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Browsing by Author "malqedra"
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An Intelligent Tuned Harmony Search Algorithm for Optimum Design of Steel Framed Structures to AISC-LRFD
Alqedra, Mamoun; Khalifa, Ashraf; Arafa, Mohammed (SCIENCEDOMAIN international, 2015)An optimum design of non-linear steel frames using an effective artificial intelligence algorithm is presented. To consider the actual behavior of steel connections, the studied steel frames were designed as semi rigid ... -
Artificial Bee Colony (ABC) algorithm in the design optimization of RC continuous beams
Jahjouh, MM; Arafa, Mariam; Arafa, Mohammed; Alqedra, Mamoun (Springer-Verlag, 2013)The objective of this study is to obtain the optimum design for reinforced concrete continuous beams in terms of cross section dimensions and reinforcement details using a fine tuned Artificial Bee Colony (ABC) Algorithm ... -
Assessment on engineering properties and CO2 emissions of recycled aggregate concrete incorporating waste products as supplements to Portland cement
Alnahhal, Mohammed Fouad; Alengaram, Ubagaram Johnson; Jumaat, Mohd Zamin; Abutaha, Fuad; Alqedra, Mamoun; Nayaka, Ramappa Ramesh (Elsevier, 2018)This paper presents an experimental investigation on the durability properties and carbon dioxide (CO2) emissions of concrete developed using waste products. The concrete comprised of recycled concrete aggregate (RA) as a ... -
Basics of light transmitting concrete
Bashbash, Basma F; Hajrus, Roaa M; Wafi, Doaa F; Alqedra, Mamoun (2013)Energy saving and nice view are two key issues for infrastructure. In this paper, the development of a light transmitting concrete using plastic optical fiber (POF) is discussed and producing a new alternatives to entrench ... -
Behavior of Normal and High Strength Reinforced Concrete Structures under Blast Loading.
Alqedra, Mamoun; Arafa, Mohammed; Shaheen, Mahmod (Lupine Publishers, 2018)Explosions near buildings can cause catastrophic damages and can cause injuries and loss of life to the occupants of these buildings. Experiments on explosions can be very expensive, dangerous and time consuming compared ... -
Concrete breakout strength of single anchors in tension using neural networks
Ashour, Ashraf; Alqedra, Mamoun (Elsevier, 2005)A feed forward neural network model for evaluating the concrete breakout strength of single cast-in and post-installed mechanical anchors in tension is presented. The nodes of the neural network input layer represent the ... -
Design Optimization of Semi-Rigidly Connected Steel Frames Using Harmony Search Algorithm
Alqedra, Mamoun; Arafa, Mohamed; Khalifa, Ashraf (الجامعة الإسلامية - غزة, 2015)In this paper, a design optimization algorithm is presented for non-linear steel frames with semi-rigid beamcolumnconnections using harmony search algorithm. The design algorithm obtains the minimum steel weight by selecting ... -
Early stage cost estimation of buildings construction projects using artificial neural networks
Arafa, Mohammed; Alqedra, Mamoun (2011)A ISTRA ("|" Early stage cost estimate plays a significant role in any initial construction project decisions, despite the project scope has not yet been finalized and still very limited information regarding the detailed ... -
Effect of aggressive chemicals on durability and microstructure properties of concrete containing crushed new concrete aggregate and non-traditional supplementary cementitious …
Alnahhal, Mohammed Fouad; Alengaram, Ubagaram Johnson; Jumaat, Mohd Zamin; Alsubari, Belal; Alqedra, Mamoun; Mo, Kim Hung (Elsevier, 2018)The increasing awareness and usage of traditional supplementary cementitious materials (SCMs) in concrete have pressured the construction industry to look for alternatives to overcome the concerns over their plentiful ... -
Effect of forta-ferro fibers on fresh and mechanical properties of ultra high performance self compacting concrete
