Muthanna Journal of Engineering and Technology

Volume (13), Issue (2), Year (30 June 2025), Pages (45-57)

DOI:10.52113/3/eng/mjet/2025-13-02-/45-57

Research Article By:

Raghad Adel Fahad

Corresponding author E-mail:raghadadel83@gmail.com

ABSTRACT

Clarifying the behavior of the soil near the bored pile foundation tips through   estimating the boundary of the influence has a great benefit theoretically and practically in the accurate design of pile foundations. This research presents an advanced geotechnical analysis of the piles in Nasiriyah soil applied to the foundation of the Al-Iskan Interchange project. The study employed finite element analysis, utilizing the Plaxis3d Foundation software to systematically investigate the impact of variations in internal friction angles and pile diameters on soil deformations. Through a parametric study, the research sheds light on the intricate relationship between these key parameters and the behavior of the soil. The findings reveal compelling insights: deformations exhibit a discernible pattern in response to internal friction angle and pile diameter alterations. Specifically, deformations demonstrate a diminishing trend with an increasing internal friction angle, while a contrasting escalation is observed with larger pile diameters. This nuanced understanding highlights the importance of selecting the depth to which the pile is driven. The depth refers to the soil with optimal values for internal friction angles and pile diameters in engineering projects, with direct implications for enhancing stability and minimizing deformation.

Keywords:

Geotechnical Analysis, Finite Element Analysis, Plaxis3dFoundation Software, Internal Friction Angle, Pile Diameter.

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Integrating Internet of Things (IOT) with responsive architecture: a framework for future buildings

Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (74-92)

DOI:10.52113/3/eng/mjet/2025-13-01-/74-92

Research Article By:

Osamah A. Al-Tameemi

Corresponding author E-mail: osamah.al-tameemi@coeng.uobaghdad.edu.iq

ABSTRACT

The research here investigates how Internet of Things (IoT) technologies can be integrated into responsive architecture in order to create sustainable and energy-efficient smart buildings. The main issue being solved is that there is no clearly defined framework for integrating IoT in responsive architectural design that makes it challenging to attain real-time adaptability, reduce energy consumption, and enhance the user experience. The research aims to evaluate existing IoT implementations in architecture by analyzing real-world case studies and developing a conceptual framework that articulates IoT’s impact on building sustainability and efficiency. In an attempt to realize this goal, the research explores the following hypotheses: IoT integration greatly lowers a building’s energy use. IoT-enabled buildings are more flexible and more satisfactory to users than conventional architectural buildings. An IoT-responsive architecture framework that is well designed can be employed as a scalable model for future smart city infrastructure. Through IoT-enabled building case studies, it has been found that IoT deployment results in a 30% reduction in energy consumption and substantial improvement in occupant comfort and operational efficiency. Keeping these findings in perspective, the research proposes a holistic framework with specific guidance to architects and urban planners to design more adaptive, efficient, and user-friendly buildings.

Keywords: Internet of Things (IoT), Responsive Architecture, Smart Buildings, Energy Efficiency, Sustainability, Adaptive Environments.

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DEVELOPING A CONCEPTUAL FRAMEWORK FOR PRELIMINARY SUSTAINABILITY ASSESSMENT OF EMERGING CONSTRUCTION MATERIALS

Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (66-73)

DOI:10.52113/3/eng/mjet/2025-13-01-/66-73

Research Article By:

Zainab Alridha

Corresponding author E-mail: Zainabalridha@mu.edu.iq

ABSTRACT

The construction industry is undergoing a profound transformation driven by concerns about sustainability, particularly the environmental impact of the materials used. Researchers are seeking to address such adverse impacts by introducing new sustainable construction materials; however, such emerging materials often lack clear criteria by which to verify claims about their sustainability. Traditional methods, including life cycle assessment (LCA), are comprehensive but present challenges, particularly in the early stages of development, in terms of information availability, complexity, and high resource requirements. In an attempt to mitigate these gaps, this paper proposes a simple framework for preliminary sustainability assessment of emerging construction materials, providing an accessible and easy-to-use tool for assessing sustainability claims. The three dimensions of this framework, environmental responsibility, economic viability, and social equity, provide a balanced view and identify key areas for assessment, including carbon footprint, embodied energy, resource efficiency, pollution management, life cycle cost, recyclability, market competitiveness, health and safety concerns, jobs, and societal benefits. By proposing a simplified and comprehensive framework that can be applied during the early stage of materials development where the limited data obstructs the assessment process, the proposed framework assists researchers in evaluating the sustainability of their newly developed materials and help in reducing uncertainties.

