CN220664611U - Node device for escalator steel support - Google Patents
Node device for escalator steel support Download PDFInfo
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- CN220664611U CN220664611U CN202322410599.3U CN202322410599U CN220664611U CN 220664611 U CN220664611 U CN 220664611U CN 202322410599 U CN202322410599 U CN 202322410599U CN 220664611 U CN220664611 U CN 220664611U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 201
- 239000010959 steel Substances 0.000 title claims abstract description 201
- 230000035515 penetration Effects 0.000 claims description 10
- 239000003351 stiffener Substances 0.000 claims 5
- 230000004927 fusion Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 abstract description 22
- 230000000712 assembly Effects 0.000 abstract description 6
- 238000000429 assembly Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000011161 development Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 210000002837 heart atrium Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Escalators And Moving Walkways (AREA)
Abstract
The utility model discloses an escalator steel support node device which comprises a support steel beam, a plurality of escalator support node plates and a plurality of stiffening plate assemblies, wherein the longitudinal section of the support steel beam is I-shaped, the escalator support node plates are arranged at intervals at the top of the support steel beam, each escalator support node plate comprises a horizontal steel plate and two vertical steel plates, the two vertical steel plates are arranged at intervals, the bottoms of the two vertical steel plates are connected to the top of the support steel beam, the tops of the two vertical steel plates are respectively connected to the two ends of the horizontal steel plates, the horizontal steel plates are used for supporting an escalator support, the stiffening plate assemblies are in one-to-one correspondence with the escalator support node plates, and the stiffening plate assemblies are connected into the support steel beam and correspond to the positions right below the escalator support node plates. The force transmission path is clear, the structural stress is reasonable, and the reliability of the node structure is high; the construction is simple, and the application range is wide.
Description
Technical Field
The utility model relates to an escalator steel support node device.
Background
The steel structure has the advantages of light weight, high strength, good ductility and toughness, strong energy consumption, high industrialized assembly rate, random modeling and the like, and is widely used in industrial and civil buildings. Commercial buildings are from early concrete structures, and with the increasing national requirements for green buildings and assembly rates, more and more new commercial buildings adopt steel structural forms.
As a commercial building, the installation of an escalator is indispensable, and a common escalator steel support is a steel corbel, which is evolved from an industrial factory building crane girder steel corbel. Due to the diversity of steel structural designs, steel corbel nodes designed by different designers are not consistent in practice, but are basically identical in stress form.
For example: the supporting force of the escalator is downward force N, the distance between the bearing point of the bracket and the center of the steel beam is x, and the bending moment M=Nx of the escalator to the supporting steel beam. The support force is transmitted to the support steel beam through the bracket in a point load mode.
And part of the steel beam torque generated under the action of the bending moment of the escalator is transmitted to the floor slab to resist tension through the studs, and is born by the tensile steel bars of the floor slab, and the other part of the steel beam torque is born by the construction measures of the steel beam. The steel beam itself has poor torsion resistance and is relatively complex to calculate, and is usually provided with structural measures of transverse stiffening plates to bear the torque.
This common node approach has some drawbacks, specifically as follows:
first, because x is bigger, the support girder torque is bigger, and the arrangement space of the transverse stiffening plates needs to be encrypted.
Secondly, the bracket is arranged along the whole length of the beam in the atrium range, and the stiffening plates which are mainly stressed are uniformly arranged along the beam, so that materials are wasted.
Thirdly, the node is complex in operation, and the node is inconvenient to transport and install in the field after being machined together with the steel beam in a factory.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides an escalator steel support node device.
The utility model is realized by the following technical scheme:
the utility model provides an automatic staircase steel support node device, its includes support girder steel, a plurality of staircase support gusset and a plurality of stiffening plate subassembly, the longitudinal section shape of support girder steel is the I shape, a plurality of staircase support gusset interval set up in the top of support girder steel, staircase support gusset includes horizontal steel sheet and two vertical steel sheets, two vertical steel sheet interval sets up, and two the bottom of vertical steel sheet all connect in the top of support girder steel, two the top of vertical steel sheet connect respectively in the both ends of horizontal steel sheet, be used for supporting automatic staircase support on the horizontal steel sheet, a plurality of stiffening plate subassembly and a plurality of staircase support gusset one-to-one, stiffening plate subassembly connect in the support girder steel and correspond to under the staircase support gusset.
