Table of content

Journal of Engineering and Sustainable Development

مجلة الهندسة والتنمية المستدامة

ISSN: 25200917
Publisher: Al-Mustansyriah University
Faculty: Engineering
Language: Arabic and English

This journal is Open Access

About

Journal of Engineering and Sustainable Development
College of Engineering /Mustansiriyah University
*********************************

• About the journal
The Journal of Engineering and Sustainable Development is a peer reviewed open access scientific Iraqi journal issued by the College of Engineering/ Mustansiriyah University, under the regulations and standards of the Ministry of Higher Education and Scientific Research in Iraq. In the meantime, the journal commits itself to the regulations of the Committee On Publication Ethics (COPE).


The Journal of Engineering and Sustainable Development is an open access journal that all contents are free of charge. Users are allowed to read, download, or share the full texts of the articles in this journal without prior permission of the publisher or the author(s). A DOI is guaranteed by no means to change, so it can be used as a permanent link to any electronic article. Our journal DOI prefix account is 10.31272.

The journal welcomes submissions in the following topics:

Structural Engineering

Geotechnical Engineering

Engineering Management

Materials Engineering

Transportation Engineering

Dam and Water Resources Engineering

Architectural Engineering and Urban Design

Energy and Power System

Electronics, Control, Signals and Systems

Computer and Software Engineering

Communication Engineering

Renewable Energy Systems

Environmental Engineering

General Engineering

The vision for the future is to make the journal abstracted and indexed by the prominent databases and internationally cited, read and downloaded by the scholars. The mission is to contribute to the advances in the engineering fields and sustainable development. The journal aims at revolutionizing the practice in industry by promoting cutting-edge and effective research.

The Journal of Engineering and Sustainable Development is published bimonthly, and the issues appearing on the beginning of each other month.

The corresponding author must pay fees of 100000 Iraqi dinars for the professor academic title, 75000 Iraqi dinars for assistant professor or less title, and 30000 Iraqi dinars for graduate (or undergraduate) students where the student is the first author. For international researchers, the submission fees are 125 USD.

Loading...
Contact info

Phone Number:07717944560
E-mail:editor@jeasd.org
ali.alghalib@uomustansiriyah.edu.iq

Table of content: 2019 volume:23 issue:1

Article
دينامية عمارة المساجد المعاصرة

Loading...
Loading...
Abstract

: يعد الفكر الاسلامي احد العوامل الرئيسة التي اسهمت في صياغة العمارة الاسلامية عموماً وعمارة المساجد خصوصاً. إذ فُسر الالتزام بقوالب شكلية ثابتة فيما يخص مكونات هذه العمائر بارتباطه بالعقيدة والفكر الاسلامي بما يجعلها بعيدة عن ماهية هذا الفكر التي تتمثل في ديناميته ومرونته التي تجعله صالحاً لكل زمان ومكان.كان ذلك مدعاة الى التساؤل عن ماهية الدينامية ومستوياتها وخواصها في الفكر الاسلامي . وقد عزز مايشهده الواقع المعاصر من بروز للعديد من التوجهات الجديدة في تصميم عمارة المساجد من التساؤل عن امكانية تمثيل هذه النماذج لعمارة اسلامية تعبر عن خواص الفكر الاسلامي ومن اهم هذه الخواص ديناميته. بهذا فان مجال البحث سيتركز في تحديد معنى الدينامية بشكل عام وخواصه في الفكر والعمارة الاسلامية خصوصاً وعلاقته بالمساجد المعاصرة. توصل البحث وعبر تحديد مفهوم الدينامية وخواصه في الفكر الاسلامي وانعكاساته في العمارة الاسلامية الى ان عمارة المساجد المعاصرة تمثل استمرارية وانعكاساً لدينامية الفكر الاسلامي بشكل عام ويمكن عدّها نموذجاً جديداً للعمارة الاسلامية يضمن استمرارية الفكر بأسلوب جديد ,وقد برزت الدينامية ضمن المستويات التخطيطية والشكلية لعمارة المساجد العالمية ,بينما تمثلت بالمستويات الشكلية اكثر من التخطيطية ضمن العمارة العربية.