Arafa, Mariam; Arafa, Mohammed; Alqedra, Mamoun; Almassri, HG (2013)This research presents an experimental study of the effect of polypropylene fiber on Ultra High Performance Self Compacting Concrete (UHPSCC). Local available materials and inclusion of polypropylene fiber with different ... -
Evaluation of industrial by-products as sustainable pozzolanic materials in recycled aggregate concrete
Alnahhal, Mohammed Fouad; Alengaram, Ubagaram Johnson; Jumaat, Mohd Zamin; Alqedra, Mamoun; Mo, Kim Hung; Sumesh, Mathialagan (Multidisciplinary Digital Publishing Institute, 2017)The utilization of traditional supplementary cementitious materials (SCMs) has become more intense in the concrete industry due to their better long-term properties. This research evaluates the fresh and hardened properties ... -
Influence of Internal Curing on the Mechanical Properties of Normal Strength Concrete
Alqedra, Mamoun (The Islamic University of Gaza, 2018)The current study investigated the influence of internal curing on the mechanical properties of normal concrete produced at the Islamic University of Gaza (IUG) laboratories. Due to the high aborption capacity of the local ... -
Influence of low and high organic wastewater sludge on physical and mechanical properties of concrete mixes
Alqedra, Mamoun; Arafa, Mariam; Arafa, Mohammed; Mattar, M (2011)The present study is aimed at obtaining the influence of low and high organic wastewater sludge on physical mechanical properties of concrete mixes. A laboratory-testing program was carried out on concrete mixes having ... -
Influence of Several Nano Minerals on The Mechanical Properties of Fresh and hardened Concrete
Alqedra, Mamoun; Dabbour, Bassam; Arafa, Mohammed (2014)The current study aims at obtaining the influence of adding several nano-minerals on the mechanical properties of fresh and hardened concrete. Four types of Nano minerals were investigated in this work; namely: Brown Iron ... -
Investigate the Mechanical and Durability Properties of Cement Mortars being Exposed to Ammonium Nitrate Solutions
Shubair, Tamer; Arafa, Mohammed; Alqedra, Mamoun (Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 2016)The main purpose of this research is to investigate the effect of aggressive ammonium nitrate on mechanical and durability properties of cement mortar. The mortar specimens were immersed in ammonium n... itrate solutions ... -
Investigating the Effect of Sulfate Attack on Compressive Strength of Recycled Aggregate Concrete
Tayeh, Bassam A.; Hanoona, Hesham; Alqedra, Mamoun; Arafa, Mohamed; Shihada, Samir (الجامعة الإسلامية - غزة, 2017)This research aimed at studying the effect of sulfate attack on the compressive concrete strength with various percentages of recycled aggregate replacements (0%, 30%, 60% and 100%). Water cement ratio (0.42) are used, ... -
Mathematical modelling of the effects of base movements on steel portal structures
Alqedra, Mamoun (2000) -
Neural network models for predicting shear strength of reinforced normal and high strength concrete deep beams
Arafa, Mohammed; Alqedra, Mamoun; An-Najjar, Haytham (2011)The feed forward back propagation Artificial Neural Networks (ANN) was applied to develop two models for predicting the ultimate shear strength of reinforced concrete deep beams for Normal Strength Concrete (NSC) and High ... -
Optimum cost of prestressed and reinforced concrete beams using genetic algorithms
Alqedra, Mamoun; Arafa, Mohammed; Ismail, Mohammed (2011)This study aims at obtaining the cost of Prestressed Concrete (PC) beams and Reinforced Concrete (RC) beams. These beams are designed according to the requirements of the ACI 318-05 code. The objective function comprised ... -
Prediction of shear capacity of single anchors located near a concrete edge using neural networks
Alqedra, Mamoun; Ashour, Asraf (Pergamon, 2005)A feed forward back-propagation neural network model for predicting the shear capacity of anchor bolts located near a concrete edge is proposed. In the developed neural network, the neurons of the input layer represent the ...