CN215759893U - Light prefabricated assembled space net rack ribbed floor - Google Patents
Light prefabricated assembled space net rack ribbed floor Download PDFInfo
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- CN215759893U CN215759893U CN202120812117.5U CN202120812117U CN215759893U CN 215759893 U CN215759893 U CN 215759893U CN 202120812117 U CN202120812117 U CN 202120812117U CN 215759893 U CN215759893 U CN 215759893U
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Abstract
The utility model discloses a light-weight preset fabricated space grid frame ribbed floor slab which comprises an upper flange plate, a plurality of criss-cross rib beams, a plurality of array-distributed evacuated cavities, a plurality of truss units, lower longitudinal ribs and upper longitudinal ribs, and plate-distributed reinforcing steel bars, wherein the plurality of criss-cross rib beams are formed by extending downwards from the lower surface of the upper flange plate, the array-distributed evacuated cavities are formed by the criss-cross rib beams in a surrounding mode, the truss units are distributed in the rib beams in parallel at intervals, the lower longitudinal ribs and the upper longitudinal ribs are distributed in the rib beams in parallel at intervals and are perpendicular to the truss units, and the plate-distributed reinforcing steel bars are distributed in the upper flange plate and are positioned above the upper longitudinal ribs. The utility model has the advantages of light dead weight, high bearing capacity, simple manufacture, accurate positioning, uniform steel bar protective layer, consistent width of longitudinal and transverse rib beams and the like.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of floor structures, and particularly relates to a light prefabricated assembly type space grid frame ribbed floor.
[ background of the utility model ]
The ribbed floor, hollow floor and cast-in-place beam slab floor in the existing market are all that a main keel is erected on a support frame, a required square wood secondary keel is erected on the main keel according to the space size of the floor, a template is laid on the square wood, then an axis and a rib beam size line are manually placed on the template, rib beam reinforcing steel bars and rib beam stirrups are manually manufactured, and then a filling box or a disposable formwork is placed in a grid formed by the rib beams in a crossed mode according to a construction drawing, so that the biggest defect is that the filling box or the disposable formwork is permanently pre-buried, cannot be reused, and the corresponding cost is increased; or the reusable formwork is erected according to the traditional square timber and the formwork, the high-altitude operation is performed on the spot for paying off, then the formwork is placed at the corresponding floor position to be used, the using amount of the square timber secondary keel is not reduced, the using amount of the formwork is not reduced or reduced to be limited, the workload of a high-altitude rib beam laying line is increased, a filling box or the formwork is not placed manually in an accurate positioning mode, so that the box or the formwork is easy to shift, the derived problems that the rib beams are not on the same line or the width of the rib beams is not uniform are generated, the operation safety risk is not convenient and increased, the assembly type industrial policy is not met, and the corresponding quality safety hazard is increased due to the uneven rib width caused by the formwork shift; the artificial rib beam steel bar has the following problems: firstly, increase field work volume extension time limit for a project, secondly the rib stirrup interval differs, and three are the rib size not of uniform size, and four are the reinforcing bar protective layer thickness differs, and these all can reduce designer's structural safety performance.
Therefore, there is a need to provide a new lightweight prefabricated fabricated space grid ribbed floor to solve the above-mentioned problems.
[ Utility model ] content
The utility model mainly aims to provide a light prefabricated assembly type space grid frame ribbed floor slab which has the advantages of light dead weight, high bearing capacity, simplicity in manufacturing, accuracy in positioning, uniformity in reinforcing steel bar protection layer, uniform width of longitudinal and transverse rib beams and the like.
The utility model realizes the purpose through the following technical scheme: a light-duty preset fabricated space net rack ribbed floor comprises an upper flange plate, a plurality of criss-cross ribs formed by extending downwards from the lower surface of the upper flange plate, a plurality of array-distributed evacuated cavities formed by surrounding of the criss-cross ribs, a plurality of truss units distributed in the ribs at intervals in parallel, lower longitudinal ribs and upper longitudinal ribs distributed in the ribs at intervals in parallel and perpendicular to the truss units, and plate-distributed reinforcing steel bars distributed in the upper flange plate and positioned above the upper longitudinal ribs; the evacuation cavity is of a structure with a large lower opening and a small upper opening and is provided with four enclosing inner wall surfaces, the four enclosing inner wall surfaces are of an inclined surface structure, and the adjacent two enclosing inner wall surfaces are in transition connection at a junction by adopting an arc surface; the truss unit is of a plane truss structure or a three-dimensional truss structure.
