Research Activities: 1998

Metallic Dampers for Seismic Design and Retrofit of Bridges



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Sequential Number


Identification Number


Matching Research Agency

Missouri Department of Transportation (MoDOT)

Principal Investigator

Genda Chen, Assistant Professor
Civil Engineering
University of Missouri -- Rolla
111 Butler-Carlton Bldg.
Rolla, MO 65409
p(573) 341-4462
f(573) 341-6215

Student Involvement

One (1) M.S. student

Project Objective

The objective of the proposed project is to develop a practical bearing arrangement scheme for continuous steel-plate-girder highway bridges in infrequent seismic zones such as the Central and Eastern United States.

Project Abstract

The bearing arrangement shall be suitable to accommodate seismic forces while it allows for free thermal expansion, which is an essential ingredient for the design of bridges experiencing considerable thermal displacement.

Task Description

  1. Optimize the shape of the metallic dampers.
  2. Monitoring of one cracked and uncracked bridges.
  3. Development of a FEM model to investigate the serviceability and stress induced performance of a cracked bridge.
  4. Develop a design procedure for the proposed system.

Anticipated Benefits


Modal Orientation



Project Start Date:01/01/1998
Project End Date:12/31/2000

Relationship to other Research/Projects


Technology Transfer Activities

Report to MoDOT.

Transportation Research Board Keywords

Dampers and seismic design