ORIGINAL_ARTICLE
Investigating Performance of Aitken Accelerator in Dynamic Analysis by One-Dimensional Generalized
This article investigates the performance of Aitken accelerator in analysis by one-dimensional generalized subspace method. At first, it has dealt with non-linear dynamic analysis by generalized subspace technique and the necessity of extending analysis by this method. There after one-dimensional subspace procedure is presented. According to requirement of the process to iteration in each time step, the approach is modified with the help of Aitken accelerator. Finally, the numerical examples, according to modified algorithm, are presented.
https://ceej.aut.ac.ir/article_115_3482afcc77873f3db81e27be588fdf3b.pdf
2011-08-23
1
7
10.22060/ceej.2011.115
One-Dimensional Generalized Subspace
Aitken Accelerator
plate
Shell
Reza
Attarnejad
1
عضو هیات علمی دانشگاه تهران
AUTHOR
seyedh negar
Tavafzadeh
2
نویسنده مسئول و کارشناس ارشد عمران‐ سازه‐ دانشگاه تهران‐ دانشکده فنی
LEAD_AUTHOR
seyed ali
Hosseini
3
کارشناس ارشد عمران‐ سازه‐دانشگاه گیلان‐ دانشکده فنی
AUTHOR
[1]Noor A.K.; “Recent Advantages and Applications of Reductions Methods", Applied Mechanics Review,Vol. 47 No. 5 ,1994.
1
[2]Wilson, E.L., Yuan, M. and Dickens, J.M.; “Dynamic Analysis by Direct Superposition of Ritz Vectors”,Earthq. Eng. Struct. Dyn., Vol. 10, 1982.
2
[3]Tavafzadeh, S.N. ; “ Non-Linear Dynamic Analysis of Plates and Shells by Modified One Dimensional Generalized Subspace” , M.S. dissertation supervised by Attarnejad, R.Department of Civil Engineering, Faculty of Engineering , University of Tehran, Tehran.
3
[4]Xia, H. and Humar, J.L.; “Frequency Dependent Ritz Vectors”, Earthq. Eng. Struct. Dyn., Vol. 21, 1992.
4
[5]Joo K.; Wilson E.L.; Leger P.; “Ritz Vectors and Generation Criteria for Mode Superposition Analysis“, Earthq. Engng. Strct. Dyn., 18, 149-167,1989.
5
[6]Vtku, S.; Clemente, J.L.M. and Salama, M. ; “Errors in Reduction Methods“, Computers and structure , Vol. 21 ,1985.
6
[7]Heravi Gh.R.; Attarnejad R.; “Non-linear Dynamic Analysis Using One-dimentional Update Subspaces“, Engineering Computations, Vol. 21, No. 8, 2004, pp.848-866.
7
[8]Ralston A.; Rabinowitz P.; “A First Course in Numerical Analysis“, 2nd. Ed., McGraw-Hill ,New York, 1978.
8
[9]Hinton E.; Owen D.R.J; Finite Element Software for Plates and Shells, Pine ridge Press Limited, 1984.
9
ORIGINAL_ARTICLE
Analyzing and Forecasting Railway Passenger Demand with Time Series Algorithm
Regarding the importance of the supply management for existing transportation facilities and allocating these resources in the rail transportation, travel demand forecasting has a very important role. In this paper the time series models are used to forecast passenger demand in Iranian railway network. Before estimation, model selection and forecasting, the stationary and non-stationary time series models of railway passenger demand are analyzed with the tests of unit root and seasonal unit root. In the modeling part the Box-Jenkins method are used that the main reason for using them was the strong correlation between the data in several months and seasons and repeating exact trends in the fixed basis of time. The Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE) criteria are used in order to evaluate the performance of models. The final fitted models are in conformity with family of seasonally ARIMA, and have at least 92 percent accuracy in the forecasting.
https://ceej.aut.ac.ir/article_116_d6c0760a5db12b7019926c2f8b090cab.pdf
2011-08-23
9
17
10.22060/ceej.2011.116
Passenger Demand Forecasting
Railway Network
Time Series
Shahriar
Afandi Zade
1
نویسنده مسئول و دانشیار دانشکده مهندسی عمران؛ دانشگاه علم و صنعت ایران
LEAD_AUTHOR
Amir Masoud
Rahimi
amrahimi@znu.ac.ir
2
استادیار گروه عمران؛ دانشکده مهندسی؛ دانشگاه زنجان
AUTHOR
Ali Asghar
Talaei
3
کارشناس ارشد مهندسی صنایع؛ دانش آموخته مؤسسه آموزش عالی الغدیر تبریز
AUTHOR
Ehram
Safari
4
دانشجوی دکتری مهندسی صنایع؛ دانشگاه علم و صنعت ایران
AUTHOR
[1]Kimes, S. E.,” Restaurant revenue management: could it work?”, Journal of Revenue and Pricing Management, Vol. 4, No. 1, 2005, pp. 95-97.
1
[2]Dail, U. A., Yoriyasu, S.,” Simultaneous demand model for passenger travel-A case study of Indonesia”, proceeding of the eastern Asia society for transportation studies, Vol. 4, 2003, pp. 869-884.
2
[3]Varagouli, E. G., Sios, T. E., Xeidakis, G. S.,” Fitting a multiple regression line to travel demand forecasting of xanthi, northen Greece”,mathematical and computer modeling, Vol. 42,2005, pp. 817-836.
3
[4]Song, H., Witt, S. F.,” Forecasting international tourist flows to Macau”. Tourism Management, Vol. 27, 2006, pp. 214–224.
