US3302361A - Prefabricated bridge deck unit - Google Patents

Prefabricated bridge deck unit Download PDF

Info

Publication number
US3302361A
US3302361A US404473A US40447364A US3302361A US 3302361 A US3302361 A US 3302361A US 404473 A US404473 A US 404473A US 40447364 A US40447364 A US 40447364A US 3302361 A US3302361 A US 3302361A
Authority
US
United States
Prior art keywords
member
welded
plate
plate web
plurality
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US404473A
Inventor
Jr Albert J Oudheusden
Lawrence G Adams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
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 Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Priority to US404473A priority Critical patent/US3302361A/en
Application granted granted Critical
Publication of US3302361A publication Critical patent/US3302361A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/12Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
    • E01D19/125Grating or flooring for bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/30Metal

Description

1967 A. J. OUDHEUSDEN, JR. ETAL 3,302,361

PREFABRICATED BRIDGE DECK UNIT Filed OCT.- 16, 1964 2 Sheets-Sheet 1 Fig.

INVENTORS A/berf J. Oudheusden Jn Lawrence 6. Adams Feb. 7, 1967 A. J. OUDHEUSDEN, JR. ETAL 3,30

PREFABRICATED BRIDGE DECK UNIT File d Oct. 16, 1964 2 Sheets-Sheet 2 h I I! INVENTORS A/berf J. Oudheusaen Jr.

:5 S Lawrence 6. Adams United States Patent M 3,302,361 PREFABRICATED BRIDGE DECK UNIT Albert J. Oudheusden, Jr., and Lawrence G. Adams, Bethlehem, Pa., assignors, by mesne assignments, to Bethlehem Steel Corporation, a corporation of Delaware Filed Oct. 16, 1964, Ser. No. 404,473 4 Claims. (Cl. 52618) This invention relates to a prefabricated structural unit and more particularly to a welded metal structural unit for constructing bridges.

Most short span steel bridges being built today use either a truss or girder type of construction and usually use a poured concrete deck as the roadway. Both the truss and girder bridges require fairly heavy structural members in order to carry the dead loads imposed on the bridge by the heavy concrete deck. The truss and girder bridges also often contain a number of members which are either redundant or are stressed far below their allowable limits. Furthermore, truss and girder bridges are assembled primarily in the field resulting in long delays in opening the spans to traffic.

It is therefore an object of our invention to provide a strong but lightweight structural unit suitable for building bridges in which each member of the structural unit is worked close to the allowable limit of its load bearing capacity.

It is a. further object of our invention to provide a prefabricated structural unit which will permit a bridge superstructure to be erected in less than one day.

It is a still further object of our invention to provide a structural unit in a bridge in which all the members are designed and positioned to contribute to the overall live load bearing capacity of the bridge.

It is a still further object of our invention to provide a structural unit which can be fabricated using modern high speed automatic welding techniques.

With these general objects in view and such others as may hereinafter appear, the invention resides in a prefabricated structural unit comprising a pair of longitudinal stringers, a compression deck member and a plurality of transverse members welded together to form an integral unit.

In the drawings illustrating the preferred embodiment of the invention:

FIGURE 1 is an isometric view partially in section of one of the prefabricated structural units embodying our invention.

FIGURE 2 is a sectional view taken at approximately midspan of a bridge constructed using four of the prefabricated structural units embodying our invention.

FIGURE 3 is a fragmentary sectional view showing the fabrication of the compression deck member and the transverse members.

Referring to FIGURE 1, the prefabricated structural unit 1 comprises a pair of parallel longitudinal stringers 2, a continuous deck member 3 welded to the top edges of the longitudinal stringers 2 and a plurality of transverse members 4 welded to the underside of the continuous deck member 3 and extending continuously through slots 5 formed in the longitulinal stringers 2 and welded thereto.

The longitudinal stringers 2 are fabricated from a pair of metal plates welded together at right angles to each other to form an inverted T. Plate 6 serves as a bottom tension flange member and plate 7 serves as a web member. Each of these plates is of a length substantially equal to the free span of the bridge to be constructed using the prefabricated structural units 1. The top edge of plate web member 7 is welded to the underside of deck member 3.

