Civil and Environmental Engineering Commons^™

New Method To Calculate Friction Velocity In Smooth Channel Flows Using Direct Numerical Simulation Data, Harshit Mishra, S. Karan Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

In this paper, we leverage the direct numerical simulation (DNS) data for closed-channel flow for a range of friction Reynolds number (Reτ∼180-5,000) to develop a new one-point friction velocity method (OPFVM) to calculate friction velocity U∗ in terms of free-surface velocity Um, flow depth h, and kinematic viscosity ν. In contrast to prevalent methods that require several cumbersome near boundary measurements to obtain friction velocity, the OPFVM relies on a single easy-to-measure free-surface velocity measurement. The formulation is used to obtain friction velocity for a closed-channel flow (CCF) DNS regime with Reτ=10,049 and on four open-channel flow (OCF) DNS regimes …

Freezing-Thawing Hysteretic Behavior Of Soils, Jidong Teng, Antai Dong, Sheng Zhang, Xiong Zhang, Daichao Sheng

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The soil freezing characteristic curve (SFCC) plays a crucial role in investigating the soil freezing-thawing process. Due to the challenges associated with measuring the SFCC, there is a shortage of high-quality or rigorous test results with sufficient metadata to be effectively used for applications. Current researchers typically conduct freezing tests to measure the SFCC and assume a singular SFCC when studying the freezing-thawing process of soils, although limited studies indicated that there is a hysteresis during the freezing and thawing process. In this paper, a series of freezing-thawing tests were performed to assess the SFCC, utilizing a precise nuclear magnetic …

Building Sevices Engineering July/August 2024

Building Services Engineering

No abstract provided.

A Strategic Framework For Attaining Golden Leed Certification For Resorts, Mohamad Soliman, Hadi Jawad, Mariam Younes, Oussama El Hamaoui, Saadeddine Ramadan

BAU Journal - Science and Technology

The contemporary landscape of engineering is witnessing a pivotal shift towards sustainability, encapsulated in the catchphrase "GO GREEN". This global trend underscores a strategic emphasis on sustainable design, where engineering projects prioritize a delicate balance among environmental, societal, and economic considerations.” However, a persistent challenge in construction projects lies in their tendency to neglect environmental impact, contributing to increased contamination levels. This paper aims to introduce the "Lodge in the Green" project, meticulously aligned with LEED Certification principles. LEED, or Leadership in Energy and Environmental Design, stands as the foremost green building rating system, highlighting its relevance in contemporary sustainable …

A Comparative Study Of Local And Global Construction Materials Sourcing Strategies For Road Projects In Nigeria, Araoye Olarinkoye Ajiboye, Micaiah Zhitsu Silas, Chinedu Chimdi Adindu, Elijah Aina Alhassan, Stephen Sunday Kolo

CSID Journal of Infrastructure Development

This study is a comparative analysis of local and global sourcing strategies to determine the impact of strategic material sourcing on road construction project performance. The study aimed to evaluate the effects of material-sourcing strategies on the performance of road construction companies in Nigeria. A mixed-methods approach was used, incorporating both qualitative and quantitative research. Data collection involved sampling techniques using structured questionnaires and oral interviews. Regression analysis evaluated the relationship between strategic material sourcing and road construction performance. The results revealed that 87.5% of the materials used by road construction companies in the study areas were sourced from the …

Development Of Jetty Structure Design Procedures At The Schematic Design Stage With The Implementation Of Computational Design And Building Information Modelling To Improve Design Time Performance, Aidil Fitriansyah, Yusuf Latief

CSID Journal of Infrastructure Development

The construction sector faces persistent productivity challenges, significantly hindering the efficiency of design workflows. Computational Design (CD) and Building Information Modeling (BIM) offer potential solutions. CD enables the exploration of parametric design alternatives, while BIM enhances collaboration, visualization, and decision-making through comprehensive 3D models. This study aimed to investigate the processes and activities involved in the structural design of jetties during the schematic design phase using CD and BIM and to assess the impact of these activities on design time performance. A comprehensive analysis of secondary data was carried out, interviews were conducted with design experts, and quantitative analysis using …

Advancing Construction Practices: Innovations, Efficiency, And Safety In The Digital Era, Mohammed Ali Berawi, Perdana Miraj, Mustika Sari

CSID Journal of Infrastructure Development

In the ever-changing landscape of the construction industry, digital tools and procedures are a cornerstone of architectural and engineering practices. Building Information Modeling (BIM) and other computational design methodologies transform how projects are imagined, planned, and executed. These tools improve design precision while allowing real-time collaboration across different teams. As a result, adopting digital approaches is no longer an option but rather a requirement for remaining competitive in the construction industry. These innovative approaches provide an in-depth understanding of project complexities, drive design optimization, and contribute to resource management efficiency.