Further, the stiffening plate assembly comprises four stiffening plates, every two stiffening plates are respectively located on two sides of the support steel beam, and the two stiffening plates on each side respectively correspond to the positions right below the two vertical steel plates.
Further, the support girder steel includes diaphragm, web and lower diaphragm, the upper and lower both ends of web connect respectively in go up the diaphragm with the diaphragm down, four the stiffening plate all is located go up the diaphragm with down between the diaphragm, every two the stiffening plate is located respectively the both sides of web, just the stiffening plate connect in go up the diaphragm the web with the diaphragm down.
Further, two vertical steel plates are perpendicular to the upper transverse plate, and the two vertical steel plates are arranged on the upper transverse plate in an extending mode along the width direction of the support steel beam.
Further, the stiffening plate is welded in the support steel beam by adopting a fillet weld or a groove penetration weld.
Further, the stiffening plate has a plate thickness of 16mm.
Furthermore, both ends of the horizontal steel plate are welded to the two vertical steel plates by groove penetration, so that the horizontal steel plate and the two vertical steel plates are C-shaped.
Further, two vertical steel plates are welded to the top of the support steel beam in a groove penetration mode.
Further, the plate thickness of the horizontal steel plate is 20mm.
Further, the vertical steel plate has a plate thickness of 16mm.
The utility model has the beneficial effects that:
according to the node device for the escalator steel support, the load of the escalator support is sequentially transferred to the horizontal steel plate, the two vertical steel plates and the support steel beam, the transfer path of the whole structure is clear, the structural stress is reasonable, and the reliability of the node structure is high; meanwhile, the escalator support node plate and the stiffening plate assembly are connected with the support steel beam, so that the overall performance is good, the stress is concise, and the structural safety is high; the construction is simple, the field operation is less, the construction period is shortened, and the construction difficulty is reduced; the requirements on the use conditions are low, the application range is wide, and the universality and the economic benefit are good.
Drawings
Fig. 1 is a schematic perspective view of an escalator steel support node device according to an embodiment of the present utility model.
Fig. 2 is a schematic front view of an escalator steel support node device according to an embodiment of the present utility model.
Fig. 3 is a schematic view of an internal structure of an escalator steel support node apparatus according to an embodiment of the present utility model.
Reference numerals illustrate:
support girder 1
Upper cross plate 11
Web 12
Lower cross plate 13
Staircase support gusset plate 2
Horizontal steel plate 21
Vertical steel plate 22
Stiffening plate assembly 3
Stiffening plate 31
Detailed Description
The following description of embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the utility model may be practiced.
As shown in fig. 1, fig. 2 and fig. 3, this embodiment discloses an escalator steel support node device, this escalator steel support node device includes support girder steel 1, a plurality of escalator support node board 2 and a plurality of stiffening plate subassembly 3, the longitudinal section shape of support girder steel 1 is the i-shaped, a plurality of escalator support node board 2 interval sets up in the top of support girder steel 1, escalator support node board 2 includes horizontal steel sheet 21 and two vertical steel sheets 22, two vertical steel sheets 22 interval sets up, and the bottom of two vertical steel sheets 22 all is connected at the top of support girder steel 1, the both ends at horizontal steel sheet 21 are connected respectively at the top of two vertical steel sheets 22, be used for supporting the escalator support on the horizontal steel sheet 21, a plurality of stiffening plate subassembly 3 and a plurality of escalator support node board 2 one-to-one, stiffening plate subassembly 3 is connected in support girder steel 1 and is corresponding to under the escalator support node board 2.
All parts in the escalator steel support node device are processed by adopting factories, the size of each part is determined according to the size requirement of an escalator manufacturer on a support steel beam 1, and paying off and cutting are carried out on the support steel beam 1; then firstly, the horizontal steel plates 21 and the two vertical steel plates 22 are connected with each other to form an escalator support node plate 2, then the escalator support node plates 2 are connected to the support steel beam 1, the distance between every two adjacent escalator support node plates 2 is determined according to the position of the escalator steel truss, a plurality of escalator support node plates 2 are used for supporting escalator supports, and finally, stiffening plate assemblies 3 are installed at positions corresponding to the escalator support node plates 2 in the support steel beam 1.
