EP3931142B1 - Fachwerksektions-verbindungsbereich - Google Patents

Fachwerksektions-verbindungsbereich Download PDF

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Publication number
EP3931142B1
EP3931142B1 EP20704896.8A EP20704896A EP3931142B1 EP 3931142 B1 EP3931142 B1 EP 3931142B1 EP 20704896 A EP20704896 A EP 20704896A EP 3931142 B1 EP3931142 B1 EP 3931142B1
Authority
EP
European Patent Office
Prior art keywords
section
framework
sections
upper chord
lower chord
Prior art date
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Active
Application number
EP20704896.8A
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German (de)
English (en)
French (fr)
Other versions
EP3931142A2 (de
Inventor
David Krampl
Michael Matheisl
Richard Schütz
Robert Schulz
Thomas KOUKAL
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Inventio AG
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Inventio AG
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Publication date
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Publication of EP3931142A2 publication Critical patent/EP3931142A2/de
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Publication of EP3931142B1 publication Critical patent/EP3931142B1/de
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5806—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile
    • E04B1/5812—Connections for building structures in general of bar-shaped building elements with a cross-section having an open profile of substantially I - or H - form
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2418—Details of bolting
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2448—Connections between open section profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Definitions

  • the present invention relates to the design of a truss for a passenger transport system such as an escalator, a moving walkway or the like.
  • Escalators which are also referred to as escalators, are regularly used, for example, to transport people in a building from one floor to another floor.
  • Moving walks can be used to transport people within a floor in a horizontal plane or in a plane that is only slightly inclined.
  • People transportation systems generally have a truss that serves as the load-bearing structure.
  • the truss is designed to absorb static and dynamic forces acting on the passenger transport system, such as weight forces of people being transported, forces caused by a drive of the passenger transport system, and the like, and to transmit them to structures of the building housing the passenger transport system, for example.
  • the passenger transport system can be stored and fastened at suitably designed support points on the structure.
  • the framework can extend, for example, over two or more levels or storeys of the structure and/or over shorter or longer distances within a storey that remains the same within the structure.
  • a truss that is supported in the assembled state at the bearing points of the structure can accommodate both movable and stationary components of the passenger transport system.
  • such components can be designed, for example, as step belts, pallet belts, deflection axles, drive shafts, drive motors, gears, controls, monitoring systems, safety systems, balustrades, comb plates, bearing points, moving belts and/or guide rails.
  • a truss is generally composed of a multitude of interconnected load-bearing truss components.
  • Such framework components can include, for example, so-called upper chords and lower chords as well as connecting struts connecting these chords to one another, such as transverse struts, diagonal struts, uprights and the like. Additional structures such as gusset plates, angled plates, holding plates, oil pan plates, underside plates, etc. can also be provided.
  • each individual truss component must be connected to one another with sufficient stability.
  • the truss components are usually welded or riveted together for this purpose.
  • each individual truss component must be welded together with other truss components of the truss in a stable and load-bearing manner.
  • an escalator or moving walk can have a considerable conveying length of 30 meters or more.
  • From a certain length or span of the truss can in the EP 0 345 525 A2 disclosed and for trusses commonly used angle profile bars lead to problems, for example in relation to the well-known lateral torsional buckling.
  • the risk of a beam failing due to lateral torsional buckling decreases as the smallest and largest area moments of inertia of the associated cross-section approach each other. For this reason, the classic steel profiles are particularly at risk.
  • the bearing of the beam, the distance between the bearing points and its torsional strength are of great importance. Closed hollow profiles such as pipes have a particularly high level of resistance.
  • a truss for a long escalator which has top chords and bottom chords with a tubular cross-section.
  • these long passenger transport systems and in particular their framework can no longer be transported in one piece from the place of manufacture to the place of use.
  • Such a truss therefore usually consists of at least two truss sections that can be connected to one another via a connection area.
  • connection area disclosed has connection plates which are welded to the face side of the upper chord or lower chord and which are provided with screw holes.
  • this construction has the disadvantage that the connecting plates either protrude into the cuboid space defined by the framework or protrude towards the surroundings.
  • the usable cross-section of the truss is massively reduced with regard to the arrangement of guide rails, the handrail return and conveyor belt return, and with protruding connecting plates either the aesthetics of the escalator are impaired or massively larger cladding parts are required to protect the connecting plates in the completed passenger transport system to hide.
