Mohammad Moravvej

Mohammad Moravvej
The University of Calgary | HBI · Department of Civil Engineering

Doctor of Philosophy

About

36
Publications
3,926
Reads
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31
Citations
Additional affiliations
January 2015 - April 2015
The University of Calgary
Position
  • Research Assistant
Description
  • Structural Steel Design
September 2014 - December 2014
The University of Calgary
Position
  • Research Assistant
Description
  • Solid Mechanics
January 2014 - present
Fundamental of Engineering Review Center
Position
  • Instructor
Description
  • Mechanics of Materials

Publications

Publications (36)
Chapter
Identification of structural damage is a vital process for ensuring safety and serviceability of bridge infrastructure. Several studies have demonstrated effectiveness of vibration-based damage identification techniques (VBDITs) in detecting distress in bridges. In such techniques, damage is defined as undesirable changes in the structural dynamic...
Conference Paper
Full-text available
Identification of structural damage is a vital process for ensuring safety and serviceability of bridge infrastructure. Several studies have demonstrated effectiveness of vibration-based damage identification techniques (VBDITs) in detecting distress in bridges. In such techniques, damage is defined as undesirable changes in the structural dynamic...
Article
Utilization of fiber-reinforced polymers (FRPs) in concrete structures, particularly bridges, has promised a safe and satisfactory performance. However, the structural performance of FRP-reinforced bridges can be affected by occurrence of various types of damage. This paper presents structural damage identification in FRP-reinforced bridge truss gi...
Article
An experimental evaluation of a hybrid FRP-concrete slab-on-truss girder bridge system is presented. The girders consist of pretensioned top and bottom concrete chords connected by vertical and diagonal truss members made of concrete-filled fiber-reinforced polymer (FRP) tubes. The truss members are connected to the chords by means of long double-h...
Conference Paper
Full-text available
Structural health monitoring of bridges is essential for ensuring a safe and satisfactory performance of bridge infrastructure through identification of structural damage at the earliest time possible. However, the efficacy of damage identification techniques (DITs) can be affected by variations in the operational and environmental conditions of br...
Conference Paper
An experimental evaluation of a hybrid FRP-concrete slab-on-truss girder bridge system is presented. The girders consist of pretensioned top and bottom concrete chords connected by vertical and diagonal truss members made of concrete-filled fiber-reinforced polymer (FRP) tubes. The truss members are connected to the chords by means of long double-h...
Conference Paper
p>The fatigue behaviour of a novel precast hybrid bridge truss girder system is experimentally investigated. The girders consist of pretensioned top and bottom concrete chords connected by vertical and diagonal truss members made of concrete-filled fibre reinforced polymer (FRP) tubes. The truss members are connected to the top and bottom chords by...
Conference Paper
An experimental implementation of a relative wavelet entropy (RWE)-based structural damage identification technique (DIT) is presented. The technique is capable of detecting and localizing structural damage, as well as estimating its severity, without the need for any data to be collected from undamaged (reference) state of structure. The bases of...
Article
p>An experimental implementation of a relative wavelet entropy (RWE)-based structural damage identification technique (DIT) is presented. The technique is capable of detecting and localizing structural damage, as well as estimating its severity, without the need for any data to be collected from undamaged (reference) state of structure. The bases o...
Conference Paper
An experimental investigation into the performance of a novel precast hybrid FRP-concrete bridge truss girder system under static loading is presented. The girders consist of pretensioned top and bottom concrete chords connected by vertical and diagonal truss members made of concrete-filled fibre-reinforced polymer (FRP) tubes. Under gravity loads,...
Conference Paper
Deterioration of bridge infrastructure has become a global concern. Recently, fiber-reinforced polymers (FRPs) have been used in concrete bridge construction to mitigate durability problems and to make infrastructure sustainable. However, even concrete bridges that include the corrosion-resistant FRP materials can still be subjected to various type...
Article
Full-text available
Bridge infrastructure is designed and built to be safe against failure and to perform satisfactorily during their service life. However, aging, inadequate maintenance, adverse environmental conditions, and constantly growing transportation demand cause deterioration and induce damage in bridges. To ensure both safety and serviceability of bridges,...
Conference Paper
In many parts of the world, bridges have been deteriorating at an alarming rate due to aging, adverse environmental conditions, and constantly growing transportation demand. To develop sustainable transportation infrastructure, fiber reinforced polymers (FRPs) have been utilized in bridge structures. However, hybrid FRP-concrete bridges are still s...
Conference Paper
Full-text available
A smart structural health monitoring system for damage identification in bridges is proposed. The system is based on the fact that structural damage induces abrupt changes and singularities in measured acceleration signals of bridges and that discrete wavelet transform is a powerful tool to decompose the measured signals in order to detect these si...