After the escalator is installed, the supporting force is applied to the supporting steel beam 1 through the escalator supporting node plate 2, the load of the escalator supporting seat is sequentially transferred to the horizontal steel plate 21, the two vertical steel plates 22 and the supporting steel beam 1, the transfer path of the whole structure is clear, the structural stress is reasonable, and the reliability of the node structure is high; meanwhile, the escalator support node plate 2 and the stiffening plate component 3 are connected with the support steel beam 1, so that the overall performance is good, the stress is concise, and the structural safety is high; the construction is simple, the field operation is less, the construction period is shortened, and the construction difficulty is reduced; the requirements on the use conditions are low, the application range is wide, and the universality and the economic benefit are good.
The stiffening plate assembly 3 comprises four stiffening plates 31, each two stiffening plates 31 are respectively positioned at two sides of the support steel beam 1, and the two stiffening plates 31 at each side respectively correspond to the positions right below the two vertical steel plates 22. The four stiffening plates 31 play a reinforcing role, so that the overall structural strength of the escalator steel support node device is effectively enhanced, the overall performance is good, the stress is concise, and the structural safety is high.
In this embodiment, the number of staircase support gusset plates 2 and stiffening plate assemblies 3 is four, compares with traditional escalator steel corbel support nodes, and the setting number of stiffening plate 31 in this patent obviously reduces, by original full roof beam interval setting two side transverse stiffening plates, reduces to now only need 4 stiffening plate assemblies 3 of an escalator can. The steel beam stress is more reasonable, and the safety and reliability of the whole structure are improved. Meanwhile, the adaptability is strong, and the steel structure can be basically used in steel structure projects; the stress performance of the node is optimized, and only the escalator support node plate 2 is arranged at the escalator support, and a transverse stiffening plate is not required to be arranged on a whole beam, so that the material can be saved by about 70%; the processing technology is simple, the difficulty of site construction is small, and the construction workload is reduced by 60%.
The support girder steel 1 includes diaphragm 11, web 12 and diaphragm 13 down, and the upper and lower both ends of web 12 are connected respectively in diaphragm 11 and diaphragm 13 down, and four stiffening plates 31 all are located between diaphragm 11 and diaphragm 13 down, and every two stiffening plates 31 are located the both sides of web 12 respectively, and stiffening plate 31 is connected in diaphragm 11, web 12 and diaphragm 13 down. In the escalator steel support node device, the support steel beam 1 has low torsion resistance requirement; the setting position is flexible and convenient, the adaptability is strong, and the setting requirements of all types of escalator in the market are met; the structural durability is good, the construction quality is easy to control, and the safety and reliability are high. Wherein, two vertical steel plates 22 are all perpendicular to the upper transverse plate 11, and two vertical steel plates 22 are all arranged on the upper transverse plate 11 along the width direction of the support steel beam 1 in an extending way.
In the present embodiment, the stiffening plate 31 has a plate thickness of 16mm. The stiffening plates 31 are welded into the support steel beam 1 by fillet welds or groove penetration welds. The stiffening plate 31 is welded to the support steel beam 1, and the support steel beam 1 is subjected to negligible torsion.
The thickness of the horizontal steel plate 21 was 20mm. The thickness of the vertical steel plate 22 was 16mm. Both ends of the horizontal steel plate 21 are welded to the two vertical steel plates 22 by groove penetration welding, so that the horizontal steel plate 21 and the two vertical steel plates 22 are C-shaped. Two vertical steel plates 22 are welded on the top of the support steel beam 1 by groove penetration.
Wherein, the steel plate used by the staircase support node plate 2 and the stiffening plate component 3 adopts the steel model not lower than the support steel beam 1, and has good weldability. The chemical composition requirements of the steel plate are as follows: the content of C is not more than 0.20%; si content is not more than 0.35%; mn content is between 0.06 percent and 1.5 percent; the P content is not more than 0.25%; s content is not more than 0.015%; ALsa content is not less than 0.015%; cr, cu and Ni content is not more than 0.3%; the Mo content is not more than 0.08%.
Welding seam structure: the welding rod should adopt E50 type welding rod, the quality grade of the welding seam is two-level, and the design value of the fillet weld strength is 200N/mm 2 The design value of the joint strength is 305N/mm 2 The weld size configuration should meet the relevant specifications and atlas requirements.
