Construction Engineering and Management Commons^™

Synergizing Gis And Genetic Algorithms To Enhance Road Management And Fund Allocation With A Comprehensive Case Study Approach, Ahmed Gouda Mohamed

Civil Engineering

This study identifies a critical knowledge gap, revealing how the deterioration of roads, compounded by extensive usage and additional factors, poses significant risks to the road networks’ functionality. Without a robust fund allocation and prioritization strategy, the extent of this risk may be overlooked, adversely affecting the performance of essential infrastructure elements. Our research introduces an integrated decision-making model for existing road infrastructures to address this gap. This innovative approach combines a Geographic Information System (GIS)-based road management model with a fund allocation prioritization strategy, enhanced by an optimization engine via a genetic algorithm. The primary aim is to precisely …

Building Services Engineering January/February 2025

Building Services Engineering

No abstract provided.

Impact Of A Kinesthetic Learning Model On Architecture, Engineering, And Construction (Aec) Knowledge In African American Middle School Girls, Mercy F. Fash, Andrea A.N Ofori-Boadu

Journal of Research Initiatives

This study examines the impact of a femalized Architecture, Engineering, and Construction Kinesthetic Learning Model (fAEC-KLM) intervention on the AEC knowledge of African American middle school girls. Fourteen (14) middle school girls completed both pre- and post-surveys and tests that assessed their knowledge of AEC concepts, including roles and responsibilities, gender and racial diversity, and salary benefits. Paired-sample t-tests were utilized to evaluate statistically significant differences in knowledge before and after fAEC-KLM intervention. Results showed notable improvements in students' knowledge of AEC salary and benefits, as well as the underrepresentation of females, particularly African American females, and AEC roles and …

From Football To Construction: Transferring Leadership Competencies For The Era Of Construction 4.0, Payson W. Campisano

Construction Management

This study aims to explore the intersection of leadership competencies developed through football and their applicability to the construction industry, with a focus placed on the emerging leadership needs in Construction 4.0. Drawing on insights from interviews with current and former student-athletes who study or studied construction management at the California Polytechnic State University in San Luis Obispo, the research highlights the transferability of key leadership qualities from football, such as resilience, teamwork, and critical thinking, to the cognitive, interpersonal, business, and strategic domains of leadership within construction management. Building on the work of Yang, Sunindijo, and Wang (2020), who …

Construction Change Order Data As Inputs For A Programmatic Risk Model, Eric C. Klein

Theses and Dissertations

Hurricane Michael struck Tyndall Air Force Base as a Category 5 storm with 160 mph winds, damaging or destroying 90% of its infrastructure (484 buildings). This devastation prompted the Department of Defense to rebuild Tyndall as the “Installation of the Future,” encompassing 44 Military Construction (MILCON) projects and 260 Facility Restoration, Sustainment, and Modernization (FRSM) projects. Since reconstruction began, over 630 Change Request Forms (CRFs) have been closed, adding $67.8 million in costs and 4,880 construction days. The Air Force Civil Engineer Center's Natural Disaster Recovery (NDR) Division developed a programmatic risk model to predict future costs and delays. However, …

Operation And Maintenance Costs In Reverse Osmosis Desalination Projects Adopting Public-Private Partnerships: A Comprehensive Investigation And Analysis, Mayar Mohamed Khairy

Theses and Dissertations

Water Desalination projects, specifically ones adopting reverse osmosis (RO) technology, play a pivotal role in addressing the scarcity of water globally. Since these projects require huge investments, there is an imperative need to focus on the role of public-private partnerships (PPPs) in their developments. This research tries to provide a comprehensive investigation into the factors affecting O&M costs in PPP desalination projects due to their importance.

