• Methods for Removing Concrete Decks from Bridge Girders ...

    Methods for Removing Concrete Decks from Bridge Girders, TR-647 . ... and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push ...

  • EXAMPLE 6 - DECK DESIGN INCLUDING TYPE 10 MASH RAIL ...

    Girder Spacing, maximum SGdr= 11.0 ft Number of girders NGdr= 4 ea Overall Deck width Wdeck= 43.0 ft Deck slab thickness tdeck= 8 in Overhang thickness (average) tOH = 9.67 in Concrete top cover cTop= 2.0 in AASHTO T 5.10.1-1 & BDM 5.4.3 Concrete bottom cover cBot= 1.0 in AASHTO T 5.10.1-1 Wearing surface tWS = 3.0 in Concrete strength f'c= 4.5 ...

  • CHAPTER 2: BRIDGE DECK FORMS

    deck, soffits of slab bridges, deck soffits for T-beam, steel girder, precast concrete girder bridges, and deck overhangs for all bridge types. In slab bridges, the plywood soffit forms are directly attached to and supported by the falsework joists or stringers and are considered an integral part of the falsework system (see Falsework Manual).

  • GUIDELINES FOR DESIGN AND CONSTRUCTION OF DECKED …

    3.5.1 Deck Removal ... 4.5.2 Simplified Methods..... 78 4.5.3 Detailed Method ... prestressed, concrete bridge girders. This type of bridge provides benefits of rapid construction, and improved structural performance. The research was performed to

  • Standard Practice for Washing and Cleaning Concrete Bridge ...

    Concrete Bridge Decks and Substructure ... steel bridge decks and steel girders was conducted in 2012 that will help to determine the ... method of cleaning for those states that do have washing programs. The bridge deck is swept first to remove and collect dry debris. This debris collection also applies to the bearing and seat

  • Methods for Removing Concrete Decks from Bridge Girders

    Methods for Removing Concrete Decks from Bridge Girders. With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods.

  • Methods for Removing Concrete Decks from Bridge Girders ...

    Methods for Removing Concrete Decks from Bridge Girders, TR-647 Abstract With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods.

  • New Method for Repairing Damaged Concrete Bridge Girders

    May 04, 2020· New Method for Repairing Damaged Concrete Bridge Girders Researchers with the Minnesota Department of Transportation and the University of Minnesota have successfully tested a new, cost-effective method for repairing damaged bridge girders that they believe can restore them to their original shear strength or even make them stronger.

  • Precast, Prestress Bridge Girder Design Example

    The basic girder section properties are in the bridge description. 3.3.1 Effective Flange Width The effective flange width of a composite concrete deck slab …

  • Methods for removing concrete decks from bridge girders ...

    Methods for removing concrete decks from bridge girders : [tech transfer summary]. Published Date: . Language: English ... Methods for Removing Concrete Decks From Bridge Girders [PDF - 7.48 ] Published Date: Abstract: With ever tightening budgets and limitations of demolition equipment, states are looking for cost ...

  • Method of construction: Beam/Girder Bridge - YouTube

    About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ...

  • REPAIR, STRENGTHENING, AND RE-USE OF STEEL GIRDER …

    bridge crosses over I-71 in the northeast section of the City of Cincinnati, Ohio. The bridge deck has a total width of 60′-4″, which includes four lanes of vehicular traffic and 6′-10″ sidewalks on each side of the bridge. The non-composite deck is supported by seven steel I-girders spaced at 9′-2″.

  • Methods for Removing Concrete Decks from Bridge Girders ...

    With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push ...

  • Girder/Deck Connection for Rapid Removal of Bridge Decks

    for prestressed concrete bridge girders with composite cast-in-placedecks. The system utilizes the mechanical anchorage of concrete shear keys created on the top flange of a concrete girder, combined with shear reinforcement crossing the interface. The system has the advantage of facilitating future deck removal, while protecting

  • Methods for Removing Concrete Decks from Bridge Girders ...

    methods for concrete deck removal that preserve bridge superstructures and substructures. Research Methodology • Review literature about removing concrete decks from concrete and steel girders including state-of-the-art and state-of-the practice for the following: • Deck removal methods and equipment • Steel girder damage and repair

  • Section 5 Bridge Decks - New York State Department of ...

    Bridge Decks 5.1 Concrete Deck Slabs 5.1.1 Composite Design Concrete deck slabs on steel girders are almost always designed to act compositely with the girders. Composite design provides an advantage in reducing the necessary section of primary members and also serves to significantly stiff en the bridge. The composite action is attained by

  • Bridge Launching – BridgeTech

    Chapter 3 is devoted to prestressed-concrete bridges. New deck segmentation methods have been discussed along with the incremental launching construction of precast segmental highway overpasses and the analysis of alternative casting methods by process simulation. Chapter 4 deals with the launch of steel girders.

  • Evaluating the Impact of Bridge-Deck Removal on the ...