4
[5]Botzoris, G. N., Profillidis, V. A.,” Econometric models for forecast of passenger demand in Greece”, journal of statistics management system,Vol. 9, No.1, 2006, pp. 37-54.
5
[6]Chen, N.,” Modelling demand for rail transport with dynamic econometric approaches”,international review of business research papers,Vol.3, No.2, 2007, pp. 85-96.
6
[7]Athanasopoulos, G., Hyndman, R.,” Modeling and forecasting Australia domestic tourism”, Tourism Management, Vol. 29, 2008, pp. 19–31.
7
[8]Tsai, T. H., Lee, C. K., Wei, C. H.,” Neural network based temporal feature models for shortterm railway passenger demand forecasting”,Expert System with Applications, 2008.
8
[9]Tavana, H., Mahamassani. H. S.,” Estimation an application of dynamic speed-density relation by using transfer function models”, Transportation Research Record, 1710, 2000, 47-57.
9
[10]Lim, C., McAleer, M.” Time series forecasts of international travel demand for Australia”. Tourism Management, Vol. 23, 2002, pp. 389–396.
10
[11]Williams, B. N., Hoel, L. A.,” Modeling and forecasting vehicular traffic flow as seasonal ARIMA process: Theoretical basis and empirical result”, Journal of Transportation Engineering,Vol. 129, 2003, 664-672.
11
[12]Gil-Alana, L. A.,” Modeling international monthly arrivals using seasonal univariate long-memory processes”, Tourism Management, Vol. 26, 2005,pp. 867–878.
12
[13]Chen, K., Wang. C.,” Support vector regression with genetic algorithms in forecasting tourism demand”, Tourism Management, Vol. 28, 2007,pp. 515–526.
13
[14]Wong, K. F., Song, H., Witt, S. F., Wu, D.,” Tourism forecasting: To combine or not to combine”, Tourism Management, Vol. 28, No.4,2007, pp. 1068–1078.
14
[15] گجراتی، دامودار؛ ابریشمی، حمید؛ مبانیاقتصادسنجی)جلد دوم( انتشارات دانشگاه تهران، تهران، چاپ . چهارم، ۱۳۸۵
15
[16]EViews 5 User’s Guide, Quantitative Micro Software, LLC, Printed in the United States of America, 2004.
16
[17]Lewis, C. D., Industrial and Business Forecasting, Method, Butterworth, London, (1982).
17
[18] ابریشمی، حمید؛ مهرآرا، محسن؛ اقتصادسنجی کاربردی، انتشارات دانشگاه تهران، تهران، چاپ اول،.۱۳۸۱
18
ORIGINAL_ARTICLE
Using Combi-layer to Limit Permanent Deformation in Road Pavements
Porous bituminous mixes that are saturated in cement slurries are named “combi-layer”. These types of mixes consist of coarse aggregates and contains little fines and have a high air voids content (of up to 20%). The porous property of combi-layer makes these mixes to be flexible while the saturated cement slurry improves their resistance to deformation and rutting. This research mechanical properties of one type of porous mix saturated with cement slurry at different cement concentration were investigated. Marshall, Creep and Indirect Tensile Tests were conducted on day and saturated samples. The ITS tests were performed at (-10 , zero , 40oC). The results showed that samples saturated at 32% cement had both high strength and appropriate flexibility . Hence with this type of mixes it would be possible to have the benefits of porous mixes (i.e. drainages, skid resistance …) while these mixes have enough strength to resist deformation.
https://ceej.aut.ac.ir/article_117_ca8a61e88c20ac80dd5522e42a9b8273.pdf
2011-08-23
19
25
10.22060/ceej.2011.117
Porous Asphalt
Indirect tensile strength
deformation
Ali
khodaii
1
نویسنده مسئول و دانشیار دانشکده مهندسی عمران، دانشگاه صنعتی امیرکبیر
LEAD_AUTHOR
Amir
kavusi
2
دانشیار دانشکده فنی و مهندسی ‐ بخش مهندسی عمران، دانشگاه تربیت مدرس
AUTHOR
Zahra
mirazizi
3
دانشجوی کارشناسی ارشد دانشگاه صنعتی امیرکبیر
AUTHOR
[1]مشخصات فنی عمومی راه، نشریه ( ١٠١ )، سازمان مدیرت و . برنامه ریزی کشور، تجدید نظر اول، ١٣٨٤
1
[2] مهندس سرائی پور, م. آسفالت , انتشارات دانشگاه تهران
2
[3]Ary Setyawan”Design and properties of hot mixture porous asphalt for Semi-Flexible pavement applications” Fakultas Teknik Jurusan Teknik Sipil UNS, Jln. Ir. Sutami No.36A Surakarta 57126.
3
[4]Becker Y. Mendez M.P, Rodrguez, Vision tecnologica vol.9, No.1.2001.
4
[5]Daines M,E,"Trials of porous asphalt and rolled asphalt on the A 38 at Burton" TRRL Research Report 323.1992.
5
[6]Dach lanjt T.,K.A. Zamulari, A.B. sterting and T . Toole. "The Improved design procedure for hot mix asphalt” "East's 97, Seoul, korea,29-31,1997.
6
[7]Hardiman , "The Improvement of Water Drainage Function and Abrasion Loss of Conventional Porous Asphalt" Proceedings of the Eastern Asia Society for Transportation Studies , Vol. 5, pp.671- 678,2005.
7
[8]G.C. Page. "Open Graded Friction Courses": Florid’s Experience Transportation Research Record 1427, TRB, National Research council, Washington D.C,PP1-4.1993.
8
[9]Martin F.C Van de Ven and Andre A.A Molenaar. "Mechanical characterization of Combi-layer" pp1-19,AAPT2004 .
