WO2022213216A1 - Pont modulaire transportable - Google Patents

Pont modulaire transportable Download PDF

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Publication number
WO2022213216A1
WO2022213216A1 PCT/CA2022/050552 CA2022050552W WO2022213216A1 WO 2022213216 A1 WO2022213216 A1 WO 2022213216A1 CA 2022050552 W CA2022050552 W CA 2022050552W WO 2022213216 A1 WO2022213216 A1 WO 2022213216A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
transverse
longitudinal frame
frame members
hubs
Prior art date
Application number
PCT/CA2022/050552
Other languages
English (en)
Inventor
Shawn Beamish
John Hillman
Marlin Belanger
Original Assignee
Snbc Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Snbc Inc. filed Critical Snbc Inc.
Priority to CA3214946A priority Critical patent/CA3214946A1/fr
Priority to EP22783752.3A priority patent/EP4320310A1/fr
Priority to AU2022255470A priority patent/AU2022255470A1/en
Publication of WO2022213216A1 publication Critical patent/WO2022213216A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure

Definitions

  • the present invention relates to a prefabricated, modular, transportable bridge system.
  • the invention comprises a prefabricated, modular bridge which can be transported, assembled and disassembled as needed.
  • the bridge system may comprise any combination of elements or features as described below.
  • the present invention comprises a modular system for forming a roadway surface of a bridge comprising a plurality of transversely spaced apart longitudinal frame members supported on foundation elements.
  • the modular system comprises: (a) a plurality of roadway deck panels; (b) a plurality of longitudinally spaced apart transverse hubs, wherein each of the transverse hubs defines a transverse ledge for supporting an end of one of the roadway deck panels; and (c) a plurality of transversely spaced apart hub attachment clamps attached to each one of the transverse hubs.
  • Each of the hub attachment clamps is adapted for clamping a top flange of one of the longitudinal frame members against the transverse hub.
  • Each of the hub attachment clamps is movable transversely relative to the transverse hub to selectively disengage or engage the top flange of one of the longitudinal frame members.
  • the present invention comprises a module for use with a roadway deck panel to form a portion of a roadway surface of a bridge comprising a plurality of transversely spaced apart longitudinal frame members supported on foundation elements.
  • the module comprises: (a) a transverse hub defining a transverse ledge for supporting an end of one of the roadway deck panels; and (b) a plurality of transversely spaced apart hub attachment clamps attached to the transverse hub.
  • Each of the hub attachment clamps is adapted for clamping a top flange of one of the longitudinal frame members against the transverse hub.
  • Each of the hub attachment clamps is movable transversely relative to the transverse hub to selectively disengage or engage the top flange of one of the longitudinal frame members.
  • the present invention comprises a method for forming a roadway surface of a bridge comprising a plurality of transversely spaced apart longitudinal frame members supported on foundation elements.
  • the method comprising the steps of: (a) positioning a plurality of transverse hubs longitudinally spaced apart from each other along the longitudinal frame members, wherein each of the transverse hubs has a plurality of transversely spaced apart hub attachment clamps attached to the transverse hub; (b) for each of the transverse hubs, moving the attached hub attachment clamps transversely relative to the transverse hub to engage a top flange of one of the longitudinal frame members; (c) fixing the longitudinal positions of the transverse hubs along the frame members by using the hub attachment clamps to clamp the top flanges of the longitudinal frame members against the transverse hubs; and (d) for each adjacent pair of the transverse hubs, placing a roadway deck panel between the transverse hubs, with the ends of the roadway deck panel supported by transverse ledges defined by the transverse hubs.
  • the modular system, the module, and the method may be used to assemble a bridge that crosses a valley at essentially a right angle.
  • the ability to adjust the longitudinal position of the transverse hubs along the frame members allows the longitudinal distance between the longitudinal frame members and the ends of the longitudinal frame members to differ for different longitudinal frame members. This may make it convenient to assemble a bridge that crosses a valley at an oblique angle, such as shown in Figure 1 A.
  • Embodiments of the modular system, the module, or the method may comprise one or a combination of the following features or steps.
  • a threaded fastener may be used to apply a force to the hub attachment clamp for clamping the top flange of the one of the longitudinal frame members against the transverse hub.