    Jun 03, 2016· Two methods, saw-cutting and jackhammering, were implemented on the Camp Creek Bridge over I-80 in Lancaster County, Nebraska, before demolition due to its functional obsolesces. Different saw-cutting and jackhammering techniques were performed for deck removal between girders and on top of girder flange. Also, two girders from the bridge were ...

  • Methods for Removing Concrete Decks From Bridge Girders

    Aug 01, 2014· Methods for Removing Concrete Decks From Bridge Girders Published Date: . Language: English [PDF-7.48 ] ... reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews ...

  • A Simplified method to minimize exterior girder rotation ...

    Mar 15, 2019· Since the concrete deck cannot provide stiffness for the bridge during deck construction, the weight of the fresh concrete was simplified as loads distributed along the bridge girders in this study, with a unit weight of 23.56 kN/m 3 (150 lb/ft 3). Additionally, the elastic modulus of steel was assumed to be 200 GPa (29,000 ksi).

  • EVALUATING THE IMPACT OF DECK REMOVAL METHOD …

    thin top flange might be disadvantageous when it comes to deck removal, as it is more susceptible to damage. Therefore there is a need to investigate the impact of deck removal methods on the performance of the supporting wide flange I-girder. In this study, two deck removal methods are presented: saw cutting and jack hammering.

  • Bridge Deck Removal using Concrete Cutting for Demolition ...

    Dec 16, 2009· This video demonstrates the process of removing a bridge deck using concrete cutting as a precision means of demolition. The work was done on Greenwood Avenu...

  • BEHAVIOR OF LINK SLAB BRIDGE GIRDERS WITH …

    slab and the rest of the bridge [4, 5, 8-20]. Several methods were proposed for analyzing the jointless deck systems [18-21]. Most of these methods depend on the finite element method. Early work considered simplified computational methods by modeling the girders and deck by two-noded isoparametric beam element and link slab by two-noded uniaxial

  • Affordable Bridge Girder End Repair Method Restores ...

    Jul 18, 2018· By load testing part of a bridge that was removed over Nine Mile Creek, researchers have proven that an innovative and cost-effective method for repairing damaged bridge girders restores them to their original strength. The findings will help MnDOT and other transportation agencies avoid lengthy traffic closures and more costly techniques when repairing other bridges.…

  • Methods for Removing Concrete Decks from Bridge Girders ...

    Methods for Removing Concrete Decks from Bridge Girders, TR-647 . ... and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push ...

  • EXAMPLE 6 - DECK DESIGN INCLUDING TYPE 10 MASH RAIL ...

    Girder Spacing, maximum SGdr= 11.0 ft Number of girders NGdr= 4 ea Overall Deck width Wdeck= 43.0 ft Deck slab thickness tdeck= 8 in Overhang thickness (average) tOH = 9.67 in Concrete top cover cTop= 2.0 in AASHTO T 5.10.1-1 & BDM 5.4.3 Concrete bottom cover cBot= 1.0 in AASHTO T 5.10.1-1 Wearing surface tWS = 3.0 in Concrete strength f'c= 4.5 ...

  • CHAPTER 2: BRIDGE DECK FORMS

    deck, soffits of slab bridges, deck soffits for T-beam, steel girder, precast concrete girder bridges, and deck overhangs for all bridge types. In slab bridges, the plywood soffit forms are directly attached to and supported by the falsework joists or stringers and are considered an integral part of the falsework system (see Falsework Manual).

  • GUIDELINES FOR DESIGN AND CONSTRUCTION OF DECKED …

    3.5.1 Deck Removal ... 4.5.2 Simplified Methods..... 78 4.5.3 Detailed Method ... prestressed, concrete bridge girders. This type of bridge provides benefits of rapid construction, and improved structural performance. The research was performed to

  • Standard Practice for Washing and Cleaning Concrete Bridge ...

    Concrete Bridge Decks and Substructure ... steel bridge decks and steel girders was conducted in 2012 that will help to determine the ... method of cleaning for those states that do have washing programs. The bridge deck is swept first to remove and collect dry debris. This debris collection also applies to the bearing and seat

  • Methods for Removing Concrete Decks from Bridge Girders

    Methods for Removing Concrete Decks from Bridge Girders. With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods.

  • Methods for Removing Concrete Decks from Bridge Girders ...

    Methods for Removing Concrete Decks from Bridge Girders, TR-647 Abstract With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods.

  • New Method for Repairing Damaged Concrete Bridge Girders

    May 04, 2020· New Method for Repairing Damaged Concrete Bridge Girders Researchers with the Minnesota Department of Transportation and the University of Minnesota have successfully tested a new, cost-effective method for repairing damaged bridge girders that they believe can restore them to their original shear strength or even make them stronger.

  • Precast, Prestress Bridge Girder Design Example

    The basic girder section properties are in the bridge description. 3.3.1 Effective Flange Width The effective flange width of a composite concrete deck slab …

  • Methods for removing concrete decks from bridge girders ...

