مدیریت زنجیره تأمین ساخت و ساز پایدار با تقاضای احتمالی مصالح

اربابی, سمین; صادقی, هیبت اله; گل پیرا, هیرش

مدیریت زنجیره تأمین ساخت و ساز پایدار با تقاضای احتمالی مصالح

نوع مقاله : پژوهشی

نویسندگان

¹ دانشجو دکتری مهندسی صنایع، گروه مهندسی صنایع، دانشکده فنی، دانشگاه کردستان، سنندج، ایران.

² دانشیار گروه مهندسی صنایع، گروه مهندسی صنایع، دانشکده فنی، دانشگاه کردستان، سنندج، ایران.

³ دانشیار گروه مهندسی صنایع، واحد سنندج، دانشگاه آزاد اسلامی، سنندج، ایران

چکیده

یکی از ضروریترین بخشها در یک زنجیره تأمین توجه به بحث پایداری بهمنظور مدیریت مؤثر زنجیره است. زنجیره تأمین در صنعت ساخت‌وساز، به‌ویژه در تأمین منابع، اخیراً به دلیل تأثیر قابل توجه آن بر پایداری محیطزیست و رفاه جوامع مورد توجه قرار گرفته شده است. در این مطالعه مدلسازی و طراحی زنجیره تأمین ساختوساز با در نظر گرفتن ابعاد پایداری (اقتصادی، اجتماعی و زیستمحیطی) و با هدف کاهش هزینههای زنجیره در شرایط احتمالی بودن تقاضا مورد بررسی قرار میگیرد. در این مطالعه یک مدل طراحی شبکه زنجیره تأمین ساختوساز با در نظر گرفتن تأمینکنندگان، تسهیلات موقت و مراکز احداث پروژهها در نظر گرفته میشود. منظور از تسهیلات موقت مکانهایی جهت ارسال تقاضا منابع به سمت تأمینکنندگان و سپس دریافت منابع، نگهداری و پیشپردازش منابع است. مسئله پیشنهادی در ابتدا با در نظر داشتن پارامترهایی مانند تقاضا منابع، قیمت خرید و فروش کربن منتشر شده، فرصتهای شغلی ایجاد شده و هزینههای مرتبط با زنجیره با در نظر گرفتن مفروضات مسئله با استفاده از یک مدل برنامهریزی خطی عدد صحیح مختلط طراحی میگردد. اما از آنجایی که مقادیر تقاضا منابع ممکن است به دلایلی از جمله توقف ساختوساز در محل پروژه (بدی آبوهوا، بدقولی تأمینکنندگان در تأمین منابع و ...) با احتمال در تأمین مواجه باشد، لذا پارامتر تقاضا احتمالی در نظر گرفته میشود و با استفاده از توزیع نرمال مدلسازی میشود. در پایان، مسئله حاضر توسط نرمافزار گمز حل میگردد و تحلیل حساسیت بر روی پارامترهای کلیدی صورت میگیرد.

کلیدواژه‌ها

موضوعات

لجستیک و زنجیره تأمین در صنایع و خدمات

عنوان مقاله [English]

Sustainable Construction Supply Chain Management with Stochastic Material Demand

نویسندگان [English]

Samin Arbabi ¹
Heibatolah Sadeghi ²
Hêriş Golpîra ³

¹ Department of industrial engineering, Faculty of engineering,University of Kurdistan, Sanandaj

² Department of industrial engineering, Faculty of engineering,University of Kurdistan, Sanandaj

³ Department of Industrial Engineering, Sanandaj Branch, Islamic Azad University

چکیده [English]

One of the most essential parts of a supply chain is paying attention to sustainability in order to effectively manage the chain. The supply chain in the construction industry, especially in the supply of materials, has recently received attention due to its significant impact on environmental sustainability and community well-being. This study examines the modeling and design of the construction supply chain by considering the dimensions of sustainability (economic, social, and environmental) with the aim of reducing chain costs under conditions of stochastic demand. The construction supply chain network design model considers suppliers, temporary facilities, and project construction centers. Temporary facilities are places for sending material requests to suppliers, receiving materials, and holding and pre-processing materials. The proposed problem is initially designed using a mixed-integer linear programming model, considering parameters such as material demand, carbon emission purchase and sale price, job opportunities created, and chain-related costs, while taking into account problem assumptions. However, since material demand values may face supply probability due to reasons such as construction stoppage at the project site (bad weather, suppliers' inability to supply materials, etc.), the probability demand parameter is considered and modeled using a normal distribution. Finally, the present problem is solved using GAMS software, and sensitivity analysis is performed on key parameters.

کلیدواژه‌ها [English]

Stochastic Demand
Sustainability
Supply Chain Management
Construction

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