Construction Engineering Commons^™

Building Services Engineering September/October 2022

Building Services Engineering

No abstract provided.

Critical Evaluation Of Time And Cost Of Terrestrial Laser Scanning For Construction Automated Qa Analysis, Joao Rocha, Davitt Lamon

Capstone Reports

Many governments agencies and private owners are demanding up-to-date information related to the current conditions of their facilities. Conventional QA is time-consuming and inefficient; thus, 3D terrestrial laser scanning (TLS) technology has been adopted due to the fast speed and high accuracy in acquiring data. Automated QA analysis can reduce the labour and time needed, reduce the costs, and improve the overall project efficiency. However, very few research efforts have been made to study the benefits of the automated QA analysis in a quantitative way. The process of the TLS-based geometric QA based in an automated data analysis process is …

Residents’ Satisfaction With Apartment Living In Kuwait: A Study Of The Design Of Jaber Al Ahmad Apartments, Fawzi Alzamil, Qutaiba E. Al-Shaheen

Emirates Journal for Engineering Research

This study examines public housing in Kuwait and Jaber Al Ahmad apartments housing project. It tries to figure out how housing provision, citizen expectations, and satisfaction are linked.

Kuwait's government provide housing for Kuwaiti married couples as part of a welfare program. This goal has proven difficult to achieve, with a waiting list of over 100,000 people. While the majority of applicants apply for a residential plot and a housing loan to build a single-family home, a small number of candidates apply for the apartment unit’s alternative.

The government's capacity to reduce housing demand hinges on its ability to persuade …

Corrosion Performance Of Embedded Steel Bar In Cl--Contaminated Limestone Calcined Clay Cement (Lc3) At Initial Stage Of Hydration, Weiwen Li, Zuhua Xu, Yaocheng Wang, Xin Wang, Feng Xing

International Conference on Durability of Concrete Structures

Limestone Calcined Clay Cement (LC3) presents brilliant properties in binding Cl^- so that the embedded steel bars are probably protected in Cl^--contaminated condition, which meets the need of sea sand application. However, the corrosion performance of steel bars embedded in LC3 paste with Cl^‑ is unclear, especially in early age hydration. Thus, a series of experiments were carried out to evaluate the corrosion performance of steel bars on initial and hardened stages of hydration, including concentration of OH^- and Cl^- in real pore solution, open circuit potential (OCP) and chemical elements of steel bars. …

The Effect Of Initial Water Saturation On Freeze-Thaw Damage Of Submerged Mortar Materials, Siyuan Chen, Huigang Xiao

International Conference on Durability of Concrete Structures

An indispensable condition for the occurrence of the freeze-thaw (F-T) damage in unsaturated cement-based materials is that the specimens absorb water during the F-T process and reach a critical level of water saturation, which is influenced by the initial degree of water saturation (IDWS). However, the fast-freeze method commonly used in the laboratory does not reflect the effect of the IDWS on F-T damage. Thus, this study investigated the effect of different IDWS on the development of F-T damage in specimens to fill the gap in this research area. In this study, compressive strength tests were used to characterize the …

Building Services Engineering July/August 2022

Building Services Engineering

No abstract provided.

“Top Trends And Challenges Of Digital Technologies To Enhance The Efficiency Of Building Thermal Insulation And The Reality Of Its Application In Riyadh, Saudi Arabia”, Abrar Nasser Hamdi, Ahmed Omar M.S. Mostafa

Emirates Journal for Engineering Research

تشكل التقنيات الرقمية إحدى أهم مظاهر التقدم الحضاري في القرن الحادي والعشرين والتي اثرت بشكل كبير علـى النتاج المعماري تصميماً وانشاءً سواء على مستوى تقنيات المواد، أو تقنيات التطبيقات الرقمية أو تقنيات الأجهزة الإلكترونية الرقمية التي تساعد في تحسين أداء المباني عموماً ورفع كفاءة أداء العزل الحراري على وجه الخصوص. وعلى الرغم من انتشار تطبيق تقنيات مواد البناء في العديد من المجالات التي ترتبط بالعزل الحراري الى جانب تطبيقها وقياس ادائها باستخدام بالتقنيات الرقمية في أغلب الدول المتقدمة، الا انها لم تصل الى المستوى المأمول في السوق المحلي بالمملكة وهو ما يمثل إشكالية البحث الرئيسية. ويهدف البحث إلى استكشاف أهم …

Center For Centering: Analysis Of A Modular Timber Dome, Lucas J. Brown

Architectural Engineering

Analysis of a modular timber dome with focus on inductive, sensory, social, and environmental aspects.

Skip The Grid: Installation Of Solar Powered Refrigeration In The Navajo Nation, Connor T. Avrit

Construction Management

The Skip the Grid project was a project completed with the joint efforts of California Polytechnic State University, San Luis Obispo (Cal Poly) and many other company sponsors including Solv Energy, Dometic, Goal Zero and Heart of America a nonprofit. Skip the Grid’s project goal and outcomes was to improve the quality of life and provide clean sustainable off grid energy to families within the Navajo Nation. The Navajo Nation is located in the Four Corners region of the United States with approximately a third of its residents without the means or circumstances to be tied into grid level power. …

Shabang Music Festival Seating, Carter L. Norton

Construction Management

This outlines the process of the building and installation of four shaded seating areas at the SHABANG Music Festival located at Laguna Lake Park in San Luis Obispo. This paper places an emphasis on the pre-construction elements of the building stage. SHABANG Music Group rented out a section of Laguna Lake Park to host a music festival designed to bring the San Luis Obispo community together. The goal of the project discussed was to build a raised VIP seating area facing the main stage on which music lovers could relax while still being able to enjoy an unobstructed view of …