  • the transverse hub may define a slot, wherein the threaded fastener extends through the slot and is movable transversely within the slot.
  • the threaded fastener may comprise a bolt comprising a bolt head, wherein the bolt head is accessible from above the transverse hub.
  • Each of the hub attachment clamps may have an L-shaped cross-sectional shape comprising a vertical leg and a horizontal leg, wherein the top flange of the one of the longitudinal frame members is disposed between a bottom surface of the transverse hub and horizontal leg.
  • Each of the transverse hubs may comprise a hub bottom flange plate defining the transverse ledge.
  • Each of the transverse hubs may comprise a hub top flange cover plate removably attachable by cover plate threaded fasteners to the remainder of the transverse hub to clamp the end of one of the roadway deck panels between the hub bottom flange plate and the hub top flange cover plate.
  • the present invention comprises an assembly for splicing together a pair of longitudinal frame members of a bridge.
  • the assembly comprises, for each one of the longitudinal frame members, a bearing support attached to the one of the longitudinal frame members between a top flange and a bottom flange of the one of the longitudinal frame members, wherein the bearing support defines a bearing support aperture.
  • the assembly further comprises an anchor bolt extending through the bearing support aperture of each of the bearing supports, and a nut at each end of the anchor bolt for tensioning the anchor bolt and bearing against one of the bearing supports.
  • the bearing support comprises a weldment comprising a transverse bearing plate defining the bearing support aperture, and at least one longitudinal stiffener plate extending from the bearing plate.
  • the present invention comprises a modular bridge system comprising: (a) a longitudinal frame member to be supported by foundation elements, and comprising a top flange, a bottom flange, and a vertical web extending between the top flange and the bottom flange, and defining a framed opening; and (b) an external reinforcing assembly comprising: (i) a pair of longitudinal tendons; and (ii) an anchor block for anchoring the longitudinal tendons on opposite sides of the vertical web, wherein the anchor block is received in the framed opening, and bears against the vertical web.
  • the present invention comprises a spacer for deviating a longitudinal tendon of an external tension reinforcing assembly from a bottom of a longitudinal frame member of a bridge.
  • the spacer comprises a plurality of members that are adapted to be bolted together to form a stack, wherein a number of the members selected to form the stack may be varied to vary a height of the stack.
  • the present invention comprises a hanger for deviating a longitudinal tendon of an external tension reinforcing assembly from a bottom of a longitudinal frame member of a bridge.
  • the hanger comprises an elongate member extending from an upper end to a lower end. The upper end defines a bolt hole for receiving a bolt to secure the hanger to the longitudinal frame member. The lower end defines a tendon aperture for receiving the longitudinal tendon.
  • Figure 1A is a plan view of an embodiment of a bridge of the present invention, extending over a waterway between two abutments.
  • Figure IB is a top perspective view of the bridge of Figure 1A.
  • Figure 2 is a top perspective view of a beam pack of the bridge of Figure IB.
  • Figure 3 is a top perspective view of a longitudinal frame end member of the beam pack of Figure 2.
  • Figure 4 is a top perspective view of a longitudinal frame center member of the beam pack of Figure 2.
  • Figure 5 is a bottom perspective view of an end portion of the longitudinal frame end member of Figure 3.
  • Figure 6 is a top perspective view of an end portion of the bridge of Figure IB, when supported on an abutment.
  • Figure 7 is a top perspective view of an end portion of the bridge of Figure IB, when supported on an intermediate pier.
  • Figure 8 is a top perspective view of an end portion of the bridge of Figure IB, when supported on an abutment.
  • Figure 9A is a top perspective view of a transverse hub of the bridge of Figure IB.
  • Figure 9B is an enlarged view of region "A" of Figure 9A.
  • Figure 10 is a top perspective view of an end portion of the bridge of Figure IB, with some of the roadway deck panels removed.
  • Figure 11 is a bottom perspective view of an intermediate portion of the bridge of Figure IB.
  • Figure 12 is a bottom perspective view of a transverse hub and hub attachment assemblies of the bridge of Figure IB.
  • Figure 13 is a top plan view of an end portion of the bridge of Figure IB, when supported on two abutments, with some of the roadway deck panels removed.