  • connection plates tend to buckle (membrane stress condition) and high stress concentrations occur at the weld seams between the tubular cross-section of the lower chord and the connection plate.
  • the EP 3 150 539 A1 and WO 2018/078525 A1 disclose truss sections of trusses for passenger transport systems according to the preamble of claim 1.
  • the object of the present invention is to create a truss section of the aforementioned type whose connection area enables a maximum usable cross section of the cuboid area without increasing the overall cross section and ensures an optimized flow of forces through the connection area.
  • This task is solved by a truss section of a truss for a passenger transport system.
  • This truss section has a connection area which is formed at the front on at least one of the two ends of the truss section.
  • This connection area can be connected to the connection area of at least one further framework section.
  • the truss section contains two upper chord sections and two lower chord sections, which extend parallel to one another in the longitudinal direction of the truss section and are connected to one another by connecting struts.
  • a cuboid space is defined by the upper chord sections, lower chord sections and connecting struts assembled to form the truss section, which can be covered against the surroundings with cladding parts after assembly has been completed and in which further components of the passenger transport system such as guide rails, a conveyor belt (step belt or Pallet belt) and the like can be accommodated or arranged more.
  • the upper chord sections and the lower chord sections have a tubular cross section.
  • the connection area the upper chord sections and the lower chord sections are designed to transition from a tubular cross section to an I-shaped cross section.
  • the connection area is not simply the flat end of the upper chord section or lower chord section, but extends from its end to the point at which the tubular cross section of the upper chord section or lower chord section has a constant shape over the longitudinal extent.
  • this configuration replaces the cavity of the tubular cross section in the connection area with lateral indentations of the I-shaped cross section.
  • These indentations can then accommodate fasteners such as screws, rivets, pins, bolts and the like, with their central longitudinal axes preferably extending parallel to the longitudinal direction of the framework section or to the upper chord sections and lower chord sections. Since the I-shaped cross section is only present in the connection area, it is supported against torsional forces by the tubular cross section of the remaining upper chord section or lower chord section and is itself too short to fail due to lateral torsional buckling. In addition, by relocating the fastening means into the indentations, a very direct flow of forces can be achieved from the connection area of the truss section to the connection area of an adjoining truss section, which is firmly connected thereto.
  • profiles with symmetrical, tubular cross-sections are preferably selected for the upper chord sections and lower chord sections.
  • the upper chord section or the lower chord section has the tubular cross section of a square tube profile.
  • flat surfaces are present on the upper chord section and on the lower chord section, which significantly facilitate the manufacture of the truss section.
  • no complicated connection surfaces are required on the connecting struts connecting the upper chord sections and lower chord sections, as would be necessary with round tubes, for example.
  • the transition from the tubular cross section to the I-shaped cross section can be designed continuously by means of forming and/or molding.
  • Forming can take place, for example, by hammering, forging, pressing, deep-drawing and the like of the tubular upper chord section or lower chord section arranged in the connection area.
  • Material-depositing production methods such as 3D printing methods, build-up welding and the like can be used when molding.
  • the transition from the tubular cross-section to the I-shaped cross-section can be configured discontinuously by attaching an I-profile piece to the end face of the tubular top chord section or bottom chord section.
  • An intermediate plate is preferably inserted between the tubular upper chord section or lower chord section and the I-profile piece in order to create a more harmonious transition for the flow of forces and the necessary load-bearing weld seam length between the parts.
  • the I-profile piece does not necessarily have to have a constant shape with regard to its cross section over its longitudinal extension.
  • the I-beam may also be formed so that it has a tubular cross-section at one end and an I-beam cross-section at the other end, with a blended configuration therebetween.
  • a component designed in this way can be produced, for example, by drop forging, casting, using 3D printing and the like, and can preferably be connected to the tubular upper chord section or lower chord section by material connection techniques such as welding, gluing, soldering and the like.
  • the I-profile piece has two flanges which are arranged in mutually parallel planes and which are connected to one another by a web.
  • the I-profile piece can be made from commercially available profile steel, as defined for example in the German industrial standard DIN 1025.
  • At least one of the two flanges can be arranged asymmetrically to the web or have a recess.
  • the length of the I-profile piece should be one to five times the height of the tubular cross-section. However, it preferably corresponds to two to three times the height of the tubular cross section, particularly preferably two and a half times the height of the tubular cross section.
  • a connecting plate is fastened to the end of the upper chord or lower chord opening into the connection area, the flat extension of which is arranged orthogonally to the longitudinal direction of the truss section on the I-shaped cross section in the connection area.
