Dissertations / Theses on the topic 'Monolithic structural systems'

Le travail de cette thèse a pour objectif de développer un solveur dédié aux problèmes d'interaction fluide-structure (IFS), en particulier ceux rencontré en biologie, tels que la dynamique d'un écoulement sanguin à travers des tronçons veineux munis de valves. La circulation du sang est étudiée à l'aide de modèles pertinents sur les plans anatomique et physique. Le premier aspect des problèmes d'IFS concerne la gestion de la stabilité. Une formulation monolithique eulérienne basée sur la méthode des caractéristiques assure la stabilité inconditionnelle et introduit une approximation du premier ordre en temps avec deux modèles distincts de matériaux hyper élastiques. Le second aspect est relatif au contact entre deux parties du domaine solide, tel celui apparaissant entre deux valvules au cours de la fermeture de la valve et à l'état fermé sur un surface valvulaire relativement importante. Un algorithme de contact est proposé et validé à l'aide de tests de référence. L'étude computationnelle de l'écoulement sanguin à travers des tronçons veineux munis de valves est mené, une fois le solveur IFS vérifié et validé. Le domaine computationnel bidimensionnel est soit constitué d'une simple unité de base, soit du modèle de circuit veineux en forme d'échelle avec une veine superficielle et une profonde, communicant par une série de veines perforantes. Un maillage tridimensionnel de l'unité de base a été construit. Les simulations dans ce domaine tridimensionnel nécessite le recours au calcul haute performance. La dynamique de l'écoulement sanguin est fortement couplée à la mécanique de la paroi vasculaire. La paroi déformable des veines et artères de gros calibre est composée de trois couches principales (l'intima, la media, et l'adventitia) constituées de matériaux composites ayant une composition spécifique dans chaque couche. Dans ce travail, la rhéologie de la paroi est supposée être représentée par un matériau du type Mooney-Rivlin<br>The present work aims at developing a numerical solver for fluid-structure interaction (FSI) problems, especially those encountered in biology such as blood circulation in valved veins. Blood flow is investigated using anatomically and physically relevant models. The first aspect of FSI problems is related to management of algorithm stability. An Eulerian monolithic formulation based on the characteristic method unconditionally achieves stability and introduce a first order in time approximation with two distinct hyperelastic material models. The second aspect deals with between-solid domain contact such as that between valve leaflets during closure and in the closed state over a finite surface, which avoid vcusp tilting and back flow. A contact algorithm is proposed and validated using benchmarks. Computational study of blood flow in valved veins is investigated, once the solver was verified and validated. The 2D computational domain comprises a single basic unit or the ladder-like model of a deep and superficial veins communicating by a set of perforating veins. A 3D mesh of the basic unit was also built. Three-dimensional computation relies on high performance computing. Blood flow dynamics is strongly coupled to vessel wall mechanics. Deformable vascular walls of large veins and arteries are composed of three main layers (intima, media, and adventitia) that consist of composite material with a composition specific to each layer. In the present work, the wall rheology is assumed to be a Mooney-Rivlin material

The way the structure of systems and programs are designed is very important. When working with smaller groups of systems, the chosen architecture does not affect the performance and efficiency greatly, but as these systems increase in size and complexity, the choice of architecture becomes a very important one. Problems that can arise when the complexity of software scales up are waiting for data accesses, long sequential executions and potential loss of data. There is no single, optimal software architecture, as there are countless different ways to design programs, but it is interesting to look at which architectures perform the best in terms of execution time when handling multiple bigger systems and large amounts of data. In this thesis, a case called "The Income Deduction" will be implemented in a monolithic and an event-driven architectural style and then be put through three different scenarios. The monolithic architecture was chosen due to its simplicity and popularity when constructing simpler programs and systems, while the event-driven architecture was chosen due to its theoretical benefits of removing sequential communicating between systems and thus reduce the time systems spend waiting for each other to respond. The main research question to answer is what the main benefits and drawbacks are when building larger systems with an event-driven architectural style. Additional research questions include how the architecture affects the organisation’s efficiency and cooperation between different teams, as well as how the security of data is handled. The two implementations where put through three different scenarios within the case, measuring execution time, number of HTTP requests sent, database accesses and events emitted. The results show that the event-driven architecture performed 9.4% slower in the first scenario and 0.5% slower in the second scenario. In the third scenario the event-driven architecture performed 49.0% faster than the monolithic implementation, finishing the scenario in less than half the amount of time. The monolithic implementation generally performed well in the simpler scenarios 1 and 2, where the systems had fewer integrations to each other. In these cases it is the preferred solution since it is easier to design and implement. The event-driven solution did perform much better in the more complex scenario 3, where a lot of systems and integrations were involved, since it could remove certain connections between systems. Lastly, this thesis also discusses the sustainability and ethics of the study, as well as the limitations of the research and potential future work.<br>Strukturen som system och program designas efter är väldigt viktigt. När en arbetar med mindre grupper av system så kommer den valda arkitekturen inte att påverka prestandan mycket. Men när dessa system växter i storlek och komplexitet så kommer valet av arkitektur vara väldigt viktigt. Problem som kan uppstå när mjukvarukomplexiteten ökar är väntandet på dataaccesser, långa sekventiella exekveringar och potentiell förlust av data. Det finns ingen optimal mjukvaruarkitektur, det finns oräkneligt många sätt att designa program. Det är intressant att kolla på vilka arkitekturer som preseterar bäst sätt till exekveringstid när en hanterar ett flertal större system och stora mängder data. I den här avhandlingen kommer ett fall, kallat "Ingångsavdraget", att implementeras i en monolitisk och en event-driven arkitekturell stil och sedan köras igenom tre olika scenarion. Den monolitiska arkitekturen var vald på grund av dess enkelhet och populäritet vid utveckling av enklar program och system. Den event-drivna arkitekturen valdes på grund av vissa teoretiska fördelar, så som att kunna undvika sekventiell kommunikation mellan systemen och därmed reducera tiden som systemen väntar på svar från varandra. Den huvudsakliga forskningsfrågan som ska besvaras är vad de största fördelarna och nackdelarna är när man bygger större system med en event-driven arkitekturell stil. Andra forskningsfrågor inkludera hur arkitekturen påverkar effektiviteten hos en organisation och samarbetet mellan olika team, samt hur datasäkerheten hanteras. De två implementationerna sattes igång tre olika scenarion inom fallet, där exekveringstid, antal HTTP-anrop skickade, databasaccesser och event skickad mättes. Resultaten visar att den event-drivna arkitekturen presterade 9.4% långsamare i det första scenariot och 0.5% långsamare i det andra scenariot. I det tredje scenariot presterade den event-drivna lösningen 49.0% snabbare än den monolitiska lösningen och avslutade därmed scenariot under hälften av tiden. Den monolitiska implementationen presterade generellt väl under de simplare scenarion 1 och 2, där systemen hade färre integrationer till varandra. I dessa fallen så är den den föredragna lösningen eftersom det är lättare att designa och implementera. Den event-drivna lösningen presterade mycket bättre i det mer komplexa scenario 3, där många system och integrationer var inblandade, eftersom den kunde ta bort vissa kopplingar mellan system. Slutligen så diskuteras även hållbarhet och etik i studien, samt begränsningarna av forskningen och potentiellt framtida arbete.