Construction efficiency has also improved due to lean manufacturing processes …

The Most Influential Factors On The Risk Cost Estimation Process Of Implementing Bim 5d In Quantity Take-Off For Green Retrofitting Of High-Rise Buildings, Febrianti Silviana Dewi, Yusuf Latief, Bernadette Detty Kussumardianadewi

CSID Journal of Infrastructure Development

Green retrofitting aims to guide buildings toward sustainable practices, reducing carbon emissions associated with building operations and construction. This study explores the application of Building Information Modeling (BIM) 5D Quantity Take-Off (QTO) to existing high-rise buildings, focusing on components that enhance the performance of environmentally friendly structures and project management. This research identifies the factors influencing the cost estimation process and examines the risks across various phases, activities, outputs, and utilization of BIM 5D in cost estimation. The study highlights the most influential factors in implementing green retrofitting for high-rise buildings using structured interviews, questionnaires, and expert validation. The analysis …

Retracted: Empowerment Of Increasing Economic Resilience Post Covid-19 Janjang Wulung Village Community Through Creative Economic Village Planning, Alvian Wardhana, Muhammad Ramayuda, Faza Farhan Muhammad, Acyuta Putri Nariswari, Salsa Dwi Cahya, Garin Ardi Wicaksono, Dani Rizky Dianafi, Muhammad Ivan

CSID Journal of Infrastructure Development

This article has been retracted at the request of the authors.

Reason:

1. Conflict of interest for using an open database under the assignment of “Studio Desa” on the odd semester 2020/2021 at Perencanaan Wilayah dan Kota, Universitas Brawijaya

2. The plaintiff's consideration comes from another researcher under the assignment of “Studio Desa” related to the reconstruction of Journal results and development

3. Avoid bigger conflicts, especially those related to all parties, including authors, Plaintiff parties, institutions, and all parties involved

The Publisher

Comparison Of The Accuracy Of Contour Data In Photogrammetric And Terrestrial Surveys, Hendra Saputra, Roma Rizki, Marhadi Sastra

CSID Journal of Infrastructure Development

Understanding and accurately representing the Earth's surface is crucial in various scientific and practical fields. Over the past decades, measurement technology has seen remarkable advancements, offering an array of methods for recording and analyzing Earth's surface with increasing precision and efficiency. Two primary approaches have risen to the forefront of this field: the Digital Terrain Model (DTM) and terrestrial measurements using a Total Station. Although both technologies offer unique advantages and constraints, a comprehensive direct comparison between these two methods often remains an underexplored area. The Digital Elevation Model (DEM) represents the height of the ground surface resulting from acquisition …

Critical Success Factors In Pump Production To Increase Lean Manufacturing Project Performance, I Bayu Dwianditya, Leni Sagita Riantini, Yusuf Latief

CSID Journal of Infrastructure Development

Floods represent a significant global disaster, occurring more frequently and causing severe damage. The effective production of pumps is crucial in supporting flood infrastructure projects. Lean Manufacturing (LM) and Project Management (PM) approaches must be incorporated to improve pump production manufacturing. Therefore, this study aims to identify the critical success factors that enhance LM performance in pump production projects for flood management through surveys conducted among pump manufacturers, governmental bodies, and relevant stakeholders engaged in flood infrastructure projects. The study's results highlight the importance of understanding and analyzing project complexity, aligning pump design with project requirements, and mastering processes and …

Analyzing The Effect Of The Construction Safety Audit Model Using The Business Process Model And Notation (Bpmn) Method On Improving Communication And Collaboration Between Stakeholders., Muhammad Ghazali, Danang Budi Nugroho, Yusuf Latief

CSID Journal of Infrastructure Development

The significant increase in infrastructure development is directly proportional to the rising accident rate in the construction sector, making it one of the highest-risk sectors for accidents. This phenomenon indicates that existing construction safety audits have not been effective in preventing accidents, largely because audits are generally conducted only at the construction stage. Audits at the design stage, however, have the potential to impact accident prevention significantly. Therefore, this research aims to develop a construction safety audit model using the Business Process Model and Notation (BPMN) and analyzes the impacts on stakeholder communication and collaboration. BPMN was chosen because it …

