چکیده مقاله
Underground spaces are a critical component of modern infrastructure In seismic regions such asIran, these spaces must withstand not only static loads but also seismic loads Due to the confinementof tunnels by a large mass of soil, the induced vibrational forces on the tunnel are reduced Therefore,in many cases, static design ensures stability against low intensity and short duration earthquakes However, these structures are not immune to severe seismic loads, such as those from the Kobe, Chi Chi, and Kocaeli earthquakes Seismic design is especially crucial for subway stations constructedin soft soils These structures are often built at shallow depths with a rectangular cross section, whichgives them different seismic properties compared to circular tunnels Due to low overburden, reducedsoil stiffness, and greater wall flexibility at these stations, the potential for deformation is higher Ingeneral, the seismic design of underground structures considers the deformation of the structure bythe surrounding soil, often influenced by their interaction Common methods in this field includepseudo static and time history methods This paper starts with a dynamic time history analysis of ametro station, followed by a pseudo static analysis using the structure soil interaction method Thecomparison of these methods shows a close range of outputs overall However, the pseudo staticmethod yields higher levels of internal forces, leading to an overestimation during the design process Nevertheless, it offers the advantage of less complexity for analyses and requires less calculationtime
کلیدواژهها
نویسندگان
Rashid Hajivand Dastgerdi
Faculty of Geo Data Science, Geodesy, and Environmental Engineering, AGH Universityof Science and Technology, Krakow, Poland
Saman Naghikhani
Department of Mining Engineering, Amirkabir University of Technology, Tehran, Iran
Mohammad Amir Mirzaei
Department of Geotechnics, Faculty of Engineering, University of Science and Culture, Tehran, Iran
شیوه ارجاع
Hajivand Dastgerdi, Rashid and Naghikhani, Saman and Mirzaei, Mohammad Amir,1403,Comparison of Time History and Pseudo-StaticAnalysis Methods in Dynamic Analysis ofUnderground Structures,Second International Conference on applied researches in civil engineering, architecture and urban planning
ارائهشده در
مجموعه مقالات دومین کنفرانس بین المللی تحقیقات پیشرفته در مهندسی عمران، معماری و شهرسازی20 آبان 1403