  • the framework sections can be connected to one another by means of connecting elements via the connecting plates.
  • a connecting plate does not necessarily have to be attached if other accommodation options are available for the fastening means to be provided.
  • Such receptacles for screws, rivets, pins, clamps and the like can be formed in one piece on the I-shaped cross section, for example.
  • each of the connecting plates has bores for receiving the connecting elements, the central longitudinal axes of the bores being arranged parallel to the longitudinal direction of the framework section.
  • the connecting elements are subjected to tensile stress in their longitudinal extent, and not, for example, to shearing or bearing stress.
  • the hole plan for these holes should be the same.
  • the trusses are usually clad, i.e. panels are attached to the outside. Since these are quite large areas that are covered with very expensive materials such as stainless or coated steel sheets, the external dimensions of the framework should be considered be kept as small as possible, particularly with regard to its width and height. It is therefore particularly important that no parts such as the connecting plates protrude beyond the side surfaces of the upper and lower chords in the area of the truss areas to be clad. Preferably, therefore, at least those surfaces of the connecting plate and, if present, also of the intermediate plate and the I-profile piece that face away from the surroundings of the cuboid space and extend in the longitudinal direction are arranged flush with the corresponding side surfaces of the upper chord section or the lower chord section.
  • connection plate of the upper chord section can be connected to the connection plate of the lower chord section by a vertical strut in the connection area of the framework section.
  • the hole plans of the two connecting plates can be fixed to one another, so that no adjustment work is required when assembling the truss sections to form a truss.
  • a truss of a passenger transport system has at least two truss sections of the type mentioned above, with each adjoining truss section being firmly connected to one another in the connection area by fastening means.
  • a truss can also be divided into three or more truss sections.
  • the middle truss sections each have the described connection areas formed on the face side at both of their ends.
  • the figure 1 shows a schematic side view of a passenger transport system 1 designed as an escalator or moving walkway, which connects a first floor E1 to a second floor E2 of a building 3.
  • the passenger transport system 1 has a truss 11 which is composed of two truss sections 13 , 15 .
  • the truss 11 is supported on the floors 5, 7 of the floors E1, E2 of the building 3 via two support brackets 17 arranged on the front side and spans the space 9 existing between the floors E1, E2 like a bridge.
  • the framework 11 supports all other components of the passenger transport system 1 in a load-bearing manner and supports them on the structure 3 .
  • truss 11 shown has two truss sections 13, 15, these are connected to one another at the point designated as section A by means of connecting regions 31.
  • detachable connecting means such as high-strength screws are used to connect the connecting areas 31 of two truss sections 13, 15.
  • the figure 2 shows the in the figure 1 specified section A in an enlarged, three-dimensional representation.
  • the structure made up of upper chords 21 , lower chords 23 and connecting struts 25 is characteristic of trusses 11 .
  • This structure essentially comprises two truss side parts 27 arranged parallel to one another, 29, each of these framework side parts 27, 29 being formed from an upper chord, lower chord and connecting struts 25 arranged in between in a vertical plane.
  • the latticework side parts 27, 29 are connected to one another in the area of the lower chords 23 by further connecting struts 25 extending between these side parts 27, 29, so that the latticework 11 has a U-shaped cross section.
  • the two framework side parts 27, 29 are also connected to one another at about half the height between the upper chord 21 and the lower chord 23 by further connecting struts 25.
  • these connecting struts 25 are referred to as uprights, diagonal struts, cross struts, ground struts and the like in specialist circles.
  • the figure 2 also the interconnected connecting areas 31 of both truss sections 13, 15 in a first variant.
  • the entire composite that is to say the connection areas 31 firmly connected to one another by connection means 47, is usually referred to as a truss joint.
  • the truss 11 is divided into truss sections 13, 15, the upper chords 21 and lower chords 23 are also divided, so that the parts specifically belonging to a truss section 13, 15 are referred to below as upper chord section 21A, 21B or lower chord section 23A, 23B.
  • each truss section 13, 15 has a connection region 31 which is formed on one of the two ends of the truss section 13, 15 on the face side. For reasons of clarity, only the upper truss section 15 adjoining floor 2 is described below.
  • the upper truss section 15 includes two upper chord portions 21B and two lower chord portions 23B, respectively, which extend parallel to each other in the longitudinal direction of the upper truss section 15 and are connected to each other by the connecting struts 25 .
  • a cuboid space 71 is marked out by the upper chord sections 21B, lower chord sections 23B and connecting struts 25 joined together to form the upper truss section 15. After the installation of the components of the passenger transport system 1 to be arranged in the cuboid space 71, this space can be covered from the environment with cladding parts (not shown).