Article
الإنقطاع الحضري لتهويد القدس

Loading...
Loading...
Abstract

إن المدينة نتاج حضاري يعبر عن الفكر السائد الذي يخضع للتغيرات الطارئة عليه، فهي نظام حضري تتعرض باستمرار إلى تغييرات بفعل عوامل خارجية وداخلية ، فتظهر من خلال مظاهر النمو الحضري لعناصر النظام الحضري وعلاقاتها مع بعضها، فعانت المدينة التقليدية من هذا الوضع، وأنتجت حالة التطابق مع الآخر إنقطاعاً بسبب مفاهيم فكرية غيرت النسيج الحضري الموجود. ونظرًا لأهمية القدس في الصراع العربي الإسرائيلي، عملت دولة إسرائيل بسرعة وفاعلية من أجل طمس ونفي الماضي العربي والإسلامي لمدينة القدس ضمن مخططات ستراتيجية (سياسات تهويد) على المستوى الإقليمي والقدس الكبرى ومدينة القدس القديمة، من خلال تأكيد دور التطابق مع الآخر لتحقيق الإنقطاع المادي بنوعه المدمر في التصميم الحضري للمدينة لتلعب من خلال هذا الحدث الكارثي على تغيير الخصائص التركيبية للنسيج، ولم يضع العرب أي مخططات لمواجهة هذا الحدث الكارثي حيث كانت اغلب الدراسات العربية تتعامل مع المشكلة من وجهة نظر تاريخية وصفية إتسمت بالإنتقائية. ويهدف البحث إلى تعقب التغيير وإدراكه وتحقيق الإطمئنان من مخاوف الإنقطاع الحضري للقدس لكونها نظاماً ديناميكياً حضرياً على الرغم من تأثرها بالمؤثرات الداخلية والخارجية للبيئة المحيطة بها بفعل سياسات التهويد، ستسعى للتوسّع والانتشار والامتداد والاتصال والارتباط الخارجي طلباً لمزيد من المعلومات مقابل ميل ونزعة داخلية للدفاع والتراص وإعادة الهيكلة والتنظيم الذاتي حفاظاً على طاقاتها، بفعل الأنساق أو الأنماط الكامنة لنقاط الجذب في نظامها الداخلي توصلها لحالة من الاتزان والتنظيم الذاتي، حيث إفترض البحث أن دور المسجد الأقصى كعنصر جاذب يعمل على تنظيم البنية الحضرية للقدس ذاتياً ولاسيما المحورية الحركية والبصرية بإتجاه المسجد الأقصى وتحقيق الهوية الإسلامية العربية مما يثبت نسبها العربي على الرغم من ستراتيجيات التهويد. وذلك لمعالجة المشكلة البحثية المتمثلة بالحدث الكارثي لتغيير الخصائص التركيبية للنسيج الحضري لمدينة القدس بفعل سياسات التهويد لطمس الهوية العربية الإسلامية.


