CN215254807U - Heavy-load double-ribbed-plate I-shaped steel beam steel module splicing structure - Google Patents
Heavy-load double-ribbed-plate I-shaped steel beam steel module splicing structure Download PDFInfo
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- CN215254807U CN215254807U CN202120601438.0U CN202120601438U CN215254807U CN 215254807 U CN215254807 U CN 215254807U CN 202120601438 U CN202120601438 U CN 202120601438U CN 215254807 U CN215254807 U CN 215254807U
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Abstract
The utility model discloses a heavy-duty double-ribbed-plate I-steel beam steel module splicing structure, wherein each steel module comprises at least four upright posts which are positioned at the corner part, a second beam positioned at the top of the module and a first beam positioned at the bottom of the module; the first cross beam and the second cross beam are both double-ribbed-plate I-shaped steel; between the adjacent module of upper and lower floor, pass the second crossbeam of lower floor's module and the first crossbeam of upper module through connecting bolt and fix, connecting bolt wears to locate between the double ribbed slab of double ribbed slab I-steel both sides, and connecting bolt's both ends still are provided with the rigidity cushion that is used for strengthening local rigidity. This heavy load double rib board I-steel module mosaic structure is applicable to the modularization assembled of heavy load service environment and installs the connection of elevator well additional, has the beneficial technological effect that improves joint strength and rigidity to and the security is good.
Description
Technical Field
The utility model relates to an assembled installs elevator well concatenation technical field additional, concretely relates to heavy load double ribbed slab I-steel crossbeam steel module mosaic structure.
Background
The building with the older building age is usually only provided with the stairs, and with the development of the population aging trend and the continuous promotion of old building reconstruction projects, in order to facilitate the coming and going of old and weak residents who need to use wheelchairs, the addition of elevators in the old building becomes a very important work in the reconstruction process. The steel structure assembled additional elevator has the advantages of short construction period, good safety performance and the like, and is widely used.
Because the territory of china is vast, the address condition in different cities is also very different, and the connection form of conventional steel construction elevator well is to being in the city in typhoon high-rise district and earthquake zone, can not satisfy the structural strength demand that these cities old building installed the elevator additional, consequently at the in-process of old building transformation in the whole nation and installing the elevator additional, must adopt high standard's design to the elevator transformation that is in typhoon high-rise district and earthquake zone to overcome the problem that current steel construction elevator well connection exists: 1. the strength and rigidity can not meet the heavy load requirement; 2. the security is not sufficient.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem among the prior art, the utility model provides a joint strength is high with rigidity to and the module mosaic structure that the security is good is applicable to the assembled modularization and installs the connection of elevator well additional.
A heavy-load double-ribbed-plate I-steel beam steel module splicing structure is characterized in that each steel module comprises at least four upright posts, at least four second beams and at least four first beams, wherein the upright posts are positioned at corners, the second beams are positioned at the top of the module and connected with the upright posts on two sides, and the first beams are positioned at the bottom of the module and connected with the upright posts on two sides; the first cross beam and the second cross beam are both in double-ribbed-plate I-shaped steel structures; and the adjacent modules on the upper layer and the lower layer are fixed by penetrating through the second cross beam of the module on the lower layer and the first cross beam of the module on the upper layer through connecting bolts, and the bolts are arranged between the double rib plates on two sides of the double rib plate I-shaped steel in a penetrating manner.
The steel module comprises at least four columns at the corners, and may alternatively comprise six or more columns. The second crossbeam welds and second crossbeam upper surface and stand up end parallel and level with both sides stand side, and first crossbeam is same welds and first crossbeam lower surface and stand lower extreme parallel and level with both sides stand side.
Preferably, in the above steel module splicing structure, the connecting bolt has a nut and a gasket, the gasket is respectively located on the upper surface of the first beam and the lower surface of the second beam, and the width of the gasket is greater than the width of a gap between the two rib plates.
Preferably, among the above-mentioned steel module mosaic structure, double rib board I-steel all has double-deck stiffening rib in the both sides that are located connecting bolt, is provided with connecting bolt in the clearance of the double-deck stiffening rib of both sides, stiffening rib is used for supporting and transmits the fastening force of bolt, simultaneously because stiffening rib's supporting role connecting bolt can adopt higher pretightning force to improve joint strength and rigidity between the module.
Further, the thickness of the stiffening rib is 0.5-0.8 times of the diameter of the connecting bolt.
