Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Structural Engineering and Mechanics Volume 64, Number 1, October10 2017 , pages 109-120 DOI: https://doi.org/10.12989/sem.2017.64.1.109 |
|
|
|
Seismic behavior of steel column-base-connection equipped by NiTi shape memory alloy |
||
Reza Jamalpour, Masoud Nekooei and Abdolreza Sarvghad Moghadam
|
||
| Abstract | ||
| The behavior of moment resistant steel structures depends on both the beam-column connections and columns foundations connections. Obviously, if the connections can meet the adequate ductility and resistance against lateral loads, the seismic capacity of these structures will be linked practically to the performance of these connections. The shape memory alloys (SMAs) have been most recently used as a means of energy dissipation in buildings. The main approach adopted by researchers in the use of such alloys is firstly bracing, and secondly connecting the beams to columns. Additionally, the behavior of these alloys is modeled in software applications rarely involving equivalent torsional springs and column-foundation connections. This paper attempts to introduce the shape memory alloys and their applications in steel structural connections, proposing a new steel column- foundation connection, not merely a theoretical model but practically a realistic and applicable model in structures. Moreover, it entails the same functionality as macro modeling software based on real behavior, which can use different materials to establish a connection between the columns and foundations. In this paper, the suggested steel column-foundation connection was introduced. Moreover, exploring the seismic dynamic behavior under cyclic loading protocols and the famous earthquake records with different materials such as steel and interconnection equipment by superelastic shape memory alloys have been investigated. Then, the results were compared to demonstrate that such connections are ideal against the seismic behavior and energy dissipation. | ||
| Key Words | ||
| SMA; steel column-base-connection; cyclic/seismic behavior; energy dissipation | ||
| Address | ||
| Reza Jamalpour, Masoud Nekooei: Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran Abdolreza Sarvghad Moghadam: International Institute of Earthquake Engineering and Seismology (IIEES), Tehran, Iran | ||