Furthermore, the planar truss structure comprises a first lower main rib, a first upper main rib positioned above the first lower main rib, and a first connecting rib for connecting the first upper main rib and the first lower main rib; the first connecting ribs are integrally wavy and are welded with the corresponding first upper main ribs or the corresponding first lower main ribs at the wave crests and the wave troughs.
Furthermore, the three-dimensional truss structure comprises a second lower main rib and a third lower main rib which are positioned on the same plane and arranged in parallel, a second upper main rib which forms a triangular structure with the second lower main rib and the third lower main rib, a second connecting rib which connects the second lower main rib and the second upper main rib, and a third connecting rib which connects the third lower main rib and the second upper main rib;
the second connecting rib and the third connecting rib are integrally wavy and are welded together with the corresponding second upper main rib or the second lower main rib or the third lower main rib at the wave crest and the wave trough.
Furthermore, the truss units are positioned between the lower longitudinal bars and the upper longitudinal bars and connected together through the truss connecting pieces to form a reinforced bar grid structure; the truss connecting piece is arranged at the longitudinal and transverse intersection of the rib beam.
Furthermore, the truss connecting piece comprises at least one pair of connecting screw rods, a supporting bottom sleeve, a lower supporting plate, upper pressing plates and nuts, wherein the supporting bottom sleeve is arranged on the connecting screw rods in an adjustable mode, the lower supporting plate is sleeved on the connecting screw rods in a pair mode, the lower supporting plate is supported by the supporting bottom sleeve, the upper pressing plates are sleeved on the connecting screw rods in a pair mode in two sides, and the nuts are used for locking the upper pressing plates on the connecting screw rods.
Furthermore, a first limiting groove and a second limiting groove perpendicular to the first limiting groove are formed in the lower supporting plate, a first plane structure is arranged on two sides of the first limiting groove, and a through hole is formed in the first plane structure and used for penetrating through the connecting screw rod; the lower longitudinal rib is placed in a first limiting groove of the lower supporting plate, the lower main rib in the truss unit is placed in a second limiting groove, the lower longitudinal rib is arranged below the lower longitudinal rib, the lower main rib in the truss unit is arranged above the lower longitudinal rib, and the lower longitudinal rib and the truss unit are supported and supported by the lower supporting plate.
Furthermore, a third limiting groove and a fourth limiting groove perpendicular to the third limiting groove are arranged on the upper pressure plate, a second plane structure is arranged on two sides of the third limiting groove, and a through hole is formed in the second plane structure and used for penetrating through the connecting screw rod; the third limiting groove in the upper pressing plate is clamped on the upper longitudinal rib, the fourth limiting groove is clamped on the upper main rib of the truss unit, the upper main rib in the truss unit is arranged at the lower part, the upper longitudinal rib is arranged at the upper part, the upper longitudinal rib and the truss unit are pressed downwards by the upper pressing plate, and then the upper pressing plate is locked downwards by the nut.
Furthermore, the supporting bottom sleeve is sleeved at the bottom of the connecting screw rod, and a plurality of threaded holes are formed in the bottom of the rib beam.
Further, the height of the supporting bottom sleeve is correspondingly consistent with the thickness of the concrete protective layer designed in the rib beam.
Furthermore, the plate distribution steel bars extend out of two ends of the floor slab and are bent downwards at two ends to extend into the structural structure.
Compared with the prior art, the light prefabricated assembly type space grid frame ribbed floor slab has the beneficial effects that: the truss units, the longitudinal bars and the truss connecting pieces are adopted to replace all or part of steel bars of the rib beam, so that the bearing capacity of the steel bar net rack is improved, the thickness of a steel bar protective layer is ensured, and the workload of the rib beam is reduced; through setting up vertically and horizontally staggered's rib girder structure, and form the die cavity of managing to find time of array distribution, the weight of floor has been reduced greatly, have the dead weight light, bear the weight of dynamic height, simple manufacture, fix a position accurate, the reinforcing bar protective layer is even, the rib girder width is unanimous vertically and horizontally, lossless, level land operation, security are high, floor is from taking a great deal of advantages such as convenient hoist and mount of connecting piece screw and saving the trompil, save a large amount of manual works, material input, reduced the comprehensive cost of floor, accord with green energy-conserving building.