  • Figure 14 is atop perspective view of a roadway deck panel of the bridge of Figure
  • Figure 15 is an end elevation view of the longitudinal frame center member of Figure 4.
  • Figure 16 is a side elevation view of a portion of the longitudinal frame end member of Figure 3.
  • Figure 17 is a top perspective view of the longitudinal frame center member of Figure 4.
  • Figure 18 is a top perspective view of an end portion of the beam pack of Figure 2
  • Figure 19 is a top perspective view of a transverse diaphragm of the beam pack of
  • Figure 20 is a bottom perspective view of a splice connection between two longitudinal frame members.
  • Figure 21 is a bottom perspective view of half of the splice connection and one of the longitudinal frame members shown in Figure 20.
  • Figure 22 is a top perspective view of one of the top flange splice weldments shown in Figures 20 and 21.
  • Figure 23 is an exploded, top perspective view of two transverse hubs joined by a transverse hub splice.
  • Figure 24 is a side elevation view of part of the bridge of Figure IB.
  • Figure 25 is a top perspective view of an external tension reinforcing anchor block and tendons of the bridge of Figure IB.
  • Figure 26 is a side elevation view of an end portion of the longitudinal frame end member of Figure 3.
  • Figure 27 is a perspective view of a portion of the external tension reinforcing anchor block and tendons of Figure 25.
  • Figure 28 is an enlarged view of region "A" of Figure 24.
  • Figure 29 is a perspective view of a portion of a longitudinal frame end member and tension reinforcing hanger of the bridge of Figure IB.
  • Figure 30 is an elevation view of tension reinforcing hanger of Figure 29.
  • Figure 31 is an elevation view of an access ramp beam attached to a portion of the bridge of Figure IB.
  • Figure 32 is a perspective view of the access ramp beam of Figure 31.
  • Figure 33 is an elevation view of a transverse hub, traffic railing post, and pedestrian railing post of the bridge of Figure IB.
  • Figure 34 is a perspective view of a transverse hub, traffic railing post, and pedestrian railing post of the bridge of Figure IB.
  • any term or expression not expressly defined herein shall have its commonly accepted definition understood by a person skilled in the art.
  • the terms “longitudinal” and “transverse” are used to refer to directions that are perpendicular to each other, in a horizontal or substantially horizontal plane.
  • a prefabricated, modular bridge (10) comprises a plurality of beam packs (12).
  • the bridge (10) has two beam packs (12).
  • each beam pack (12) comprises two pairs of parallel, longitudinal frame end members (14) which can be extended with one or more pairs of longitudinal frame center members (16) extending longitudinally between the end members (14).
  • the beam packs (12) are supported on foundation elements comprising abutments (18, 20) as shown in Figures 1A, 6, and 8, and/or intermediate piers (22) as shown in Figure 7.
  • Figure 3 shows one of the longitudinal frame end members (14) in isolation
  • Figure 5 shows an end portion of the longitudinal frame end member (14).
  • Figure 4 shows one of the longitudinal frame center member (16) in isolation.
  • the longitudinal frame members (14, 16) are fabricated from steel, however these elements could also be fabricated from other materials with suitable strength and rigidity.
  • the beam packs (12) support a roadway surface (23) comprising a plurality of transverse hubs (24) that are securely fastened to the top flanges (26) of the longitudinal frame members (14, 16) using hub attachment clamps (28).
  • FIG. 12 shows one embodiment of the hub clamps (28).
  • Each hub clamp (28) comprises a member having an L-shaped transverse cross-section, having a vertical leg and ahorizontal leg. Threaded nuts (31) are securely attached (e.g., by welds) to the bottom surface of the horizontal leg. The apertures defined by the nuts (31) align with apertures defined by the horizontal leg of the hub clamp (28), and with transverse slots (25) defined by the hub bottom flange plate (32) of the transverse hub (24). Threaded clamp bolts (27) pass through these aligned apertures.
  • the clamp bolts (27) have bolt heads (not visible in Figure 12) that are disposed in the cavity of the transverse hub (24) defined by the hub bottom flange plate (32), the hub top flange cover plate (34), and the pair of hub webs (36).