9
ORIGINAL_ARTICLE
Evaluation of Swelling Strain in the Tunnel by Analytical Method
In this project, swelling strain and stress caused by tunnel excavation is determined. Two main parts of the performed analysis is mentioned here. First, swelling differential equation is solved by analytical method and the swelling quantities related to tunnel environment is calculated. Then in the second part, the amount of stresses of the tunnel environment caused by tunnel excavation is evaluated. Calculations of this part are processed by a finite element method that use isoperimetric element to model the tunnel. MATLAB code is used to process numerical model of the second part.
https://ceej.aut.ac.ir/article_118_425f9df82349c18059956e08c9c693c4.pdf
2011-08-23
27
32
10.22060/ceej.2011.118
Analytical method
Swelling Strain
Tunnel converging
Support
Stand-up time
Ahmad
Fahimifar
1
نویسنده مسئول و استاد دانشکدهی عمران، دانشگاه صنعتی امیرکبیر
LEAD_AUTHOR
Davod
Parsapour
2
دانشجوی دکتری مهندسی ژئوتکنیک ، دانشگاه صنعتی امیرکبیر
AUTHOR
[1]Barla, M., (1999), “Tunnels in swelling ground – Simulation of 3D stress paths by triaxial laboratory testing,” Ph. D. Thesis, Politecnico di Torino.
1
[2]Huder, J. and Amberg, G. (1970), “Quellung in Mergel, Opalinuston und anydrit”, chweizerische Bauzeitung. Vol.88, No. 43, pp. 975-980.
2
[3]Madsen, F.T., (1999), “Suggested methods for laboratory testing of swelling rocks,” International Journal of Rock and Mining Science, Vol. 26, No. 3,pp. 211-225.
3
[4]Wittke-Gattermann, P., (2003), “Dimensioning of Tunnels in Swelling Rock,” ISRM 2003–Technology roadmap for rock mechanics, South African Institute of Mining and Metallurgy.
4
[5]Wittke-Gattermann, P., (2003), “Dimensioning of Tunnels in Swelling Rock,” ISRM 2003–Technology roadmap for rock mechanics, South African Institute of Mining and Metallurgy.
5
[6]Wittke, w., (1990), “Rock Mechanics, Theory and Applications with Case Histories,” Springer-Verlag Berlin Heidelberg.
6
ORIGINAL_ARTICLE
Seismic Behavior of Dual Ductility Shear Walls
In general, shear wall design is based on flexural ductility. In this design approach, behavior of the shear walls is more similar to a cantilever beam with significant bending moment at its base. In such systems, the main input energy dissipation during seismic events happens at the base of the shear wall. In this paper, in order to improve the behavior of these important lateral resisting mechanism in structural systems, the possibility of dual type behavior (flexural and shear) were investigated. At first, the potential of this approach in improving the behavior of shear walls has been examined in a simplified structural model. Later, three types of shear walls including slit walls, shear walls with opening and frame-wall systems have been studied. The results show the capability of dual ductility modes of behavior in all three systems. Energy dissipation dispersion in these systems is better than the ordinary shear walls. Among the dual ductility systems, the frame-wall system has shown a superior performance compared with that of the two other systems.
https://ceej.aut.ac.ir/article_120_53a69003ad4dfdd242ff516a32fe28f8.pdf
2011-08-23
33
42
10.22060/ceej.2011.120
Shear Wall
dual mode
Ductility
energy dissipation
Mansor
Ziyaiefar
1
دانشیار پژوهشگاه بینالمللی زلزلهشناسی و مهندسی زلزله
AUTHOR
Jamshid
Sabouri
2
نویسنده مسئول و دانشجوی دکتری مهندسی زلزله دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران
LEAD_AUTHOR
Faramarz
Alemi
3
دانشجوی دکتری مهندسی زلزله پژوهشگاه بینالمللی زلزله شناسی و مهندسی زلزله
AUTHOR
[1]ضیایی فر، منصور؛ مطالعه رفتار لرزهای دیوارهای برشی با رفتار دوگانه شکل پذیر، پژوهشگاه زلزله شناسی . و مهندسی زلزله، ۱۳۸۲
1
[2]Harries, K., “Ductility and deformability of coupling beams in reinforced concrete coupled walls”,Earthquake Spectra, vol. 17, No. 3, p.p. 457-478,2001.
2
[3]Jiang, H.; Lu, X.; Kwan, A. K. H.; Cheung, Y. K.,“Study on seismic slit shear wall with cyclic experiment and macro-model analysis”, Structural Engineering and Mechanics, vol. 16, No. 4, p.p.371-390, 2003.
3
[4]Kwan, A. K. H.; Lu, X. L.; Cheung Y. K., “Elastic analysis of slit shear walls”, International Journal of Structures, vol. 13, No. 2, p.p. 75-92, 1993.
4
[5]Kwan, A. K. H.; Dai, H.; Cheimg, Y. K., “Non–linear seismic response of reinforced concrete slit Shear walls”, Journal of Sound and Vibration, vol.226, No. 4, p.p. 701-718, 1999.
5
[6]Lu, X. L.; Wu, X. H., “Shaking table test and analysis of a new type of shear wall with seismic control device”, 11th World Conference on Earthquake Engineering, Paper No. 10, 1996.
6
[7]Mansur, M. A.; Tan, K. H., Concrete beams with openings, Analysis and design, CRC Press, London,1999.
7
[8]Park, R.; Paulay, T., Reinforced concrete structures,John Wiley and Sons, New York, 1975.
