پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 163 |
| تعداد شماره‌ها | 6,878 |
| تعداد مقالات | 74,135 |
| تعداد مشاهده مقاله | 137,885,082 |
| تعداد دریافت فایل اصل مقاله | 107,253,308 |
Seismic Performance Assessment of Steel Concentrically Braced Frames (CBFs) Equipped with Crescent-shaped Braces (CSBs) | ||
| Civil Engineering Infrastructures Journal | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 22 مرداد 1404 اصل مقاله (2.1 M) | ||
| شناسه دیجیتال (DOI): 10.22059/ceij.2025.383680.2170 | ||
| نویسندگان | ||
| Abazar Asghari* 1؛ Nima Tajik2 | ||
| 1School of Civil Engineering, College of Engineering, University of Tehran, Tehran, Iran. | ||
| 2Department of Civil, Structural and Environmental Engineering, State University of New York at Buffalo, Buffalo, NY, USA | ||
| چکیده | ||
| This paper focuses on studying the elastic and inelastic behavior of steel concentrically braced frames (CBFs) with crescent-shaped braces (CSBs) and proposes a novel seismic design approach due to the lack of existing seismic specifications. The results of the elastic analyses demonstrate a reduction in the lateral stiffness of the frame as the arm (ξ) increases. Specifically, when ξ reaches approximately one fifth of the length of the braced member, the lateral stiffness of braced frames becomes nearly equal to that of moment-resisting frames. The analysis results further verify that the strength and stiffness of braced members are not inherently coupled. The findings highlight that by specifying the appropriate value of ξ (arm length), the desired stiffness can be achieved. This implies the conventional concentrically braced members typically lack such a specification. Nonlinear analyses of braced frames confirm that frames braced with CSBs can be classified as Steel Special Concentrically Braced Frames (SCBFs) rather than ordinary concentrically braced frames (OCBFs). Nonlinear analysis indicates the response modification factor for this type of frame should be 3.5. Additionally cyclic behavior of frames braced with CSBs indicated that by increasing the value of ξ, more energy dissipation can be achieved during earthquake loading. | ||
| کلیدواژه‌ها | ||
| Curved Crescent-shaped braced frame؛ Reduction factor؛ Push over analysis؛ Response modification factor؛ Cyclic behavior | ||
|
آمار تعداد مشاهده مقاله: 50 تعداد دریافت فایل اصل مقاله: 59 |
||
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب