Mohammad Alhassan

Al Ain University · Faculty of Engineering

This study evaluated the effectiveness of carbon fiber-reinforced polymer (CFRP) composites in strengthening RC beams for a simple span overhanging from both ends and subjected to equal concentrated forces at each end. This innovative loading configuration allows for investigating the performance of CFRP composites under pure moment within the midd...

The sustainable built environment concept has recently gained enormous attention from academic and industrial organizations. The growth in climate-related disasters and pandemics, continuing difficulties in the energy sector, and consumer awareness regarding resources’ conservation and sustainability are considered the driving factors influencing p...

This study attempts to understand the source of variation in the Students' Evaluation of Teaching (SET) of mathematics courses by comparing the data structure of engineering major students and mathematics major students' datasets. The sample considered in this study consists of 644 students distributed into two majors: 237 mathematics students and...

This study is conducted to evaluate the effectiveness of a unique product named Liquid Natural Clay (LNC), produced by Desert Control Middle East LLC, with the intent to revolutionize the war against desertification. The LNC is an innovative solution to a problem that today is more relevant than ever, enabling sandy soil to retain water, improving...

The growth of waste management as a crucial component of construction project management is the result of growing knowledge of the problems associated with managing recyclable waste from building and demolition wastes. Reducing construction and demolition waste is one of the most essential things that reflects the sustainable future of structural e...

This paper presents an artificial neural network (ANN)-based critical review of the ACI 318 Code formula for calculating the effective moment of inertia (I e) of reinforced concrete (RC) beams. The value of I e varies along the span length from a gross cross-sectional moment of inertia (I g) for uncracked sections to a cracked cross-sectional momen...

Abstract: Limiting the consumption of nonrenewable resources and minimizing waste production and associated gas emissions are the main priority of the construction sector to achieve a sustainable future. This study investigates the sustainability performance of newly developed binders known as alkali-activated binders (AABs). These AABs work satisf...

This paper is intended to examine the efficiency of utilizing the FRP composite material with an externally bonded technique in enhancing the behavior of the damaged B-C joints and controlling their failure mode using the NLFEA approach. At first, the modeled Beam-Column joint was validated as per the previously-attained experimentally-attained res...

The newly developed alkali-activated binders are known to have an emerging potential in developing and improving the idea of greenhouse building according to sustainability requirements. These new binders are based on the principle of using ashes from mining and quarrying wastes as raw materials which can be used in the remediation process of toxic...

In concrete production, the use of high-volume fly ash (FA) as the cement substitute became interesting to achieve more sustainable and eco-friendly construction materials. However, concrete produced using high volumes of FA as cement substitute suffers from various limitations such as low strength at early ages. Considering the engineering solutio...

Latex-modified concrete (LMC) bridge deck overlay established its reputation as a superior overlay system as a result of its strength and durability performance. Integration of macro synthetic fibers (polymer extruded polypropylene or polyethylene) within the LMC mixture provides residual tensile strength and toughness characteristics. Synthetic fi...

Integration of macro synthetic fibers within the concrete mixture provides residual tensile strength and toughness characteristics. Majority of existing studies in this regard focus on the impact of fibers on improving mechanical properties and durability without considering fracture mechanics parameters: energy release rate (GI) and stress intensi...

Determining the amount of energy required for crack propagation in concrete structures based on fracture mechanics principles is interesting. Fracture energy of concrete, as a quasi-brittle material, is an effective index for safe design of structures and failure behavior modelling. The nonlinear behavior of concrete in the fracture process is comp...

Latex-modified concrete (LMC) overlay demonstrated superior performance as a shielding method for bridge decks. However, cracking glitches and the consequential debonding remain the foremost concern in bridge overlays in general including the LMC overlay. Researchers and practitioners looked for various measures to control this common challenge; an...

In this study, the principal objective was to obtain the ratio between the shear strength of Unidome Slab System (USS) and assess the applicability of the ACI 318 Code Provisions for estimating the shear strength of the USS. Four specimens were fabricated and tested including a reference conventional solid slab and three identical USS. The slabs we...

The most important sectors that integrate renewable energy resources and sustainable technologies in their applications are the civil engineering and architectural sectors as in green structures. Jordan is one of the countries that hosts many refugees due to unstable situations in the region, and therefore, the main aim of this study is to develop...

It is rather costly and difficult to experimentally evaluate the performance of concrete-filled tubular (CFT) circular steel columns exposed to combined axial and cyclic lateral loads. This research paper uses the nonlinear finite element (NLFEA) technique to assess the influence of using carbon-fiber-reinforced polymer (CFRP) laminates on the stru...

In this study, nonlinear finite element analysis (FEA) was conducted to investigate the shear behavior of reinforced concrete (RC) beams encompassing hybrid CFRP strips and steel stirrups. Primal FEA models were calibrated and verified by comparing the load-deflection response, cracking, and failure modes with the experimentally tested RC beams. A...