Caed Hasslein Student Competition, Greta R. Stout

Construction Management

This paper outlines the development of the first CAED Hasslein Student Competition at Cal Poly, SLO. The College of Architecture and Environmental Design at Cal Poly, SLO has not yet been successful in creating a platform to engage students of all five majors to collaborate in an educational atmosphere. This project aims to challenge students to work in teams made up of all five disciplines in a Request for Proposal-style competition. This paper focuses on how the idea of this competition came to be and the steps that were taken to successfully write the competition problem statement. These steps included …

Alternative Redistribution Of Residential Solar Energy, David T. Holmes

Construction Management

The use of solar panels on residential structures has been prevalent since the mid 1970’s and over the decades their presence has become more pronounced and more valued. The creation of energy on-site using clean methods for an individual is truly a remarkable feat. As solar panels become increasingly common, so do the inherent issues and their supporting infrastructure. Of these issues a common inconvenience is what owners are to do with extraneous energy. What this entails is that an owner typically does not have means to store energy that is created in surplus, the resulting solution is the power …

An Analysis Of Construction Estimating Software, Guilianna M. Lozano

Construction Management

There are various components that go into building a construction project. And regardless of the size of the project, construction projects have become increasingly expensive with cost escalations on the rise. The cost element of each construction project is critical to the success of the overall project. In today’s current industry, numerous resources are available that strive to assist the built environment with managing construction costs. Currently, construction firms are maintaining a competitive edge by using the technology that has been made available. The basis of this research, conducted using a quantitative survey, was to provide data that indicated which …

The Site Logistics Design Of The Shabang Slo 2022 Vip Stage, Natalie J. Hodgson

Construction Management

The objective of this project is to take some of the burden off the SHABANG Music Festival organizers and create a detailed plan on how the VIP section of the festival is going to be organized. The SHABANG music festival is an annual, local weekend event for the community of San Luis Obispo. The goal of this project is to create a plan that will be effectively utilized at this year's SHABANG festival. In working toward this goal, every aspect of the Construction Management curriculum that has been taught in our careers thus far will be utilized. For the Construction …

A Review Of Current Construction Guidelines To Inform The Design Of Rammed Earth Houses In Seismically Active Zones, David Thompson, Charles Augarde, Juan Pablo Osorio

Articles

Sustainability in the materials we use for construction is a prime concern, focusing on reducing the embodied energy and carbon footprints of the materials used. The cement used in concrete products is responsible for a significant proportion of Man's CO2 emissions and its production requires substantial energy input, as do fired clay products. For this reason, products formed from unfired earthen materials are of increasing interest and the current challenges include devising means of robust design for strength and to address durability concerns. One form of earthen construction that employs an in-situ method is rammed earth, and it is a …

Building Services Engineering May/June 2022

Building Services Engineering

No abstract provided.

Intelligibility Of Medically Related Sentences In Quiet, Speech-Shaped Noise, And Hospital Noise, Tessa Bent, Melissa Baese-Berk, Erica E. Ryherd, Sidney Perry

Durham School of Architectural Engineering and Construction: Faculty Publications

Noise in healthcare settings, such as hospitals, often exceeds levels recommended by health organizations. Although researchers and medical professionals have raised concerns about the effect of these noise levels on spoken communication, objective measures of behavioral intelligibility in hospital noise are lacking. Further, no studies of intelligibility in hospital noise used medically relevant terminology, which may differentially impact intelligibility compared to standard terminology in speech perception research and is essential for ensuring ecological validity. Here, intelligibility was measured using online testing for 69 young adult listeners in three listening conditions (i.e., quiet, speech-shaped noise, and hospital noise: 23 listeners per …

Plastic Bottles In Architecture: A How To Guide On Life-Cycle Through Reuse, Crystallyne Landram

Architecture Undergraduate Honors Theses

This booklet is a collection of 6 case studies that utilize reused plastic bottles significantly within their design. Prior to working with the case studies, much time was dedicated to research that justified the need for such a project. In-depth research on the environmental crisis, waste management trends, stewardship, sustainability, and ethics was conducted and recorded in the introduction to contextualize the need for an accessible how-to guide such as this one. Time was also given to establishing background information on bottles, reprocessing, and architecture to elaborate further on each piece of the content matter. It is curated as a …

Electrochromic Windows: Return On Investment Analysis, Thomas Michael Caprio

Construction Management

In recent years, sustainability in construction has become a topic of undeniable interest. With sustainability certifications becoming more prominent and desirable, members of the construction industry have begun to seek alternatives for standard systems to keep up with market trends. One of the main issues that the construction industry faces is accessibility of technology. While there are new products and technologies being released frequently, members of the construction industry lack knowledge on the specific details and implications of working with newer systems. One piece of technology that was recently introduced is electrochromic glass, or smart glass. Electrochromic windows analyze sunlight …

Neuromorphic Computing Using Electrostatic Mems Devices, Fadi Alsaleem

Durham School of Architectural Engineering and Construction: Faculty Publications

A continuous - time recurrent neural network ( CTRNN ) is described that exploits the nonlinear dynamics of micro electro - mechanical system ( MEMS ) devices to model a neuron in accordance with a neuron rate model that is the basis for dynamic field theory . Each MEMS device in the CTRNN is configured to simulate a neuron population by exploiting the characteristics of bi - stability and hysteresis inherent in certain MEMS device structures . In an embodiment , the MEMS device is a microbeam or cantilevered microbeam device that is excited with an alternating current ( AC …