Clay J. Naito, Ph.D., P.E.
Associate Professor and Associate Chair
Dept. of Civil and Environmental Engineering

Contact Information
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Current Research:

NSF: Development of a Blast and Ballistic Resistant Precast Concrete Armored Wall System

NEES-CR: Impact Forces from Tsunami-Driven Debris

Inspection Methods & Techniques to Determine Non Visible Corrosion of Prestressing Strands in Concrete Bridge Components

Daniel P. Jenny PCI Fellowship: Analytical Assessment of the Resistance of Precast Strucutres to Blast Effects

Development of a Seismic Design Methodology for Precast Diaphragms

Development of a Welding Procedure Specification for Field Welding of Precast Concrete Connections

Use of Polyurea for Blast Hardening of Concrete Construction

Estimation of Concrete Respone Under Varying Confinement

Evaluation of Bond Mechanics in Prestressed Concrete Applications

Horizontal Shear Capacity of Composite Beams Without Ties

Lateral Resistance of Plywood and Oriented Strand Board Sheathing After Accelerated Weathering

Past Research Projects

Performance of Bulb Tees with Self Consolidating Concrete

FRP Bridge Decks with RC Parapets

Blast Resistance of a Load Bearing Shear Wall Building

Lehigh@NEES Equipment Site

Reserarch Experinece for Undergraduates

Seismic Evaluation of a Three Story WoodFrame Apartment Building with Tuck-Under Parking

Design of RC Bridge Beam-Column Connections

Response of Waffle Slab Building Systems to Seismic Loads

Seismic Evaluation of Asymmetric Multi-Story Wood-Frame Buildings

Executive Summary
The aim of this research is to study the seismic response of typical residential multi-story wood frame structure subjected to multi-directional ground motion. The torsional effect due to the open front in the first story on the seismic response of a three-story structure with tuck-under parking is of particular interest. Different finish materials such as interior gypsum board and exterior stucco will be included in the study. Based on the results of the experimental investigation of the selected structural configuration, different retrofit techniques (for the open front in the first story and for the upper stories) will be implemented for seismic evaluation purposes.

During the construction of the three-story wood structure, the vibration characteristics of one- and two-story structures will be determined from multi-directional dynamic loading. The selected building will be tested on the multi-directional shaking table at The University of California at Berkeley. The research presents task 1.1.2 of the CUREe-CALTECH Wood-frame Project.

Research Team
Clay Naito, Post-Doctoral Researcher
Assistant Professor Khalid Mosalam, Principal Investigator
Professor Stephen Mahin, Co-Principal Investigator

Publications
K. M. Mosalam, C. Machado, K.U. Gliniorz, C. J. Naito, E. Kunkel, S. A. Mahin, "Seismic Evaluation of Asymmetric Multi-Story Woodframe Buildings," CUREe/Caltech Wood-frame Task 1.1.2 Final Report, University of California Berkeley, April 2002.

Naito, C.,J., Mosalam, K.M., Mahin, S.A., "Rehabilitation Of Open Front Wood-Frame Buildings," 12th European Conference on Earthquake Engineering [Proceedings], Elsevier Science Ltd., London, Sept. 2002, Paper No. 540

Page Last Updated Friday, 24-Jun-2005 18:31:53 EDT