بسبب تزايد الحاجة لتحسين الجودة في مشاريع التشييد أصبح من الضروري تخفيض إعادة العمل و منعه و ذلك بفهم أساسه و تمييز أسباب حدوثه, و لذلك عمل البحث على دراسة ظاهرة إعادة العمل في المشاريع المحلية (الأبنية السورية) من حيث أسبابها و تصنيفها.
تم جمع المعلومات لمعرفة أسباب إعادة العمل عن طريق استبيان عرّف فيه عدد من المتغيرات (100 متغير), و أدرجت هذه المتغيرات تحت سبعة محاور رئيسة هي: بشرية, تنسيق و تواصل, فنية و هندسية, المالك, إدارة المشروع, العقد, التصميم.
عزّزت الاستجابات باستعمال التحليل العاملي لتجميع المتغيرات إلى عوامل أساسية. و كشفت الدراسة عن أهم المصادر التي تؤدي لإعادة العمل, و منها: عمال قليلي الخبرة, تنفيذ المشاريع بعد فترة كبيرة من الدراسة, المدة القصيرة الموضوعة من قبل المالك, سوء إدارة المشروع الكلية, الدراسة غير الكافية للمشروع قبل التقدم للعرض و الانفصال بين عملية التصميم و التنفيذ. و أوصى البحث في النهاية بتطبيق سياسات إدارة الجودة التي يمكنها تخفيض إعادة العمل في مشاريع التشييد السورية.
Because of the increasing need to improve quality in construction projects, it is necessary to reduce and prevent reworks, and that is by understanding their roots and recognizing their causes. So this research studies reworking on local projects (Syrian buildings) in terms of causes and classifications. Information was collected from questionnaire that identified some variables (100 variables) contributing to reworking. These variables were categorized according to seven main headings: human, coordination and communication, technical and engineering, owner, project management, contract, and design. Responses were further condensed using factor analysis to group the variables into basic factors. This study revealed that the sources of reworks included inexperienced personnel, projects executions after a long time of studying, a short period given by owner, poor total project management, inadequate study for project before bidding, and separation between design and executing. Finally, this research recommended that a total commitment to quality management policy applications would lead to a reduction in reworks on Syrian construction projects.
References used
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Burati, J. L.; Farrington, J. J.; and Ledbetter, W. B.” Causes of quality deviations in design and Construction”. Journal of Construction Engineering and Management. (1998). 118(1), 34–49
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Oyewobi L. O.; Ibironke O. T; Ganiyu B. O. and Ola-Awo A. W," Evaluating rework cost- A study of selected building projects in Niger State, Nigeria " Journal of Geography and Regional Planning, March 2011. Vol. 4(3), pp. 147-151
Poor design is a major factor in reducing the overall performance of construction projects as well as being directly responsible for many projects cost overrun, delay and being plagued with rework,
variations and disputation.
This research discusse
Construction projects are characterized as very complex projects. This is because of their uniqueness, dynamic political and economic circumstances, weather, long life of projects, fluctuations in resources prices, and changes of engineering require
this
study a questionnaire was implemented as a primary procedure for
any methodology of risk management, and send out to the experts
who work in the field of construction, in order to evaluate the
reality of our projects as well as determine the
Changes in construction projects are considered as prevalent phenomenon. Where,
most of projects face changes in drawings, specifications, work scope, or contractual
conditions.
The traditional construction followed in Syrian projects has a long t
Construction projects are subject to risks and uncertainties which affect project targets (cost,
time, quality and safety).
This paper reviews risks and their effects on construction projects in Syria, and it aims to
develop risk management framew