A comprehensive research approach, including a literature review, expert interviews, survey analysis, and statistical tools, is adopted in this research aiming to identify key factors and recommendations based on best practices in O&M costs …

Advanced Construction Scheduling: Capturing Conditional And Stochastic Relationships, Amr Elsabagh

Theses and Dissertations

Proper planning is a key factor in all business endeavors. This is especially important in the construction industry as a project is sensitive to countless factors that affect the project's time and cost. This created the need for agile and flexible schedules for close monitoring and dynamic planning for construction projects. The currently prevailing scheduling techniques are CPM and PERT, which professionals in the field widely use. These methods create static schedules that are vulnerable to any changes in the schedule logic, which often happens during construction projects. In addition, these Scheduling techniques do not capture the uncertainties and complex …

Organizational Change Management In Egypt; Contractors’ Perspective, Karim Ayoub

Theses and Dissertations

Organizational change management in the construction industry is a vital process for companies to consider in their operations. Successful implementation of the process allows the companies to go a step further in the market due to their competitiveness derived from better performance and efficiency. However, applying change to the organization and introducing new structure is a challenge for any company seeking better performance, but worth it if it is implemented properly. In general, this research sheds light on the organizational change management implementation in construction contractors in Egypt. Where, this study aims to demonstrate the organizational change management initiatives and …

Challenges Of Sustainable Infrastructure In Egypt For Contractors, Consultants, And Owners, Abdelrahman Ali Gaber Eng., Mohammed Elsayed Elsharkawy Assis. Prof., Adel Ibrahim Eldosouky Prof.

Journal of Engineering Research

This research investigates the multifaceted challenges and opportunities for implementing sustainable infrastructure in Egypt from the perspectives of key stakeholders—contractors, consultants, and owners. It uses structured questionnaires to draw on a comprehensive literature review and a field study. These questionnaires were distributed to experts across three vital sectors: roads and bridges, water and sewage networks, and ports and shore protection. A total of 95 participants completed the survey, surpassing the statistically required sample size of 61, calculated using Kish's 1965 formula, thereby enhancing the robustness of the findings. Key barriers identified include high initial costs, insufficient operational funding, lack of …

Optimizing And Validation Of Sustainable Uhpc With Waste Glass Powder Utilizing Modified Particle Packing Approach And Response Surface Methodology, Mohamed Taman, Elsaid Maaty, Alaa Mehrez, Ahmed Kamal Isaac

Journal of Engineering Research

The current study explores the potential of utilizing Waste glass powder (WGP) as an alternative to cement in the development of sustainable eco-friendly Ultra-high-performance concrete (UHPC). UHPC mixtures underwent optimization through the application of a Modified Andreasen and Andersen (MAA) particle packing model, resulting in a reduction of cement content from 900 to 800 kg/m³. Six mixes were cast, with varying levels of cement replacement ratios with WGP up to 50%. The evaluation focuses on the flowability, dry density, and mechanical properties of UHPC at different ages using normal curing. A statistical model utilizing response surface methodology (RSM) …

Material Suppliers’ Perspective On Collaboration In Industrial Construction Projects, Seogjae Choi, William J. O'Brien

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Material suppliers' involvement in construction project planning has been recommended as an effective measure to improve project performance by using their expertise. However, the recommendation is not universal, and some researchers disputed the value of early involvement of suppliers depending on material type. Moreover, prior studies considered main contractors' and owners' perspectives mostly in examining how to increase the involvement of suppliers. To add material suppliers' perspective, this study conducted interviews with experienced professionals from 16 material suppliers including standardized, make-to-order, and custom products. The results are specified by separating the type of materials and sub-phases of planning. The results …

Forecasting State-Level Construction Labor Earnings For Enhanced Project Cost Control: An Econometric And Deep-Learning Analysis Of The Leading Economic Indicators, Ahmed Shiha, Islam H. El-Adaway

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

As a major input to several work packages, the labor element constitutes a critical component for successful performance of construction projects. Localized labor shortages, fundamental changes in prevailing wage laws, and historical shifts in the unionization rates of construction workers impair the adequate estimation of construction labor costs in diverse labor market dynamics. Meanwhile, existing studies have utilized national-level indicators to study the trends of construction labor costs, but the relationship between the multifaceted local economic factors and state-level construction labor costs remains understudied. This paper fills such a knowledge gap. A three-stage methodology is adopted: (1) data collection of …

Individual Design Task Final Report Security Design, Ciarrah Bell

Honors Academy

"The Environmental Services Campus project is a comprehensive development designed to support the City of Springfield’s Environmental Services operations, with a focus on functionality, sustainability, and safety. The campus includes administrative office space, staff parking, a maintenance vehicle garage, and educational facilities aimed at community outreach. A component of the project is establishing site-wide security that not only protects personnel and assets but also integrates seamlessly with the architectural and environmental goals of the facility.