Keywords:  sustainable construction materials, sustainable construction, sustainability assessment.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (51-65)

DOI:10.52113/3/eng/mjet/2025-13-01-/51-65

Research Article By:

Zain AL-abdeen Injers Tomma and Samoel Mahdi Saleh

Corresponding author E-mail: zainalmaliky451@gmail.com

ABSTRACT

A series of experimental tests were carried out to investigate the behavior of sustainable self-compacting concrete-filled double skin steel tubular (HSCFDST) columns. Nine column specimens were tested in the present study, taking into account the effects of the inner shape of the column cross section (circular or square), the hollowness ratio, and the recycled aggregate replacement ratio. For comparison, three of the tested specimens were filled with normal recycled aggregate concrete. It was observed that the maximum axial strength of CFDST columns increases with the increase in void fraction for round inner tubes and decreases with the increase in void fraction for square inner tubes. Also, it was found that for square column specimens, the ultimate axial strength of HSCFDST columns was inversely proportional to their hollowness and slenderness ratios. CFDST column specimens filled with recycled aggregate concrete compared with those filled with normal aggregate concrete decreased stiffness and ultimate axial strength but gave unexpected results for the ultimate axial strength; therefore, the suitable choice for the section properties of the inner steel tube is required. The bearing capacity of CFDST square columns with concrete aggregate (30% and 60%) decreases by 5% and 10%, respectively. Increasing the volume of recycled concrete led to a decrease in maximum load capacity, with a 30% volume resulting in a 5%-10% reduction and 60% volume further reducing capacity by 10%-14.6%. The experimental results and analytical approach that were developed by other researchers showed good agreement.

Keywords: CFDST, Sustainable concrete, self-compacting concrete, Composite column, Hollowness ratio, recycled aggregate.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (38-50)

DOI:10.52113/3/eng/mjet/2025-13-01-/38-50

Research Article By:

Hasanain Atiyah, Rafea Dakhil Hussein and Hayder I. Mohammed

Corresponding author E-mail: hasanainatiyah@mu.edu.iq

ABSTRACT

This paper presents a thorough examination of the thermal deterioration of polymethyl methacrylate (PMMA) influenced by fiber and CO₂ lasers, investigating their unique metallurgical and thermal effects. The elevated energy density of fiber lasers results in quick and highly targeted heating, enabling speedy material removal and ablation. Nonetheless, this quick heating causes considerable surface roughness, microfractures, and extensive molecular degradation, undermining the material’s structural integrity. In contrast, CO₂ lasers, distinguished by their longer wavelength, provide wider and more uniform heat distribution throughout the PMMA surface. This yields a more refined surface finish with enhanced degradation control, however at a reduced processing speed. The review examines the unique thermal distribution patterns generated by each laser type, investigating the development of heat-affected zones (HAZs) and the particular degradation mechanisms occurring inside these zones. The study examines the metallurgical alterations caused in the PMMA structure, focusing on aspects such as chain scission, depolymerization, and the generation of volatile byproducts. Experimental results demonstrate that fiber lasers are optimal for high-velocity material removal procedures where surface finish is not paramount, but CO₂ lasers are favored for applications requiring superior surface precision and less heat damage. These discoveries include substantial industrial ramifications for several industries, including automotive, optical, and medical device manufacture. The analysis closes by examining ways for optimizing laser parameters, including power, pulse length, and scanning speed, to attain a balance among processing efficiency, material integrity, and desired product quality in PMMA manufacturing.

Keywords: Polymethyl methacrylate (PMMA), thermal degradation, fiber laser, CO₂ laser, metallurgical analysis, laser-induced degradation, heat-affected zone (HAZ), material processing, surface quality.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (34-37)

DOI:10.52113/3/eng/mjet/2025-13-01-/34-37

Research Article By:

Tarteel Abdullah Jabbar

Corresponding author E-mail: tarteel.abulla.cieng@mu.edu.iq

ABSTRACT

Deep foundations are often constructed using pile-driving techniques, which are inefficient in shallow foundation areas. However, this method creates ground vibrations that may affect surrounding structures, notably weaker ones, as they can develop fractures, experience irregular settlement, deform, or suffer issues related to the longevity of the building. This study comprehensively analyses vibration energy, its possible structural effects, and many mitigation options. The study integrates real measurement data, simulations, and other illustrative examples to make recommendations to reduce construction vibrations effectively.