8
[9]Paulay, T., “The displacement capacity of reinforced concrete coupled walls”, Engineering of Structures,vol. 24, p.p. 1165-1175, 2002.
9
[10]Paulay, T.; Priestley, M. J. N., Seismic design of reinforced concrete and masonry buildings, John Wiley and Sons Inc, USA, p.p. 363-460, 1992.
10
[11]Paulay, T.; Santhakumar, A. R., “Ductile behavior of coupled shear walls”, Journal of the Structural Division, ASCE, vol. 102, No. 1, p.p. 93-108, 1976.
11
[12]Prakash, V.; Powell, G. H.; Campbell, S., Drain- 2DX, Department of civil engineering, University of California, Berkeley, CA, 1993.
12
[13]Wallace, J. W.; Moehle, J. P., “Ductility and detailing requirements of bearing wall buildings”,Journal of Structural Engineering, vol. 118, No. 6,p.p. 1625-1644, 1992.
13
[14]Wallace, J. W., “A new methodology for seismic design of RC shear walls”, Journal of Structural Engineering, vol. 120, No. 3, p.p. 863-884, 1994.
14
[15]Wallace, J. W., “Seismic design of RC structural walls, part I: new code format”, Journal of Structural Engineering, vol. 121, No. 1, p.p. 75-87,1995.
15
[16]Wallace, J. W., “Seismic design of RC structural walls, part II: application”, Journal of Structural Engineering, vol. 121, No. 1, p.p. 88-101, 1995.
16
ORIGINAL_ARTICLE
Numerical Modeling of Supercritical Waves in Bends with the Finite Volume Method of Roe-TVD and Appraisal of Analytical Assumptions
In this research, using the finite volume method of Roe-TVD, supercritical flow in the curved channel of Reinauer and Hager was studied and the results were compared with the analytical method of Knapp-Ippen, the numerical method of HLL and the available experimental data of Reinauer and Hager. Then, using the numerical results, the accuracy of the assumptions of the analytical method was evaluated. It was observed that the super-critical oblique standing waves are diffused along the bend way. With an inlet Froude number, Fr0<4.2, the assumptions of constant average cross-sectional velocity along the bend and frictionless flow or constant specific energy is acceptable with an error of around one percent and the velocity variation at the external wall is tolerable with a maximum error of four percent. By increasing the inlet Froude number, flow at the internal wall dries up and the above assumptions are invalidated.
https://ceej.aut.ac.ir/article_122_20e143e57df231109d44ad63fadb6129.pdf
2011-08-23
43
50
10.22060/ceej.2011.122
Curved channels
Supercritical flow
Oblique standing waves
Finite Volume
alireza
Shamkhalchian
1
نویسنده مسئول و کارشناس ارشد آب، دانشکده مهندسی دانشگاه فردوسی مشهد
LEAD_AUTHOR
Mohammad reza
Jaefarzadeh
jafarzad@ferdowsi.um.ac.ir
2
استاد، گروه عمران‐ دانشکده مهندسی دانشگاه فردوسی مشهد
AUTHOR
[1]Karman,. V.; "Eine Praktische Anwendung Der Analogie Zwischen Ueberschall-Strömung In Offenen Gerinnen" ZAMM, Vol. 18, pp. 49-56, 1938.
1
[2]Knapp R.T. and Ippen A.T.; " Curvilinear flow of liquids with free surfaces at velocities above that of wave propagation" Proc. 5th Int. Congr. of Appl.Mech., Cambridge University Press, NewYork, pp.531-536, 1938.
2
[3]Ghaeini Hessaroeyeh, M. and Tahershamsi, A.; " Analytical model of supercritical flow in rectangular chute bends" J. Hydr. Res., Vol. 47, No. 5, pp. 566-573, 2009.
3
[4]Reinauer, R. and Hager, H.; "Supercritical Bend Flow" J. Hydr. Engng., Vol. 123(3), pp. 208-218, 1997.
4
[5]Poggi, B.; "Correnti veloci nei canali in curva" L’Energia electrica, Vol. 33, pp.465–480,1956.(Italian)
5
[6]Beltrami, G.M., Repetto, R. and Del guzzo, A.; "A Simple Method To Regularize Supercritical Flow Profiles In Bends" J. Hydr. Res., Vol. 45, No. 6,pp.773-786, 2007.
6
[7]Valiani, A. and Caleffi, V.; "Brief Analysis Of Shallow Water Equations Suitability To Numerically Simulate Supercritical Flow In Sharp Bends" J. Hydr. Engng.,Vol. 131, No. 10, pp. 912-916, 2001.
7
[8]Chow, V. T.; Open Channel Hydraulics, McGraw-Hill Intern, 680p, 1986.
8
[9]Knapp, R. T.; "Design Of Channel Curves For Supercritical Flow" 2nd paper in High-velocity flow in open channels: A symposium, Transactions, ASCE,Vol. 116, pp. 296-325, 1951.
9
[10]Toro, E.; Shock Capturing Methods For Free Surface Shallow Flows, John Wiley, ChiChester, New York,308p, 2001.
10
[11]Brufau1, P. and Garcia-Navarro, P.; "Two- Dimensional Dam Break Flow Simulation" Int. J.Numer. Meth. Fluids, Vol. 33, pp. 35–57, 2000.
11
[12]Gomez, L.; "An Unstructured Finite Volume Model For Unsteady Turbulent Shallow Water Flow With Wet-dry Fronts Numerical Solver And Experimental Validation" thesis doctoral, Universidad de a Coruna,248p, 2005.
12
[13]Leveque, R. J.; Finite Volume Methods For Hyperbolic Systems, Cambridge University press, New York,558p, 2002.