The primary focus of the Security IDT is the development and implementation of a comprehensive security strategy for the entire site. This includes designing and …

Comparative Life Cycle Assessment Of Conventional Open-Cut Pipeline Replacement With Trenchless Cured-In-Place Pipe Renewal Method For Wastewater Applications Using Midpoint Approach, Eesha Nilesh Karkhanis

Civil Engineering Theses - Archive

Underground infrastructure development has a significant impact on society, leading to continuous technological advancements. With the rising environmental concerns, novel technology is leaning towards adapting to sustainable practices for pipeline rehabilitation. Conducting a comparative study of environmental impacts produced by pipe renewal and replacement processes is a vital step towards sustainable development of underground infrastructure. Open-cut Pipeline Replacement (OCPR) is the conventional method used for pipeline rehabilitation, which involves the excavation of the ground surface to place a new pipe underground or replace an existing one. This process includes the trenching of ground, followed by surface reinstatement through backfill. The …

A Framework For Ai Implementation In Construction: Use Cases, Challenges, And Benefits For Contractors, Jaqueline De Aquino Leite Gomes

Theses and Dissertations--Civil Engineering

The construction industry is one of the most important sectors that contribute to the economy worldwide, but it has been very slow in adopting digital transformation. Artificial Intelligence is the backbone of digital innovation, and it can help solve inefficiencies, improve safety, and enhance decision-making in construction. This thesis reviews 85 academic papers, identifies 354 AI use-cases, 180 benefits, and 173 challenges. Key findings have looked at the role of AI in safety monitoring, design optimization, and operational efficiency, while barriers involve data scarcity, high costs, and readiness of the workforce.

All of these challenges have one very handy framework …

Identifying Early Warning Signs Of Construction Labor Shortages, Ahmed Shiha, Islam H. El-Adaway

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Construction labor shortages constrain project-level objectives and national development plans. The goal of this study is to utilize the lagged effects of macroeconomic conditions as early warning signs of construction labor shortages. To this end, the authors adopted a methodology, encompassing (1) retrieval of publicly available data and preprocessing of construction labor shortage as the target variable and macroeconomic measures as the explanatory variables, (2) identification of short-term associations between shortages and economic cycles using the Granger causality test, (3) examination of long-term relationships between labor shortages and economic conditions using the Johansen cointegration test, and (4) estimation of the …

พฤติกรรมความล้าของแผ่นพื้นคอนกรีตเสริมเหล็กที่ได้รับการเสริมกำลังด้วยแผ่นพอลิเมอร์เสริมแรงด้วยเส้นใยอารามิด, ภัทรพงษ์ ปุญจุบัน

Chulalongkorn University Theses and Dissertations (Chula ETD)

