Research On Rc-Uhpc Composite Slab Frame Culvert Technology In Wave-Affected Areas,
2025
Fujian Communications Planning & Design Institute Co ., Ltd., Fuzhou , Fujian 350000 , China ;Research and Development Center of Transport Industry of New Materials , Technologies Application for Highway Construction and Maintenance of Offshore Areas , Fuzhou , Fujian 350000 , China
Research On Rc-Uhpc Composite Slab Frame Culvert Technology In Wave-Affected Areas, Qiu Junfeng
Journal of China & Foreign Highway
To address the problems in the construction of offshore bridges and culverts such as the structures susceptible to waves,limited layout,and high cost of soft foundation treatment,this paper proposed a new technical solution for reinforced concrete and ultra-high performance concrete (RC-UHPC ) composite slab frame culverts.With supporting engineering,the ordinary box culvert was selected as a comparison scheme for technical and economic analysis,and the design points and construction procedures of new structures were introduced.Based on the calculation results of the overall bearing force,the bearing performance of the top slab under different load conditions was analyzed,along with an investigation of the secondary internal …
Inverse Analysis Of Thermal Parameters Of Concrete Box Girder Based On De-Bp Neural Network,
2025
China National Chemical Construction Investment Co ., Ltd., Beijing 102308 , China
Inverse Analysis Of Thermal Parameters Of Concrete Box Girder Based On De-Bp Neural Network, Yao Yong, Yan Yu, Sun Bo Wen, Wang Yuesong, Jiang Tianyong
Journal of China & Foreign Highway
In view of temperature cracks in concrete box girders easily occurring during construction,an inverse analysis method based on uniform design theory and differential evolution back propagation (DE-BP ) neural network was proposed to accurately obtain the thermal parameters of concrete box girders and ensure the reliability of temperature analysis of concrete box girders.This method established the nonlinear relationship between the temperature peak of characteristic points and the thermal parameters through the DE-BP neural network.By using the uniform design method and the Abaqus finite element numerical model,130 sets of sample data were generated.Based on the ratio of 12∶1 for training samples …
Field Test Research On Optimization Of Smooth Blasting Parameters Based On Drilling Speed,
2025
CCCC Central-South Engineering Company Ltd ., Changsha , Hunan 410000 , China
Field Test Research On Optimization Of Smooth Blasting Parameters Based On Drilling Speed, Wang Haitao, Lu Jianghua, Liu Yang, Huang Mingli, Wu Xuan
Journal of China & Foreign Highway
This study aims to address poor adaptability and timeliness in the design of smooth blasting hole parameters in t he past.With the drilling and blasting method-based construction of large cross-section tunnels in Botanggou and Tielugou along the Zunhua‒Qinhuangdao Expressway as the research background and Ⅲ and Ⅳ grade surrounding rocks of porphyritic granite as the research object,statistical regression analysis and theoretical derivation were conducted on the measured data during on-site drilling according to the rock solidity coefficient.Based on this,a simple parameter design method for a smooth blasting layer based on the drilling speed index of an air leg anchor rod …
Distribution Characteristics Of Internal Distress And Maintenance Decision-Making For Asphalt Pavement Based On Three-Dimensional Ground-Penetrating Radar,
2025
School of Traffic & Logistics Engineering , Xinjiang Agricultural University , Urumqi , Xinjiang 830091 , China
Distribution Characteristics Of Internal Distress And Maintenance Decision-Making For Asphalt Pavement Based On Three-Dimensional Ground-Penetrating Radar, Li Xiaohua, Song Liang, Ye Wei, Xie Xiaodong, Yang Jiangang, Gao Jie
Journal of China & Foreign Highway
The distribution characteristics of internal distress in pavement structures and the corresponding maintenance decisions are crucial for improving road performance and extending service life.Based on three-dimensional ground-penetrating radar (3D GPR ) technology,this study investigated the internal distress of a 12-kilometer section of both driving and overtaking lanes of an expressway in Hubei Province.High-resolution images of internal pavement distress were obtained,and milling maintenance decisions were optimized by employing these images and a modular decision-making model.Through an efficient and non-destructive technique,the distribution characteristics of internal pavement distress were analyzed,and potential distress types were identified,providing a scientific basis for maintenance decision-making.Data analysis revealed …
Integrated Decision Support System For Optimizing Time And Cost Trade Offs In Linear Repetitive Construction Projects,
2025
The British University in Egypt
Integrated Decision Support System For Optimizing Time And Cost Trade Offs In Linear Repetitive Construction Projects, Ahmed Gouda Mohamed
Civil Engineering