The node device of the escalator steel support belongs to a precise component, and is required to be protected in the installation process of a construction site, so that the installation precision and the construction quality are ensured. The construction key points are as follows:
a) The node device of the escalator steel support has smaller size of each part, and needs to be processed in a refined way, so that the size of the finished assembly meets the requirement;
b) If the node device of the escalator steel support is installed after the floor slab concrete pouring is finished, residual concrete in an installation area is cleaned, and the welding surface is ensured to be clean and tidy;
c) The node device of the escalator steel support is generally arranged at the large open side of the atrium, protection measures of constructors are required to be met during construction, all the constructors should be ensured to go on duty, and welding seams of connecting parts are checked in time.
The escalator steel support node device of the embodiment directly transmits support force to the support steel beam 1 through simplifying a force transmission path, and does not generate additional bending moment, so that the structure is more stable and reliable. The problems that the steel beam is too large in torsion, high in cost and the like of the existing escalator steel support node are solved. Through research and analysis, the escalator steel support node device of the embodiment has the following characteristics:
1) The novel construction mode is adopted, the force transmission path of the node structure is clear, and the structure calculation and analysis result is reliable;
2) The escalator support node plates 2 and the stiffening plates 31 are welded with the support steel beams 1, so that the overall performance is good, the steel beams are stressed succinctly, and the structural safety is high;
3) The node device of the escalator steel support can be produced in batch in factories, the industrialization degree is high, and the processing quality of parts is easy to control;
4) The node device of the escalator steel support has the advantages of simple construction, less field operation, shortened construction period and reduced construction difficulty.
5) The node device for the escalator steel support has low requirements on use conditions, wide application range and good universality and economic benefit.
In summary, compared with the traditional mode, the escalator steel support node device provided by the embodiment of the utility model has the advantages of high industrialization degree, short construction period, low engineering cost, greenness, energy conservation and the like, meets the concept of sustainable development, meets the social development requirement, has good universality and has a wide development prospect.
The concrete construction flow of the escalator steel support node device of the embodiment is as follows:
a) Firstly, according to the size requirement of an escalator manufacturer on the support steel beam 1, determining the size of each part, paying off and cutting on the support steel beam 1;
b) Firstly, welding a horizontal steel plate 21 and two vertical steel plates 22 to form a C-shaped staircase support node plate 2, and adopting groove penetration welding;
c) C-shaped escalator support node plates 2 which are completed in the step b are welded on support steel beams 1, the distance between the two C-shaped escalator support node plates 2 is determined according to the position of an escalator steel truss, and groove penetration welding is adopted;
d) Four stiffening plates 31 are welded at positions below the two corresponding vertical steel plates 22 on two sides of the web 12, and the welding seams adopt fillet welding seams or groove penetration welding seams.
Wherein, the technical parameter requirements of the steel should meet the relevant requirements in the hot rolled section steel GB/T706-2016. The whole structure has clear force transmission path, reasonable structural stress, high reliability of the node structure and cost saving. The escalator steel support node device of the embodiment can be produced in batches according to actual conditions of projects, is unified in specification, has the advantages of being high in industrialization degree, short in construction period, low in engineering cost, green, energy-saving and the like compared with a traditional mode, meets the concept of sustainable development, meets the social development requirement, and has good universality, so that the escalator steel support node device has a broad development prospect.
The escalator steel support node device of the embodiment needs to perform stress analysis on key points of the whole force transmission path, and mainly calculates and analyzes the plate thickness of the escalator support node plate 2 according to the running load value provided by an escalator manufacturer. If the escalator support node plate 2 meets the design requirement through calculation and analysis, the node bearing capacity can be proved to meet the requirement, and the node structure is reliable.
The bearing capacity of the escalator support node plates 2 is checked, and the bearing capacity of each escalator support node plate 2 is 45kN according to the escalator support force installed when the common floor height of a commercial building is 6 m. The dimensions of the vertical steel plate 22 were 80mm according to manufacturer's recommendations with reference to the 6 m-layer high commercial project. The bearing node plate 2 of the escalator bears vertical concentrated force in the midspan of the horizontal steel plate 21.