ปัญหาความเสียหายของแผ่นพื้นคอนกรีตเสริมเหล็กจากแรงกระทำซ้ำ เป็นประเด็นสำคัญที่ส่งผลต่อความทนทานและอายุการใช้งานของพื้นสะพานคอนกรีตในสภาพแวดล้อมจริง งานวิจัยนี้จึงมุ่งศึกษาพฤติกรรมของแผ่นพื้นคอนกรีตเสริมเหล็กภายใต้แรงกระทำรวมศูนย์ ทั้งในสภาวะแรงกระทำแบบสถิตและแรงกระทำซ้ำ พร้อมประเมินประสิทธิภาพของการเสริมกำลังด้วยแผ่น AFRP strand sheet เพื่อพิจารณาความเหมาะสมของวิธีการเสริมกำลังดังกล่าวในงานบำรุงรักษาโครงสร้างสะพาน การทดสอบถูกออกแบบให้ครอบคลุมทั้งตัวอย่างที่ไม่ได้เสริมกำลังและตัวอย่างที่เสริมกำลัง โดยพฤติกรรมโครงสร้างที่สนใจประกอบด้วยความแข็งเกร็งหลังแตกร้าว การกระจายแรงภายในแผ่นพื้น พฤติกรรมรอยแตกร้าว การกระจายความเครียด และลักษณะการวิบัติภายใต้สภาวะที่ใกล้เคียงกับการใช้งานจริง จากผลการศึกษาพบว่าแผ่นพื้นที่เสริมกำลังด้วย AFRP มีพฤติกรรมโครงสร้างที่มีเสถียรภาพมากขึ้น สามารถควบคุมพัฒนาการของรอยแตกร้าวได้ดี และมีความทนทานต่อแรงกระทำซ้ำสูงกว่าแผ่นพื้นทั่วไป ความเสียหายสะสมลดลงอย่างมีนัยสำคัญ และโครงสร้างยังคงรักษาสมรรถนะได้ดีหลังผ่านการรับแรงกระทำซ้ำ ผลการวิจัยชี้ให้เห็นว่า AFRP strand sheet เป็นวิธีเสริมกำลังที่มีประสิทธิภาพในการเพิ่มความต้านทานต่อแรงกระทำซ้ำ เพิ่มความแข็งเกร็งหลังแตกร้าว นำไปสู่การยืดอายุการใช้งานของแผ่นพื้นคอนกรีตเสริมเหล็ก ซึ่งสอดคล้องกับความต้องการในการปรับปรุงความทนทานของแผ่นพื้นสะพานคอนกรีตเสริมเหล็กในงานวิศวกรรมโครงสร้างปัจจุบัน

Life Cycle Assessment Approach For Trenchless Cured-In-Place Pipe Sewer Renewal Method, Shiva Mandari

Civil Engineering Theses - Archive

The advancement of underground infrastructure is vital to the development of modern society and continues to inspire technological progress. As environmental concerns grow, innovative approaches to pipeline rehabilitation are increasingly emphasizing sustainability. Assessing and contrasting the environmental effects of renewing existing pipelines versus complete replacement is key to fostering eco-conscious improvements in subsurface utility systems. Cured-in-Place Pipe (CIPP) is a commonly used trenchless method for rehabilitating pipelines. It involves inserting a flexible liner, saturated with resin, into the existing pipe. This insertion can be achieved through inversion using air or water pressure, or by mechanically pulling and inflating the liner. …

Evaluating The Effectiveness Of Lidar And Photogrammetry For Inspecting Mse Walls In Bridges, Shakil Ahmed

College of Graduate Studies: Theses & Dissertations

Mechanically Stabilized Earth (MSE) retaining walls are vital components of transportation infrastructure, providing structural support for embankments and bridge approaches. As many walls approach or exceed their design life, concerns regarding long-term stability, settlement, and displacement have increased. Traditional visual inspection remains the most common assessment method; however, it is subjective and often unable to detect subtle geometric changes that may precede structural distress or failure. This study evaluates Terrestrial LiDAR (Light Detection and Ranging) Scanning (TLS) and Close-Range Photogrammetry (CRP) as nondestructive, noncontact alternatives for detecting displacement in MSE retaining walls. Three representative sites were investigated: a Control Wall …

Behavior Of Reinforced Concrete Beams With Externally Anchored Rebars, Nyan Soe Lynn

Chulalongkorn University Theses and Dissertations (Chula ETD)

This study investigates a minimally invasive rehabilitation method for reinforced concrete (RC) beams using externally anchored reinforcement by means of epoxy. Two programs were conducted: flexural rehabilitation using externally anchored longitudinal bars, and shear rehabilitation using externally anchored U-shaped stirrups. Four beam specimens were tested under four-point bending for the flexural program, and four under three-point bending for the shear program. Test results from the flexural program showed large deformation due to plastic hinge formation. Due to their unbonded nature, the external rebars engaged later than the internal reinforcement and developed large deflection. Load-carrying capacity, however, was not increased since …