Preferably, rigid cushion blocks are arranged between the connecting bolts and the lower surface of the second cross beam and between the connecting bolts and the upper surface of the first cross beam, and two ends of each rigid cushion block are flush with two sides of the cross beam and used for pressure dispersion of a bolt pressure bearing area, so that the pressure stress is uniformly diffused, the strain around the connecting bolts is reduced, and the connecting strength and the rigidity between the modules are further improved.
Furthermore, the rigid cushion block is a cuboid carbon steel cushion block with two bolt through holes, the width of the rigid cushion block is 3-6 times of the diameter of the connecting bolt, the length of the rigid cushion block is equal to the width of the second beam or the first beam, and the thickness of the rigid cushion block is 0.5-1.2 times of the diameter of the connecting bolt.
Preferably, the connecting bolts are concentrated near the columns of the modules, the distribution density of the connecting bolts near the corner columns is greater than that near the middle column, and since the positions near the corner columns are usually the positions where the upper and lower module connections are most prone to failure, the connecting bolts are distributed in such a way that the connection strength and rigidity of the same number of connecting bolts can be maximized, in other words, the minimum number of connecting bolts can be used under the condition that the connection strength and rigidity requirements are met.
Further, the distribution of the connecting bolts may be distributed in an array, for example: the distance between the 1 st row of bolts counted by a certain corner column in sequence and the side face of the corner column is A, and the distance between the nth row of bolts and the (n +1) th row of connecting bolts is k x n x A. K is a coefficient, and the numerical range of k is 1.5-3; n is a natural number, and the numerical range of n is subject to the bolt hole distribution range not exceeding 40% of the distance between the two upright posts.
Further, the A is 3-10 times of the diameter of the connecting bolt.
Preferably, the top of the stand at four bights is provided with the deflector that is used for guiding orientation when the module equipment from top to bottom, the deflector comprises two vertically crossed steel sheets, four perpendicular limits and the inside four corners crest line welding of stand of two steel sheets of deflector, two steel sheet both sides of deflector have the oblique angle that is used for the module equipment direction, constitute two steel sheets of deflector are one-tenth the nothing, have the hole for hoist that is used for the module hoist and mount on the wherein longer steel sheet.
Compared with the prior art, the utility model discloses following beneficial effect has:
the connecting structure is reasonable, and the connecting strength and rigidity are obviously improved: by pairs on both sides of connecting bolts
The double-layer rib plates are arranged, and the rigid cushion blocks are arranged between the connecting bolts and the upper surface of the second cross beam and between the connecting bolts and the lower surface of the first cross beam, so that the local rigidity of the connecting position of the second cross beam and the first cross beam is obviously improved, the connecting bolts can adopt higher pretightening force, and the connecting strength and rigidity are obviously improved.
Secondly, the bolt distribution is optimized, and the connection safety is obviously improved: the connecting bolts are symmetrically distributed on two sides of the cross beam and form double-row distribution; meanwhile, the positions of the connecting bolts are concentrated near the upright columns at the four corners of the module, and the closer to the corner, the higher the distribution density of the connecting bolts of the upright columns is, so that the connection safety is improved.
Drawings
FIG. 1 is a schematic three-dimensional view of the splicing of an upper module and a lower module of a steel module splicing structure;
FIG. 2 is a schematic cross-sectional view of a splicing structure of an upper steel module and a lower steel module;
fig. 3 is a schematic diagram of a steel module splicing structure applied to a modular elevator.
In the figure: 1-first beam, 2-second beam, 3-upright post, 4-bolt, 41-bolt hole, 5-stiffening rib, 6-gasket, 7-nut, 8-rigid cushion block, 9-web plate, 10 wing plate, 31 guide plate and 311 hoisting hole.
Detailed Description
The technical solutions of the present invention will be explained and illustrated in detail below with reference to the accompanying fig. 1 to 4 and specific embodiments, so that those skilled in the art can better understand the present invention and implement the present invention.
As shown in fig. 1, each steel module comprises four upright posts 3 positioned at the corner, two upright posts 3 positioned in the middle of the side surface, a second cross beam 2 positioned at the top of the module and a first cross beam 1 positioned at the bottom of the module; the first cross beam 1 and the second cross beam 2 are both double-ribbed-plate I-shaped steel, the steel module is prefabricated in a factory, and the steel module is assembled and installed in a modularized mode in a construction site.