  • the bolt heads are accessible when the hub top flange cover plate (34) is detached from the hub webs (36); the hub top flange cover plate (34) is removably attached to the hub webs (36) by fasteners, as described below. Accordingly, the bolt heads are conveniently accessible to a worker working from above the transverse hub (24).
  • the bottom surfaces of the bolt heads interface with the upper surface of the bottom flange plate (32).
  • the clamp bolts (27) can slide transversely within the slots (25) away from the centerline of the longitudinal frame members, so that the hub clamps (28) disengage from the top flanges (26) of the longitudinal frame members.
  • the hub clamps (28) are also in a "released state” that permits adjustment of a longitudinal position of the transverse hub (24) along the longitudinal frame members (14, 16).
  • the hub clamps (28) may be slid transversely toward the centerline of the longitudinal frame members (14, 16) so that they engage the top flanges (26) as shown in Figure 11.
  • the nut (31) may bear against the transverse hub (24) and the bolt head may bear against the hub clamp (28). It will also be appreciated that in other embodiments, the clamp bolt (27) and nut (31) combination may be modified by use of another combination of threaded fastener (e.g., a screw) and complementary threaded surfaces associated with either the transverse hub (24) or the hub clamp (28) to effect the same result.
  • threaded fastener e.g., a screw
  • the hubs (24) are placed at regular intervals along the length of the beam packs (12), with the first hub (24) being positioned perpendicular to and equidistant to the ends (13) of each of the beam packs (12).
  • the distances from the ends of the beam packs (12) to the location of the first hub attachment clamps (28) may vary across the width of the bridge (10) effectively making it possible to construct the roadway surface (23) of the modular bridge (10) at an oblique skew angle (a) (29) that deviates from a perpendicular orientation to the abutments (18, 20) and/or intermediate piers (22), as is shown in Figure 1A.
  • the longitudinal distance between the end (13a) of a first beam pack (12a) supported on a first abutment (18a) to the hub attachment clamps (28) of first hub (24) is greater than the longitudinal distance between the end (13b) of a second beam pack (12b) supported on a second abutment (18b) to the hub attachment clamps (28) of first hub (24).
  • the roadway surface (23) of the modular bridge (10) comprises roadway deck panels (30) that could be fabricated of fiber reinforced polymer (FRP) sandwich panels but could comprise other materials such as steel or concrete panels.
  • the panels (30) all comprise the same dimensions to minimize the number of components in the bridge (10).
  • a number of different sizes of panels (30) may be available to accommodate different spacing and bridge lengths.
  • custom length panels (30) may be provided to accommodate the variations in the positioning of the hubs (24) relative to the ends (13) of the beam packs (12).
  • the roadway deck panels (30) are supported on a transverse ledge (33) comprising the hub bottom flange plates (32).
  • the roadway deck panels (30) are then secured in place by a clamping force resulting from threaded fasteners (e.g., bolts or screws) extending through the hub top flange cover plates (34) into apertures defined by the outstanding legs of the hub webs (36).
  • threaded fasteners e.g., bolts or screws
  • all the hub components (32, 34, 36) comprise structural steel, but could be fabricated from other suitable materials.
  • each of the longitudinal frame members (14, 16) comprise a top flange (26), a bottom flange (38) and one or more vertical webs (40), said webs (40) being rigidly secured to the adjacent flanges (26, 38) through welding or other means.
  • the longitudinal frame end members (14) also have a sloped bottom flange (42) extending from the end of the longitudinal frame end member (14) for a length approximately equal to the length of a typical roadway deck panel (30).
  • sloped bottom flanges (42) and corresponding tapered vertical webs (42A) facilitate a reduction in the depth of the beam packs (12) at the abutments (18, 20) and/or piers (22) in order to reduce the amount of fill required to match the elevations of the roadway surface (23) with the elevations of the adjacent roadways.
  • Longitudinal frame end members (14) without the sloped beam flanges (42) could also be used without compromising other benefits or features of this invention.
  • each of the longitudinal frame members (14, 16) also comprise a plurality of intermediate transverse stiffeners (44) on each side of the framing member, extending between flanges (26, 38), and spaced equidistant from each other.