13
ORIGINAL_ARTICLE
Impact of Using Knee Elements to Improve Cyclic Performance of Chevron & Diagonal Braced Steel Frames
Braced frames have been known as frequently used earthquake resistant systems. If a limited length of a member in such a bracing system can undergo ductile behavior, the structure would sustain in a reliable performance, dissipating a large amount of seismic energy during earthquake. Knee Braced Frames, KBFs, are among the ductile systems having such mechanisms. In this paper, single-story single-bay steel Diagonal and Chevron Knee Braced Frames (DKBF & CKBF) with different configurations have been modeled using ANSYS software and their lateral behavior have been studied and compared. Comparing the hysteretic curves and ductility factors, better performance of CKBF compared with DKBF has been found due to its more knee elements and thus having higher damping. In two similar frame configurations, CKBF1 reaches to 25 mm displacement while DKBF2 displacement limits to 15 mm, such that following the same loading protocol, ductility factor of CKBF1 is 60% more than that of DKBF2.Comparing VonMises and shear stress contours for knee elements, shows the fact that the more symmetric the KBF, the more efficient the knee element in dissipating energy leading to using the whole section capacity.
https://ceej.aut.ac.ir/article_124_b4af7e34b339ffb0682053d8008317ba.pdf
2011-08-23
51
59
10.22060/ceej.2011.124
Diagonal Bracing
Chevron Bracing
Knee element
Hysteretic curve
Stress Contour
Ductility
Seyedmahdi
Mehdi Zahrai
mzahrai@ut.ac.ir
1
نویسنده مسئول و دانشیار قطب علمی مهندسی و مدیریت زیرساختهای عمرانی، دانشکده عمران، پردیس دانشکدههای فنی دانشگاه تهران
LEAD_AUTHOR
Saeed bahram
Bahram Masjedbari
2
کارشناس ارشد زلزله، پژوهشکده مرکز تحقیقات ساختمان ومسکن
AUTHOR
[1] زهرائ سیدمهدی (1384)، « بررسی عددی و آزمایشگاهی کاربرد پانل برشی برای کنترل غیرفعال ساختمان های کاربرد پانل فولادی موجود» گزارش پروژه تحقیقاتیف مرکز تحقیقات ساختمان و مسکن
1
[2] زهرائی، سیدمهدی (1388)، " رفتار تیر پیوند قائم برشی در ساختمان های فولادی"، انتشارات مرکز تحیقات ساختمان و مسکن
2
[3] زهرائی، سید مهدی و جلالی، میثم (1386)، " مطالعه تحلیلی رفتار لرزه ای قابهای مهاربندی شده زانوئی" نشریه سازه و فولاد، انجمن سازه های فولادی ایران،سال سوم زمستان 86و
3
[4] بهرام مسجدبری، سعید (1386) " بررسی کاربرد و مقایسه عضوزانوئی در مهاربندی قطری و شورن در ساختمان های فولادی متعارف" پایان نامه کارشناسی ارشد، پژوهشکده زلزله مرکز تحقیقات ساختمان و مسکن
4
[5]Aristizabal-ochoa JD. (1986). "Disposable knee bracing: Improvement in seismic design of steel frames." ASCE , Journal of Structural Engineering,Vol 112, No.7, pp. 1544–52.
5
[6]Balendra, T, Sam, M.T, & Liaw, C.Y. “Diagonal Brace with Ductile knee Anchor for a seismic steel frame” Earthquake Engineering & structural Dynamics; 1990; 19:847-858.
6
[7]Balendra, T, Lim, E.L., & Liaw, C.Y., Lee SL “Large-Scale seismic Testing of Knee-Brace-Frame” Journal of structural Engineering; 1997; 123:11-19.
7
[8]Lotfollahi M., Mofid M., “On the characteristics of new ductile knee bracing systems” , Journal of Constructional Steel Research, 2006; 62:271-281.
8
[9]Lotfollahi M., Mofid M., “On the design of new ductile knee bracing”, Journal of Constructional Steel Research, 2006; 62:282-294.
9
[10]American Institute of Steel Construction (2002), AISC 2002, “Load and Resistance Factor Design”, Manual of Steel Construction.
10
[11]International building code (2003), IBC2003, Whitier, California.
11
[12]ANSYS, Software and User Manual, revision 10, 2005.
12
[13]American Institute of Steel in Construction, Seismic Provisions for structural steel building; (AISC-1997).
13
ORIGINAL_ARTICLE
An Integrated Photogrammetric and Spatial Database Management System for Producing Structured Data According to OGC Standard and Topological Relations
3D spatial data acquired using photogrammetric techniques, is one of the most accurate and economic spatial data sources for GIS and spatial analysis. But, there are still many problems about storing, structuring, and appropriate management of spatial data obtained using photogrammetric techniques. According to the abilities of spatial database management systems, it can be said that on-line integration of photogrammetric and spatial database management systems, saves time and cost of producing, structuring and updating map products. Also, by means of theses integrated systems that produce structured data based on defined standards and topological relations between features in real world at the time of feature digitizing process, a great development in the field of reel-time and on-line GIS can be occurred. In this paper, in addition to the evaluation of necessity and importance of integration of photogrammetric and spatial database management systems, and explaining different levels of the integration, design, implementation, and test of an integrated system is discussed.
https://ceej.aut.ac.ir/article_125_d5524afaf538b8d35f22c576b81721a2.pdf
2011-08-23
61
68
10.22060/ceej.2011.125
DBMS
GIS
Integration
Photogrammetric systems
Spatial database
Topological relations
Farshid
Farnood Ahmadi
1
نویسنده مسئول و استادیار گروه نقشهبرداری دانشگاه تبریز
LEAD_AUTHOR
Hamid
Ebadi
2
دانشیار دانشکده نقشه برداری دانشگاه صنعتی خواجه نصیرالدین طوسی
AUTHOR
Ali
Mansourian
3
استادیار دانشکده نقشه برداری دانشگاه صنعتی خواجه نصیرالدین طوسی
AUTHOR
[1]Cameron, E. C. M., Hardy, P. G., 1998, Stereo Images with Active Objects-Integrating Photogrammetry with an Object Database for Map Production, ISPRS Commission II, Working Group II/2.