3 302,361 Patented Feb. 7, 1967 The continuous deck 3 is comprised of a rectangular metal plate 8 welded to the top surfaces of a rectangular corrugated metal sheet 9 to form a compression member which is rigid in two directions. Rectangular metal plate 8 and rectangular corrugated metal sheet 9 are preferably of a length substantially equal to the free span of the bridge to be built using the prefabricated structural units 1. Because of the cooperation among the various members in the prefabricated structural unit 1, metal plate 8 and corrugated sheet 9 can be formed from relatively thin material, thus providing a lightweight deck member 3.

The trapezoidal shape of corrugation was found to be the most desirable considering both the fabrication and strength viewpoints. A non'symmetrical cross section having the valleys wider than the crests of the corrugations is used to provide a lower neutral axis in the deck member 3 than would be the case if a symmetrical corrugated sheet were used, with a minimum amount of metal.

In fabricating the prefabricated structural unit 1, the corrugations of sheet 9 are arranged parallel to the longitudinal stringers 2 as shown in FIGURE 1.

Transverse members 4 are shown in FIGURE 1 as rectangular metal bars extending the full width of the prefabricated structural unit 1, at right angles to longitudinal stringers 2. Structural shapes other than rectangular bars such as T sections, channels or bulb channels, could also be used for transverse members 4. The transverse members extend through vertical slots 5 formed in the plate web members 7 of the longitudinal stringers 2. The ends of transverse members 4 are cantilevered from the stringers 2 and are punched with holes 10 to facilitate the bolting together of several of the prefabricated structural units 1 into a bridge as shown in FIG- URE 2. Vertical slots 5 have enlargements 11 at the ends to reduce stress concentrations resulting from loads being applied to deck member 3. The transverse members 4 are fastened to the underside of deck member 3 to provide lateral support for deck member 3 by welding the lower face of the valleys in corrugated sheet 9 to alternate sides of the top edges of transverse members 4.

FIGURE 2 illustrates four of the prefabricated structural units 1 arranged in side-by-side relationship on abutments 12 to form a bridge. One of the prefabricated structural units 1 has been raised slightly on the abutment by members 13 to provide a walkway at one side of the bridge. Adjacent units 1 are joined by using splice plates 14- and bolts inserted in holes 10 of the transverse members 4. These joints need be designed only for simple shear stresses. The longitudinal stringers are further tied together using horizontal angle struts 15 bolted between the lower portions of web members 7 and diagonal struts 17 at the center and ends. This bolting plus the welding together of the abutting edges of plates 8 constitutes the only field assembly work required in assembling the bridge.

While in some cases the rectangular metal plate 8 of deck member 3 may serve as the wearing surface for traffic, it is preferable to place a thin layer of bituminous concrete 16 or the like to the top surface of plate 8.

Eight structural units 1 for a bridge 32 feet wide having two spans of 56 feet each, were placed into position in approximately four hours. Each of the units 1 was 56 feet long and 8 feet wide. The deck member 3 consisted of a 7 flat steel plate 8 welded to the top surface of a A thick corrugated steel sheet 9. Longitudinal stringers 2 were fabricated using a 36" x steel plate for web member 7 and a 1" X 11" steel plate for tension flange member 6. 1" x 9" rectangular steel plates served as transverse members 4.

As many possible embodiments may be made of the invention without departing from the scope thereof, it is to be understood that all matter set forth herein or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

We claim:

1. A prefabricated structural unit comprising:

(a) a pair of parallel longitudinal stringers each con sisting of a bottom tension flange member and a plate web member having a plurality of vertical slots having enlarged ends formed therein at spaced inter vals along the length thereof,

(b) a continuous deck compression member welded to the top edges of the plate web members, the continuous deck compression member comprising a corrugated metal sheet having a plurality of crests and valleys formed therein, the valleys being wider than the crests and extending in a direction parallel to the longitudinal stringers, and a metal plate welded to the crests of the corrugated metal sheet, and

(c) a plurality of transverse members extending continuously through and cantilevered from the slots formed in the plate web members, and welded solely to the plate web member and to the valleys of the corrugated metal sheet.