Keywords: Vibration mitigation, structural damage, fracture settlement, bounding techniques, shallow structures, vibration recommendations, vibrations moderation, piles driven.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (27-33)

DOI:10.52113/3/eng/mjet/2025-13-01-/27-33

Research Article By:

Enas Sami Sabbar and Haider Al-Jelawy

Corresponding author E-mail: eng.post.civil8@qu.edu.iq

ABSTRACT

One of the most important structures in modern civil engineering is composite beams, which refer to beams that consist of different materials whereby the most common are concrete slabs and steel beams. This paper aims at presenting the state of research on the behavior and performance of composite beams emphasis has been put on the Shear connections. Some of the commonly used shear connectors include headed steel studs, channel connectors, and angle connectors, which improve the load bearing of steel and concrete structures. Literature review shows that important parameters such as connection type, concrete strength, and connection layout have been found to affect considerably the ultimate moment, the fatigue behavior, and the failure mode of the connection. In particular, it is important to mention that new materials, such as ultra-high performance concrete (UHPC), and connector designs offer the potential for increasing loads and durability of connections. It is within this context that this review underlines the need to identify and manage design parameters to guarantee the safe and efficient use of composites in beam structures.

Keywords: Composite beam; Steel beam; Shear connection; UHPC; Failure mode

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (21-26)

DOI:10.52113/3/eng/mjet/2025-13-01/21-26

Research Article By:

Tarteel Abdullah Jabbar

Corresponding author E-mail: tarteel.abulla.cieng@mu.edu.iq

ABSTRACT

The flexural performance of FRP-strengthened beams has become a critical focus in concrete structural engineering, particularly for enhancing strength, ductility, and durability. This paper provides a critical review of recent advancements in the use of FRP materials for flexural strengthening of concrete beams, emphasizing experimental findings, theoretical models, and practical applications. Key parameters affecting flexural performance—such as FRP type (carbon, glass, aramid), bonding techniques, and failure mechanisms—are thoroughly examined. While FRP materials offer advantages like a high modulus-to-weight ratio and corrosion resistance, challenges such as delamination, environmental durability, and cost remain significant. Additionally, emerging trends in reinforced or hybrid FRP systems are discussed. This review aims to offer researchers, engineers, and professionals comprehensive insights to develop effective and innovative solutions for concrete beam strengthening.

Keywords: Failure, Reinforced concrete beams, Flexural behaviour, Fibre reinforced polymer.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (15-20)

DOI:10.52113/3/eng/mjet/2025-13-01/15-20

Research Article By:

Nuha Abdulsada AL-Mayyahi

Corresponding author E-mail: nuhaabdulsada@gmail.com

ABSTRACT

Deep beams are one of the widest used members in construction due to their high rigidity and significant bending resistance. It used usually at high rise buildings, bridges, deck slabs and foundations. The beams may rest on soil in many cases like strap footing. Timoshenko beam theory and Fourier series were used for derivatizing the behavior of deep beams which rest on soil grade. Many parameters were investigated in the current study like modulus of subgrade reaction, beams dimensions and loading type. It was concluded that, the rigidity of deep beam is high in amounts that cancelling the effect of modulus of subgrade reaction. The beam width increases the bearing pressure of the soil and working on enhancing the stability of the beam and keeps it rest well on the soil so that increasing the width of beam led to minimizing sinking the beam into the soil so that reducing the deflection. Furthermore, increasing the height of the deep beam leads to minimizing the deflection of beam due to rising the shear resistance capacity of the beam which depends in the first degree on the beam thickness.

Keywords: Deep beams; modulus of subgrade reaction; Winkler model; concentrated and distributed loads.

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Muthanna Journal of Engineering and Technology

Volume (13), Issue (1), Year (30 June 2025), Pages (01-09)

DOI:10.52113/3/eng/mjet/2025-13-01-/01-09

Research Article By:

Abaas J. Ismaeel, Ahmed A. Dakheel and Basim M. Al-Zaidi

Corresponding author E-mail: msc_ahmed@utq.edu.iq

ABSTRACT

Analysis of rainfall data is important in the design and planning of water projects in cities. Therefore, in this research, rainfall data recorded at the Nasiriyah station located in the center of Thi-Qar Governorate, southern Iraq, was used for 80 years for the period (1940-2020) to determine the best probability distribution fits this data. All tests and statistical analyzes were carried out using the (HYFRAN-PLUS version 1.2) software, and the method of maximum likelihood was applied to obtain the coefficients of theoretical distributions. Eight distributions were tested: GEV (Generalized Extreme Value), Gumbel, Weibull, Normal, Lognormal, Gamma, Pearson type 3, and Log-Pearson type 3, and adequacy test was conducted by (Chi-Square) test for these distributions, the results showed the GEV, Lognormal, Pearson type 3, and Log-Pearson type 3 distributions are suitable, for describing extreme monthly rainfall in this study area.