1
[2]Cui, Z., Cohn, A. G., Randell, D.A., 1993, Qualitative and Topological Relationships in Spatial Databases, in proceeding of the third symposium on large spatial databases, Singapore, Lecture note in Computer sciences n0 692, pp296-315.
2
[3]Ebadi, H., Farnood Ahmadi, F., Varshosaz, M., 2005, On-line Integration of Photogrammetric and CAD Based Systems with Emphasis on Logical Relations among Features, ISGIS, Malaysia.
3
[4]Ellul C., Haklay M., 2006, Requirements for Topology in 3D GIS, Review Paper, Transaction in GIS, ISSN:1361-1682, 10(2), 157-175.
4
[5]Egenhofer, M. J. , Herring, J. R., 1990, A Mathematical Framework for the Definition of Topological Relationships, in proceeding of the 4th international symposium on spatial data handling, Zurich, pp 803-813.
5
[6]Egenhofer, M. J., 1991, Reasoning about Binary Topological Relations, in proceeding of the second symposium on large spatial databases, Zurich, Lecture note in Computer sciences n0 525, pp 143-159.
6
[7]Green, D., Bossomaier, T., 2002, Online GIS and Spatial Metadata, Taylor and Francis Inc.
7
[8]Heipke Ch., 2004, Some Requirements for Geographic Information Systems: A Photogrammetric Point of View, Photogrammetric Engineering & Remote Sensing, ISSN: oo99-1112, Vol. 70, No. 2, pp. 185-195.
8
[9]Laurini, R., Milleret-Raffort, F., 1994, Topological Reorganization of inconsistent Geographic Databases,Computer and Graphics, ISSN: 0097-8493, Volume 18,Number 6, pp 803-813.
9
[10]Murray, Ch., 2002, Oracle Spatial User’s Guide and Reference, Oracle Corporation.
10
[11]Rigux, P., Scholl, M., Uoisard, A., 2000, Spatial Database with Application to GIS, ISBN:9781558605886.
11
[12]Woodsford, P. A., 2005, SYSTEM ARCHITECTURE FOR INTEGRATING GIS AND PHOTOGRAMMETRIC DATA ACOUSTION, ICWG II/IV.
12
[13]ESRI and Oracle-Solution for GIS and Spatial Data Management, An ESRI White Paper, 2000.
13
[14]The Importance of Going Open, Open GIS Consortium, 2003.
14
ORIGINAL_ARTICLE
Using Fuzzy Computation in Modelling Uncertainties in Kriging Estimation Method, Case Study: Estimation of Sodium Spatial Dispersion in Zanjan Aquifer
Various methods have been used to create continuous surfaces from sampled data. One of the most common geostatistical methods is Kriging, which provides an accurate estimation based on existing spatial structure in the sample points. However, Kriging method is sensitive to the errors in the input data, the dispersion of the sample. The purpose of this research is to develop a new method to handle the uncertainties resulted from the input data in the Kriging method. In this approach, the existing uncertainties in the input data are modeled by fuzzy computations, and the variogram variables are calculated in fuzzy mode. To test the new hybrid method, the sodium contamination values in Zanjan aquifer are used. The results show a generally improved accuracy in comparison to the ordinary Kriging method. Consideration of all equations and values in fuzzy raises the complexity of the computation. On the other hand, the integrity problems associated other researches on fuzzy kriging are resolved.
https://ceej.aut.ac.ir/article_127_e23b8dba621a3b72395540863660b0da.pdf
2011-08-23
69
78
10.22060/ceej.2011.127
Geostatistics
Fuzzy Computation
Fuzzy Semi-Variogram
Water Pollution
Zohreh
Masoomi
zohreh_massoomy@yahoo.com
1
نویسنده مسئول و دانشجوی دکتری سیستم اطلاعات مکانی، دانشگاه صنعتی خواجه نصیرالدین طوسی
LEAD_AUTHOR
Mohammad bagher
Menhaj
2
استاد و عضو هیئت علمی دانشگاه صنعتی امیرکبیر
AUTHOR
Mohammad
Sadi mesgari
3
استادیار و عضو هیئت علمی دانشگاه صنعتی خواجه نصیرالدین طوسی
AUTHOR
Mehdi
Farnaghi
4
دانشجوی دکتری سیستم اطلاعات مکانی، دانشگاه صنعتی خواجه نصیرالدین طوسی
AUTHOR
[1]تاج علی پور، زرین؛ مهدیان، محمدحسین؛ پذیرا، ابراهیم؛حیدری زاده، مجید؛ بندرآبادی رحیمی، سیما؛ کاربرد فازی کریجینگ برای تهیه نقشه فرسایندگی باران در حوزه دریاچه نمک، چهارمین همایش ملی علوم مهندسی و مهندسی آبخیزداری ایران، مدیریت حوزههای آبخیز، ١٣٨٦
1
[2] حسنی، پاک، علی اصغر؛ زمین آمار )ژئواستاتیک( انتشارات . دانشگاه تهران، چاپ اول، ۱۳۷۷
2
[3]رحیمی بندرآبادی، سیما؛ ثقفیان، بهروز؛ بررسی کاربرد تئوری مجموعه فازی در برآوردتوزیع مکانی بارندگی سالانه و ماهانه، طرح تحقیقاتی، وزارت جهاد کشاورزی، پژوهشکده . حفاظت خاک و آبخیزداری صفحهی ١٣٨٤ ،١٣٥
3
[4]مدنی، حسن؛ مبانی زمین آمار، انتشارات دانشگاه صنعتی . امیرکبیر )واحد تفرش( چاپ اول، ۱۳۷۳
4
[5]منهاج، محمدباقر؛ هوش محاسباتی )جلد سوم: محاسبات . فازی( انتشارات دانش نگار، تهران، چاپ اول، ۱۳۸۶
5
[6]Alley, W.M.; Regional Ground-Water Quality, USA,International Thomson publishing, New York, 1993.
