فهرست مطالب

Journal of Civil Engineering Researchers
Volume:3 Issue: 1, Winter 2021

  • تاریخ انتشار: 1401/03/10
  • تعداد عناوین: 2
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  • Vatani A, Sadeghian S Page 1

    This paper first offers information on blast wave and blast loading. Then, the dynamic analysis of a single concrete slab against blast loading was conducted by the ABAQUS software program. Maximum stress in CFRP plates in the center of the reinforced concrete slab was observed in all loading phases, since this area was in the maximum stress zone. It is also an efficient method of retrofitting the slabs against blast loading using externally fiber-reinforced polymer attached to the tensile side of the slab.© 2017Journals-Researchers. All rights reserved.

    Keywords: Blast load, reinforced concrete slab, CFRP, retrofitting
  • Sepehr Saadat Khodashahri, aMorteza Jamshidi Page 2

    Structural control can be classified as active, semi-active and inactive. The main purpose of the passive control system is to reduce the participation of the main structural elements in the loss of input energy by plastic deformation. Delivery metal dampers, despite their simplicity, as structural control systems, offer special features such as economic efficiency without the need for advanced technology or expertise to build and install the system. The shear wall of a self-propelled steel plate is a lateral force-resistant system that can be replaced with steel filler plates by providing system return and limiting ductility.In the present study, it was tried to determine the characteristics and achievements obtained by evaluating four new and valid researches in order to evaluate the research of structural control systems including metal (modern) dampers and self-centered steel shear wall. The results of the present study showed that the use of metal damping system (composite, grooved and passive) and self-centered steel shear wall caused the reduction of plastic damage in columns and beams. Also, the amountof floor drift and shear axial force have a relatively large reduction. Also, due to the high cost of building construction, theuse of these devices reduces the economic value of building construction.

    Keywords: Passive Control of Structure, Metal Damper, Steel Shear Wall, Earthquake, Energy Dissipation