An Improved Multidimensional MPA Procedure for Bidirectional Earthquake Excitations

Joint Authors

Wang, Feng
Sun, Jian-Gang
Zhang, Ning

Source

The Scientific World Journal

Issue

Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2014-07-20

Country of Publication

Egypt

No. of Pages

12

Main Subjects

Medicine
Information Technology and Computer Science

Abstract EN

Presently, the modal pushover analysis procedure is extended to multidimensional analysis of structures subjected to multidimensional earthquake excitations.

an improved multidimensional modal pushover analysis (IMMPA) method is presented in the paper in order to estimate the response demands of structures subjected to bidirectional earthquake excitations, in which the unidirectional earthquake excitation applied on equivalent SDOF system is replaced by the direct superposition of two components earthquake excitations, and independent analysis in each direction is not required and the application of simplified superposition formulas is avoided.

The strength reduction factor spectra based on superposition of earthquake excitations are discussed and compared with the traditional strength reduction factor spectra.

The step-by-step procedure is proposed to estimate seismic demands of structures.

Two examples are implemented to verify the accuracy of the method, and the results of the examples show that (1) the IMMPA method can be used to estimate the responses of structure subjected to bidirectional earthquake excitations.

(2) Along with increase of peak of earthquake acceleration, structural response deviation estimated with the IMMPA method may also increase.

(3) Along with increase of the number of total floors of structures, structural response deviation estimated with the IMMPA method may also increase.

American Psychological Association (APA)

Wang, Feng& Sun, Jian-Gang& Zhang, Ning. 2014. An Improved Multidimensional MPA Procedure for Bidirectional Earthquake Excitations. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1049212

Modern Language Association (MLA)

Wang, Feng…[et al.]. An Improved Multidimensional MPA Procedure for Bidirectional Earthquake Excitations. The Scientific World Journal No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1049212

American Medical Association (AMA)

Wang, Feng& Sun, Jian-Gang& Zhang, Ning. An Improved Multidimensional MPA Procedure for Bidirectional Earthquake Excitations. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1049212

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1049212