time and cost performance. Traditional scheduling techniques often struggle to effectively address these complexities. This paper aims to enhance project optimization by introducing a metaheuristicbased Time-Cost Trade-off (TCT) framework specifically designed for repetitive project environments. Unlike previous studies that focus solely on single-algorithm applications, this research evaluates two metaheuristic optimization strategies—Genetic Algorithm (GA) and Particle Swarm Optimization (PSO)—within a consistent problem setting. The framework employs both algorithms, which are independently assessed for their effectiveness in tackling the Linear Repetitive Project Time-Cost Trade-off (LRPTCT) problem. The methodology utilizes task decomposition alongside the Line of Balance (LOB) scheduling technique, facilitating a more …
Practicality Of Implementing Sub-Clause 8.4 [Advance Warning] Of The Fidic 2017 Red Book In Egypt,
2025
American University in Cairo
Practicality Of Implementing Sub-Clause 8.4 [Advance Warning] Of The Fidic 2017 Red Book In Egypt, Gehad Ibrahim
Theses and Dissertations
Disputes in construction projects can cause cost and time overruns that can be detrimental to the parties involved and to the project. Several measures have been advocated by the industry’s practitioners in an attempt to avoid disputes and their adverse impacts. One of these measures is the introduction of advance warning sub-clauses in construction contracts, where the contracting parties play a proactive and collaborative role in warning each other of potential adverse impacts to the project. Such clauses have been in the NEC suite of standard construction contracts for decades and have recently found their way to the 2017 edition …
Investigating The Properties Of Eco-Bricks Composed Of Sawdust, Bamboo, And Varying Composition Of Sugarcane Bagasse Ash And Portland Cement,
2025
De La Salle Santiago Zobel School
Investigating The Properties Of Eco-Bricks Composed Of Sawdust, Bamboo, And Varying Composition Of Sugarcane Bagasse Ash And Portland Cement, Wilfred Victor C. Marasigan, Julia Sophia Antonia S. Encarnacion, Czyrus Michael A. Bajeta, Alijah F. Gonzales, Juan Carlo T. Gumangan
Sinaya: A Philippine Journal for Senior High School Teachers and Students
With the construction industry contributing nearly 40% of global greenhouse gas emissions, there is a growing need for innovative and sustainable building materials. This research investigates a new eco-friendly concrete brick incorporating sugarcane bagasse ash (SCBA), sawdust, and bamboo fibers. Three eco-brick mixtures, each containing 2% bamboo fiber and 10% sawdust by weight but with varying proportions of Portland cement (PC) and SCBA, were tested against a standard brick for compressive strength, flexural strength, and water absorption. The optimal mixture, with 2% bamboo fiber by weight, 10% sawdust by weight, 85% PC, and 15% SCBA, exhibits compressive and flexural strength …
An Llm Approach For Automating The Analysis Of Bim (Ifc) Data,
2025
American University in Cairo
An Llm Approach For Automating The Analysis Of Bim (Ifc) Data, Miral Selim
Theses and Dissertations
This thesis introduces a novel methodology for automating the analysis of Building Information Modeling (BIM) data using LangGraph, an advanced extension of the LangChain framework, and integrating Google’s Gemini Large Language Model (LLM) with IfcOpenShell. BIM, and specifically Industry Foundation Class (IFC) files, are widely used in the construction industry for representing and managing building data. However, analyzing this data effectively remains a significant challenge due to its volume and complexity. Additionally, analyzing BIM data typically requires knowledge of different BIM software depending on the application. This research addresses this challenge by creating a workflow that utilizes LangGraph’s ability to …
Optimization Of Pile Construction Sequence Using Cfa Machines,
2025
The American University in Cairo AUC
Optimization Of Pile Construction Sequence Using Cfa Machines, Omar Wael Ammar
Theses and Dissertations
In most construction projects with deep foundations, piling activities are critical to the project schedule and often fall on the critical path. The piling construction process requires a diverse range of resources, including equipment, materials, and skilful labour. Without carefully planning the construction process according to installation standards, there is a significant risk of time and cost overruns. These overruns are caused by inefficiencies such as equipment idle or lost time due to required lags between closely spaced piles. Therefore, it is essential to develop an optimized construction sequence to minimize these risks and enhance overall project efficiency. The primary …
Exploring Sustainable Practices In Educational Buildings During The Project Lifecycle In Egypt,
2025
Future university in egypt
Exploring Sustainable Practices In Educational Buildings During The Project Lifecycle In Egypt, Abdallah Awny, Youssef A. Awad, Hosam Hegazy, Ibrahim Mahdi
Future Engineering Journal
