Optimal Performance- Based Seismic Design - Structural Seismic Design Optimization and Earthquake Engineering - page 204

B. Improving the nonlinear analysis and cor-
responding sensitivity analysis procedures.
C. Developing more efficient optimization
algorithms.
D. Rationalizing acceptance criteria and corre-
lating them to structure's overall behaviour
with the help of OPBSD.
E. Developing optimal performance-based
seismic design criteria applicable in com-
bination with nonlinear dynamic analysis
F. Establishing relations between expected
values of the response and performance
indicators, estimated by means of refined
models of the system with those estimated
with the aid of structural analysis and design
ordinarily applied in typical structural design
practice.

such that he/she could begin to write his own
computer program for OPBSD. The start points
for different parts of an OPBSD program includ-
ing the knowledge for starting performance-based
design, nonlinear analysis, formulation of design
optimization problem and sensitivity analysis were
clearly introduced. The algorithms of optimiza-
tion, although were particularly relevant to the
subject of this chapter, were not explained much
because of shortage of space; however, some use-
ful references were introduced. If the interested
reader establishes his own performance-based
design optimization problem, its solution may
be facilitated by one of available optimization
software.

REFERENCES

Arora, J. S. (2004). Introduction to optimum de-
sign . San Diego, CA: Elsevier Academic Press.

CONCLUSION

In this chapter, performance-based design and
its prerequisites were briefly introduced. Due to
shortage of space, and wideness of the field, we
could only point to titles of the related subjects.
However, this chapter provides a ground for
more deep studies in the subject for the interested
reader. The performance-based design philosophy
and corresponding practical procedures were
explained on the whole, to provide an overview
of what is going on in design offices. The goal of
design optimization and its application to some
design problems was briefly presented. The
sensitivity calculation that is an essential task in
practical design optimization was explained. It
was shown how nonlinear sensitivity calculation
has to be built on nonlinear analysis assumptions
and procedure. Some examples of the research
activities in the field of Optimum Performance-
Based Seismic Design were presented, and various
aspects of this progressing desire were discussed
within the description of examples. The aim of
the author was to help the interested reader to
obtain an overall understanding of the subject,

Arora, J. S., & Haug, E. J. (1979). Methods
of design sensitivity analysis in structural op-
timization. AIAA Journal , 17 (9), 970-974.
doi:10.2514/3.61260

Asadi, P. (2006) Optimization of distribution of
reinforcement in the seismic design of R/C frames .
MSc. Thesis Civil Eng. Dept., Sharif University
of Technology.

ASCE. (2007). Seismic rehabilitation of exist-
ing buildings (pp. 41-06). Reston, VA: ASCE
Publications.

Aschheim, M. (1999). Yield point spectra: A sim-
ple alternative to the capacity spectrum method.
SEAOC 1999 Convention , (pp. 373-379).

Besset, S., & Jezequel, L. (2007). Optimization
of structural dynamic behaviour based on effec-
tive modal parameters. International Journal
for Numerical Methods in Engineering , 70 (5),
523-542. doi:10.1002/nme.1890