  • the upper chord sections 21B and the lower chord sections 23B have the tubular cross-section of a square tube. Furthermore, in the connection area 31 the upper chord sections 21B and the lower chord sections 23B are designed to transition from a tubular cross section into an I-shaped cross section.
  • the transition from the tubular cross section to the I-shaped cross section is designed discontinuously by attaching an I profile piece 33 to the tubular upper chord section 21B or lower chord section 23B at the front.
  • An intermediate plate 37 is inserted between the tubular upper chord section 21B or lower chord section 23B and the I-profile piece 33 in order to create a more harmonious transition for the flow of forces and the necessary load-bearing weld seam length between these parts.
  • the I-profile piece 33 has two flanges 41, 43 which are arranged in mutually parallel planes and which are connected to one another by a web 45.
  • the I-profile piece 33 can be made from commercially available profile steels, such as those defined in the German Industrial Standard DIN 1025, for example.
  • the lower truss section 13 adjoining floor 1 is generically constructed like the upper truss section 15 described above.
  • At least one of the two flanges 41, 43 can be arranged asymmetrically to the web 45 and/or have a recess 49.
  • the length L I of the I-profile piece 33 should correspond to one to five times the height H P of the tubular cross-section of the lower flange 23 or upper flange 21 in order to ensure sufficient torsional rigidity of the upper flange 21 and lower flange 23 and sufficient clearance for the fastening means 47.
  • figure 2 corresponds to the length L I of the I-profile piece 33 of two and a half times the height H P of the tubular cross-section.
  • a connecting plate 39 is provided on the end of the I-profile piece 33 in the connecting region 31 of the upper chord section 21A, 21B.
  • a connecting plate 35 also forms the end of the lower chord section 23A, 23B.
  • the connecting plates 35, 39 thus adjoin the I-shaped cross section of the I-profile piece 33 with their flat extension orthogonal to the longitudinal direction of the framework section 13, 15.
  • the framework sections 13 , 15 can be firmly connected to one another by means of the connecting elements 47 via these connecting plates 35 , 39 .
  • the intermediate plate 37 forming the connection area 31, the I-profile piece 33 and the connection plate 35, 39 can be connected to the tubular upper chord section 21A, 21B or lower chord section 23A, 23B by material connection techniques such as welding, gluing, soldering and the like.
  • connection plate 39 of the upper chord section 21A, 21B is connected to the connection plate 35 of the lower chord section 23A, 23B by a vertical strut 55.
  • the hole plans of the two connecting plates 35, 39 described below can be spatially fixed to one another, so that no adjustment work is required when assembling the truss sections 13, 15 to form a truss 11.
  • FIG Figure 3A The Indian figure 2 indicated cross section Y through the connecting area 31 of the lower flange section 23A is in FIG Figure 3A shown in the figure 2 indicated cross-section X through the connecting area 31 of the upper chord section 21A is in FIG Figure 3B shown.
  • the two Figures 3A and 3B are described together below.
  • Each of the connecting plates 35, 39 has bores 51 for receiving the connecting elements 47, the central longitudinal axes of the bores 51 being parallel to the longitudinal direction of the framework sections 13, 15 (see figure 2 ) are arranged.
  • the connecting elements 47 are subjected to tensile stress in their longitudinal extent and not, for example, to shearing or bearing stress.
  • a flat profile 53 is attached to the side of the upper chord section 21A or lower chord section 23A; preferably welded. This includes the connection area 31 and extends as in FIG figure 2 shown, from the intermediate plate 37 at least over a certain area along the upper chord section 21A, 21B or lower chord section 23A, 23B.
  • the centroid S 1 of the upper chord section 21A, 21B or lower chord section 23A, 23B is shifted closer to the centroid S 2 of the I-profile piece 33.
  • the torsional moments and thus the risk of lateral torsional buckling can be further reduced in the connection area 31 .
  • connection area 81 shows a three-dimensional representation of a connection area 81 in a second embodiment based on the upper chord 21 and FIG Figures 5A to 5C the one in the figure 4 indicated cross-sections U, V, W of the connection area 81.
  • the second embodiment of the connection area 81 has the same features relevant to the invention as the first embodiment of the connection area 31.
  • the transition from the tubular cross section to the I-shaped cross section is not continuously configured by attaching an I-profile piece 33, but by means of reshaping and/or molding.
  • Forming can be done, for example, by hammering, forging, pressing, deep-drawing and the like of the tubular upper chord section 21A, 21B arranged in the connection area 81.
  • Material-depositing production methods such as 3D printing methods, build-up welding and the like can be used when molding.
  • connection area 81 By forming lateral indentations 82 on the tubular upper chord section 21A, 21B, the square tubular cross-section in the connection area 81 continuously changes into the I-shaped cross-section, as is shown schematically in FIGS Figures 5A, 5B and 5C is shown.
  • a connecting plate 39 arranged on the face side of the upper flange section 21A, 21B is provided for receiving the fastening means 47 .
  • the lower chord sections 23A, 23B can also be provided with connecting regions 81 of the second embodiment in the same way.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Escalators And Moving Walkways (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP20704896.8A 2019-02-27 2020-02-18 Fachwerksektions-verbindungsbereich Active EP3931142B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19159574 2019-02-27
PCT/EP2020/054182 WO2020173753A2 (de) 2019-02-27 2020-02-18 Fachwerksektions-verbindungsbereich