Sustainable construction approaches are essential for mitigating environmental concerns and enhancing energy efficiency in educational facilities. This research examines sustainability solutions in Egyptian educational institutions, concentrating on the design, building, and operating stages. The study combines quantitative and qualitative assessments from a survey of 66 industry experts, evaluating essential sustainability criteria like energy efficiency, water conservation, material sustainability, and operating expenses. Statistical methods, such as the Relative Importance Index (RII) and correlation analysis, were used to assess the relevance and interrelations among sustainability factors. The findings reveal that energy efficiency (RII: 0.82) and the promotion of health and well-being (RII: …
Centralized, Decentralized And Hybrid Wastewater Management Approaches – Gap Study,
2025
Future University in Egypt
Centralized, Decentralized And Hybrid Wastewater Management Approaches – Gap Study, Zeyad Kadry, Ahmed M. Ebid Dr., Ibrahim Mahdi
Future Engineering Journal
This literature review highlights advancements in wastewater management, emphasizing hybrid systems that integrate centralized and decentralized approaches. It underscores the cost-effectiveness and scalability of decentralized wastewater management (DWWM) for small urban and rural areas, despite higher land and capital needs. Optimization frameworks utilizing advanced computational tools, such as genetic algorithms and GIS, have proven effective in reducing costs and enhancing resource recovery, with decision-support frameworks tailored for rural planning. The integration of synergistic technologies like vertical farming and photovoltaic energy enhances the sustainability and resilience of decentralized systems in urban contexts. Additionally, innovative treatment methods, including nano-disinfection and advanced coagulation, …
Study Of Capital And Operation Costs For Reverse Osmosis Desalination Plants,
2025
The American University in Cairo AUC
Study Of Capital And Operation Costs For Reverse Osmosis Desalination Plants, Habiba Mahdy Mohamed
Theses and Dissertations
Desalination is a progressively common solution to supply freshwater in numerous parts of the globe where this resource falls short. Among all desalination techniques, seawater reverse osmosis (SWRO) is the most globally prevalent technology. Evaluating a desalination technology's cost-effectiveness is essential to ensure a well-designed plant can be implemented successfully and within an acceptable budget. In the Egyptian context, where water scarcity heightens the urgency of effective resource allocation, economic indicators such as capital expenditure (CAPEX) and operational expenditure (OPEX) are pivotal in shaping policy and planning decisions. Adopting this integrated financial perspective ensures that desalination projects are not only …
Caed Shop Entrance Wall Redesign,
2025
California Polytechnic State University, San Luis Obispo
Caed Shop Entrance Wall Redesign, Ellen Elizabeth Untalan, Joelle Schalesky, Katherine Evalyn Timbes
Architectural Engineering: Graduate Reports
This project involved the replacement and redesign of the north wall at the CAED Support Shop at Cal Poly, San Luis Obispo. The redesign aligned the wall with the adjacent Engineering West building. The original concrete wall was designed with jagged recesses to accommodate large trash bins. These recesses no longer serve their intended function due to the permanent relocation of these bins. The replacement CMU low lift grouted wall optimizes courtyard space, enhances aesthetic cohesion, and maintains architectural features consistent with the existing structure. The following report outlines the process necessary to complete this project, including the permitting process, …
Thousand Hills Pet Resort Cat Condos Installation And Qa/Qc,
2025
California Polytechnic State University, San Luis Obispo
Thousand Hills Pet Resort Cat Condos Installation And Qa/Qc, Erik Anders Ruud
Construction Management
This paper discusses the installation and quality assurance/quality control of four cat condos built for the Son Care Foundation at the Thousand Hills Pet Resort in San Luis Obispo. The Son Care Foundation is a nonprofit that provides professional daycare and overnight boarding services for dogs and cats while their owners are away. The cat condos serve cats during the day while their owners are at work or otherwise busy. Because three people were assigned to this project, the project was split into preconstruction, prefabrication, and installation/QA/QC. To meet the two-day installation window, due to active facility use, three cat …
Exploring Who, Where, And When: A Mixed-Methods Analysis Of A New Study Abroad Program,
2025
California Polytechnic State University, San Luis Obispo
Exploring Who, Where, And When: A Mixed-Methods Analysis Of A New Study Abroad Program, Garrett Schoep, Elijah Duane Blake
Construction Management