Keywords: Best fitting; Extremes monthly rainfall; Nasiriyah city; Probability analysis; Weibull distribution.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (136-145)

DOI:10.52113/3/eng/mjet/2024-12-02-/136-145

Research Article By:

Salahuddin Qusay Imran and Abdulamir Atalla Karim

Corresponding author E-mail: salahaldinqusay@gmail.com

ABSTRACT

Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (127-135)

DOI:10.52113/3/eng/mjet/2024-12-02/127-135

Research Article By:

Ali salih and H. A. Ibrahim

Corresponding author E-mail: hanan.ahmed.ibrahim@mu.edu.iq

ABSTRACT

Wastewater contains multiple pollutants in different forms that may be biodegradable or non-degradable. Therefore, it was necessary to find different methods and processes to remove these pollutants, as Fenton oxidation (FO) processes were commonly used for commercial and residential operations. In a glass batch reactor, a Fenton oxidation process was performed for the purpose of purifying the produced water (PW) and removing the contaminated lead metal. Depending on the batch system used, the effect of operational process variables such as pH (3-10), oxidation time (20=120) min, concentration of hydrogen peroxide (25-100) ppm and ferrous sulphate (5-25) ppm was tested. Through the results obtained, it was demonstrated that the possibility of applying Fenton oxidation technology in removing lead metal contaminants from the produced water (PW) was successful. Lead elimination of 94.18% was achieved when using the Fenton oxidation technique, where a time of 120 minutes was taken at a pH of 6.5, 62.5 and 25 ppm for hydrogen and ferrous sulphate concentrations, respectively.

Keywords: Produced water, Heavy Metal, Wastewater treatment, Fenton Oxidation processes.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (121-126)

DOI:10.52113/3/eng/mjet/2024-12-02/121-126

Research Article By:

Atheer Muhammed Ali

Corresponding author E-mail: atheer.muhammed@mu.edu.iq

ABSTRACT

Warm mix asphalt (WMA) binders with varying amounts of Sasobit additive are made using two kinds of asphalt binders (PEN80-100 and 60-70). The Sasobit content was from 0.4% to 2.0%, with a range of 0.4 by mass of asphalt binder. Penetration, Rotational Viscosity (RV), and Dynamic Shear Rheometer (DSR) tests were performed. In addition, the Rolling Thin Film Oven (RTFO) and the Pressure Aging Vessel (PAV) tests were carried out to simulate the short-term and long-term aging of asphalt binder, respectively. Furthermore, for both asphalt binders, the complex shear modulus (G*) was determined in order to calculate the rutting factor (G*/Sinδ) and fatigue factor (G*. Sinδ). The results obtained reveal that, the asphalt performs better at higher temperatures and worse at lower ones. Because excessive amounts of Sasobit will negatively affect the asphalt binder, it should be added to the asphalt binder at a mass percentage of no more than 2%.

Keywords: Asphalt binders, Dynamic Shear Rheometer, Fatigue factor, Rolling Thin Film Oven, Warm mix asphalt.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (100-120)

DOI:10.52113/3/eng/mjet/2024-12-02/100-120

Research Article By:

Zeina Abdulhaq Hammoodi Al-jarah and Asmaa Hassan Al-Dabbagh

Corresponding author E-mail: ziena.22enp52@student.uomosul

ABSTRACT

Universities are experiencing a state of visual chaos that affects the campus environment, due to the diversity of design practices and the varying morphological and visual characteristics of their facades. This arises from the continuous need for universities to change in order to accommodate future developments. Achieving compatibility among the facades creates an integrated and cohesive environment. The study aims to identify the variables that designers focus on to achieve compatibility in the facades at the level of the aggregation (a part of the university’s master plan that includes at least three buildings and the space they contain) and to rank these characteristics according to their priority. The study proposes a theoretical framework that includes variables such as: finishing characteristics, relational characteristics, geometric characteristics, along with their secondary properties. To achieve this goal, four aggregations from the University of Mosul with cumulative construction were selected. The study employed quantitative measurement methods to assess the research variables, where the dimensions and areas of the facades were measured within the geometric characteristics variable using AutoCAD software, and the proportion and diversity were evaluated. Fractal3 software was also used to measure fractal symmetry within the relational characteristics variable. The research concluded that the facade characteristics encompass two levels of variables: some of which holistic and detailed. It was found that in aggregations where designers focus on specific facade detailed variables, the holistic variables are and less concentrated by the designers, and vice versa. Additionally, there are cases where designers are able to achieve of balance between focusing on both levels (detailed and. holistic), which is influenced by the area of the aggregation and the functional requirements of its buildings.

