<p dir="ltr">This thesis presents the results of the study performed on the behavior of bolted splice</p><p dir="ltr">connections for Concrete Filled Composite Plate Shear Walls. As a part of an experimental</p><p dir="ltr">program, two large-scale specimens employing two different types of fasteners: (i) Hollo-Bolt</p><p dir="ltr">blind bolts, and (ii) threaded rods with pipe sleeves were designed, built, and tested at the Bowen</p><p dir="ltr">Laboratory. The specimens were subjected to monotonic loading to examine the behavior and</p><p dir="ltr">capacity of the proposed connection types. From the results obtained in the experiments it could</p><p dir="ltr">be suggested that the proposed connections are an effective method to connect C-PSW/CFs and</p><p dir="ltr">could be a valuable alternative to Complete Joint Penetration (CJP) welding.</p>

Design control is a relevant concept for any age and any context of urban development by use of many varying tools from highly prescriptive ones to flexible guidance in order to control design of urban space and places. Production of clear definitions and types for the tools is critical for effective use of the design tools to guide and code the urban design. Distinctive parameters for the definitions and types of the design control tools are scale of intervention, level of prescription and contents and component of the tool. In this thesis, design control tools including design guides, briefs, frameworks and design codes are analysed in terms of this parameters, in order to reach the aim of the thesis which is building taxonomy of design control tools and taxonomy of their contents and components by analysing contemporary design control tools.

Passive ventilation and cooling systems can offer energy savings when combined into a mechanical ventilation and cooling strategy for office buildings. At early design stages, it is difficult to predict actual energy savings as current design and calculation tools are limited and do not allow assessment for energy reductions when attempting to use typical passive options such as solar chimneys, rain screen facades, ventilated double facades, passive downdraught evaporative cooling and earth ducts. The only passive systems that are directly incumbent to dynamic thermal modelling software are natural ventilation and external solar shading. Currently, impacts of passive systems on annual building energy performance is unclear and lacks clarity. In hot climates, this is even more problematic as buildings need to endure higher external temperatures and solar irradiation. Understanding minimal energy performance reductions for each passive system can aid with design decisions regarding building ventilation and cooling strategies. The aim of this study is to investigate how existing passive ventilation and cooling system design and operational strategies can be improved to reduce mechanical ventilation and cooling energy consumption for commercial buildings in hot climates. Theoretical commercial building models are created using dynamic thermal simulation software to determine minimum mechanical ventilation and cooling energy values, which are verified against published bench marks, known as base case models. These base case models are simulated using weather data from four different hot climates (Egypt, Portugal, Kenya and Abu Dhabi). Impacts of passive system energy performance are afforded by using either dynamic thermal simulation or fundamental steady state analysis identifying approximate passive ventilation and cooling potentials for reducing mechanical energy. These percentage reductions are created based upon passive system parameters and weather data, using appropriate methodology. From these findings new simplified design guidelines, integration strategies and performance design tools are created including a new passive system energy assessment tool (PSEAT) using Microsoft Excel platform to ensure that a wider audience can be achieved in industry. The design guidance and integration strategies are developed and simplified to enable architects, building services engineers and alike, to apply with speed and accuracy influencing the design process and improve confidence in desired passive solution.

Geosynthetic Reinforced Soil (GRS) is a promising technology that can be implemented in walls, culverts, rock fall barriers, and bridge abutments. Its use in walls and abutments is similar to Mechanically Stabilized Earth Walls (MSEW) reinforced with geosynthetics. Both GRS and MSEW are reinforced soil technologies that use reinforcement to provide tensile capacity within soil masses. However, the soil theories behind each method and the design methodologies associated with GRS and MSEW technologies are quite different. Therefore, a study was undertaken to compare the required tensile strength predicted by these various reinforced soil design methodologies. For the purposes of this study, the required ultimate tensile strength was defined as the ultimate tensile strength needed in the reinforcement after all applicable factors of safety, load factors, and reduction factors were applied. The investigation explored both MSEW and GRS. GRS has been made an FHWA "Every Day Counts" initiative. Due to the push to implement GRS technology, it is critical to understand how GRS design methods differs from classic MSEW design methods, specifically in the prediction of ultimate tensile strength required. A parametric study was performed comparing five different reinforced soil analysis methods. Two are current MSEW design methods and one was a proposed revision to an existing MSEW design method. The final two were GRS design methods. These design methods are among the most current and/or widely used design references in the United States regarding reinforced soil technology. There are significant differences between the methods in the governing soil theory particularly between GRS and MSEW design methods. The goal of the study was to understand which design parameters had the most influence on calculated values of the required ultimate tensile strength and nominal "unfactored" tensile strength. A base case was established and a reasonable set of parameter variations was determined. Two loading conditions were imposed, a roadway loading scenario and a bridge loading scenario. Based on parametric study findings, conclusions were drawn about which design parameters had the most influence for different design methods. Additionally, the difference in overall predicted required tensile strength was assessed between the various methods. Finally, the underlying soil theory and assumptions employed by the different methods and their influence on predicted required tensile strength values was interpreted. / Master of Science