The horizontal steel plate 21 and the vertical steel plate 22 are calculated according to rectangular steel plates with the cross sections of 200×20, the steel material is Q355B, and the material parameters include: the elastic modulus e= 206000MPa, the shear modulus g=79000 MPa, the design value f=250 MPa for tensile, compressive and bending strength, and the design value fv=145 MPa for shear strength. The section parameters include: cross-sectional area a=4000 mm 2 Area moment s=10000 mm 3 Moment of bending inertia i= 133333mm 4 Flexural modulus w=13333mm 3 。
The bending strength of the horizontal steel plate 21 is checked:
the flexural strength meets the requirements.
The shear strength of the horizontal steel plate 21 is checked:
the shearing strength meets the requirement.
Checking and calculating the overall stability:
overall stability coefficient
The integral stability checking calculation meets the requirement.
In actual engineering, a certain contact surface exists between the escalator steel truss and the support, the stress is more biased to locally and uniformly distribute load, and the stress condition of the escalator support gusset plate 2 is better than the stress concentration. If the calculation strength and the overall stability under the concentrated force meet the requirements, the bearing capacity of the escalator support node plate 2 in the escalator steel support node device can be considered to meet the requirements, and the node design is reasonable.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
Claims (10)
1. The utility model provides an automatic staircase steel support node device, its characterized in that includes support girder steel, a plurality of staircase support gusset and a plurality of stiffening plate subassembly, the longitudinal section shape of support girder steel is the I shape, a plurality of staircase support gusset interval set up in the top of support girder steel, staircase support gusset includes horizontal steel sheet and two vertical steel sheets, two the vertical steel sheet interval sets up, and two the bottom of vertical steel sheet all connect in the top of support girder steel, two the top of vertical steel sheet connect respectively in the both ends of horizontal steel sheet, be used for supporting automatic staircase support on the horizontal steel sheet, a plurality of stiffening plate subassembly and a plurality of staircase support gusset one-to-one, the stiffening plate subassembly connect in the support girder steel and correspond under the staircase support gusset.
2. The escalator steel support node arrangement of claim 1, wherein said stiffener assembly comprises four stiffeners, each two of said stiffeners being located on either side of said support steel beam, and each two of said stiffeners on either side being located directly below two of said vertical steel plates.
3. The escalator steel support node assembly of claim 2, wherein said support steel beam comprises an upper cross plate, a web and a lower cross plate, wherein the upper and lower ends of said web are connected to said upper and lower cross plates, respectively, four stiffening plates are located between said upper and lower cross plates, each two stiffening plates are located on either side of said web, respectively, and said stiffening plates are connected to said upper, web and said lower cross plates.
4. An escalator steel support node arrangement according to claim 3, wherein both of said vertical steel plates are perpendicular to said upper cross plate, and both of said vertical steel plates are disposed on said upper cross plate extending in the width direction of said support steel beam.
5. The escalator steel support node assembly of claim 2, wherein said stiffening plate is welded into said support steel beam using fillet or groove penetration welds.
6. The escalator steel support node assembly of claim 2, wherein the stiffener plate has a plate thickness of 16mm.
7. The escalator steel support node assembly of claim 1, wherein both ends of said horizontal steel plate are fusion welded to said two vertical steel plates using grooves such that a C-shape is formed between said horizontal steel plate and said two vertical steel plates.
8. The escalator steel support node assembly of claim 1, wherein two of said vertical steel plates are fusion welded to the top of said support steel beam using a groove.
9. The escalator steel support node arrangement according to claim 1, wherein the sheet thickness of the horizontal steel sheet is 20mm.
10. The escalator steel support node arrangement according to claim 1, wherein the vertical steel sheet has a sheet thickness of 16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322410599.3U CN220664611U (en) | 2023-09-05 | 2023-09-05 | Node device for escalator steel support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322410599.3U CN220664611U (en) | 2023-09-05 | 2023-09-05 | Node device for escalator steel support |
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| Publication Number | Publication Date |
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| CN220664611U true CN220664611U (en) | 2024-03-26 |
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| CN202322410599.3U Active CN220664611U (en) | 2023-09-05 | 2023-09-05 | Node device for escalator steel support |
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2023
- 2023-09-05 CN CN202322410599.3U patent/CN220664611U/en active Active
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