2. A prefabricated structural unit comprising:

(a) a pair of parallel longitudinal stringers each consisting of a bottom tension flange member and a plate Web member having a plurality of vertical slots having enlarged ends formed therein at spaced intervals along the length thereof,

(b) a continuous deck compression member welded to the top edges of the plate web members, the continuous deck compression member comprising a series of spaced longitudinal upwardly facing cells of trapezoidal cross section welded to the underside of a flat plate member,

(c) a plurality of transverse members extending continuously through and cantilevered from the slots formed in the plate web members, and welded solely to the plate web members and to the bottoms of 4- the longitudinal cells of the compression member.

3. A fabricated structural unit comprising:

(a) at least one longitudinal stringer consisting of a bottom tension flange member and a plate Web member having a plurality of vertical slots having enlarged ends formed therein at spaced intervals along the length thereof,

(b) a continuous deck compression member welded to the top edge of the plate web member of each stringer, the continuous deck compression member comprising a series of spaced longitudinal upwardly facing cells of trapezoidal cross section Welded to the underside of a flat plate member,

(0) a plurality of transverse members extending continuously through and cantilevered from the slots formed in the plate Web member, and welded solely to the plate web member of each stringer and to the bottoms of the longitudinal cells of the compression member.

4. A fabricated structural unit comprising:

(a) a plurality of longitudinal stringers each consisting of a bottom tension flange member and a plate web member having a plurality of vertical slots having enlarged ends formed therein at spaced intervals along the length thereof,

(b) a continuous deck compression member welded to the top edges of the plate Web members, the continuous deck compression member comprising a series of spaced longitudinal upwardly facing cells of trapezoidal cross section welded to the underside of a flat plate member,

(c) a plurality of transverse members extending continuously through and cantilevered from the slots formed in the plate web members, and welded solely to the plate Web members and to the bottoms of the longitudinal cells of the compression member.

No references cited.

RICHARD W. COOKE, JR., Primary Examiner.

Claims (1)

1. A PREFABRICATED STRUCTURAL UNIT COMPRISING: (A) A PAIR OF PARALLEL LONGITUDINAL STRINGERS EACH CONSISTING OF A BOTTOM TENSION FLANGE MEMBER AND A PLATE WEB MEMBER HAVING A PLURALITY OF VERTICAL SLOTS HAVING ENLARGED ENDS FORMED THEREIN AT SPACED INTERVALS ALONG THE LENGTH THEREOF, (B) A CONTINUOUS DECK COMPRESSION MEMBER WELDED TO THE TOP EDGES OF THE PLATE WEB MEMBERS, THE CONTINUOUS DECK COMPRESSION MEMBER COMPRISING A CORRUGATED METAL SHEET HAVING A PLURALITY OF CRESTS AND VALLEYS FORMED THEREIN, THE VALLEYS BEING WIDER THAN THE CRESTS AND EXTENDING IN A DIRECTION PARALLEL TO THE LONGITUDINAL STRINGERS, AND A METAL PLATE WELDED TO THE CRESTS OF THE CORRUGATED METAL SHEET, AND (C) A PLURALITY OF TRANSVERSE MEMBERS EXTENDING CONTINUOUSLY THROUGH AND CANTILEVERED FROM THE SLOTS FORMED IN THE PLATE WEB MEMBERS, AND WELDED SOLELY TO THE PLATE WEB MEMBER AND TO THE VALLEYS OF THE CORRUGATED METAL SHEET.
US404473A 1964-10-16 1964-10-16 Prefabricated bridge deck unit Expired - Lifetime US3302361A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US404473A US3302361A (en) 1964-10-16 1964-10-16 Prefabricated bridge deck unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404473A US3302361A (en) 1964-10-16 1964-10-16 Prefabricated bridge deck unit

Publications (1)

