Civil Engineering ETDs

Publication Date

5-19-1968

Abstract

The object of this investigation is to ascertain the possibility of having low-cycle fatigue failure of structures resulting from earthquake loads. In addition, a comparison is made between criteria of failure for maximum displacement and low-cycle fatigue.

The relationship between applied load, deflection and maximum strain in a shear type simple frame with rectangular columns have been analyzed for reversals of loadings. Two interrelated hysteresis loops, namely load-maximum strain curve and deflection-maximum strain curve, are proposed to give the upper-bound safety of the structure having columns with an average wide-flange (WF) section. These hysteresis loops are utilized for finding the time history of maximum strain variation in the structure when it is subjected to earthquake loads. The history of plastic strains is then obtained and the corresponding cumulative damage factor in the structure is calculated.

Document Type

Dissertation

Language

English

Degree Name

Civil Engineering

Level of Degree

Doctoral

Department Name

Civil Engineering

First Committee Member (Chair)

James Tsu-Ping Yao

Second Committee Member

Cornie Leonard Hulsbos

Third Committee Member

F. D. Ju

Fourth Committee Member

J. L. Rosenblatt

Fifth Committee Member

Marion Marvin Cottrell

Download

Share

COinS