    Methods for removing concrete decks from bridge girders : [tech transfer summary]. Published Date: . Language: English ... Methods for Removing Concrete Decks From Bridge Girders [PDF - 7.48 ] Published Date: Abstract: With ever tightening budgets and limitations of demolition equipment, states are looking for cost ...

  • Method of construction: Beam/Girder Bridge - YouTube

    About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators ...

  • REPAIR, STRENGTHENING, AND RE-USE OF STEEL GIRDER …

    bridge crosses over I-71 in the northeast section of the City of Cincinnati, Ohio. The bridge deck has a total width of 60′-4″, which includes four lanes of vehicular traffic and 6′-10″ sidewalks on each side of the bridge. The non-composite deck is supported by seven steel I-girders spaced at 9′-2″.

  • Methods for Removing Concrete Decks from Bridge Girders ...

    With ever tightening budgets and limitations of demolition equipment, states are looking for cost-effective, reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews, surveys, and workshops and performed small-scale trials and push ...

  • Girder/Deck Connection for Rapid Removal of Bridge Decks

    for prestressed concrete bridge girders with composite cast-in-placedecks. The system utilizes the mechanical anchorage of concrete shear keys created on the top flange of a concrete girder, combined with shear reinforcement crossing the interface. The system has the advantage of facilitating future deck removal, while protecting

  • Methods for Removing Concrete Decks from Bridge Girders ...

    methods for concrete deck removal that preserve bridge superstructures and substructures. Research Methodology • Review literature about removing concrete decks from concrete and steel girders including state-of-the-art and state-of-the practice for the following: • Deck removal methods and equipment • Steel girder damage and repair

  • Section 5 Bridge Decks - New York State Department of ...

    Bridge Decks 5.1 Concrete Deck Slabs 5.1.1 Composite Design Concrete deck slabs on steel girders are almost always designed to act compositely with the girders. Composite design provides an advantage in reducing the necessary section of primary members and also serves to significantly stiff en the bridge. The composite action is attained by

  • Bridge Launching – BridgeTech

    Chapter 3 is devoted to prestressed-concrete bridges. New deck segmentation methods have been discussed along with the incremental launching construction of precast segmental highway overpasses and the analysis of alternative casting methods by process simulation. Chapter 4 deals with the launch of steel girders.

  • Evaluating the Impact of Bridge-Deck Removal on the ...

    Jun 03, 2016· Two methods, saw-cutting and jackhammering, were implemented on the Camp Creek Bridge over I-80 in Lancaster County, Nebraska, before demolition due to its functional obsolesces. Different saw-cutting and jackhammering techniques were performed for deck removal between girders and on top of girder flange. Also, two girders from the bridge were ...

  • Methods for Removing Concrete Decks From Bridge Girders

    Aug 01, 2014· Methods for Removing Concrete Decks From Bridge Girders Published Date: . Language: English [PDF-7.48 ] ... reliable, and sustainable methods for removing concrete decks from bridges. The goal of this research was to explore such methods. The research team conducted qualitative studies through a literature review, interviews ...

  • A Simplified method to minimize exterior girder rotation ...

    Mar 15, 2019· Since the concrete deck cannot provide stiffness for the bridge during deck construction, the weight of the fresh concrete was simplified as loads distributed along the bridge girders in this study, with a unit weight of 23.56 kN/m 3 (150 lb/ft 3). Additionally, the elastic modulus of steel was assumed to be 200 GPa (29,000 ksi).

  • EVALUATING THE IMPACT OF DECK REMOVAL METHOD …

    thin top flange might be disadvantageous when it comes to deck removal, as it is more susceptible to damage. Therefore there is a need to investigate the impact of deck removal methods on the performance of the supporting wide flange I-girder. In this study, two deck removal methods are presented: saw cutting and jack hammering.

  • Bridge Deck Removal using Concrete Cutting for Demolition ...

    Dec 16, 2009· This video demonstrates the process of removing a bridge deck using concrete cutting as a precision means of demolition. The work was done on Greenwood Avenu...

  • BEHAVIOR OF LINK SLAB BRIDGE GIRDERS WITH …

    slab and the rest of the bridge [4, 5, 8-20]. Several methods were proposed for analyzing the jointless deck systems [18-21]. Most of these methods depend on the finite element method. Early work considered simplified computational methods by modeling the girders and deck by two-noded isoparametric beam element and link slab by two-noded uniaxial

  • Affordable Bridge Girder End Repair Method Restores ...

    Jul 18, 2018· By load testing part of a bridge that was removed over Nine Mile Creek, researchers have proven that an innovative and cost-effective method for repairing damaged bridge girders restores them to their original strength. The findings will help MnDOT and other transportation agencies avoid lengthy traffic closures and more costly techniques when repairing other bridges.…