Sri Sritharan Department of Civil, Construction & Evnironmental Engineering
T. A. Wilson Engineering Professor (515)294-5238 | sri@iastate.edu









Sponsor(s)


Design of Jointed Precast Building Systems for High Seismic Zones, Phase I


Principal Investigator: Sivalingam Sritharan
Team Members: Student 1
Sponsor(s): Precast/Prestressed Concrete Institute
Start Date: 01/01/2002
End Date: 07/31/2003
Keywords: Seismic Resistant Design of Structures, Precast/Prestressed Structural Systems

Project Description:

This project focused on validating seismic design guidelines currently available for two precast concrete structural systems: jointed wall system and hybrid frame system.

Part 1-Jointed Wall System:
Following the satisfactory response of the unbonded post-tensioned precast concrete jointed wall system tested for seismic performance as part of the PREcast Seismic Structural Systems (PRESSS) test building, a set of design guidelines was published. The primary objective of this part of research is to evaluate the adequacy of the design guidelines and make appropriate recommendations so that the guidelines can be adopted for design of jointed precast walls in seismic regions. The test data to date on such systems are those collected during the wall direction testing of the PRESSS test building. Hence, this data set has been employed in the validation process.
Part II -Hybrid Frame System:
The development of hybrid frame systems has enabled application of precast concrete in seismic regions.This project focused on validating seismic design guidelines currently available for two precast concrete structural systems: jointed wall system and hybrid frame system.

Publications:

1) Thomas D. J., and S. Sritharan. 2004. An Evaluation of Seismic Design Guidelines Proposed for Precast Jointed Wall System. ISU-ERI-Ames Report ERI-04643, Department of Civil and Construction and Environmental Engineering, 132 pp. June, Iowa State University, Ames, Iowa.

2) Celik O., and S. Sritharan. 2004. An Evaluation of Seismic Design Guidelines Proposed for Precast Concrete Hybrid Frame Systems. ISU-ERI-Ames Report ERI-04425, Department of Civil and Construction and Environmental Engineering, 172 pp. January, Iowa State University, Ames, Iowa.