پیوندهای مفید
آمار
| تعداد نشریات | 22 |
| تعداد شمارهها | 709 |
| تعداد مقالات | 10,213 |
| تعداد مشاهده مقاله | 71,680,608 |
| تعداد دریافت فایل اصل مقاله | 63,498,573 |
Applicability of damage indices for detection of cracking in steel moment connections | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 1، دوره 1، شماره 2، آبان 2013، صفحه 1-9 اصل مقاله (1021.81 K) | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2013.155 | ||
| نویسندگان | ||
| B. Badrkhani Ajaei1؛ M. Ghassemieh* 2 | ||
| 1M.Sc., School of Civil Engineering, University College of Engineering, University of Tehran, Tehran, Iran | ||
| 2Associate Professor, School of Civil Engineering, University College of Engineering, University of Tehran, Tehran, Iran | ||
| تاریخ دریافت: 06 خرداد 1393، تاریخ پذیرش: 06 خرداد 1393 | ||
| چکیده | ||
| Analytical detection of cracking in connections of steel moment resisting frames using simple damage indices is important since these cracks are not visible unless the connections are uncovered. In this paper, applicability of three cumulative damage indices for detection of cracking in a cover plate welded moment connection is investigated. The damage indices considered in this study are based on the following criteria: energy dissipation, plastic deformation and work index. Cracking of the connection is simulated for different loading histories by incorporating the cyclic void growth model to a finite element method of analysis of the connection. Results of simulation indicate good agreement with test results in terms of prediction of the cracking location and the instant of cracking. Based on the results of the performed simulations, the effects of the damage indices are compared. Overall, the energy dissipation damage index predicts cracking in this connection better than the other indices. Values of this index in the instant of cracking show little scatter for different loading histories. | ||
| کلیدواژهها | ||
| Crack initiation؛ Moment resisting connections؛ Damage indices؛ finite element method؛ cyclic void growth model | ||
| مراجع | ||
|
[1] Kaufmann, E.J., Fisher, J.W., Di Julio Jr., R.M., Gross, J.L. (1997). “Failure analysis of welded steel moment frames damaged in the Northridge earthquake”. NISTIR 5944, National Institute of Standards and Technology, Gaithersburg, Maryland. [2] Iyama, J., Ricles, J.M. (2009). “Prediction of fatigue life of welded beam-to-column connections under earthquake loading”. Journal of Structural Engineering (ASCE), Vol. 135, No. 12, pp. 1472-1480. [3] Zhang, X., Ricles, J.M., Lu, L.W., Fisher, J.W. (2004). “Analytical and experimental studies on seismic behavior of deep column-to-beam welded reduced beam section moment connections”. Proceedings of the 13th world Conference on Earthquake Engineering, Vancouver, Canada, paper No. 1599. [4] Ricles, J.M., Zhang, X., Fisher, J.W., Lu, L.W. (2004). “Seismic performance of deep column-to-beam welded reduced beam section moment connections”. Proceedings of the 5th International Workshop on Connections in Steel Structures, Amsterdam, pp. 211-222. [5] Kim, T., Whittaker, A.S., Gilani, A.S.J., Bertero, V.V., Takhirov, S.M. (2000). “Cover-plate and flange-plate reinforced steel moment-resisting connections”. Pacific Earthquake Engineering Research Center, Sacramento, California. [6] ABAQUS, (1998). User’s Manual, Version 5.8, Hibbitt, Karlsson, and Sorensen, Inc. [7] Myers, A.T., Deierlein, G.G., Kanvinde, A.M. (2009). “Testing and probabilistic simulation of ductile fracture initiation in structural steel components and weldments”. Report No. 170, John A. Blume Earthquake Engineering Center, Stanford University, Palo Alto, CA. [8] Castiglioni, C.A., Pucinotti, R. (2009). “Failure criteria and cumulative damage models for steel components under cyclic loading”. Journal of Constructional Steel Research, Vol. 65, No. 4, pp. 751-765. [9] Krawinkler, H., Zohrei, M. (1983). “Cumulative damage in steel structures subjected to earthquake ground motions”. Computers & Structures, Vol. 16, No. 1-4, pp. 531–541. [10] Kanvinde, A.M., Deierlein, G.G. (2004). “Micromechanical simulation of earthquake induced fracture in steel structures”. Report No. 145, John A. Blume Earthquake Engineering Center, Stanford University, Stanford, California. [11] Kanvinde, A.M., Deierlein, G.G. (2007). “Cyclic void growth model to assess ductile fracture initiation in structural steels due to ultra low cycle fatigue”. Journal of Engineering Mechanics (ASCE), Vol. 133, No. 6, pp. 701–712. [12] Krawinkler, H., Gupta, A., Medina, R., Luco, N. (2000). “Development of loading histories for testing of steel beam-to-column assemblies”. Prepared for the SAC Steel Project, Department of Civil and Environmental Engineering, Stanford University, Palo Alto, California. | ||
|
آمار تعداد مشاهده مقاله: 2,900 تعداد دریافت فایل اصل مقاله: 2,740 |
||