  • the transverse stiffeners (44) have a series of holes that are pre-drilled to receive transverse diaphragms (46) comprising steel channels that are positioned between a pair of longitudinal framing members (14, 16) and attached by fastening devices that could be high-strength steel bolts.
  • the transverse diaphragms (46) serve to provide lateral stability to the beam pack assemblies (12).
  • One feature of a prefabricated modular bridge system is the ability to construct bridges (10) of various lengths, widths and skew angles using a finite set of standard components that are reusable and interchangeable. Standard lengths for the modular bridge system are established that correspond to multiples of the standard lengths of the roadway deck panels (30).
  • the bridge (10) comprises beam packs (12) comprising two pairs of longitudinal frame end members (14). For bridges (10) spanning longer distances, longitudinal frame center member(s) (16) can be added.
  • the longitudinal frame members (14 or 16) are joined together utilizing conventional bolted splices on the bottom "tension" flanges (38) using a pair of tension flange top splice plates (50) positioned opposite of a tension flange bottom splice plate (52) and connected with high-strength bolts in a matter that results in a clamping force on the tension flanges (38) of the adjacent longitudinal framing members (14 or 16).
  • the webs (40) of the longitudinal framing members (14 or 16) are joined with a pair of web splice plates (54) positioned opposite of each other with high- strength bolts extending through the combination of plates (54) to provide a clamping force between the webs (40) of adjacent longitudinal framing members (14 or 16).
  • top “compression” flanges (26) of the longitudinal frame members (14 or 16) are spliced using a pair top flange tension splice rods (56) positioned on either side of the vertical webs (40) and underneath the top flange (26).
  • the tension splice rods (56) are in the form of anchor bolts, which are anchored using top flange splice weldment (58) located on the bottom sides of the top flanges (26), said weldment (58) comprising a transverse bearing plate (60) oriented perpendicular to the top flange (26) and supported by longitudinal stiffener plates (62) welded to the top flanges (26) and serving as a bearing support for the anchor bolts.
  • the bearing plate (60) defines a bearing support aperture (61) for through passage of an end of the anchor bolt.
  • the bridge (10) may also include at least one transverse hub (24) and at least one non-standard length roadway panel (30) to offer a custom span length that deviates from the standard.
  • the preferred embodiment of the modular bridge (10) might comprise two beam packs (12) and a plurality of transverse hubs (24) and roadway panels (30) whereby the width of the bridge (10) would be established by the width of the standard roadway panels (30).
  • a bridge (30) with a wider roadway surface (23) could be constructed by adding additional beam packs (12), providing adjacent transverse hubs (24) of either longer dimensions, or by joining adjacent transverse hubs with transverse hub splices (64) as shown in Figure 23, and additional roadway panels (30) placed side by side to match the dimensions of the longer transverse hub (24) or joined transvers hubs (24).
  • the framing systems can only be constructed in a manner such that the longitudinal support members and corresponding roadway surfaces must be oriented perpendicular to the abutments and intermediate piers.
  • the bridge (10) can be constructed at any skewed angle to the abutments (18, 20) and intermediate piers (22) by simply setting the beam packs (12) parallel to each other but with adjacent beam packs (12) shifted longitudinally to align with the centerlines of the supports at the abutments (18, 20) and/or intermediate piers (22).
  • transverse hubs (24) and roadway deck panels (30) can still be set transversely and perpendicular to the longitudinal frame members (14, 16) of the beam packs (12). This feature allows for much greater flexibility in the applications of the modular bridge (10), particularly in applications for disaster relief where it may be necessary to rapidly install a bridge that must conform to existing foundation elements, i.e. abutments (18, 20) and intermediate piers (22).
  • a modular bridge (10) can be constructed using only two beam packs (12), each beam pack (12) comprising two pairs of longitudinal frame end members (14) connected by transverse diaphragms (46). It is generally necessary, when increasing the length of a bridge structure, to also increase the depth of the longitudinal frame members to satisfy deflection requirements. When the same depth of longitudinal frame members is used for large variations in span lengths, then the longitudinal frame members, when used on shorter spans, are not efficiently designed.
  • the prefabricated modular bridge (10) disclosed herein avoids these inefficiencies and results in the ability to extend the span length by attaching external tension reinforcing (66) to increase the strength and stiffness of the bridge (10) while still utilizing the same longitudinal frame members (14, 16).
  • the external tension reinforcing assembly comprises, in respect to each, longitudinal frame member (14, 16), a pair of high- strength tendons (66) anchored at the ends of the longitudinal frame end members (14) using external tension reinforcing anchor blocks (68) that are positioned in framed openings (70) for the anchor blocks (68).
  • the framed openings (70) for the anchor blocks (68) comprise a framed opening web plate (72) that serves as an extension of the vertical web (42A) of the frame end member (14).
  • the opening (70) in this framed opening web plate (72) is bounded on one side by an anchor block bearing plate (74) that bears on the termination of the vertical webs (40) and is also cut to tightly fit between the top flanges (26) and bottom flanges (38) of the longitudinal end frame members (14).
  • Conventional bearing stiffeners (76) are positioned on the opposite side of the framed opening (70) for the anchor blocks (68) and serve as the bearing stiffeners that transfer the reactions of the beam packs (12) to the piers (22) and/or abutments (18, 20).
  • the external tension reinforcing anchor also includes pairs of tension anchor longitudinal stiffeners (78) that bear against the anchor block bearing plate (74) to transmit the external tension reinforcing force into the webs (42A) of the longitudinal end frame members (40).
  • the external tension reinforcing comprises high-strength steel strand tendons (80) anchored in a conventional multi-strand anchor plates as is well known in the art of post-tensioning systems.
  • the high- strength steel strand tendons (80) are inserted into steel ducts (82) that are sequentially coupled together over the lengths of the assembled beam packs (12) and also serve as a tension member contributing to the overall external tension reinforcing.
  • the high strength steel strand tendon anchor plates (74) bear directly against the anchor blocks (68) positioned in the framed openings (70) with one tendon (66, 80) on either side of the vertical webs (14) of the longitudinal frame members (14, 16).
  • the ends of the tendons (66, 80) generally follow an alignment that is parallel to and along the same angle as the sloped bottom flange (42) for the length of approximately two panels (30).
  • the tendon profde is altered to be parallel to the horizontal portion of the bottom flanges (38) of the longitudinal frame members (16) using a deviation saddle (84) that is attached to the bottom flanges (38) of the longitudinal frame members (14, 16).
  • the deviation saddle (84) comprises a bent section of the steel ducts (82) that is also threaded to accommodate coupling of the steel ducts (82) for continuity over the lengths of the tendons (80).
  • the hanger (86) is an elongate member extending from an upper end to a lower end.
  • the upper end defines bolt holes (89) for receiving bolts to secure the hanger to one of the stiffeners (44) of the longitudinal frame members (14, 16).
  • the lower end defines a tendon aperture (91) for receiving the tendon (66 or 80).
  • spacers (87) that can be positioned between the deviation saddle (84) and the bottom flanges (38) of the longitudinal frame members (14, 16).
  • the spacer (87) is a series of stacked members, in the form of boxes in this embodiment, which are bolted together and allow for variable positions of the horizontal ducts (82). Adding or removing these boxes varies the height of the spacer (87), and thereby changes the position of the ducts (82).
  • All the external tension reinforcing appurtenances including; deviation saddles (84), tension reinforcing hangers (86) and spacers (87) are fabricated using the same bolt hole pattern as the tension flange bottom splice plates (52) such that the said splice plate (52) can be omitted if it conflicts with the location of a spacer (87) and the spacer (87) will serve as the tension flange bottom splice plate (52) in its stead.
  • the modular bridge system is designed to accommodate this feature using access ramp beams (88).
  • access ramp beams (88) are attached to the longitudinal end frame members (14, 16) with articulated access ramp beam hinges (90), which are attached to longitudinal end frame diaphragms (92) (see Figure IB) secured to the ends of the beam packs (12).
  • the roadway surface (23) placed on the tops of the access ramp beams (88) comprise the same transverse hubs (24) and roadway deck panels (30) used for the preferred embodiment of the bridge (10), subsequently making these components interchangeable with the main components of bridge (10).
  • the roadway surface (23) can accommodate vehicular as well as passenger traffic.
