U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Serviceability Limits and Economical Steel Bridge Design

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    United States. Federal Highway Administration. Office of Bridge Technology
  • Corporate Contributors:
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-HIF-11-044
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    United States. Federal Highway Administration. Office of Bridge Technology
  • Abstract:
    Current American Association of State Highway Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Design Specifications Service I deflection limits are in place with the purpose to prevent deformation-induced structural damage and psychological user-discomfort from excess bridge vibration. Previous research has shown that deflection criterion alone is insufficient in controlling excess bridge vibrations and structural deterioration of the concrete deck. Previous research shows that natural frequency criteria better controls excess vibration than deflection criteria. In addition, previous research shows no significant correlation between deflection and structural deformation of the concrete deck slab. In order to better control excess bridge vibrations and deformation-induced structural deterioration, two new separate criteria formulations are proposed. The first formulation consists of a natural frequency criteria transformed into deflection type terms familiar to the typical bridge engineer. The second proposed formulation directly controls the acting flexural strain in the concrete deck to control deformation-induced structural damage. The proposed serviceability criteria are applied to a database of 195 steel girder bridges. Both the as-built behavior and the design optimized behavior are examined and compared to current AASHTO serviceability criteria.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:5e0b3cfe835fd0a30edac3e4bf809eab1e16ea8271f44079732f697d4ab34df6938f33a48342c4a1d052ed85a3968bea7029e0965615f891367c82a1792ac853
  • Download URL:
  • File Type:
    Filetype[PDF - 1.94 MB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
 Found an issue?
Send us an email at:
publishinghd@cdc.gov
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP