Volume 46, Issue 2

 

ارسال های اخیر

  • Are There Any Differences in Seismic Performance Evaluation Criteria for Concrete Arch Dams? 

    Heshmati, Masood؛ Hariri Ardebili, Mohammad Amin؛ Mirzabozorg, Hasan؛ Seyed Kolbadi, Seyed Mahdi (University of Tehran, 2013-12-01)
    Differences between stress-based and strain-based criteria are investigated in seismic performance evaluation of the arch dams in time domain. A numerical model of the coupled dam-reservoir-foundation system is prepared ...

  • The Effect of Dynamic Permeability on Velocity and Intrinsic Attenuation of Compressional Waves in Sand 

    Ghasemzadeh, Hasan؛ Abounouri, Amir (University of Tehran, 2013-12-01)
    Stress waves contain useful information about the properties of porous materials; they can be recovered through different non-destructive testing methods such as crosswell, vertical seismic profile, borehole logging as ...

  • Probabilistic Assessment of Pseudo-Static Design of Gravity-Type Quay Walls 

    Lotfollahi-Yaghin, Mohammad Ali؛ Gholipour Salimi, Mastoureh؛ Ahmadi, Hamid (University of Tehran, 2013-12-01)
    Failure of the quay walls due to earthquakes results in severe economic loss. Because of hazards threatening such inexpensive nodes of national and international transportation networks, seismic design of quay walls is ...

  • Seismic Behavior Evaluation of Concrete Elevated Water Tanks 

    Bozorgmehrnia, Saeed؛ Ranjbar, Malek Mohammad؛ Madandoust, Rahmat (University of Tehran, 2013-12-01)
    Elevated tanks are important structures in storing vital products, such as petroleum products for cities and industrial facilities, as well as water storage. These structures have various types and are constructed in a way ...

  • Numerical Simulation of Free Surface in the Case of Plane Turbulent Wall Jets in Shallow Tailwater 

    Javan, Mitra؛ Eghbalzadeh, Afshin؛ Montazeri Namin, Masoud (University of Tehran, 2013-12-01)
    Wall-jet flow is an important flow field in hydraulic engineering, and its applications include flow from the bottom outlet of dams and sluice gates. In this paper, the plane turbulent wall jet in shallow tailwater is ...

  • Effect of Crest Roughness on Flow Characteristics over Circular Weirs 

    Ghobadian, Rasoul؛ Fattahi, Ali؛ Farmanifard, Milad؛ Ahmadi, Arash (University of Tehran, 2013-12-01)
    Different construction materials with different roughness used to make circular weirs highly affect surface roughness and, in turn, flow hydraulics passing over these structures.  In the present research, numerous experiments ...

  • Safety Analysis of the Patch Load Resistance of Plate Girders: Influence of Model Error and Variability 

    Shahabian, Farzad؛ Elachachi, Sidi Mohammed؛ Breysse, Denys (University of Tehran, 2013-12-01)
    This study aims to undertake a statistical study to evaluate the accuracy of nine models that have been previously proposed for estimating the ultimate resistance of plate girders subjected to patch loading. For each model, ...

  • Predicting Deficient Condition Performance of Water Distribution Networks 

    Gupta, Rajesh؛ Abdy Sayyed, Mohd Abbas (University of Tehran, 2013-12-01)
    A water distribution network is subjected to various abnormal conditions such as pipe breaks, pump failures, excessive demands etc. in the design period. Under such conditions, the network may not be able to meet required ...

  • A Study of the Rockfill Material Behavior in Large-Scale Tests 

    Ghanbari, Ali؛ Hamidi, Amir؛ Abdolahzadeh, Naseh (University of Tehran, 2013-12-01)
    Inspecting the behavior of the rockfill materials is of significant importance in analysis of rockfill dams. Since the dimensions of grains in such materials are greater than the conventional sizes suitable for soil mechanics ...

  • Analytical Solution for Two-Dimensional Coupled Thermoelastodynamics in a Cylinder 

    Eskandari-Ghadi, Morteza؛ Rahimian, Mohammad؛ Mahmoodi, Amin؛ Ardeshir-Behrestaghi, Azizollah (University of Tehran, 2013-12-01)
    An infinitely long hollow cylinder containing isotropic linear elastic material is considered under the effect of arbitrary boundary stress and thermal condition. The two-dimensional coupled thermoelastodynamic PDEs are ...