[ description of the drawings ]
FIG. 1 is a schematic cross-sectional view perpendicular to the upper longitudinal ribs and the lower longitudinal ribs in an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view perpendicular to the truss structure of the embodiment of the utility model;
FIG. 3 is a schematic cross-sectional view of a planar truss structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of an embodiment of the present invention in a casting state;
FIG. 5 is a schematic structural view of a truss attachment member in an embodiment of the utility model;
FIG. 6 is another schematic structural view of a truss attachment member in an embodiment of the utility model;
FIG. 7 is a schematic view of a connection structure of a planar truss structure with upper longitudinal ribs, lower longitudinal ribs and truss connection members according to an embodiment of the present invention;
FIG. 8 is a schematic view of a connection structure of a three-dimensional truss structure, upper longitudinal ribs, lower longitudinal ribs and truss connection members according to an embodiment of the present invention;
FIG. 9 is a schematic bottom perspective view of a portion of an embodiment of the present invention;
the figures in the drawings represent:
100 light prefabricated assembly type space net rack ribbed floor slabs;
1, an upper flange plate; 2, a rib beam; 3, evacuating the cavity; 4 truss units, 41 planar truss structures, 411 first lower main ribs, 412 first upper main ribs, 413 first connecting ribs, 42 three-dimensional truss structures, 421 second lower main ribs, 422 third lower main ribs, 423 second upper main ribs, 424 second connecting ribs and 425 third connecting ribs; 5, lower longitudinal ribs; 6, arranging longitudinal ribs; 7 truss connecting pieces, 71 connecting screws, 711 lower sections, 712 upper sections, 72 supporting bottom sleeves, 73 lower supporting plates, 731 first limiting grooves, 732 second limiting grooves, 733 first plane structures, 74 upper pressing plates, 741 third limiting grooves, 742 fourth limiting grooves, 743 second plane structures and 75 nuts; 8, distributing steel bars on the plates; 9 structure.
[ detailed description ] embodiments
Example (b):
referring to fig. 1 to 9, the light prefabricated assembly type space grid multi-ribbed floor 100 of the present embodiment includes an upper flange plate 1, a plurality of criss-cross ribs 2 extending downward from a lower surface of the upper flange plate 1, a plurality of evacuated cavities 3 formed by surrounding the criss-cross ribs 2 and distributed in an array, a plurality of truss units 4 distributed in the rib 2 in parallel at intervals, lower longitudinal ribs 5 and upper longitudinal ribs 6 distributed in the rib 2 in parallel at intervals and perpendicular to the truss units 4, and plate distribution reinforcing steel bars 8 distributed in the upper flange plate 1 and located above the upper longitudinal ribs 6.
The evacuating cavity 3 is of a structure with a large lower opening and a small upper opening, and is provided with four enclosing and blocking inner wall surfaces, wherein the four enclosing and blocking inner wall surfaces are of an inclined plane structure, and the four enclosing and blocking inner wall surfaces are in arc surface transition connection at the intersection. The formwork is convenient to disassemble through a structure with a big bottom and a small top; and the cross section of the rib beam 2 is of an inverted trapezoidal structure with a wide upper part and a narrow lower part, so that the strength of the rib beam 2 is improved.
The truss unit 4 is a planar truss structure 41 or a three-dimensional truss structure 42.
The planar truss structure 41 includes a first lower main rib 411, a first upper main rib 412 located above the first lower main rib 411, and a first connecting rib 413 connecting the first upper main rib 412 and the first lower main rib 411. The first connecting rib 413 is integrally wavy and is welded to the corresponding first upper main rib 412 or the corresponding first lower main rib 411 at the wave crest and the wave trough.
The three-dimensional truss structure 42 includes a second lower main rib 421 and a third lower main rib 422 which are located on the same plane and are arranged in parallel, a second upper main rib 423 which forms a triangular structure with the second lower main rib 421 and the third lower main rib 422, a second connecting rib 424 which connects the second lower main rib 421 and the second upper main rib 423, and a third connecting rib 425 which connects the third lower main rib 433 and the second upper main rib 423. The second connecting rib 424 and the third connecting rib 425 are integrally wavy, and are welded together with the corresponding second upper main rib 423 or the second lower main rib 421 or the third lower main rib 422 at the wave crest and the wave trough.
The truss unit 4 is located between the lower longitudinal bar 5 and the upper longitudinal bar 6.
The truss unit 4, the lower longitudinal rib 5 and the upper longitudinal rib 6 are connected together through a truss connecting piece 7 to form a reinforced grid structure. The truss connecting pieces 7 are arranged at the longitudinal and transverse junctions of the rib beams 2.