Publications (2)

Publication Number Publication Date
EP3931142A2 EP3931142A2 (de) 2022-01-05
EP3931142B1 true EP3931142B1 (de) 2023-04-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20704896.8A Active EP3931142B1 (de) 2019-02-27 2020-02-18 Fachwerksektions-verbindungsbereich

Country Status (10)

Country Link
US (1) US11913215B2 (zh)
EP (1) EP3931142B1 (zh)
KR (1) KR20210129629A (zh)
CN (1) CN113165850B (zh)
AU (1) AU2020227162B2 (zh)
BR (1) BR112021008019A2 (zh)
CA (1) CA3117425A1 (zh)
SG (1) SG11202104198QA (zh)
TW (1) TW202045428A (zh)
WO (1) WO2020173753A2 (zh)

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Publication number Priority date Publication date Assignee Title
CN111646351A (zh) * 2020-07-20 2020-09-11 通力电梯有限公司 桁架底板的接头组件和自动扶梯或自动人行步道桁架
WO2024008508A1 (de) 2022-07-05 2024-01-11 Inventio Ag Tragwerk mit einer ausrichtungsvorrichtung für tragwerksektions- verbindungsbereiche

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WO2020173753A2 (de) 2020-09-03
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CA3117425A1 (en) 2020-09-03
BR112021008019A2 (pt) 2021-09-21
AU2020227162B2 (en) 2023-07-13
US11913215B2 (en) 2024-02-27
CN113165850A (zh) 2021-07-23
SG11202104198QA (en) 2021-05-28
AU2020227162A1 (en) 2021-06-24
EP3931142A2 (de) 2022-01-05
CN113165850B (zh) 2024-04-16
US20220145610A1 (en) 2022-05-12

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