6
[7]Bardossy, A., Bogardi, I., Kelly, W. E.; “Kriging with Imprecise (Fuzzy) Variograms”, Mathematical Geology,Vol. 22, No. 1, p.p.81-94, 1990.
7
[8]Bardossy, A., Bogardi, I., Kelly, W. E.; “Imprecise (Fuzzy) Information in Geostatistics”, Mathematical Geology, Vol. 20, No. 4, p.p.287-311, 1988.
8
[9]Bojadzier, G.; Fuzzy Sets, Fuzzy Logic, Applications,World Scientific Publication, 2nd Edition, Singapore,1998.
9
[10]Dubois, D., Prade, H.; Fundamentals of fuzzy sets,Kluwer Academic Publishers, 1st Edition, USA,Massachusetts, 2000.
10
[11]Fisher, P.F.; Development in spatial data handling, Springer, Germany, 2005.
11
[12]Goovaerts P.; Geostatistics for natural resources evaluation, Oxford University Press, 1st Edition, New York, 1997.
12
[13]Guo, D., Guo, R., Thiart, C.; “Predicting Air Pollutant,Using Fuzzy membership grade Kriging”, Computers, Environment and Urban Systems, No 31, p.p.33-51,2007.
13
[14]Illian, J., Stoyan, D.; Statistical analysis and modeling of spatial point patterns, Jhon Wiely and sons, Enhland,2008.
14
[15]Jones, A., Kaufmann, A., Zimmermann, H.J.; Fuzzy Sets theory and applications, Reidal Publishing Company, Netherlands, 1985.
15
[16]Kanevski, M., Maignan, M.; Analysis and modeling of spatial environmental data, 1st Edition, EPFL publication, Italy, 2004.
16
[17]Klir, G. J., Yuan, B.; Fuzzy Sets and Fuzzy Logic: theory and applications, 1st Edition, Upper Saddle River, NJ:Prentice Hall, 1998.
17
[18]Krešić, N.; Quantitative solutions in hydrogeology and groundwater modeling, CRC press, USA, 1998.
18
[19]Lee, K.H.; First course on Fuzzy theory and applications,Springer, Germany, 2005.
19
[20]Lodwick, W.; Fuzzy Surfaces in GIS and Geographical Analysis, CRC press, Taylor & Francis, USA, 2008.
20
[21]Olea, R.A.; Geostatistics for engineers and earth Scientists, Kluwer Academic Publishers, 1st Edition, USA, Massachusetts, 1999.
21
[22]Pedrycz, W., Gomide, F.; An Introduction to Fuzzy Sets: Analysis And Design, Massachusetts Institute of technology publication, USA, 1998.
22
[23]Piotrowski, J. A., Bartels, F., Salski, A., Schmidt, G.; “Geostatistical Regionalization of Glacial Aquitard, Thickness in Northwestern Germany, Based on, Fuzzy Kriging”, Mathematical Geology, Vol. 28, No. 4,p.p.437- 452, 1996.
23
[24]Rouhani, Sh; Geostatistics for environmental and geotechnical applications, ASTM committee, USA, Arizona, 1996.
24
[25]Stein, M.L.; Interpolation of spatial Data: Theory for Kriging, 1st Edition, Springer, USA, Chicago, 1999.
25
[26]Wackernagel, H.; Multivariate geostatistics: An Introduction with applications, third Edition, Springer, New York, 2003.
26
[27]Waller, L.A, Gotway C.A.; Applied Spatial Statistics for public health data, John Wiley and sons, USA, New Jersy, 2004.
27
[28]Zereini, F., Wolfgang, J.; Water in the Middle East and in North Africa, 1st Edition, Springer, Germany: Berlin,2004.
28
[29]Zimmermann, H.J.; Fuzzy sets theory and its applications, 4th Edition, Kluwer academic publishers, London, 2001.
29
[30]Zimmermann, H.J.; Fuzzy sets, decision making and expert systems, 1st Edition, Kluwer academic publishers,Boston, 1987.