This thesis presents a mechatronics master degree project held at Tritech TechnologyAB by two students from The Royal Institute of Technology (Stockholm, Sweden).It covers a study of the future agenda with IoT (Internet of Things) and the devel-opment of an evaluation framework for designing end devices in IoT systems. Thethesis also presents the leading technical solutions for IoT end devices and a toolfor choosing among available technologies. Lastly, the thesis reports from an in-depth study on power consumption and battery life-span of the two communicationtechniques BLE (Bluetooth Low Energy) and Thread.Data has been collected from literature studies by published authors, company pa-pers and from interviews with experts in the area. This data contributed to thefuture agenda prognosis, the generated evaluation framework and the collected tech-nical information. The attributes constituting the design guidance tool were statedbased on the evaluation framework. The in-depth study was carried out by runningthe two technologies on development boards where data on power consumption wascollected. The future prognosis of the IoT development was found to include 20-50 billiondevices by the year of 2020. The largest design areas appear to be within vehicleindustry, safety systems and home and city automation. Obstacles for the develop-ment seem to be a question about safety and how companies are to create a clearbusiness case out of it. Seven different subgroups of metrics were found constitutingto an evaluation framework and seven communication technologies with compatiblehardware form the basis for the developed design guide tool. In the in-depth study,data on power consumption for BLE and Thread were collected during a simple caseof sensing and transferring temperature data. / Denna avhandling presenterar ett examensarbete inom mekatronik gjort på TritechTechnology AB av två studenter från Kungliga Tekniska Högskolan (Stockholm,Sverige). Den omfattar en studie av den framtida prognosen för IoT (Internet ofThings) och utvecklingen av ett ramverk för de minsta enheterna i IoT-system.Avhandlingen presenterar också de ledande tekniska lösningarna för små IoT-enheteroch ett verktyg för att välja bland tillgänglig teknik. Slutligen rapporterar denockså från en mer djupgående studie av energiförbrukning för de två kommunika-tionsteknikerna BLE (Bluetooth Low Energy) och Thread.Data har samlats in från litteraturstudier av publicerade artiklar, företagsartiklaroch från intervjuer med experter inom området. Den informationen har bidragittill slutsatser kring framtiden med IoT, utvecklandet av ramverket och den samladetekniska informationen. Attributen som det utvecklade verktyget är baserat på kom-mer från ramverkets parametrar. Den fördjupade studien genomfördes genom attimplementera de två teknikerna på utvecklingskort där data om energiförbrukningsamlades in. Den framtida prognosen för Internet of Things befanns omfatta 20-50 miljarder en-heter år 2020. Fordonsindustrin, säkerhetssystem och hem -och stadsautomationverkar vara de mest populära områdena för utveckling. De största hindren förutvecklingen är en fråga om säkerhet och hur företag ska kunna skapa en tydligaffärsmodell inom området. Sju olika undergrupper av parametrar befanns utgöraramverket och sju kommunikationsteknik med kompatibel hårdvara ligger till grundför det designade verktyget. I den fördjupade studien samlades uppgifter om en-ergiförbrukningen för BLE och Thread in under ett enkelt fall av avläsning ochöverföring av temperaturdata.

Made available in DSpace on 2016-08-18T12:52:14Z (GMT). No. of bitstreams: 1 Dissertacao Rosendy Jess Fernandez Galabo.pdf: 13544833 bytes, checksum: bb584605237660d4dda102069ef5eb98 (MD5) Previous issue date: 2014-04-04 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The aim of this dissertation is to develop a design pattern language for television commerce that can support designers and developers to create applications with positive user experiences. The research is divided into three phases. In the first phase, it was performed an analysis in twelve existing t-commerce applications in order to identify the purchase process and the elements of graphical user interface used to do online shopping. In the next phase, three focus group sessions composed by 26 participants was performed in order to collect ideas and expectations resulted from anticipated use of application t-commerce for formulating hypotheses to be tested in the next phase. In the third phase, an experiment with 8 volunteers have been performed and it is consisted to show videos demonstrations with various solutions found in the previous phases and then gather their opinions to characterize each solution found. Also, at that phase, it was possible to define users profiles which will assist designers and developers alongside the design pattern language. The results obtained in these three phases were organized into a framework for design patterns that formats the results in a context, problem and solution. The pattern design framework allows helping designers and developers in the design of t-commerce application with improved user experiences. / A presente dissertação tem como objetivo desenvolver uma linguagem de padrões de design para comércio televisivo que auxilie designers e desenvolvedores na concepção de aplicativos com melhores experiências para o usuário. Para alcançar o objetivo da pesquisa, ela foi dividida em três fases. Na primeira fase, foi realizado um estudo analítico em doze aplicações existentes de comércio televisivo com objetivo de identificar o processo de compra realizado e os elementos das interfaces com os usuários utilizados para efetuar uma compra. Na fase seguinte, três sessões de grupo de foco compostos por 26 participantes foram realizados a fim de que fossem coletadas ideias e expectativas antes do uso de uma aplicação de comércio televisivo com o intuito de levantar hipóteses a serem testadas na etapa seguinte. Na terceira fase, um experimento foi realizado com 8 voluntários que consistiu em apresentar vídeos de demonstrações de uso com diversas soluções encontradas nas etapas anteriores, e então, coletar suas opiniões de forma a caracterizar cada solução encontrada. Nessa fase também foi possível definir perfis de usuários que poderão auxiliar os designers e desenvolvedores em conjunto com a linguagem de padrões de design. Os resultados obtidos nessas três fases foram organizados em um framework para padrões de design que formata os resultados obtidos nas três fases da pesquisa em um contexto, problema e solução. O uso de um formato de padrões de design possibilita designers e desenvolvedores a se orientarem na concepção de aplicativos de comércio televisivo com melhores experiências para usuários.