  • the roadway surface is flanked by horizontal traffic railings (94) located on either side of the delineated lane(s).
  • traffic railings (94) are supported by traffic railing posts (96) which are attached to the transverse hubs (24) with traffic railing anchor bolts (98) extending through the transverse hubs (24) and being secured to transverse railing anchor post plates (100) welded to the bottoms of the posts (96).
  • This pedestrian walkway comprises a portion of the transverse hub (24) and roadway deck panel (30) cantilevering out past one of the beam packs (12).
  • the pedestrian traffic is protected by the shared horizontal traffic railing (94).
  • fall protection is provided by a pedestrian railing (102).
  • This pedestrian railing is supported by pedestrian railing posts (104) which are attached to the transverse hubs (24) with pedestrian railing anchor bolts (108) extending through the transverse hubs (24) and being secured to pedestrian railing anchor post plates (106) welded to the bottoms of the posts (104).
  • An exemplary method of assembly may comprise the following methods. Various steps described may be optional or preferred in the circumstances.
  • Assembly site should be on firm ground with a clear, flat area. It is recommended to use 8” x 8” or larger wood dunnage for the support of the beam components as they are assembled. Position the dunnage with consideration to the room required to install splice plates and hardware. Use a laser level to ensure dunnage is level within 1 ⁇ 4”/30 ⁇ Shims may be required as assembly progresses to adjust for any settling.
  • Inspect beam packs (12) ( Figures 3, 4) in the area of their splice locations.
  • the splice surfaces ( Figures 20, 21) must be clean and only a light primer coat should be present on the surfaces.
  • the top flanges (26) ( Figure 20) are butted together and the beam pack (12) edges are flush and straight.
  • Bolts should be snug only and no gaps should be visible between top flanges (26). Check straightness of the beam pack (12) connection and snug all splice plate (50, 52, 54) bolts. There should be 1 ⁇ 4” of gap between beam packs (12) at adjoining webs (40) and bottom flanges (38). This gap must be maintained through all steps of assembly and will be present in the final product.
  • the clamp bolts (27) are snugged. Starting at one end of the transverse hub (24), tension all clamp bolts (27) to 1/3 turn past snug. At both ends of the span of the longitudinal frame members (14, 16), position a transverse hub (24) and secure it to the beam packs (12) ensuring the beam packs (12) remain straight and square. This will help maintain squareness as the hub (24) and deck panel (30) assembly progresses. Remove the hub cover plate (34) ( Figure 9) and bolts. Place the next hub (24) in position loosely with approx. 1 ” of extra space between the faces of the hubs (24) where the deck panel (30) will rest. Install the belt cushion strips on top of the 4 beam pack flanges (26) ( Figure 10) where the first panel (30) will be positioned.
  • Hub attachment clamp bolts 27 Hub attachment clamps 28 Skewed angle 29
  • Hub top flange cover plate 34 Hub webs 36
  • Bottom flange 38 Vertical web 40 Sloped bottom flange 42
  • Transverse hub splice plate 64 (wider roadway)
  • a modular bridge system having: a longitudinal support frame supported by foundation elements such as abutments or piers, a roadway surface comprising a plurality of transverse hubs and roadway deck panels on said longitudinal support frame members, said longitudinal frame members, transverse hubs and roadway deck panels being such that these standard components can be arranged to construct bridges of various lengths, widths and skew angles relative to the orientation of foundation elements.
  • a modular bridge system having: a longitudinal support frame supported by foundation elements such as abutment or piers, a roadway surface comprising a plurality of transverse hubs, roadway deck panels and external tension reinforcing comprising framed openings in the longitudinal frame end members that receive anchor beams for securing longitudinal tendons that are further supported by deviation saddles and intermediate tension reinforcing hangers that effectively allow for an increase in the longitudinal span of the bridge using the standard longitudinal framing members.
  • references in the specification to "one embodiment”, “an embodiment”, etc., indicate that the embodiment described may include a particular aspect, feature, structure, or characteristic, but not every embodiment necessarily includes that aspect, feature, structure, or characteristic. Moreover, such phrases may, but do not necessarily, refer to the same embodiment referred to in other portions of the specification. Further, when a particular aspect, feature, structure, or characteristic is described in connection with an embodiment, it is within the knowledge of one skilled in the art to affect or connect such module, aspect, feature, structure, or characteristic with other embodiments, whether or not explicitly described. In other words, any module, element or feature may be combined with any other element or feature in different embodiments, unless there is an obvious or inherent incompatibility, or it is specifically excluded.

