Safety Identifying of Integral Abutment Bridges under Seismic and Thermal Loads

Joint Authors

Easazadeh Far, Narges
Barghian, Majid

Source

The Scientific World Journal

Issue

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

Publisher

Hindawi Publishing Corporation

Publication Date

2014-10-27

Country of Publication

Egypt

No. of Pages

12

Main Subjects

Medicine
Information Technology and Computer Science

Abstract EN

Integral abutment bridges (IABs) have many advantages over conventional bridges in terms of strength and maintenance cost.

Due to the integrity of these structures uniform thermal and seismic loads are known important ones on the structure performance.

Although all bridge design codes consider temperature and earthquake loads separately in their load combinations for conventional bridges, the thermal load is an “always on” load and, during the occurrence of an earthquake, these two important loads act on bridge simultaneously.

Evaluating the safety level of IABs under combination of these loads becomes important.

In this paper, the safety of IABs—designed by AASHTO LRFD bridge design code—under combination of thermal and seismic loads is studied.

To fulfill this aim, first the target reliability indexes under seismic load have been calculated.

Then, these analyses for the same bridge under combination of thermal and seismic loads have been repeated and the obtained reliability indexes are compared with target indexes.

It is shown that, for an IAB designed by AASHTO LRFD, the indexes have been reduced under combined effects.

So, the target level of safety during its design life is not provided and the code’s load combination should be changed.

American Psychological Association (APA)

Easazadeh Far, Narges& Barghian, Majid. 2014. Safety Identifying of Integral Abutment Bridges under Seismic and Thermal Loads. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1050936

Modern Language Association (MLA)

Easazadeh Far, Narges& Barghian, Majid. Safety Identifying of Integral Abutment Bridges under Seismic and Thermal Loads. The Scientific World Journal No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1050936

American Medical Association (AMA)

Easazadeh Far, Narges& Barghian, Majid. Safety Identifying of Integral Abutment Bridges under Seismic and Thermal Loads. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1050936

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1050936