This study illuminates the impact of reasonable anchoring of carbon fiber-reinforced polymer (CFRP) composites as an adaptive flexural strengthening technique for reinforced concrete (RC) beams. To assess the usefulness of the proposed anchoring technique, 38 RC beams were fabricated and tested. The specimens were varied in terms of three major par...

Recently, the plate bending analysis has been interpreted in terms of the tensor’s components of curvatures and bending moments by presenting the conceptual perspectives of the Hydrostatic Method of Analysis (HM) and theoretical formulations that combine the continuum mechanics with the graphical statics analysis, the theory of thin orthotropic and...

This study evaluates the effectiveness of integrating Carbon Fiber Reinforced Polymer (CFRP) composites for improving the response of interior Beam-Column (B-C) connections under the combined effects of axial and lateral cyclic loads. Eighteen Reinforced Concrete (RC) B-C connection models were simulated using the nonlinear Finite Element Analysis...

This paper provides an approximate analysis of quadrilateral slabs having various cases of aspect ratios and boundary conditions based on actual two-way action. Nine slabs with different boundary conditions, each having 11 aspect ratios were analyzed using SAP2000 software, thereafter, robustly validated against mathematical solutions. In this arti...

Although many researchers have studied the shear and flexural behavior of recycled aggregate concrete (RAC) beams, code provisions have not been modified yet to take RAC into account. Therefore, the slow development of code provisions to govern RAC usage limited their widespread use as a construction material for concrete structures. Several factor...

Bridges with reinforced concrete deck slabs are more vulnerable to environmental-induced deterioration mainly due to corrosion. Carbon and glass fiber reinforced polymer (FRP) bars are getting attention as an alternative to steel bars to enhance the overall performance of the concrete bridge deck slabs and minimize corrosion-induced deteriorations....

Shear lagging, resulting from non-uniformity of stress distribution around the connection, is one of the most important design considerations in steel construction since it reduces the load capacity of tension members. In this paper, the rationality of the AISC provisions for calculating the shear lag factor (U) for W and WT-sections was assessed....

Hybrid use of Carbon fiber reinforced polymer (CFRP) composites with conventional construction materials offers an ample opportunity to develop economical and high-performance structures. However, anchoring and debonding problems remains a challenge for the accomplishment of this technique. In this study, a novel application was implemented in whic...

Hybrid use of Carbon fiber reinforced polymer (CFRP) composites with conventional construction materials offers an ample opportunity to develop economical and high-performance structures. However, anchoring and debonding problems remains a challenge for the accomplishment of this technique. In this study, a novel application was implemented in whic...

The concern plate’s behavior was the growth of the extrema positive tensors of both mean (hydrostatic) and deviatoric moments. Systematic consideration of the limits and growth responses of the mean and deviatoric tensors at the extrema positive sections were calculated. It was found that the use of the shorter dimension for the moment normalizatio...

Due to their inherent slenderness and lightness, pedestrian bridges are typically subtle to human induced vibrations. This study was conducted to investigate the effect of human induced vibrations on common simply supported steel footbridges in Jordan, especially those with natural frequencies between 2 to 4 Hz. Such fundamental frequency is close...

As the effectiveness of prestressing is crucially linked to the transfer length (TL) of the strands, this study used Artificial Neural Network (ANN) technique for optimal prediction of TL based on more than 458 data points collected from various literature works. The ANN technique allowed for investigating the effect of various key parameters class...

In this study, a total of 40 concrete blocks were casted and externally strengthened with carbon fiber reinforced polymer (CFRP) composites. The principal objective was to evaluate the influence of special anchoring holes on the bond-slip behavior between CFRP composites and concrete. The bonding surface of each concrete blocks was prepared and the...

This study provides a case study showing the effectiveness of utilizing Artificial Neural Networks (ANNs) in prestressed concrete. The effectiveness of prestressing is crucially linked to the transfer length (TL) of the prestressing strands. The ANN technique was used for accurate prediction of TL based on more than 458 data points collected from v...

Highlights  Innovative prediction of the transfer length (TL) of prestressing strands is achieved herein with the aid of Artificial Neural Network (ANN)  The ANN uniquely allows for investigating the effect of many key parameters classified into various categories  A simplified Analytical model was developed considering the most significant p...

Carbon fiber reinforced polymer (CFRP) composites have wide applications as an external strengthening/repair technique for deteriorated reinforced concrete members. Nevertheless, debonding and anchoring problems remain a challenge for success of this technique. In this study, an innovative application was implemented in which CFRP strips were integ...

As the effectiveness of prestressing is crucially linked to the transfer length (TL) of the strands, this study used Artificial Neural Network (ANN) technique for optimal prediction of TL based on more than 458 data points collected from various literature works. The ANN technique allowed for investigating the effect of various key parameters class...

Experimental evaluation of the structural behaviour of concrete-filled tubular (CFT) circular steel columns under the combined effects of axial and cyclic lateral loads is costly and challenging. This study provides a non-linear finite-element analysis (FEA) of 21 models of CFT circular steel columns wrapped with several carbon-fibre-reinforced pol...