Article
الانتشار الحضري سمة المدن العربية مدينة الرياض وبغداد انموذجاً

Loading...
Loading...
Abstract

منذ نشأة المدينة وازدياد عدد السكان تطلب توفير المكان الملائم لتوقيع استعمالات الأرض المختلفة، اذ بدأت المدن بالنمو الحضري والتوسع بصورة مستمرة وانتشرت بشكل افقي دوماً على مساحات كبيرة من الأراضي وخصوصاً الزراعية. تميزت معظم المدن العربية بسمة الانتشار الحضري لاستيعاب الزيادة السكانية في المدينة وذلك لملائمة هذا النمط مع الثقافة الاجتماعية للمجتمع العربي وقلة تقبله للتوسع بأنماط توسع أخرى وخصوصاً التوسع العمودي. وللانتشار الحضري الكثير من المشكلات الحضرية اهمها التجاوز على الأراضي الزراعية والبساتين والمناطق الايكولوجية، فضلاً عن زيادة اطوال الطرق والبنى الارتكازية وهذا يرافقه ضغطاً على الموارد الطبيعية واستهلاكها وزيادة التلوث، كذلك تبعثر وعدم ترابط النسيج الحضري للمدينة وتشويه للهوية العمرانية والمعمارية. تكمن مشكلة البحث باعتبار الانتشار الحضري من اهم مشاكل المدن، وتعاني معظم المدن العربية من الانتشار الحضري عند النمو والتوسع الحضري وبالتالي تعاني من مشاكل حضرية منها التجاوز على الأراضي الخضراء وزيادة كلف البنى الارتكازية والتأثيرات السلبية على بيئة المدينة. أوضح البحث مراحل التطور الحضري لمدينة الرياض في السعودية، اذ بدأت كمدينة صغيرة متضامة لتتوسع بشكل مفرط باعتماد بديل الانتشار الحضري وبكثافة سكانية بين 20 – 40 نسمة / هكتار في كافة مراحل توسعها الحضري. اعدت لمدينة بغداد ستة مخططات أساسية صٌدقت عليها لتوجيه نمو وتوسع المدينة، فضلاً عن 3 دراسات لم تنفذ مقترحاتها لحد الان الجهات المختصة. اعتمدت جميع المخططات على نمط الانتشار الحضري والتوسع افقياً لاستيعاب الزيادة السكانية لمدينة، لكن تميزت اغلب المخططات الأساسية بعدم التنبؤ بعدد السكان المستقبلي للمدينة بدقة لتتمكن المخططات من استيعاب هذه الزيادة. يستنتج البحث تحول مدينة بغداد من مدينة بنمط متضام في بداية قرن العشرين الى نمط الانتشار الحضري وتوسعها بشكل مفرط، اذ بلغت الكثافة السكانية حوالي 200 شخص / هكتار في بداية القرن العشرين لتصل الى 66 شخص / هكتار عام 2006 وهذا يوضح حجم الانتشار الحضري لمدينة بغداد خلال 100 سنة.


Article
MONITORING OF HIGH RISE BUILDING USING VERY LONG FOCAL LENGTH OF CAMERA LENS AND THREE DIMENSIONS GOOGLE IMAGES

Loading...
Loading...
Abstract

A new approach of monitoring of building tower of University of Baghdad has been implemented through the use of accurate cameras which include Sony camera )a65( with GPS and two zoom lenses (18-55mm &55-200mm) as well as MTO 1100mm 10.5 mirror lens mounted on Pentax K-x camera. The positions of damages were located on three dimensions (3D) Google images; therefore it has been dispensed with the use of original drawings which are often lost or missing.


Article
STRENGTHENING OF CONCRETE BEAMS WITH PRESTRESSED FRP REINFORCEMENTS

Authors: Suhaib Sabah Abdulhameed
Pages: 13-25
Loading...
Loading...
Abstract

Strengthening of reinforced concrete beams with prestressed Fiber Reinforced Polymer (FRP) sheets showed to be efficient in enhancing the serviceability of the strengthened concrete beams. Yu et al.'s develop a mechanical prestressing device to prestress FRP sheets to strengthen reinforced concrete members. Yu et al. s experimental results showed that this device overcome the shortcomings associated by using the previously developed prestressing devices. In this research program Yu et al.'s mechanical device was modified to increase the efficiency of it by using light weight material to reduce the additional weight on the strengthened beams caused by the prestressing device in addition, the end anchorage plates were installed vertically rather than horizontally to extend the prestressed FRP sheets to the end regions of the member where high shear stress occurred. This modification in the end anchorage regions is efficient to reduce the possibility of the premature debonding failure. A numerical analysis by using ANSYS (R14.5) computer program was used to simulate the prestressing device. Numerical results showed that using aluminum material is efficient to produce a prestressing mechanical device. The maximum stresses and deflection that generated in the pretressing device upon prestressing Carbon Fiber Reinforced Polymer (CFRP) sheet (51% of the ultimate tensile stress in the CFRP) to strengthen 22.5m concrete beam are 46MPa and 83mm respectively. A theoretical formula was derived based on geometric relations of the prestressing system and the deformed CFRP sheet. It was used to predict the prestressing level in the CFRP sheet. Theoretical results showed that the percentage difference between Yu et al.'s formula and the derived formula is about 1%. This value changes based on the prestressing level in CFRP sheet and the length of the strengthened beam. The theoretical prediction of prestressing level in the CFRP sheet agreed well with the experimental results.