Publication Number Publication Date
US3302361A true US3302361A (en) 1967-02-07

Family

ID=23599742

Family Applications (1)

Application Number Title Priority Date Filing Date
US404473A Expired - Lifetime US3302361A (en) 1964-10-16 1964-10-16 Prefabricated bridge deck unit

Country Status (1)

Country Link
US (1) US3302361A (en)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425077A (en) * 1966-09-09 1969-02-04 Demag Ag Bridge roadway construction
US3935687A (en) * 1973-04-18 1976-02-03 Maark Corporation Platform tennis court
US4120065A (en) * 1977-12-15 1978-10-17 Eugene W. Sivachenko Lightweight modular, truss-deck bridge system
US4145153A (en) * 1978-03-22 1979-03-20 The Port Authority Of New York And New Jersey Method of replacing a roadway
US4200946A (en) * 1978-11-16 1980-05-06 Westland Aircraft Limited Load-supporting structures
US4285173A (en) * 1979-12-26 1981-08-25 Multuloc Corporation Building deck structure
US4300320A (en) * 1979-11-13 1981-11-17 Havens Steel Company Bridge section composite and method of forming same
US4411113A (en) * 1980-03-21 1983-10-25 Claudius Peters Ag Prefabricated aeration block for silo bases
US4461232A (en) * 1981-07-10 1984-07-24 Proform, Inc. Lightweight marine barge cover
US4706424A (en) * 1986-04-01 1987-11-17 Garapick Ronald T Floor module structure
US4706319A (en) * 1978-09-05 1987-11-17 Eugene W. Sivachenko Lightweight bridge structure
US4831675A (en) * 1988-05-16 1989-05-23 Nedelcu Lucian I Orthotropic steel plate deck bridge with a double rib system
US5794402A (en) * 1996-09-30 1998-08-18 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US5992112A (en) * 1996-08-27 1999-11-30 Josey Industrial Technologies, Inc. Modular building floor structure
US6023806A (en) * 1996-09-30 2000-02-15 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6081955A (en) * 1996-09-30 2000-07-04 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6212839B1 (en) * 1994-11-03 2001-04-10 Macgregor (Swe) Ab Design element for building structures
US6401286B1 (en) * 2000-05-08 2002-06-11 Gregory A. Brenn Bridge deck construction forms
US6588171B2 (en) 2000-11-29 2003-07-08 Scienda, Llc Cellular-core structural panel, and building structure incorporating same
US20050066609A1 (en) * 2003-09-26 2005-03-31 Olah Timothy J. Preassembled roof and floor deck panel system
US20090077758A1 (en) * 2007-09-21 2009-03-26 Groupe Canam Inc. Bridge deck panel
US20100115881A1 (en) * 2007-02-15 2010-05-13 Koutarou Inose Stiffened plate and method of manufacturing the same
US20110179736A1 (en) * 2008-07-14 2011-07-28 Construction Innovation Limited Concrete matrix structure
US20140318056A1 (en) * 2012-05-09 2014-10-30 Farid Abugattas Prestressed, cambered and composite cellular steel decking floor system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425077A (en) * 1966-09-09 1969-02-04 Demag Ag Bridge roadway construction
US3935687A (en) * 1973-04-18 1976-02-03 Maark Corporation Platform tennis court
US4120065A (en) * 1977-12-15 1978-10-17 Eugene W. Sivachenko Lightweight modular, truss-deck bridge system
FR2411922A1 (en) * 1977-12-15 1979-07-13 Sivachenko Eugene modular bridge
US4145153A (en) * 1978-03-22 1979-03-20 The Port Authority Of New York And New Jersey Method of replacing a roadway
US4706319A (en) * 1978-09-05 1987-11-17 Eugene W. Sivachenko Lightweight bridge structure
US4200946A (en) * 1978-11-16 1980-05-06 Westland Aircraft Limited Load-supporting structures
US4300320A (en) * 1979-11-13 1981-11-17 Havens Steel Company Bridge section composite and method of forming same
US4285173A (en) * 1979-12-26 1981-08-25 Multuloc Corporation Building deck structure
US4411113A (en) * 1980-03-21 1983-10-25 Claudius Peters Ag Prefabricated aeration block for silo bases
