, the use of the cushion block is avoided, and the strength of the whole structure is also ensured.
3. When the cold-formed rectangular section steel is damaged, the rectangular section steel can be replaced without scrapping the laminated plate.
4. The cold-formed rectangular steel and the concrete layer are assembled, when the concrete layer is prepared, the surface is free of protruding ribs, whole surface roughening can be achieved, and the roughening effect is guaranteed.
5. The design of the embedded anchor bolt can improve the combination capability of new and old concrete of the cast-in-situ layer and the prefabricated layer, and simultaneously can control the weight of the whole plate and the preparation cost of the whole plate.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
fig. 2 is a schematic view of a concrete layer structure of the present utility model;
fig. 3 is a schematic structural view of the mesh reinforcement of the present utility model fitted with an internally threaded sleeve;
FIG. 4 is a schematic view of a cold-formed rectangular steel structure of the present utility model;
fig. 5 is an exploded view of the mating structure of the female sleeve and the cold-formed rectangular steel section according to an embodiment of the present utility model.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.
Referring to fig. 1 to 4, an embodiment of the high-dimensional-precision assembly type green laminated slab comprises a concrete layer 1, wherein a reinforcing mesh 3 is arranged in the concrete layer, a main connecting piece and an auxiliary connecting piece are arranged on the surface of the concrete layer, the main connecting piece and the auxiliary connecting piece are arranged in parallel and used for replacing the existing truss reinforcing steel, the main connecting piece and the auxiliary connecting piece are arranged at intervals to ensure uniformity of stress, the main connecting piece is a cold-formed rectangular steel 2 and the number of the cold-formed rectangular steel is at least 2, the cold-formed rectangular steel is directly customized and purchased, the auxiliary connecting piece is a plurality of embedded bolts 113, a plurality of locking through holes 5 are arranged at the bottom of the cold-formed rectangular steel, locking operation holes 6 are formed at the top of the cold-formed rectangular steel corresponding to the locking through holes, locking through holes and inner threaded sleeves 4 are arranged in the concrete layer corresponding to the embedded through the locking through holes, spring gaskets can be sleeved on the bolts to ensure stability after locking, and the bolts are fixedly stretched into the locking operation holes through an electric motor;
the sum of the axial total length of the internal thread sleeve and the height of the cold-formed rectangular steel is equal to the design height of the laminated plate, and the axial total length of the internal thread sleeve is greater than or equal to the thickness of the concrete layer, so that the requirement of high precision is met, the axial total length of the internal thread sleeve is greater than or equal to the thickness of the concrete layer, embedding of the internal thread sleeve and convenience in subsequent assembly of the cold-formed rectangular steel are facilitated, searching on a green laminated plate is not required, the top height of an embedded anchor bolt is less than the top height of the cold-formed rectangular steel, and interference between the embedded anchor bolt and an adjacent laminated plate in the stacking and placing process is avoided.
The weight-reducing overflow hole 11 is arranged on the surface of the cold-formed rectangular section steel, so that concrete can enter the cold-formed rectangular section steel in the preparation process of a cast-in-situ layer, the strength of the whole structure is improved, wiring can be carried out on the weight-reducing overflow hole, and wiring construction can be guaranteed.
When preparing, put the reinforcing bar net piece in the mould earlier, then fix a plurality of internal thread sleeves according to the design mounted position of cold-formed rectangle shaped steel, internal thread sleeve bottom and mould platform surface butt, pour concrete afterwards, can obtain the concrete layer after the concrete solidification, put cold-formed rectangle shaped steel on the concrete layer surface afterwards, lock solid with the internal thread sleeve through the bolt with cold-formed rectangle shaped steel, the internal thread sleeve is pre-buried in the concrete layer, consequently cold-formed rectangle shaped steel also can form firm fixed knot with the concrete layer and construct, satisfy the user demand of superimposed sheet.
And can also wear to establish auxiliary steel bar 112 between a plurality of cold-formed rectangle shaped steel, cooperate between auxiliary steel bar and the cold-formed rectangle shaped steel and form network structure to cooperation pre-buried crab-bolt can effectively improve the tensile ability of pulling out of cast-in-situ layer, and the use of pre-buried crab-bolt is in order to replace cold-formed rectangle shaped steel, reduces manufacturing cost and whole weight under the prerequisite of guaranteeing connectivity.
Referring to fig. 5, the foregoing internal thread sleeve may be provided with radial holes on the surface, and the internal thread sleeve is sleeved on the reinforcing steel bar of the reinforcing steel bar mesh through the radial holes, and is fixed with the corresponding reinforcing steel bar through spot welding, that is, when the reinforcing steel bar mesh is bound, the internal thread sleeve is prefabricated and installed in a lump, and the combination effect of the internal thread sleeve and the reinforcing steel bar mesh is good, the strength is high, the radial holes can also fix the positions of the reinforcing steel bars, so as to avoid the reinforcing steel bar mesh from disturbing downwards, and play a supporting role.