Conference Paper
Civil infrastructure, particularly bridges, is designed and built to be safe against failure and to perform satisfactorily during their service life. However, this infrastructure has been deteriorating at an alarming rate due to aging, inadequate maintenance, adverse environmental conditions, and constantly growing transportation demand. Utilizatio...
Conference Paper
The results of an experimental investigation into the behaviour of precast hybrid FRP-concrete, two-panel truss girders under static loading are presented. The investigation is part of a comprehensive research program on the development of a corrosion-free system for short and medium span bridges. The truss girders consist of pretensioned concrete...
Conference Paper
This study focuses on 3 Hz fatigue load testing of a reinforced concrete beam in laboratory conditions. Three-dimensional (3D) image time series of the beam’s top surface were captured with the Microsoft time-of-flight Kinect 2.0 sensor. To estimate the beam deflection, the imagery was first segmented to extract the top surface of the beam. The cen...
Article
Full-text available
This study focuses on 3 Hz fatigue load testing of a reinforced concrete beam in laboratory conditions. Three-dimensional (3D) image time series of the beam’s top surface were captured with the Microsoft time-of- flight Kinect 2.0 sensor. To estimate the beam deflec- tion, the imagery was first segmented to extract the top surface of the beam. The...
Conference Paper
This presentation presents an experimental investigation on the damage identification in concrete beams by proposing a vibration-based response-only reference-free method using relative wavelet entropy (RWE). Main advantages of the proposed method are that (1) there is no need to control or even measure the input excitation (response-only); (2) the...
Conference Paper
Full-text available
Time-of-flight cameras are used for diverse applications ranging from human-machine interfaces and gaming to robotics and earth topography. This paper aims at evaluating the capability of the Mesa Imaging SR4000 and the Microsoft Kinect 2.0 time-of-flight cameras for accurately imaging the top surface of a concrete beam subjected to fatigue loading...
Conference Paper
Concrete-filled fibre-reinforced polymer (FRP) tubes have been used in civil structures for many years. Concrete-filled FRP tube (CFFT) element integrates the best characteristics of both the FRP and the concrete which results in increase in the compressive load carrying capacity and ductility, as well as enhancing durability of the element. Howeve...
Conference Paper
An innovative system for short and medium-span bridges comprising transversely spaced hybrid precast prestressed concrete truss girders and a cast-in-situ or precast concrete deck slab has been developed. The girders have top and bottom concrete chords connected by vertical compression and diagonal tension members made of concrete-filled fiber rein...
Conference Paper
An innovative hybrid system for short- and medium-span bridges has been developed. The system comprises precast prestressed concrete truss girders and cast-in-situ or precast concrete deck. The girders consist of top and bottom concrete chords connected by vertical compression and diagonal tension members made of concrete-filled fiber reinforced po...
Conference Paper
A novel hybrid bridge system comprising transversely spaced precast prestressed concrete truss girders and a concrete deck cast or placed on top has been developed. The girders have top and bottom concrete flanges connected by precast vertical and diagonal truss members made of glass fiber-reinforced polymer (GFRP) tubes filled with concrete. The v...
Conference Paper
Use of fibre-reinforced polymer (FRP) composites for confining structural concrete elements and enhancing their strength and ductility has increased significantly over the recent years. Hollow circular FRP sections (i.e. tubes) with the fibres oriented mainly in the circumferential direction are most suitable for this purpose. Concrete-filled FRP t...
Conference Paper
An innovative corrosion-free system for short- and medium-span bridges has been developed at the University of Calgary. The system consists of precast prestressed concrete truss girders and cast-in-situ or precast concrete deck. The girders are made of top and bottom concrete flanges connected by vertical and diagonal members made of concrete-fille...
Conference Paper
Concrete-filled fibre-reinforced polymer (FRP) tubes are becoming widely used as hybrid elements in civil engineering structures such as piles, columns and girders. The concrete-filled FRP tube (CFFT) system enhances the strength, stiffness, and ductility, as well as energy absorption of the structure. However, performance of the CFFT may be reduce...
Conference Paper
Every year, earthquake threats lots of lives, leads to lots of failures, confronts governments with lots of costs and challenges structural and earthquake engineers all around the world. Iran as a potent place of earthquake experiences several quakes each year. Therefore, retrofitting of civil structures is essential worldwide, especially in Iran....
Conference Paper
Two simply supported reinforced concrete slabs have been built at the concrete laboratory of Sharif University of Technology. They have the same size and dimension but they differ in their cavity size. The slabs have been tested using forced vibration test where an impact hammer has been used to apply the external load. The acceleration of the slab...

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