Investigating The Relationship Among The Construction Safety Plan, Knowledge Management, Audit Process, Information System, Web, And Bim With Construction Safety Performance, Zafira Alysha Fadli, Yusuf Latief, Danang Budi Nugroho

CSID Journal of Infrastructure Development

The rapid growth of high-rise building construction in Indonesia has led to a significant increase in accidents, necessitating a robust audit process for construction safety. This research investigates the relationship between construction safety plans (CSPs), audit processes, knowledge management (KM), information systems, the web, and BIM on construction safety performance, aiming to develop a BIM-based KM audit process. To analyze the significance level of various indicators for each variable considerable importance, a mixed-methods approach was employed, combining qualitative insights from expert interviews with quantitative analysis using Structural Equation Modeling (SEM) via SmartPLS. The findings in the study reveal that the …

Analysis Of Traffic Performance And Passenger Car Equivalent Value In Tangerang – Merak Toll Road Section, Jonathan Sidabutar, Sutanto Soehodho, Nahry Nahry

Smart City

Economic growth involves massive movement of logistics, where goods transported by land become the main choice by supplier. One of them being the main access for connecting Java and Sumatera is the Tangerang – Merak toll road. An increase in traffic volume occurs every year, followed by additional problems such as congestion which obviously affects traffic performance. Given this reason, it is necessary to evaluate traffic performance through parameter assessments, which are the degree of saturation and travel speed.

This research was carried out on the Tangerang - Merak toll road section KM 32,300 to KM 35,500 towards Jakarta for …

Impact Of Auxiliary Markings On Intersection Safety, Mhd Tommy Franata, Martha Leni Siregar, Andyka Kusuma

Smart City

The rapid growth of motorcycle vehicles coupled with inadequate traffic discipline contributes to an escalating rate of traffic accidents and casualties. This study investigates the efficacy of auxiliary road markings in enhancing traffic safety and intersection performance along Lieutenant Sutopo Street, Promoter Street, and Boulevard BSD East in South Tangerang, Indonesia. Employing the Traffic Conflict Technique (TCT), the research evaluates safety enhancements and service level alterations subsequent to the installation of road markings. Preliminary observations highlight significant safety concerns and traffic conflicts at the intersection. Consequently, auxiliary road markings are strategically installed to regulate driver behavior, enhance lane discipline, and …

Rotational Rheometry Test Of Portland Cement-Based Materials – A Systematic Literature Review, Laura Silvestro, Artur Spat Ruviaro, Geannina Lima, Luís Urbano Durlo Tambara Júnior, Dimitri Feys, Ana Paula Kirchheim

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Study Systematically Reviews 62 Papers on the Use of Rotational Rheometry to Assess the Fresh State Behavior of Portland Cement-Based Materials. the Research Highlights the Wide Variation in Test Methods and Aims to Provide a Comprehensive overview. Findings Reveal that 50.0% of Studies Employed Vane Geometry, despite its Limitations in Providing Transformation Equations. Regarding Dynamic Shearing Tests, 67.0% Followed a Consensus using a Pre-Shearing Step and a Stepwise Routine with Stabilization Times ≥ 10 S. While the Bingham Model is Commonly Used, the Study Emphasizes the Importance of Considering Shear-Thinning Behavior in Cementitious Materials. Models Like Herschel-Bulkley and Modified …

Mitigating Uncertainty: Analyzing The Role Of Risk Management In The Construction Industry, Mike Nwafor

Harrisburg University Dissertations and Theses

The construction industry, inherently dynamic and complex, faces a myriad of uncertainties that can significantly impact project outcomes. In this context, effective risk management emerges as a critical component in ensuring project success and sustainability. This abstract explores the role of risk management in the construction industry, highlighting its multifaceted impact on project timelines, costs, and overall quality. Risk management in construction includes detecting, assessing, and managing possible hazards and opportunities throughout the project's life cycle. It includes a proactive approach to anticipating, analyzing, and responding to uncertainties driven by factors such as design modifications, material shortages, labor concerns, weather …

A Machine Learning Framework For Predicting Fabrication Hours For Industrial Steel Structure Projects, Dalia Ibrahim

