NY-25 over I-495
PROJECT OWNER
New York State Department of Transportation
LOCATION
New York
CLIENT(s)
Subconsultant to Dinmore Engineering, PLLC
SERVICES PROVIDED
Bridge Engineering, Structural Engineering, Transportation Engineering
New York State Department of Transportation, Design Calculations for Multiple Contracts during Construction Activities
PROJECT DESCRIPTION
SJH prepared design calculations for the erection of the superstructures for several locations. Under this contract, we provided engineering services under the following contracts:
Task 1 – D262708 NY-25 over I-495 (Long Island Expressway), Long Island, NY
SJH prepared design calculations for jacking towers for spans 1 and 2. The analysis and procedures to perform the girder jacking and temporary support operation is necessary for bearing replacements on the substructures. The stringers were checked for overstressing based on the jacking/support point being under the members. The analysis and design of all components of the jacking and support system conforms to the AASHTO 2002 Standard Specifications for Highway Bridges.
Task 2 – D263035 MBC Project of 8 Bridges in Putnam and Westchester Counties, NY
SJH reviewed structural lifting plans and calculations.
Task 3 – D263035 Ramp CWE over SMRP - Route 9 over Route 129 Bridge Rehabilitation
SJH prepared structural details for girder hanger assembly with top and bottom bearing plates.
Task 4 – D263035 Bronx River Parkway over Sprain Brook Parkway, Westchester County, NY.
SJH prepared the jacking plans for this bridge replacement.
Task 5 – D263035 Palmer Road over Sprain Brook Parkway Bridge Rehabilitation, Westchester County, NY
The girder jacking design for the tower components were designed using STAAD.Results of the maximum interaction ratio were produced for this project on time and within budget.
Task 6 – Shore Parkway Bridge over Mill Basin, Kings County, NY
SJH furnished section properties and capacities of the Static Tower detail to be incorporated in the temporary construction work where BDB 5x5 towers are used. We followed AASHTO Guide Design Specifications for Bridge Temporary Works, 1995 with Current Interims and 2. AASHTO Standard Specifications for Highway Bridges, 15th Edition, 2002.
Task 7 - Washington Ave. over I-495 (Long Island Expressway), Long Island, NY
Task 8 –D263035Shape[Text Box]Route 9D over Indiana Brook Road, Putnam County, NY
SJH checked the capacity of the temporary supporting frame in lieu of the existing frame which is being replaced. An Area and Capacity Comparison of the existing and temporary steel method was used. The capacity was checked using ASD methodology. We focused on the replacement of the bottom and first strut.