As shown in fig. 1 and 2, the double-ribbed-plate i-steel includes two parallel wing plates 10, a web plate 9 connected with and perpendicular to the two wing plates 10, and two parallel stiffening ribbed plates 5, referred to as double ribbed plates for short, on both sides of the bolt holes 41 of the upper and lower wing plates 10 and perpendicular to the wing plates 10 and the web plate 9, and the double ribbed plates are symmetrically arranged on both sides of the i-steel. The connecting bolt 4 penetrating through the bolt hole 41 of the upper wing plate 10 and the lower wing plate 10, the web plate 9 in the middle and the stiffening rib plates 5 on two sides of the bolt hole 41 form rigid support for the upper wing plate and the lower wing plate, and the local rigidity of the periphery of the bolt hole 41 is obviously improved, so that the connecting bolt 4 can adopt higher pretightening force to realize higher connecting strength and connecting rigidity.
The thickness of the stiffening rib is 0.6 times of the diameter of the connecting bolt.
The connecting bolt is further sleeved with a gasket 6 at the position, extending out of the surface of the double-ribbed-plate I-shaped steel, the width of the gasket is larger than the distance between the double ribbed plates, and the pressure of the bolt can be better borne.
As shown in fig. 1, rigid cushion blocks 8 are arranged between the connecting bolts and the lower surface of the second beam and the upper surface of the first beam, and two ends of each rigid cushion block 8 are flush with two sides of the beam and are used for improving the local rigidity of the pressure-bearing area of the connecting bolts 4 so as to disperse pressure, enable the pressure stress to be uniformly diffused, reduce the strain around the connecting bolts 4 and further improve the connecting strength and rigidity between the modules.
Further, the rigid cushion block 8 is a rectangular carbon steel cushion block with two bolt through holes 41, the width of the rectangular carbon steel cushion block is 4 times of the diameter of the connecting bolt 4, the length of the rectangular carbon steel cushion block is equal to the width of the second beam or the first beam, and the thickness of the rectangular carbon steel cushion block is 0.8 times of the diameter of the connecting bolt.
As shown in fig. 1, the positions of the connecting bolts 4 are concentrated near the columns at the four corners of the module, the distribution density of the connecting bolts 4 is increased as the connecting bolts are closer to the corner columns, and since the positions near the corner columns are usually the places where the upper and lower module connections are most prone to failure, the connecting bolts 4 are distributed in such a way that the connection strength and rigidity of the same number of connecting bolts 4 can be maximized, in other words, the minimum number of connecting bolts 4 are used under the condition that the connection strength and rigidity requirements are met.
As shown in fig. 1, the connecting bolts 4 are distributed in a series, the distance between the connecting bolt 4 in the 1 st row counted in order by a certain corner pillar and the corner pillar is a, a is equal to 4 times the diameter of the connecting bolt 4, the distance between the connecting bolt in the n th row and the connecting bolt in the (n +1) th row is 2 n a, where n is a natural number and the maximum value is equal to 2. Two sides of the other two upright columns 3 positioned in the middle of the side edge of the module are respectively provided with a row of connecting bolts 4, and the distance between each connecting bolt 4 and the upright column in the middle of the side edge is A.
As shown in fig. 3, the top end of the column 3 at four corners is provided with a guide plate 31 for guiding and positioning the upper and lower modules during assembly, the guide plate 31 is composed of two vertically crossed steel plates, four vertical edges of the two steel plates of the guide plate 31 are welded with four corner edge lines inside the column 3, two steel plate sides of the guide plate 31 are provided with oblique angles for guiding module assembly, the two steel plates of the guide plate 31 are formed by one long steel plate and one short steel plate, and the longer steel plate is provided with a hoisting hole 311 for hoisting the modules.
As shown in fig. 4, through two floor I-steel crossbeam steel module mosaic structure of heavy load become one kind and be used for old building to install the used steel construction elevator well additional with a plurality of steel construction elevator well module assembly. The utility model has the characteristics of joint strength and rigidity are good, and factor of safety is high, and the elevator that is applicable to typhoon high-rise district and earthquake area reforms transform the engineering and uses.