Article
EXPERIMENTAL STUDY ON THE BEHAVIOR OF DIFFERENT TYPES OF STEEL FIBER REINFORCED CONCRETE MIX OF TWO WAY-SLABS SUBJECTED TO DIFFERENT HEAT TEMPERATURE

Authors: Omar Shamal Farhan
Pages: 26-42
Loading...
Loading...
Abstract

This research aims to study the influence of steel fibers on the behavior of eighteen reinforced concrete (RC) slabs under different temperatures. The main investigated parameters in this paper were concrete type i.e. Normal-Strength Concrete (NSC), High-Strength Concrete (HSC) and Light-Weight Concrete (LWC), the effect of various parameters such as; amount of steel fiber ratio (0% and 2%) on failure load, crack patterns, and load- deflection response, have been studied. In these slabs the amounts of reinforcements were kept constant. The study also includes the type's failure and effect of types of concrete when all specimens are exposed to several temperature levels (25Co, 400Co, 600Co). It showed that, there is a reduction of strength with the increase of temperature. The test results show that as the volume of the steel fibers increase the punching shear strength increased and the presence of fibers delay the appearance of the first crack in the slab and gave less deflection than the slab without fibers.


Article
EXPERIMENTAL STUDY OF SELF-COMPACTING REINFORCED CONTINUOUS DEEP BEAMS

Authors: Abdul_Qader Nihad Noori --- Adnan Falih Ali
Pages: 43-65
Loading...
Loading...
Abstract

Test results of twelve reinforced self-compacted concrete two-span deep beams casted by using self-compacting concrete are reported. The main variables studied were shear span-to-overall depth ratio (a/h), concrete strength (fʹc) and the amount of vertical shear reinforcement ratio (ρv). All specimens had the same dimensions and main flexural reinforcement. Tests pointed out that all beams failed in shear with diagonal splitting mode. It was found that shear span to overall depth ratio (a/h) effects the load carrying capacity of beams such that a decrease of 50 % in that ratio from 1 to 0.5, the cracking load (Pcr) and ultimate load (Pult) increase by average ratios of 29% and 25% respectively. The concrete compressive strength (fʹc) are also had a noticeable influence on the continuous deep beams behavior such that increasing (fʹc) to almost twice from (33.81 to 67.8) MPa led to an increase in the cracking load (Pcr) and ultimate load (Pult) by average ratios of 12.75% and 16.5% respectively. When (ρv) is increased by 80% from (0.25% to 0.45%) a better increase shear capacity of both NSCC & HSCC deep beam having (a/h) ratio of 1.0 (enhancement reached to18.56% and 23.1% respectively) as compared to the reference beams without shear reinforcement (ρv=0).S


Article
Experimental Study to Investigate the effect of Longitudinal and Transverse Openings on the Structural Behavior of High Strength Self Compacting Reinforced Concrete Beams

Loading...
Loading...
Abstract

Service runs considered as a major nerve of any building. Thus, beam with longitudinal and transverse opening (BLTO) was creative solution for the purpose of serve those runs with other benefits, especially when utilized high strength self-compacting concrete (HS-SCC). This study examined the behavior of eight reinforced concrete (RC) beams. These beams were involved into two groups. All beams had identical in dimensions, reinforcement, concrete type, and hole dimensions. The evaluation used to elect the optimum hollow core section, and position effect of web openings with fixed hollow core section. Due to recorded load capacity, a reduction was produced by hollow core position at mid and bottom section by about (2%-14%), respectively, with comparing by solid section. Therefore, the optimum hollow core section was when it locate in mid beam section which used to unify BLTO sections. BLTO types indicated different loading data according to web opening position. The decrement of opening provision was about (20.4%) by compared with hollow beam (without transverse opening) and about (22%) by compared with the solid beam. The optimum BLTO was when the web opening located in mid-shear zone, while the critical one recorded in web opening position in mid-span and near supports in same BLTO. The registered failure mode of all beams was contained two main types, suddenly flexural failure in compressive zone by concrete cover crushing and flexural-shear failure.