Keywords: Compatibility, Termination characteristics, Relationship characteristics, Geometric properties, Campus.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (90-99)

DOI:10.52113/3/eng/mjet/2024-12-02/90-99

Research Article By:

Jaafar Salman Abdulsada, Enaam kareem jawad and Rami Alawi Rahim

Corresponding author E-mail: jaafars.abdulsada@gmail.com, enamkareem@gmail.com

ABSTRACT

In this research, the large deflection of a cantilever tested steel beam of linear elastic material under the action of an external vertical concentrated force at the free end was numerically investigated. The definition of large deflection behavior indicates the inherent nonlinearity found in the response analysis in these beam systems. The analysis pertains to the domain of geometric nonlinearity, often expressing the equilibrium equation in a deformed structure. Numerous authors have implemented various numerical methodologies to address these issues. This paper investigates Rang-kuta numerical techniques for the numerical simulation of the problem. To achieve this purpose, a cantilever beam of length 1 meter and an isotropic thin steel plate with a rectangular cross-section were used. Assuming the beam material is isotropic, with a modulus of elasticity E = 200 GPa and a Poisson’s ratio equal zero. The performance of the tested beam was assessed considering deflection and deflection angle. A parametric study is also included to investigate the effect of cross section dimensions (width x height) of steel plate on the bending and the deflection value of tested beams.  The assessments indicate that the proposed method can be widely applied to measure large deflections in thin steel plate materials under concentered load at the free end of cantilever beams.

Keywords: Cantilever beams; Large deflection; Thin material; Steel plate; Analytical solution; Bending.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (80-89)

DOI:10.52113/3/eng/mjet/2024-12-02/80-89

Research Article By:

Ola Mazen Makki, Enaam kareem jawad and Jaafar Salman Abdulsada

Corresponding author E-mail: ola.mazen@qu.edu.iq

ABSTRACT

Concrete slabs are the most construction members which is in touch with soil. The applied load on concrete slab causes a deformation in slab and soil which making a relative movement between the two medias and that’s what named by soil-structure interaction. Improving concrete slab strength allows the designer to get the required strength without increasing slab thickness and necessary for safety purposes when the slab exposed to unexpected loads.  The study investigated this interaction by casting three concrete slabs and applied a static load on them to discuss their behavior and the soil response. Three plain square slabs of 600 mm sides and 40 mm thickness were casted and tested to investigate the concrete enhancement. The first slab is conventional while the second was of 0.5% percentage of steel fiber and the third specimen was of 1% of steel fiber. It was concluded that, the center of slab deflects downward, while the corners go upward then settles. Adding Steel fiber enhance the concrete compressive strength. The development in slabs bearing capacity were enhanced by 44.7% and 67.03% after adding 0.5% and 1% of fibers respectively.

Keywords: Slab, Foundation, Soil, Soil-Structure interaction, Steel Fiber.

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Muthanna Journal of Engineering and Technology

Volume (12), Issue (2), Year (30 December 2024), Pages (73-79)

DOI:10.52113/3/eng/mjet/2024-12-02/73-79

Research Article By:

Ahmed H. Shubber and Basim Jabbar Abbas

Corresponding author E-mail: ahmed.h.abbas@mu.edu.iq

ABSTRACT

Seismic isolation achieves its purpose by making the structure functionally independent from the ground through seismic isolators, which are devices that mitigate the horizontal earthquake motion that can be transmitted to a building. The adoption of seismic isolation is not only limited to new structures but also included in many existing structures— major earthquakes demonstrated the effectiveness of these systems, so such is adopted. Most past research on seismic isolation techniques have been confined to regional studies; this paper proposes a historical review on evolution of isolations methods chronologically. Classification of seismic isolation techniques is done based on their mechanism with brief descriptions of their advantages and disadvantages and any recent innovations or alternative methods widely used under this category noted at the end of each classification provided within the study. Earthquakes are considered one of the most dangerous natural conditions, so they claim thousands of lives and property annually to reduce these damages to the facility, several studies and research have been conducted on the possibility of reducing the effects of seismic waves either by absorbing that energy or dissipating it using different techniques to isolate the foundations or to isolate the entire building, but the problem of these techniques needs a special work environment with a high material cost. The research aims to study the different methods of seismic isolation or damping for the design of foundations separately or multi-storey buildings as a whole with retarded waves according to the nature and strength of the seismic intensity as well as the materials available in the country and to find the best way to reduce the vibrations resulting from seismic movement.

Keywords: Seismic isolation, Seismic load, Damping, Isolation for footing, Earthquakes.

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