The truss connecting member 7 includes at least a pair of connecting screws 71, a supporting bottom sleeve 72 disposed on the connecting screws 71 and adjustable in vertical position, a lower supporting plate 73 having two sides sleeved on the pair of connecting screws 71 and supported by the supporting bottom sleeve 72, an upper pressing plate 74 having two sides sleeved on the pair of connecting screws 71, and a nut 75 locking the upper pressing plate 74 on the connecting screws 71.
The lower supporting plate 73 is provided with a first limiting groove 731 and a second limiting groove 732 perpendicular to the first limiting groove 731, two sides of the first limiting groove 731 are provided with first plane structures 733, and the first plane structures 733 are provided with through holes for penetrating through the connecting screw 71. The lower longitudinal rib 5 is placed in the first limiting groove 731 of the lower supporting plate 73, the lower main rib in the truss unit 4 is placed in the second limiting groove 732, the lower longitudinal rib 5 is arranged below, the lower main rib in the truss unit 4 is arranged above, and the lower longitudinal rib 5 and the truss unit 4 are supported by the lower supporting plate 73.
The upper press plate 74 is provided with a third limiting groove 741 and a fourth limiting groove 742 perpendicular to the third limiting groove 741, two sides of the third limiting groove 741 are provided with second plane structures 743, and the second plane structures 743 are provided with through holes for penetrating the connecting screw 71. The third limiting groove 741 in the upper press plate 74 is clamped on the upper longitudinal rib 6, the fourth limiting groove 742 is clamped on the upper main rib of the truss unit 4, the upper main rib in the truss unit 4 is arranged at the lower part, the upper longitudinal rib 6 is arranged at the upper part, the upper longitudinal rib 6 and the truss unit 4 are pressed downwards through the upper press plate 74, and the upper press plate 74 is locked downwards through the nut 75.
The supporting bottom sleeve 72 is sleeved at the bottom of the connecting screw rod 71 and a plurality of threaded holes 21 are formed at the bottom of the rib beam 2. The threaded hole 21 facilitates later installation work of equipment facilities. The height of the supporting bottom sleeve 72 is correspondingly consistent with the thickness of the concrete protective layer in the rib beam 2. The height of the supporting bottom sleeve 72 determines the thickness of the protective layer of the lower longitudinal rib 5 in the rib beam 2, so that the thickness of the protective layer of the lower longitudinal rib 5 can be ensured to meet the design requirement by setting the height of the supporting bottom sleeve 72, and the thickness of the protective layer can be kept uniform.
The slab distribution rebars 8 extend out of both ends of the floor slab and are bent down at both ends into the structural structure 9. The construction structure 9 is a shear wall, or column, or beam, or cap-and-pile structure.
According to the light prefabricated assembly type space grid frame ribbed floor slab, all or part of steel bars of a rib beam are replaced by the truss units, the longitudinal bars and the truss connecting pieces, so that the bearing capacity of the steel bar grid frame is improved, the thickness of a steel bar protective layer is ensured, and the workload of the rib beam is reduced; through setting up vertically and horizontally staggered's rib girder structure, and form the die cavity of managing to find time of array distribution, the weight of floor has been reduced greatly, have the dead weight light, bear the weight of dynamic height, simple manufacture, fix a position accurate, the reinforcing bar protective layer is even, the rib girder width is unanimous vertically and horizontally, lossless, level land operation, security are high, floor is from taking a great deal of advantages such as convenient hoist and mount of connecting piece screw and saving the trompil, save a large amount of manual works, material input, reduced the comprehensive cost of floor, accord with green energy-conserving building.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a light-duty prefabricated assembled space rack close rib floor which characterized in that: the structure comprises an upper flange plate, a plurality of criss-cross ribs extending downwards from the lower surface of the upper flange plate, a plurality of array-distributed evacuated cavities formed by the criss-cross ribs in a surrounding manner, a plurality of truss units distributed in the ribs at intervals in parallel, lower longitudinal ribs and upper longitudinal ribs distributed in the ribs at intervals in parallel and perpendicular to the truss units, and plate-distributed reinforcing steel bars distributed in the upper flange plate and positioned above the upper longitudinal ribs; the evacuation cavity is of a structure with a large lower opening and a small upper opening and is provided with four enclosing inner wall surfaces, the four enclosing inner wall surfaces are of an inclined surface structure, and the adjacent two enclosing inner wall surfaces are in transition connection at a junction by adopting an arc surface; the truss unit is of a plane truss structure or a three-dimensional truss structure.