Theses and Dissertations

Construction projects are considered high risk projects especially due to their required large capital making them require extreme attention in estimation as overestimating a project will lead to losing bids and underestimating them will lead to incurring more costs than budgeted resulting in losses. However, estimators are often faced with very tight timelines to finish their estimates leading them to primarily rely on their experience disregarding some crucial factors resulting in inaccurate estimates. In the steel structures industry, the steel fabrication phase accounts for 30 to 40% of the overall project cost; in addition, the steel industry is labor driven; …

Study Of Factors Influencing Traffic Violations In Jakarta: Perspective Of The Theory Of Planned Behavior (Tpb) In The Implementation Of Electronic Traffic Law Enforcement (Etle), Khobat Dewa Ruci, Sutanto Soehodho, R. Jachrizal Sumabrata

Smart City

Transportation safety in Indonesia reflects its culture and modernity, but the high rate of traffic accidents indicates significant challenges. Data from IRSMS and Polda Metro Jaya reveal an increase in accidents and traffic violations, reinforcing the need for effective law enforcement. The implementation of ETLE, supported by Law No. 22 of 2009 on Road Traffic and Transportation and Law No. 19 of 2016 on Electronic Information and Transactions, is a strategic effort to improve law enforcement. However, its effectiveness in Jakarta context still requires in-depth evaluation. This thesis focuses on the psychological factors in the use of ETLE using the …

3d Printing Of Fiber-Reinforced Calcined Clay-Limestone-Based Cementitious Materials: From Mixture Design To Printability Evaluation, Haodao Li, Jingjie Wei, Kamal H. Khayat

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Sustainability and limitations in embedded reinforcement are the main obstacles in digital fabrication with concrete. This study proposed a 3D printable fiber-reinforced calcined clay-limestone-based cementitious material (FR-LC3). The binder systems incorporating calcined clay (CC) and limestone filler (LF) were optimized by determining the flow characteristics and water retention ability of the paste. The effect of fiber volume on the key fresh and mechanical properties of the fiber-reinforced mortars made with the optimized binder was evaluated. A combination of offline assessments and inline printing were employed to investigate the printability of the FR-LC3 with various binder systems and viscosity-modifying admixture (VMA) …

Application Of Multidisciplinary Community Resilience Modeling To Reduce Disaster Risk: Building Back Better, Wanting "Lisa" Wang, John W. Van De Lindt, Blythe Johnston, P. Shane Crawford, Guirong Grace Yan, Thang Dao, Trung Do, Katie Skakel, Mojtaba Harati, Tu Nguyen, Robinson Umeike, Silvana Croope, Andre R. Barbosa

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

From december 10 to december 11, 2021, a deadly tornado outbreak struck across several states in the us, including arkansas, illinois, kentucky, and tennessee. This tornado outbreak resulted in at least $3.9 Billion in damage, more than 90 fatalities, and hundreds of injuries. Mayfield, kentucky, a small city in the eastern united states, was hit by a long-track tornado rated as an enhanced fujita 4 (ef4) scale and was one of the communities most heavily damaged during the tornado outbreak. Following the 2021 tornado event, an analysis was performed in the interdependent networked community resilience modeling environment (in-core) for the …

Cost Modeling Of Provision C.3 Green Stormwater Infrastructure Requirements For Residential Development In Concord, California, James Henry Mizutani

Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research

To assist the city of Concord in achieving its housing goals as presented in its general plan, while still meeting the stormwater discharge requirements laid out in the city’s municipal discharge permit, I worked with local developers and consultants to create a spreadsheet modeling tool that allows housing developers to estimate the total cost of green stormwater infrastructure needed to comply with local regulations.

This report contains a summary of the conditions leading to the necessity of this tool, the steps the tool takes that go beyond existing models, a description of how the model operates, instructions on how to …

Cardboard Concrete Column Formwork, Danny Shrestha, Joelle Schalesky

Architectural Engineering

This project is an exploration of cardboard as a potential material for construction formwork for concrete columns. Multiple material tests were conducted to explore the behavior of cardboard and concrete. Multiple specimens of cardboard were tested for modulus of elasticity, moment of inertia, and tensile strength. Concrete was tested for its apparent lateral fluid pressure under vibration. Cardboard formwork was then designed and constructed based on these tested behaviors. The final design of the formwork consisted of folding cardboard sheets lined with hardboard, supported by wood studs, and tied by plastic banding straps.