Article
CONDUCTIVITY BEHAVIOR FOR THE PERMEATE STREAM OF REVERSE OSMOSIS WATER IN THERMAL POWER STATION

Authors: Suha Anwer Ibrahim
Pages: 80-92
Loading...
Loading...
Abstract

The study deals with the conferences of the Reverse Osmosis membrane of water treatment unit in AL-Doura thermal power station in Baghdad. The study concerned the analysis of RO water by the most convenient analytical equipments. From May 2015 to May 2016 over one year samples quality of the RO water in AL-Doura thermal power plant was accomplished .The results show that the lowest conductivity average values in the 1st quarter at day and at night. The greatest conductivity average values in the 3rd quarter at day and at night. In general the operation of reverse osmosis unit in Al-Doura thermal power station are in compliance with the restriction specifications of manufactured company design manual but in some days in hot months are not in the range


Article
REMOVAL OF CHROME AND ZINC FROM INDUSTRIAL WASTEWATER USING ELECTRICAL PRECIPITATION AND BENTONITE CLAYS

Authors: Waleed Rasheed Abdullah
Pages: 93-102
Loading...
Loading...
Abstract

This study deals with removal of (Cr and Zn) from industrial wastewater resulted from production processes in the State Company of Electrical Industries (S.C.E.I.). The removal process of these metals includes two stages; the first stage is the electrical precipitation of Cr and Zn metals, where Cr concentrations before and after performing this stage are 262 ppm and 26.6 ppm, respectively, while it is 1865 ppm and 45ppm for Zn. The second stage includes treatment with bentonite clay to remove the remaining concentrations of heavy metals in industrial wastewater to be within Iraqi standard specification for discharging in to river. Concentrations are < 0.1 ppm and < 1.0 ppm after applying this stage. These processes are suggested to be an alternative method to that in the State Company of Electrical Industries which uses the chemical precipitation that produce wastes with high concentrations of chrome and zinc, which stored in containers until discarded.


Article
SLIP DETECTION FOR A SPECIFIC DESIGN OF FINGERTIP IN MULTI-DIRECTION UNDER DIFFERENT LOAD CONDITIONS

Loading...
Loading...
Abstract

In this paper, a novel design of robotic fingertip has been proposed to detect slippage between the robotic fingertip and the grasped object in multi-direction under different types of loads (static and dynamic loads). The detection process is based on the monitoring of variation in the normal to the tangential component of contact force ratios. The fingertip is composed of a compression springs and a conventional force sensors that are mounted to be able to measure the contact force components continuously. A mathematical model has been derived relative to a proposed design with the help of Matlab-Simulink program. Furthermore, the robotic hand mechanism contains the flexible parts to adapt the grasping force during the slippage occurrence period in spite of the hand actuator is in a stopped status. The grasped object is designed in a cube shape with two unbalance DC motors to generate an excitation that is used as an external dynamic load. The experimental results revealed that the proposed design for detecting slippage in multi-direction is feasible and effective for improving the stability of the grasping process.


Article
PERFORMANCE OF DRIVEN REINFORCED CONCRETE PILES UNDER THE EFFECT OF DYNAMIC LOADING

Loading...
Loading...
Abstract

Dynamic analysis for reinforced concrete precast piles with (300x300 mm) in dimension and length (12 m) with different types of loading was carried out. The common precast pile in Iraq was adopted in this study. Finite element analysis by ANSYS software was adopted and dynamic loading was applied to check out the strength and performance of pile. The frequency range adopted is based on the low, medium and high frequency. The analysis consisted of single pile (without surrounding soil) and pile embedded in soil as nonlinear material (soil) analysis to evaluate the vertical and horizontal displacements at the location of applied load. According to the analysis of single pile without soil and when the model of pile embedded in the soil indicated that the soil – structure interaction represented the worst case that is mean the simulation of the pile must take into account the effects of soil on the behavior and performance of the precast pile. The applied static loading on the pile model and checking the results of pile strength capacity showed that the applied load equal to the value calculated as per ACI 543R-2000 suggested equation. Based on the finite elements analysis results in case of friction between the contact surface of soil and pile increased the strength capacity of the pile due to the forces developed along the pile so that these forces add to the bearing resistance of the pile. The displacements in case of low and medium frequency are tenth time more in case of soil-structure interaction as compared with the analysis results of single pile alone. It was concluded that the presence of friction between the contact surface of soil and pile increased the strength capacity of the pile due to the forces developed along the pile so that these forces add to the bearing resistance of the pile.