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  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention concerne un pont modulaire préfabriqué qui peut être assemblé pour construire des ponts de différentes longueurs, largeurs et angles d'inclinaison par rapport à l'orientation d'éléments de fondation. Le pont modulaire comprend des éléments de cadre longitudinaux, et une surface de chaussée constituée de panneaux de tablier de chaussée et de moyeux transversaux. Les moyeux transversaux délimitent des rebords transversaux pour supporter des extrémités des panneaux de tablier de chaussée. Les moyeux transversaux comportent des pinces de fixation de moyeu fixées qui se déplacent transversalement par rapport aux moyeux transversaux pour dégager ou mettre en prise de manière sélective les brides supérieures des éléments de cadre longitudinaux. L'invention concerne également un ensemble pour raccorder les éléments de cadre longitudinaux, comprenant un boulon d'ancrage s'étendant entre des éléments de support de palier fixés aux éléments de cadre longitudinaux. L'invention concerne également un ensemble de renforcement externe pour le pont modulaire. L'ensemble de renforcement externe comprend des tendons longitudinaux, des blocs d'ancrage, et des éléments d'espacement et des éléments de suspension pour dévier les tendons à partir de la bride inférieure des éléments de cadre.
PCT/CA2022/050552 2021-04-09 2022-04-08 Pont modulaire transportable WO2022213216A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA3214946A CA3214946A1 (fr) 2021-04-09 2022-04-08 Pont modulaire transportable
EP22783752.3A EP4320310A1 (fr) 2021-04-09 2022-04-08 Pont modulaire transportable
AU2022255470A AU2022255470A1 (en) 2021-04-09 2022-04-08 Transportable modular bridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163173109P 2021-04-09 2021-04-09
US63/173,109 2021-04-09

Publications (1)

Publication Number Publication Date
WO2022213216A1 true WO2022213216A1 (fr) 2022-10-13

Family

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Application Number Title Priority Date Filing Date
PCT/CA2022/050552 WO2022213216A1 (fr) 2021-04-09 2022-04-08 Pont modulaire transportable

Country Status (4)

Country Link
EP (1) EP4320310A1 (fr)
AU (1) AU2022255470A1 (fr)
CA (1) CA3214946A1 (fr)
WO (1) WO2022213216A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994036A (en) * 1972-09-18 1976-11-30 Fisher Sidney L Flexible staging platform and the like
KR100522866B1 (ko) * 2003-02-19 2005-10-26 노윤근 긴장재를 사용한 콘크리트 교량 구조물의 슬래브보수보강장치 및 이를 이용한 보수보강 시공방법
US7366634B2 (en) * 2003-06-06 2008-04-29 Pacheco Pedro Alvares Ribeiro Gantry with auto-adjusting prestressing
WO2012059096A1 (fr) * 2010-10-13 2012-05-10 Krauss-Maffei Wegmann Gmbh & Co. Kg Pont modulaire et procédé de construction d'un pont modulaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994036A (en) * 1972-09-18 1976-11-30 Fisher Sidney L Flexible staging platform and the like
KR100522866B1 (ko) * 2003-02-19 2005-10-26 노윤근 긴장재를 사용한 콘크리트 교량 구조물의 슬래브보수보강장치 및 이를 이용한 보수보강 시공방법
US7366634B2 (en) * 2003-06-06 2008-04-29 Pacheco Pedro Alvares Ribeiro Gantry with auto-adjusting prestressing
WO2012059096A1 (fr) * 2010-10-13 2012-05-10 Krauss-Maffei Wegmann Gmbh & Co. Kg Pont modulaire et procédé de construction d'un pont modulaire

Also Published As

Publication number Publication date
AU2022255470A1 (en) 2023-11-16
EP4320310A1 (fr) 2024-02-14
CA3214946A1 (fr) 2022-10-13

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