Heavy load double rib board I-steel crossbeam steel module mosaic structure's use:
1. a factory processes and manufactures steel modules according to a design drawing;
2. pre-assembling steel modules in a factory, temporarily fixing the modules after the pre-assembling is finished, and processing bolt holes 41 on the double-ribbed-plate I-shaped steel wing plates;
3. splicing the on-site hoisting modules and aligning all the upright columns 3 of the upper module and the lower module;
4. placing a rigid cushion block 8 on the upper surface of the first cross beam 1 of the upper module and aligning with the bolt hole 41;
5. placing a gasket 6 and penetrating a connecting bolt 4 to penetrate the first beam 1 of the upper module and the second beam 2 of the lower module;
6. placing a rigid cushion block 8 and a gasket 6 at the head of the connecting bolt 4, and then screwing a nut 7 into the head of the connecting bolt 4 and performing initial screwing;
7. after the connection of all modules is completed, all bolts are tightened from top to bottom by a tool to a specified torque.
The present invention has been described in detail with reference to specific embodiments, and the description of the embodiments is only for the purpose of helping understanding the core idea of the present invention. It should be understood that any obvious modifications, equivalents and other improvements made by those skilled in the art without departing from the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A heavy-load double-ribbed-plate I-steel beam steel module splicing structure is characterized in that each steel module comprises at least four upright posts, at least four second beams and at least four first beams, wherein the upright posts are positioned at corners, the second beams are positioned at the top of the module and connected with the upright posts on two sides, and the first beams are positioned at the bottom of the module and connected with the upright posts on two sides; the first cross beam and the second cross beam are both in double-ribbed-plate I-shaped steel structures; and the adjacent modules on the upper layer and the lower layer are fixed by penetrating through the second cross beam of the module on the lower layer and the first cross beam of the module on the upper layer through connecting bolts, and the bolts are arranged between the double rib plates on two sides of the double rib plate I-shaped steel in a penetrating manner.
2. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: the bolt is also sleeved with a gasket, the gasket is respectively positioned on the upper surface of the first cross beam and the lower surface of the second cross beam, and the width of the gasket is greater than the distance between the double rib plates.
3. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: the double-ribbed-plate I-shaped steel is provided with double layers of stiffening ribs on two sides at the bolt connecting position, and connecting bolts are arranged in gaps of the double layers of stiffening ribs on the two sides.
4. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: and the upright columns and the second cross beams in each module and the upright columns and the first cross beams are connected in a welding mode.
5. The heavy-duty double-ribbed plate I-steel beam steel module splicing structure of claim 3, wherein: the thickness of the stiffening rib is 0.5-0.8 times of the diameter of the connecting bolt.
6. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: and rigid cushion blocks are arranged between the connecting bolts and the lower surface of the second cross beam and between the connecting bolts and the upper surface of the first cross beam, and two ends of each rigid cushion block are flush with two sides of each cross beam.
7. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 6, wherein: the rigid cushion block is a cuboid carbon steel cushion block with two bolt through holes, the width of the rigid cushion block is 3-6 times of the diameter of the connecting bolt, the length of the rigid cushion block is equal to the width of the second cross beam or the first cross beam, and the thickness of the rigid cushion block is 0.5-1.2 times of the diameter of the connecting bolt.
8. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: the connecting bolts are concentrated near the upright posts of the module, and the distribution density of the connecting bolts is higher when the connecting bolts are closer to the upright posts.
9. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: the distance between the 1 st row of bolts counted by a certain column in sequence and the side face of the column is A, wherein A is 3-10 times of the diameter of the connecting bolt, and the distance between the nth row of bolts and the (n +1) th row of connecting bolts is k x n x A. K is a coefficient, and the numerical range of k is 1.5-3; n is a natural number, and the numerical range of n is subject to the condition that the distribution range of the bolt holes does not exceed 40% of the distance between two adjacent upright posts.
10. The splicing structure of the heavy-duty double-ribbed plate I-steel beam steel module of claim 1, characterized in that: the top of the stand at four bights is provided with the deflector that is used for guiding orientation when module equipment from top to bottom, the deflector comprises two vertically crossed steel sheets, four perpendicular limits of two steel sheets of deflector and the inside four corners crest line welding of stand, two steel sheet both sides of deflector have the oblique angle that is used for module equipment direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120601438.0U CN215254807U (en) | 2021-03-24 | 2021-03-24 | Heavy-load double-ribbed-plate I-shaped steel beam steel module splicing structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120601438.0U CN215254807U (en) | 2021-03-24 | 2021-03-24 | Heavy-load double-ribbed-plate I-shaped steel beam steel module splicing structure |
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| CN215254807U true CN215254807U (en) | 2021-12-21 |
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