Study abroad programs can have a significant impact on the lives of college students. These programs create opportunities for students to experience the world, while earning college credit. As Cal Poly is transitioning from the quarter system to the semester system, there is an increase demand for a new study abroad program that is tailored to students’ preferences. Understanding what students want from a study abroad program is extremely important. To better understand student preferences, a survey was created and distributed to Cal Poly students. The goal of the survey was to identify trends amongst students to get a better …
Preconstruction Management Of The Cat Condos Project At Thousand Hills Pet Resort,
2025
California Polytechnic State University, San Luis Obispo
Preconstruction Management Of The Cat Condos Project At Thousand Hills Pet Resort, Aeon Combs
Construction Management
This paper presents the preconstruction phases of the Cat Condos Project at the Thousand Hills Pet Resort, and the many challenges which were necessary to realize its completion. The Son Care Foundation is a nonprofit organization based in San Luis Obispo with many focuses such as outreach for veterans, prison rehabilitation, youth development, and other charitable pursuits. The Thousand Hills Pet Resort is a subsidiary of the Son Care Foundation which provides holistic boarding services to felines and canines alike, all the profits generated by the Thousand Hills Pet Resort are donated to sustain the Son Care Foundations’ charitable endeavors. …
Design And Playhouse Plan For Girls Build Summer Academy 2025,
2025
California Polytechnic State University, San Luis Obispo
Design And Playhouse Plan For Girls Build Summer Academy 2025, Aracely Berber
Construction Management
This project involves the development and execution of a week-long construction camp at Cal Poly aimed at introducing high school girls to the construction industry through the hands-on building of playhouses. This camp is coordinated by a professor in Cal Poly’s Construction Management Department and invites other industry professionals. The initiative not only promotes youth empowerment and gender diversity in the industry but also incorporates a strong educational and technical component. As part of the planning process, a detailed 3D model of the playhouse was created using Autodesk Revit to visualize the structure. Additionally, a materials list was created and …
Case Study On Using Soil Nails In Unstable Substrates,
2025
California Polytechnic State University, San Luis Obispo
Case Study On Using Soil Nails In Unstable Substrates, Joseph Hass
Construction Management
Soil nailing is becoming a popular method in construction projects to anchor retaining walls into soil. To maximize installation success rates and minimize pullout failure during testing, this case study examines efficient techniques and installation protocols for soil nails in unstable substrates through research and studying an active construction site utilizing soil nails. In geotechnical engineering, unstable soil conditions present serious difficulties that frequently result in delays, cost overruns, and compromised structural integrity. This study determines the main elements affecting nail performance by carefully examining field data, installation trials, and performance testing. Using real life experience and in-depth research of …
Renovations At The Ranch Slo,
2025
California Polytechnic State University, San Luis Obispo
Renovations At The Ranch Slo, Gerardo Valenciano-Valdivia
Construction Management
The Ranch SLO is a non-profit organization that hopes to aid adults with developmental disabilities by providing outdoor employment opportunities. In the ten-and-a-half-acre property, the employees engage in a variety of different activities, ranging from planting and growing different plants, to caring for farm animals. Some of the structures in the ranch have a long time in service and need reinforcing/renovations, this project focused on two main areas where renovations took place. The first area was a garden table area equipped with a total of 10 garden tables and a shade structure covering exactly half of the tables. The main …
Preconstruction Services For Land Conservancy San Luis Obispo Deck Replacement,
2025
California Polytechnic State University, San Luis Obispo
Preconstruction Services For Land Conservancy San Luis Obispo Deck Replacement, Russell Sprague
Construction Management
This senior project centers around a preconstruction collaboration between Semmes & Co. and the Land Conservancy of San Luis Obispo (LCSLO) for a new deck at the Santa Rita Ranch house in Templeton, CA. The existing deck was in poor condition and not ADA compliant, prompting the need for a safe, accessible, and aesthetically pleasing replacement. This project supported the nonprofit by providing volunteer-based preconstruction services, including quantity takeoffs, a detailed material list, scope breakdown, labor estimates, scheduling, and logistics planning. Material options and scope variations were presented to LCSLO in a flexible pricing proposal using a Time and Materials …