Since the days of yore, plate’s flexural analysis and formulation were dependent on the assumed coordinate system. In uncovering the coordinates-independent flexural interpretation, in this study, the plate bending analysis has been interpreted in terms of the tensor’s components of curvatures and bending moments, in accordance with the continuum m...

The structural behavior of rectangular reinforced concrete (RC) columns confined with different configurations of carbon fiber-reinforcement polymer (CFRP) sheets is investigated by using nonlinear finite element analysis (NLFEA). SOLID65, LINK8, SOLID45 and SOLID46 elements represented the concrete, steel bars, steel plates and CFRP sheets, respec...

The influence of discontinuous structural synthetic fibers (DSSF) on the bond-slip behavior between concrete and carbon fiber reinforced polymer (CFRP) composites was investigated using a double-shear pull-off test. The tested blocks were divided into three groups depending on the DSSF content. The CFRP composites were bonded to the blocks (with an...

This paper provides innovative analysis of rectangular plates having various aspect ratios and boundary conditions based on a true understanding of the two-way action. Nine plates with different boundary conditions, each having 11 aspect ratios were uniquely analysed using SAP2000 software. The finite element analysis results were validated against...

Concrete is highly non-linear material which is originating from the transition zone in the form of micro-cracks, governs material response under various loadings. In this paper, the constitutive models published by many researchers have been used to generate novel stiffness parameters and constitutive curves for concrete. Following such linear mat...

This paper presents a novel and efficient nonlinear model developed for analysis of reinforced concrete slabs under monotonic loading. The model accounts for the presence of reinforcing steel and its influence on the micro-cracks formation and propagation; as well as tension stiffening due to steel-concrete residual bond. In the finite element anal...

In this study, the behavior of the anchored carbon fiber reinforced polymer (CFRP) plain concrete beams with various dosages of macro discontinuous structural synthetic fiber (DSSF) were investigated. Seventy two plain concrete beams were casted and tested. The investigated parameters in this study are the dosages of DSSF, length of CFRP sheets, an...

The behavior of beam-column (B-C) connections received thorough investigation during the past decades focusing on critically-detailed connections before and after strengthening. Various techniques for strengthening of the B-C connection were previously evaluated using high performance concrete jackets (HPCJ), carbon-fiber reinforced polymer (CFRP)...

Civil engineering (CE) is one of the broadest engineering fields, if not the most, and requires undergraduate students to be exposed to a variety of topics; each can be easily recognized as a major in its own. Establishing a successful curriculum is a major challenge CE programs and faculty face, since it is a major block toward building a sustaina...

In this study, thirty-two lightweight concrete (LWC) beams were casted and tested as simply supported beams under four points’ loading. The investigated parameters were the volume fraction (Vf) of discontinuous structural synthetic fiber (DSSF) and longitudinal steel reinforcement ratio (ρ). The modulus of rupture of structural LWC is low due to th...

Pedestrian bridges of are often sensitive to vibrations causing discomfort to the pedestrian and in worst cases may cause resonance and catastrophic failure. Pedestrian bridges with natural frequencies around 3 Hz may experience such behavior. Synchronization is a very important factor in increasing the severity of loading, by which people respond...

Concrete structures are often subjected to long-term static and short-term dynamic loads. Due to a relatively low tensile strength and energy dissipating characteristics, the impact resistance of concrete is considered poor. This study investigates the feasibility of using polypropylene fibers to improve the impact resistance of reinforced concrete...

Incorporating discontinuous structural synthetic fibers in general enhances the performance of concrete and increases its durability by minimizing its potential to cracking and providing crack arresting mechanism. Synthetic fibers are non-corrosive, alkali resistant, simple to apply, and added in small quantities due to their low density; thus, a s...

Concrete slabs and bridge decks experience early ages cracks mainly due to volumetric changes associated with moisture and temperature variations. These cracks have no immediate effect on their safety, but they have detrimental effects on their durability and long-term performance. This paper presents an experimental investigation on quantification...

Use of discontinuous structural synthetic fibers (DSSF) improves the tensile strength of concrete and its post-cracking residual strength; nevertheless, the contribution of fibers is not currently considered in most design codes. This study is conducted to evaluate the influence of using DSSF on the shear strength and failure mode of normal weight...

The next edition of the Olympic Games is going to be held in Rio de Janeiro, Brazil, in 2016. The city of Rio de Janeiro is currently preparing the venues needed for the event. One of the venues that have to be prepared from scratch is a tennis complex. Signature tennis complexes such as theAll England Club tennis complex in London (Wimbledon) were...

Designers and traffic engineers have to make decisions on selecting a pedestrian treatment whenever designing a new pedestrian facility or retrofitting an existing one. The goal is either to provide or improve pedestrian safety at pedestrian crossing facilities, including controlled locations of signalized intersections and approaches with stop and...

The civil engineering program at Indiana University-Purdue University Fort Wayne was established in the fall of 2006. The program went through ABET accreditation in 2011 and was granted accreditation in August 2012. A key component of getting accreditation is the development and the implementation of an effective and continuous assessment based pro...