ESWP: International Bridge Conference®: Rehabilitation 1

Rehabilitation, Part 1

Wednesday, June 4, 2008
8:00 AM - 12:30 PM

Chair: Ronald D. Medlock, PE, High Steel Structures, Inc., Lancaster, PA

IBC 08-67 - Investigation and Retrofitting of Web Cracking in US 202 Bridge in Montgomery County, PA
Sougata Roy, PhD, Ben T. Yen, R.S. Deo Alapati, Carl Bowman, ATLSS Center, Lehigh University, Bethlehem, PA; Jian Jin, Jacobs Edwards and Kelcey, West Chester, PA; James P. Van Dien, HDR, King of Prussia, PA; Henry Berman, PennDOT, King of Prussia, PA

Cracking in the web of main girder at the intersection with the floor beam connection plate, bearing stiffener and the bracket shelf plate for adjacent simple span in the north bound span of US 202 Bridge in Montgomery County, PA was investigated and a retrofitting strategy was developed. The "smiley" shaped crack originated from the web gap or cope in the transverse bearing stiffener near the termination of the bearing stiffener/floor beam connection plate-to-web weld above the bracket shelf plate and completely fractured the girder web towards the end. Towards the span, the crack growth was arrested in the web. The crack was unique in the sense that it had developed in a normally compression region of the structural component.

IBC 08-68 - Fatigue and Fracture Performance of Heat-Straightened Steel Bridge Girders
Michael Urban, HNTB Corporation, Philadelphia, PA; Robert Connor, Purdue University, West Lafayette, IN

This paper presents research conducted on the fatigue and fracture performance of damaged steel bridge girders. It will cover the laboratory testing, evaluation and inspection procedures before and after the repair, and recommended guidelines to be used in conjunction with the current state of practice.

IBC 08-69 - Seismic Reinforcement Project for Large Scale Bridges in Istanbul
Sabri Tekin, Seref Akin, KGM General Directorate of Highways, Ankara, Turkey

This project contains seismic reinforcement of large scale bridges in Istanbul such as First Bosphorus Bridge, Fatih Sultan Mehmet Bridge, New Golden Horn Bridge, etc. against a major prospective earthquake which would affect Istanbul and nearby regions.

IBC 08-70 - Thurston Avenue Bridge: New York's 1st Induction Bent Tubular Arch
Susan Matzat, PE, LaBella Associates, PC, Rochester, NY; Bob Meierhoff, BendTec, Inc., Duluth, MN

The addition of induction bent tubular shaped arches tied to two existing arches allows this "gateway" bridge on the Cornell University campus to uniquely meet capacity and aesthetic requirements. This "first of its kind" design and fabrication process has helped preserve and embolden steel arch bridge structures.

IBC 08-71 - Rehabilitation of a 115-year old Truss Bridge
Harold Plott, PE, Pamela Mann, HSMM AECOM, Roanoke, VA; Luke Pugh, City of Roanoke, Roanoke, VA

The presentation will provide details on inspection, design and construction for the rehabilitated bridge crossing the Norfolk and Western rail lines, built in the early 1890's. The structure consists of a 100-foot steel Warren truss main span with built-up steel through-girder approach spans which were dismantled and delivered to an off-site fabricator for repairs, strengthening and painting.

IBC 08-72 - Lightweight Fill Accelerates Critical Bridge Replacement Schedule
James Weaver, Haley & Aldrich, Inc., South Portland, ME; Wayne Chadbourne, Haley & Aldrich, Inc., Portland, ME

5,000 cy of EPS geofoam was used to construct approach embankments for the replacement of a critical bridge in Maine. The geofoam embankments were designed to reduce ground surface settlement and lateral loading on existing deteriorated bridge abutments. The use of geofoam also shortened the project construction schedule by 1.5 years.

IBC 08-73 - Design and Construction of the ASR Mitigation System for the New Jersey Abutment of Bayonne Bridge.
Wagdy Wassef, Modjeski and Masters, Inc., Mechanicsburg, PA; Stewart Sloan, Port Authority of New York and New Jersey, Newark, NJ

The main span steel arch of Bayonne Bridge, 1675 ft. long, is supported on massive concrete abutments. Test results identified Alkali Silica Reaction (ASR) as the cause of the abutment cracking. This paper describes the studies, the design and construction of the ASR mitigtion system for the abutment.

IBC 08-74 - FDR Drive Rehabilitation and Outboard Detour Roadway
Neil Porto, HDR|Daniel Frankfurt, New York, NY

The tri-level FDR Drive is the major arterial on Manhattan's East Side, and the segment between East 54th Street to East 63rd Street is located in one of the wealthiest neighborhoods in the City. The $140M rehabilitation included replacement of the deteriorated Southbound FDR Drive Viaduct with a modern structure, with improvements to entrances, exits, drainage, and lighting. A seismic retrofit was instituted. Also included was rehabilitation of the Roof Structure, with restoration of the public parks and private gardens. The innovative plan included a unique maintenance and protection of traffic (MPT) scheme, in which an Outboard Detour Roadway was constructed in the East River to replicate the traffic carrying capacity of the highway during construction.

IBC 08-75 - Rehabilitation of the 42nd Street Bridge over AMTRAK and Norfolk Southern
Christopher Menna, City of Philadelphia, Streets Dept., Bridge Section, Philadelphia, PA

The project involved the rehabilitation of a unique steel arch bridge in West Philadelphia. The structure was approaching the end of its life and had a history of numerous ruck collisions. Innovative rehabilitation schemes were devised to satisfy historic preservation criteria and to restore the structure's place in the neighborhood.

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