30
ORIGINAL_ARTICLE
Optimization of Stope Geometry Using Piecewise Linear Function and MIP Approach
The MIP technique in combination with Piecewise linear function has lead to a method of stope design, which uses a one, two or three-dimensional discretisation of the ore zone (block model). An optimal economic stoping boundary is developed by optimizing the starting and ending locations for mining within each row or column of blocks (a mining panel). To determine these locations, two piecewise linear, cumulative functions are used for each row. The stope boundary model is optimized using a MIP approach that employs a special kind of variables named “special ordered sets type 2”. This paper presents a step by step explanation of the model construction. The optimizing problem is solved using the MIP approach. GAMS/Cplex11 software tool is employed to numerical examples. The model is validated by comparison with similar cases.
https://ceej.aut.ac.ir/article_129_7573dbf5e841ef2e36872122ffb155e6.pdf
2011-08-23
79
87
10.22060/ceej.2011.129
optimization
underground mine
piecewise linear function
mixed integer programming
special ordered sets type 2
Yousef
Mirzaeian
1
نویسنده مسئول و دانشجوی دکتری استخراج معدن، دانشکده مهندسی معدن و متالورژی، دانشگاه صنعتی امیرکبیر تهران؛
LEAD_AUTHOR
Majid
Ataee-pour
map60@aut.ac.ir
2
دانشیار دانشکده مهندسی معدن و متالورژی، دانشگاه صنعتی امیرکبیر تهران
AUTHOR
[1]Ovanic J., Young D. S., 1995, “Economic optimization of stope geometry using separable programming with special Branch and Bound techniques,” the 3rd Canadian Conference on Computer Applications in the Mineral Industry,Ed.: H S Mitri, Balkema, Rotterdam.
1
[2]Riddle J. M., 1977, “A dynamic programming solution of a block-caving mine layout,” in:Proceedings of the 14th International APCOM Symposium, SME, Colorado.
2
[3]S. E.Jalali and M.Ataee-pour, "A 2D Dynamic Programming Algorithm to Optimize Stope Boundaries", in 2004 Proceedings of the 13th symposium on Mine Planning and Equipment Selection, (eds. M. Hardygora et al.), Rotterdam, Balkema, pp. 45-52.
3
[4]Deraisme J., de Fouquent C., and Fraisse H., 1984, “Geostatistical orebody model for computer optimization of profits from different underground mining methods,” in: Proceedings of the 18th International APCOM Symposium, The Inst. of Mining and Metallurgy.
4
[5]Cheimanoff N. M., Deliac E. P., and Mallet J. L., 1989, “GEOCAD: an alternative CAD artificial inteligence tool that helps moving from geological resources to mineable reserves,” in: Proceedings of the 21st International APCOM Symposium, SME,Colorado.
5
[6]Alford C., 1995, “Optimization in underground mine design,” in: Proceedings of the 25th International APCOM Symposium, The Australasian Institute of Mining and Metallurgy, Melbourne.
6
[7]Ataee-pour M., 2005, “A CRITICAL SURVEY OF THE EXISTING STOPE LAYOUT OPTIMIZATION TECHNIQUES,” Journal of Mining Science, Vol. 41, No. 5
7
[8]Dash Optimization Manual, “Special Ordered Sets”, Minneapolis, MN USA,www.dashoptimization.com/home
8
/downloads/pdf/SpecialOrderedSets.pdf, 12December 2002.
9
[9]GAMS Development Corporation, Washington DC, USA, www.gams.com, 2008.
10
[10]ILOG CPLEX's mathematical optimization technology, ILOG corporate, Headquarters: France and California,
11
http://www.ilog.com/products/cplex, 2008.
12
ORIGINAL_ARTICLE
Application of Rock Engineering Systems in Evaluation of Stability of Underground Excavations
In rock engineering practice, understanding the most effective parameters and their relationships is important in order to obtain an optimum engineering design. The applications of rock engineering system (RES) in the analysis of complicated rock engineering processes have been widespread. In this method, the main parameters are located along the diagonal of the matrix, and their interactions are quantified by assigning values in the off-diagonal elements. Then, this matrix is used to assess the amount of cause and effect of each parameter within the whole system. In this paper, a rock engineering systems is constructed where the coding of the matrix is made using fuzzy mathematics. This system is used to analyze the stability of the water transmit tunnel of Seymareh Dam within the crushed zone of Graben rocks. The results are compared to those of the rock mass classification systems. It is observed that the bedding and falts are the two major factors of instability. Using the new method, the Graben rock is classified in group III, i.e. moderately stable rock, which is close to what predicted using rock classification system.
https://ceej.aut.ac.ir/article_130_4a376793f7693264c6726b634b3c3985.pdf
2011-08-23
89
95
10.22060/ceej.2011.130
Rock engineering systems (RES)
tunnel stability
engineering rock mass classification systems
crushed zone
seymareh dam
Masoud
sadeghi
1
نویسنده مسئول و دانشجوی کارشناسی ارشد مکانیک سنگ ؛ دانشگاه صنعتی امیرکبیر
LEAD_AUTHOR
Vamegh
rasouli
2
عضو هیأت علمی دانشکده مهندسی نفت؛ دانشگاه صنعتی امیرکبیر
AUTHOR
[1] کمالی بندپی، عباس؛ رفیعا، فرزان؛ بینشیان، حسین؛ “پایدارسازی تونل آببر طرح سد و نیروگاه سیمره در زون خردشده گرابن”، مجموعه مقالات دومین کنفرانس مکانیک سنگ . ایران، ۱۳۸۳
1
[2]Ping, L.U., Hudson, J.A. ; A fuzzy evaluation approach to the stability of underground excavations, Eurock 93,
2
Balkema, 1993.
3
[3]Alvarez, G.M. Neuro-fuzzy modeling in engineering geology: applications to mechanical rock excavation, rock
4
strength estimation and geological mapping.
5
A.A.Balkema, 2000.
6
[4]Hudson, J. A.; Rock engineering systems: theory and practice, ,1nd Edition, Ellis Horwood, Chichester, 1992.
7
[5]Hudson, J.A. and Harrison, J. P. Engineering Rock Mechanics- An introduction to the principles. Elsevier
8
Science,1998.
9