Article
PERFORMANCE ANALYSIS OF A COMPACT SOLAR WATER HEATER WITH PARAFFIN WAX STORAGE UNIT

Loading...
Loading...
Abstract

The present work experimentally studies the thermal performance of a solar collector integrated with a thermal storage unit to form a compact solar water heater. The storage capacity is further enhanced by attaching a phase-change storage unit containing phase change material (PCM) which is paraffin wax. The two units (tanks) take the form of two shallow rectangular boxes (compartments) tilted at 45o to the horizon and are firmly attached to ensure complete mutual heat transfer between them. Water and PCM fill the top and bottom tanks respectively. Measurements were carried out from 8 a.m. to 4 p.m. where the temperatures at various locations in the system were measured along with ambient temperature and solar radiation intensity. Results show that the temperature of both compartments increases continuously during the simulated period with the upper tank having the higher temperatures. The PCM average temperature did not reach melting range (55oC – 60oC) which requires either decreasing the amount of PCM or using a PCM with a lower melting point. The maximum temperatures reached are 82oC for water and 47oC for PCM which are measured at 4 p.m. and the maximum overall system efficiency of the system was 74% at 11:30 a.m.


Article
EVALUATION OF INHIBITOR EFFICIENCY IN CRUDE OIL PIPELINE OF MISSAN OIL FIELDS SOUTH IRAQ

Authors: Raed Abd Al-Hussain --- Haider Hadi Jasim
Pages: 145-161
Loading...
Loading...
Abstract

In this paper, three different types of pipeline materials and four types of corrosion inhibitors were test using immersion method in the crude oil solutions collected from six fields southern Iraq. The influence of crude oil composition; temperatures and pipeline roughness were performed. As a result the X80 carbon steel has lower corrosion rate, while ductile iron has largest value and X60 steel shows moderate value. Imidazonline inhibitor has best efficiency while Great inhibitor shows lower efficiency, the pipeline and oil-line inhibitor show moderate values. Increasing roughness of pipeline material reduced inhibitor adsorption and lead to increase of corrosion rate


Article
STUDYING THE EFFECTS OF LEACHING ON TREATED GYPSUM-RICH SOIL

Authors: Ali Nasir Ibrahim
Pages: 162-173
Loading...
Loading...
Abstract

This wok focus on improving the permeability properties of gypseous soil by mixing the soil with three types of stabilizer materials, which are silicone oil, sodium silicate and bentonite. Four soil samples were prepared, first untreated soil, second mixture of 70% gepseous soil and 30% silicone oil, third mixture of 70% gypseous soil and 30% sodium silicate and forth mixture of 70 % gypseous soil and 30% bentonite . The leaching tests were conducted for all prepared soil using oedometer-permeability leaching device. The results show that the coefficient of permeability decreases with increasing of time, dissolved gypsum and leaching strain, this may attribute to the fact that the stabilizer materials fill the pores that produce from gypsum dissolution after leaching, thus in turn reduce the water fluctuate in the soil which minimize the gypsum dissolution.On the other hand the stabilizer materials work as an impermeable layer to prevent direct contact of water and gypsum particles. Where the leaching strain increases with increasing of dissolved gypsum as the leaching process continues. This behavior may be attributed to the continuous dissolution of gypsum that causes correspond a continuous settlement. Also leaching strain increases with void ratio increasing as the leaching process continue, where the continuous gypsum dissolution leads to increase in void ratio due to presence of pores. The treated gypseoussoil has less void ratio in comparison to untreated soil, due to reduction in gypsum dissolution for treated gypseous soil and thus in turn reduces leaching strain. Sodium silicate shows high efficiency in reducing coefficient of permeability compared to silicone oil and bentonite.

Table of content: volume:23 issue:1