Of course, the internal thread sleeve and the reinforcing mesh can be fixedly connected through binding wires, an anchor is arranged on the outer wall of the internal thread sleeve, and after the concrete is solidified, the internal thread sleeve can also have a good fixing effect.
In an embodiment, in order to guarantee that the internal thread sleeve bottom does not receive pollution injury such as corrosion, design the internal thread sleeve into tubular structure, simple structure, the preparation degree of difficulty is little, the internal thread sleeve bottom is provided with rubber buffer 8, the rubber buffer tip is provided with shields convex part 9, shield convex part and internal thread sleeve tip butt, after the concrete layer preparation is accomplished, shield the convex part and can keep apart internal thread sleeve bottom and external world, the rubber buffer of here can be pulled out, need fill after the pull out, also can not pull out, can satisfy the user demand of superimposed sheet.
After the rubber plug is arranged, the sum of the length of the body of the internal thread sleeve and the thickness of the shielding convex part is equal to the axial total length of the internal thread sleeve, so that the preparation dimensional accuracy is ensured.
In an embodiment, because the surface of the concrete layer needs to be roughened, the surface flatness after roughening is poor, in order to avoid uneven installation of the cold-formed rectangular steel, a backing ring 10 is arranged between the top of the internal thread sleeve and the cold-formed rectangular steel, the backing ring is used for backing up the cold-formed rectangular steel, the integral connection performance is not affected after locking, the sum of the length of the body of the internal thread sleeve and the thickness of the backing ring is equal to the axial total length of the internal thread sleeve, and the dimensional accuracy is ensured.
The backing ring can be welded and arranged at the bottom of the cold-formed rectangular steel, so that the integral structural strength is improved, the placing operation is reduced, and the preparation is simple.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (8)
1. The assembled green laminated slab with the high dimensional accuracy is characterized by comprising a concrete layer, wherein a main connecting piece and an auxiliary connecting piece are arranged on the surface of the concrete layer, the main connecting piece is cold-formed rectangular steel and has the number of at least 2, the auxiliary connecting piece is a plurality of embedded anchors, a plurality of locking through holes are formed in the bottom of the cold-formed rectangular steel, locking operation holes are formed in the top of the cold-formed rectangular steel corresponding to the locking through holes, and an internal thread sleeve is arranged in the concrete layer corresponding to the locking through holes and the embedded anchors, and the cold-formed rectangular steel passes through the locking through holes through the bolts to be in locking connection with the corresponding internal thread sleeve;
the sum of the axial total length of the internal thread sleeve and the height of the cold-formed rectangular section steel is equal to the design height of the laminated slab, the axial total length of the internal thread sleeve is greater than or equal to the thickness of the concrete layer, and the top height of the embedded anchor bolt is smaller than the top height of the cold-formed rectangular section steel.
2. The high-dimensional-accuracy assembled green laminated slab according to claim 1, wherein radial perforations are formed in the surface of the internally threaded sleeve, reinforcing steel meshes are further arranged in the concrete layer, the internally threaded sleeve is sleeved on reinforcing steel bars of the reinforcing steel meshes in the concrete layer through the radial perforations, and the internally threaded sleeve is fixed with corresponding reinforcing steel bars through spot welding.
3. The high-dimensional-accuracy assembled green laminated slab according to claim 1, wherein the female screw sleeve is of a tubular structure, a rubber plug is arranged at the bottom of the female screw sleeve, a shielding convex part is arranged at the end part of the rubber plug, the shielding convex part is abutted with the end part of the female screw sleeve, and the sum of the length of the body of the female screw sleeve and the thickness of the shielding convex part is equal to the axial total length of the female screw sleeve.
4. The high-dimensional-precision assembled green laminated slab according to claim 1, wherein a backing ring is arranged between the top of the internally threaded sleeve and the cold-formed rectangular steel, and the sum of the length of the body of the internally threaded sleeve and the thickness of the backing ring is equal to the axial total length of the internally threaded sleeve.
5. The high dimensional accuracy assembled green sheet of claim 4, wherein said backing ring is welded to the bottom of the cold-formed rectangular steel section.
6. The high dimensional accuracy assembled green sheet laminate of claim 1, wherein the cold-formed rectangular shaped steel surface is provided with weight-reducing overflow holes.
7. The high dimensional accuracy assembled green composite sheet of claim 1, wherein the anchor is provided on the outer wall of an internally threaded sleeve which is in locking engagement with the reinforcing mesh within the concrete layer.
8. The high dimensional accuracy assembled green sheet of claim 1, wherein said bolts are provided with spring washers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320736706.9U CN220035850U (en) | 2023-04-06 | 2023-04-06 | High-dimensional-precision assembled green laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320736706.9U CN220035850U (en) | 2023-04-06 | 2023-04-06 | High-dimensional-precision assembled green laminated slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220035850U true CN220035850U (en) | 2023-11-17 |
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ID=88743060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320736706.9U Active CN220035850U (en) | 2023-04-06 | 2023-04-06 | High-dimensional-precision assembled green laminated slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220035850U (en) |
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2023
- 2023-04-06 CN CN202320736706.9U patent/CN220035850U/en active Active
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