Mohammad Jamshidi Avanaki- PhD in Earthquake Engineering
- Researcher at University of Tehran
Mohammad Jamshidi Avanaki
- PhD in Earthquake Engineering
- Researcher at University of Tehran
Head of Civil Engineering Department, International University of Chabahar (Iran)
About
19
Publications
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Introduction
Mohammad Jamshidi Avanaki currently works at the School of Civil Engineering, University of Tehran. Mohammad does research in Structural Engineering and Civil Engineering. Their current project is 'Seismic performance of steel fiber reinforced segmental lining tunnels'.
Current institution
Additional affiliations
January 2012 - October 2018
Publications
Publications (19)
In this paper, the effects of different steel fiber reinforced concrete (SFRC) composites on the flexural response of segmental joints under seismic actions is investigated numerically based on experimental results. The results in terms of moment – rotation (M – θ) curves derived from an experimental test set-up, are used to calibrate and verify a...
In recent years, application of fibers as a replacement for conventional reinforcement in segmented lined tunnels has gained great interest due to resulting cost and time savings. In seismically active regions, the seismic vulnerability of underground tunnels is of great concern. The aim of this paper is to investigate the effects of different comp...
In recent years, a new type of fiber reinforced concrete (FRC), called hybrid FRC, comprised of fibers of the same material but with different geometry has been developed. The aim of this paper is to investigate the influence of volume fraction and aspect ratio of steel fibers on the basic engineering properties of hybrid steel fiber reinforced con...
Hybrid steel fibre-reinforced concrete (HSFRC) composites, constituted from different geometries of steel fibres, benefit from positive performances of different fibre geometries. When applied in segmental tunnels, different aspects of their structural performance should be adequately evaluated to ensure a safe and durable design. In this paper, th...
Application of Fiber Reinforced Concrete (FRC) as the primary constitutive material of segmental tunnels is considered a feasible option in modern tunneling projects. The design of underground tunnels in active seismic zones is performed with specific seismic considerations to ensure a safe and viable design. The response modification factor (R-fac...
In recent years, geopolymer cements, have gained significant attention as an environmental-friendly type of cement.
In this experimental research, effects of different alkaline activator solutions and variations of associated parameters, including
time of addition, concentration, and weight ratio, on the mechanical strengths of Granulated Ground...
Infill walls are realized to affect the nonlinear response of infilled frames. Yet, due to modeling and analysis complexities, infill walls are usually neglected in the modeling and analysis phase. In this paper, the nonlinear behavior of infilled steel braced frames is investigated using the Endurance Time (ET) method. The ET method is a novel and...
In recent years, geopolymers, as a new class of green cement binders, have been considered as an environmental-friendly alternative to Ordinary Portland Cement (OPC) which can potentially reduce negative environmental impacts of OPC effectively. In this experimental research, effects of different alkaline activator solutions and variations of assoc...
Research on fiber reinforced Geopolymer Concrete (GPC), as a novel type of GPC with enhanced ductility characteristics has gained interest. In this paper, mechanical and physical properties of GPC reinforced with different fiber types (Polypropylene or PP, 2-part PP, 4-part polyolefin) and volume content (0.15, 0.2 and 0.25%) is investigated. Initi...
Recent advancements in fiber reinforced concrete (FRC) technology has led to the development of fibrous concrete composites, comprised of fibers with different material and/or geometry, commonly known as hybrid FRC. In one type of hybrid FRC composites, advantageous behaviors of fibers of the same material but with different geometries are gathered...
In recent years, geopolymers, as a new class of green cement binders, have gained significant attention as an environmental-friendly alternative to Ordinary Portland Cement (OPC) which can potentially reduce negative environmental impacts of OPC. Fiber Reinforced Geopolymer Concrete (FRGPC) is known as a new type of concrete with enhanced ductility...
The usage of fibers in concrete segmental tunnels has led to considerable structural and durability improvements. In seismic regions, structures are designed to resist earthquake effects and maintain their functionality. Therefore, it is necessary to specifically study the structural behavior and response of Fiber Reinforced Concrete (FRC) segmenta...
In recent years, incorporating fibers as the main reinforcement in segmental lined tunnels has gained significant interest. Damage to segmental linings due to the thrust force of TBM jacks is one of the main problems that arises in the assembly phase, reducing serviceability and durability of tunnels. The aim of this paper is to experimentally and...
In recent years, usage of fibers as reinforcement in replacement of conventional rebar in precast concrete tunnel segments has gained significant interest. In seismic regions, the structural performance of underground tunnels under earthquake events is of great con-cern for tunnel designers. This paper investigates the effects of incorporating stee...
Iran is located in one of the most active seismic regions in the world. Urban development and structures consume a considerable amount of GDP each year. Despite this, a concerning level of unpreparedness and negligence exists to employ comprehensive maintenance strategies for urban structures. In this paper, maintenance programs categorized based o...
Estimation of collapse performance is primarily conducted through Collapse Fragility
Curves (CFC’s). The EDP-based approach is the main scheme for attaining such curves and
employs IDA. Obtaining CFC’s from IDA results is tremendously time consuming and
computationally demanding. Introduction of more efficient methods of seismic analysis, can
poten...
: Nonlinear analysis of infilled frames using conventional analysis methods, such as incremental dynamic analysis (IDA), requires high levels of modeling complexity and computational effort; therefore the infill panel is often neglected. Introducing more simple and straightforward methods of analysis, can be a solution to this problem. The Enduranc...
Questions
Question (1)
Hi, I wanna numerically model (FEM) a tunnel section in 2D an perform a dynamic analysis. I want to use crack models for the steel fiber reinforced concrete liner. Yet softwares like plaxis which are great for tunneling problems don't have these material models, but u can define them as user defined material models using subroutines (http://www.plaxis.nl/files/files/2D-3-Material-Models_02.pdf). Does anyone have the crack material model subroutine (as a .dll file)?
Or equivalently does anyone have any example models of 2D tunnel sections in layered soil in ABAQUS?
Thanks in advance