Ultimately, two concrete columns―8' and 10' in …

Ace Mentor Program - Central Coast Chapter, Brayden Samuel Groshart

Construction Management

For my senior project, I established a chapter of the ACE (Architecture, Construction, and Engineering) Mentor Program in San Luis Obispo, California. This program provides high school students with hands-on experience and exposure to careers in the architecture, construction, and engineering industries. The program spanned eight weeks, balancing theoretical knowledge and practical application. The curriculum began with sessions on the fundamentals of architecture, engineering, and construction. In order to expose the students to real world practices, we organized tours of an architecture firm, an engineering firm, and an active construction site. These visits allowed students to engage with professionals, observe …

Construction Of Lightly Reinforced Concrete Shear Wall And Footings, Luke Jackson Method

Construction Management

This paper details the construction of two cast in place foundations as well as a lightly reinforced cast in place wall. The project, located inside the high bay, provides the Architectural Engineering (ARCE) department with an opportunity to test Fiber Reinforced Polymer wrap as a retrofitting option for walls dating back to pre-1980s. Due to site conditions, and project design, this project required extensive planning and communication within our team, faculty advisors, and shop technicians. This paper will discuss the phasing of construction and procurement of material that was required for the completion of this project. It also aims to …

Son Care Foundation – Lean To Shade Structure Design And Construction, Ryan Joseph Mccann

Construction Management

This paper discusses the design and construction of a lean-to-shade structure built for the Son Care Foundation in San Luis Obispo. The Son Care Foundation is a nonprofit organization that raises guide dogs for veterans and first responders with PTSD. This shade structure is 16 feet long and 6 feet wide, its height slopes from 9 feet in the front down to 8 feet in the back creating a roof pitch of 2:12. The sheet metal roof also has an overhang of approximately 1 foot. As requested by the client, the shade structure was designed to fit the aesthetic of …

Effect Of Pismo Clams As Partial Fine And Coarse Aggregate Replacement On Workability And Compressive Strength Of Concrete, Alan Munoz Pille

Construction Management

Concrete has been utilized for ages. Unfortunately, over the hundreds of years there has been little development in the applications of new aggregate materials. The world is moving towards a sustainable way of living and as a result seashells have come into the mix. Pismo Clams are a native species to San Luis Obispo County. This marine species has the possibility of becoming a partial aggregate replacement for fine and coarse aggregates in concrete. The results of prior studies indicate a possible application of seashell use in concrete. This paper evaluates the workability and compressive strength of concrete containing fine …

Restoration Of The Cantilever Deck In Poly Canyon, Calvin S. Morgan, Calvin P. Vigeant, Roger G. Biddle

Construction Management

This interdisciplinary project aims to restore the Cantilever Deck in the Experimental Structures Laboratory back to an operational condition. As of Spring 2023, the deck has fallen into a state of disrepair and has been deemed structurally unsound by the university. The structural disrepair is concentrated around the wooden beams underneath the deck, but the handrails and overall color of the assembly have also fallen to levels deemed undesirable. The Restoration will remedy all these issues as well as guarantee that our repairs will last long into the future. This project is an interdisciplinary effort, the team consists of ARCE …

Sustainable And Cost-Effective Work Zone Scheduling On Two-Lane Highways With Managed Lanes, Ahmed Z. Edrees

Dissertations

Roadway maintenance projects greatly influence the roadway capacity, resulting in potential traffic disturbances captured by delays. Additionally, costs associated with these projects tend to be exorbitantly extensive. Most agencies and planners try to find a solution that minimizes roadway maintenance costs, traffic delays, crash risks, and environmental impact.

Work zones on two-way two-lane roadway typically avoids high-demand periods. Lane-closure scenario is commonly used and converts the open lane into a phantom intersection, alternating two-direction movements on one lane with the help of a flagger or a temporary signal. Alternatively, using shoulders as temporarily managed lanes allows for simultaneous two-way movements …

Performance Of Co2-Cured Alkali-Activated Blast-Furnace Slag Incorporating Magnesium Oxide, Yubin Jun, Seong Ho Han, Jae Hong Kim

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This study investigated characteristics of alkali-activated slags incorporating magnesium oxide (MgO) subjected to CO₂ curing. The samples were prepared by adding 2%, 5%, and 10% MgO to the total binder mass. The mixture was activated with potassium hydroxide (KOH) and cured in a CO₂ incubator for 3 days. The compressive strength of the MgO-incorporated CO₂-cured alkali-activated slag was higher than that of the conventional alkali-activated slag at all ages up to 28 days. No reduction in the strength was observed over time. The enhanced strength was independent of MgO content. Combined X-ray diffraction with thermogravimetric analysis …