US4461232A (en) * 1981-07-10 1984-07-24 Proform, Inc. Lightweight marine barge cover
US4706424A (en) * 1986-04-01 1987-11-17 Garapick Ronald T Floor module structure
US4831675A (en) * 1988-05-16 1989-05-23 Nedelcu Lucian I Orthotropic steel plate deck bridge with a double rib system
US6212839B1 (en) * 1994-11-03 2001-04-10 Macgregor (Swe) Ab Design element for building structures
US5992112A (en) * 1996-08-27 1999-11-30 Josey Industrial Technologies, Inc. Modular building floor structure
US6467118B2 (en) 1996-09-30 2002-10-22 Martin Marietta Materials Modular polymeric matrix composite load bearing deck structure
US6023806A (en) * 1996-09-30 2000-02-15 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6070378A (en) * 1996-09-30 2000-06-06 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6081955A (en) * 1996-09-30 2000-07-04 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6092350A (en) * 1996-09-30 2000-07-25 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6108998A (en) * 1996-09-30 2000-08-29 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US5794402A (en) * 1996-09-30 1998-08-18 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US20030046779A1 (en) * 1996-09-30 2003-03-13 Martin Marietta Materials Modular polymeric matrix composite load bearing deck structure
US6044607A (en) * 1996-09-30 2000-04-04 Martin Marietta Materials, Inc. Modular polymer matrix composite support structure and methods of constructing same
US6401286B1 (en) * 2000-05-08 2002-06-11 Gregory A. Brenn Bridge deck construction forms
US6588171B2 (en) 2000-11-29 2003-07-08 Scienda, Llc Cellular-core structural panel, and building structure incorporating same
US20050066609A1 (en) * 2003-09-26 2005-03-31 Olah Timothy J. Preassembled roof and floor deck panel system
US20100115881A1 (en) * 2007-02-15 2010-05-13 Koutarou Inose Stiffened plate and method of manufacturing the same
US8759712B2 (en) 2007-02-15 2014-06-24 Ihi Corporation Method of manufacturing a stiffened plate by hybrid laser arc welding
US20090077758A1 (en) * 2007-09-21 2009-03-26 Groupe Canam Inc. Bridge deck panel
US20110179736A1 (en) * 2008-07-14 2011-07-28 Construction Innovation Limited Concrete matrix structure
US20140318056A1 (en) * 2012-05-09 2014-10-30 Farid Abugattas Prestressed, cambered and composite cellular steel decking floor system
US9151048B2 (en) * 2012-05-09 2015-10-06 Farid Abugattas Prestressed and cambered steel decking floor system

Similar Documents

Publication Publication Date Title
US3477189A (en) Load supporting structure
US4432178A (en) Composite steel and concrete floor construction
US4318635A (en) Culvert structure having corrugated ribbing support
US4894967A (en) Fluted deck diaphragm and shear resisting member therefor
US3251167A (en) Composite concrete floor construction and unitary shear connector
US4034135A (en) Rigid structure
US4551957A (en) Building construction
US4653237A (en) Composite steel and concrete truss floor construction
US1883376A (en) Building construction
US2912940A (en) Roof construction
EP0012124B1 (en) Expansion joint element
US4189883A (en) Composite system for floor frame members
US2284898A (en) Structural system
US4115971A (en) Sawtooth composite girder
US3330087A (en) Long span, high load, composite truss joist
US4120065A (en) Lightweight modular, truss-deck bridge system
US4349996A (en) Integrated roof system
US4785600A (en) Buildup composite beam structure
US4109440A (en) Structural section
US4129917A (en) Bridge structure
US2558946A (en) Reinforced cast structure
US4300320A (en) Bridge section composite and method of forming same
US4646495A (en) Composite load-bearing system for modular buildings
US3906571A (en) Structural member of sheet material
US3686819A (en) Structural chord members for joist construction