2. A light-weight pre-fabricated space truss ribbed floor as in claim 1, wherein: the planar truss structure comprises a first lower main rib, a first upper main rib positioned above the first lower main rib, and a first connecting rib for connecting the first upper main rib and the first lower main rib; the first connecting ribs are integrally wavy and are welded with the corresponding first upper main ribs or the corresponding first lower main ribs at the wave crests and the wave troughs.
3. A light-weight pre-fabricated space truss ribbed floor as in claim 1, wherein: the three-dimensional truss structure comprises a second lower main rib and a third lower main rib which are positioned on the same plane and arranged in parallel, a second upper main rib which forms a triangular structure with the second lower main rib and the third lower main rib, a second connecting rib which connects the second lower main rib and the second upper main rib, and a third connecting rib which connects the third lower main rib and the second upper main rib;
the second connecting rib and the third connecting rib are integrally wavy and are welded together with the corresponding second upper main rib or the second lower main rib or the third lower main rib at the wave crest and the wave trough.
4. A light-weight pre-fabricated space truss ribbed floor as in claim 1, wherein: the truss units are positioned between the lower longitudinal bars and the upper longitudinal bars and connected together through truss connecting pieces to form a reinforced bar grid structure; the truss connecting piece is arranged at the longitudinal and transverse intersection of the rib beam.
5. The light-weight preset fabricated space truss ribbed floor of claim 4, wherein: the truss connecting piece comprises at least one pair of connecting screw rods, a supporting bottom sleeve, a lower supporting plate, an upper pressing plate and a nut, wherein the supporting bottom sleeve is arranged on the connecting screw rods in an adjustable mode, the two sides of the lower supporting plate are sleeved on the connecting screw rods and supported by the supporting bottom sleeve, the two sides of the upper pressing plate are sleeved on the connecting screw rods, and the nut is used for locking the upper pressing plate on the connecting screw rods.
6. The light-weight preset fabricated space truss ribbed floor of claim 5, wherein: a first limiting groove and a second limiting groove perpendicular to the first limiting groove are formed in the lower supporting plate, a first plane structure is arranged on two sides of the first limiting groove, and a through hole is formed in the first plane structure and used for penetrating through the connecting screw rod; the lower longitudinal rib is placed in a first limiting groove of the lower supporting plate, the lower main rib in the truss unit is placed in a second limiting groove, the lower longitudinal rib is arranged below the lower longitudinal rib, the lower main rib in the truss unit is arranged above the lower longitudinal rib, and the lower longitudinal rib and the truss unit are supported and supported by the lower supporting plate.
7. The light-weight preset fabricated space truss ribbed floor of claim 5, wherein: a third limiting groove and a fourth limiting groove perpendicular to the third limiting groove are formed in the upper pressing plate, a second plane structure is arranged on two sides of the third limiting groove, and a through hole is formed in the second plane structure and used for penetrating through the connecting screw rod; the third limiting groove in the upper pressing plate is clamped on the upper longitudinal rib, the fourth limiting groove is clamped on the upper main rib of the truss unit, the upper main rib in the truss unit is arranged at the lower part, the upper longitudinal rib is arranged at the upper part, the upper longitudinal rib and the truss unit are pressed downwards by the upper pressing plate, and then the upper pressing plate is locked downwards by the nut.
8. The light-weight preset fabricated space truss ribbed floor of claim 5, wherein: the supporting bottom sleeve is sleeved at the bottom of the connecting screw rod and a plurality of threaded holes are formed in the bottom of the rib beam.
9. The light-weight preset fabricated space truss ribbed floor of claim 5, wherein: the height of the supporting bottom sleeve is correspondingly consistent with the thickness of a protective layer designed on the bottom steel bar in the rib beam.
10. A light-weight pre-fabricated space truss ribbed floor as in claim 1, wherein: the plate distribution reinforcing steel bars extend out of two ends of the floor slab and are bent downwards at two ends to extend into the structural structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120812117.5U CN215759893U (en) | 2021-04-20 | 2021-04-20 | Light prefabricated assembled space net rack ribbed floor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120812117.5U CN215759893U (en) | 2021-04-20 | 2021-04-20 | Light prefabricated assembled space net rack ribbed floor |
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| Publication Number | Publication Date |
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| CN215759893U true CN215759893U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120812117.5U Active CN215759893U (en) | 2021-04-20 | 2021-04-20 | Light prefabricated assembled space net rack ribbed floor |
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| CN (1) | CN215759893U (en) |
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- 2021-04-20 CN CN202120812117.5U patent/CN215759893U/en active Active
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