The main topic of this thesis is the detailed design of new building in a secluded state administration buildings with a flat roof single shell. The building has two floors and no basement. Structural system used is brick. Vertical structures are made of Porotherm system and horizontal structures are made of monolithic reinforced concrete. The load is transferred to the monolithic strip foundation.

This master thesis deals with study of area, which is intended for construction of apartments building and public facilities. Four building are projected with visually connection by a covered parking place. There are three apartments building and one multifunctional building. The aim of this master thesis is elaboration of project documentation for the implementation of new multifunctional house in the area of the city Uherský Brod. In the first floor is designed café, which has its own entrance. In the second part of the floor is household equipment and utility room, which also has a separate entrance from outside. In the second to fourth floor is ten housing units of different sizes. The object is located on a gently sloping land in the northern part of Uherský Brod in the new city district called “Nad Zámkem”. Wall construction is designed from Porotherm elements. Ceiling construction is monolithic reinforced concrete. Roofing is solved by single-flat roof. The drawing part of this master thesis is processed in AutoCAD.

The subject of the diploma thesis is an architectural study of a velodrome in Brno Komárov. It is an indoor cycling track which is still missing in the Czech Republic. The whole site of the Hněvkovského sports complex in Komárov was elaborated within the architectural study. The aim of the proposal was to attract a wide range of visitors to the site, so not only buildings for sports were designed. But also two sets of buildings as a modular construction from containers providing premises for rent. The construction of the velodrome was deign as a combination of monolithic reinforced concrete and steel truss structure. The cladding is design from insulated panel system.

Thesis "Library Information Centre" is processed in the form of detailed project documentation containing all requirements in accordance with applicable standards and regulations. The proposed building is designed as a four-storey building shape of a rounded rectangular triangle with dimensions of 33.5 x 33.5 m, which is a full basement. The building is used for administration, services and information centers. In 1PP is located technical facilities, warehouses and supply. On the 1st floor there is space for services and administration. In the 2nd floor-3rd floor spaces are located Information Center. In the last nadzemím floor space technical background. The building is based on a baseplate. Used a support system is a combined structural system of walls and columns. The building is designed with an offset raster light curtain wall system complete with sun protection. The object is implemented to suit the requirements of the wheelchair. For the object will be set up areas for landscaping and furniture for visitors to the building. On the southwest side of the parking lot will be built with 39 stalls including 5 places for the disabled with a reduced pavement. In the Northeast will be built with 44 parking spaces for cars.

The thesis aims to project documentation stage for the execution of the project. It is an object of school for first and second grade. Documentation is prepared on the basis provided architectural studies. The building is situated on the flat, gently sloping land. The work consists of drawing and text documentation, evaluation of thermal, structural and acoustic and lighting requirements for construction, fire safety design of the building. The work includes specialized project on HVAC - heating namely, draft power and boiler room layout and design of concrete structures specialized namely design and dimensioning of cross continuous reinforced slab.

The diploma thesis solves a theater with a cafe in the town of Humpolec in the Vysočina Region. It contains complete documentation for execution, assessment in terms of fire safety and in terms of building physics. Furthermore, the proposal ventilation for cinema, foyer and cafe. There is a cinema and a cafe, which is located on the second floor. Cinema is designed with a capacity of 196 seats, of which 5 seats are reserved for people with limited mobility. Screening is provided as 2D mode and 3D projection. The café is designed for moviegoers and the general public. The café seats 36 seats. The building is designed as a two storey with dissected floor plan with rounded shapes with no sharp edges with a protruding portion of the roof of cinema, which is located on the north side of the building and has the function division of the building into individual units. The building has dimensions of 39.15 meters x 29.45 meters. The supporting structure of the building consists of reinforced concrete reinforced walls and ceilings. In the southern part of the building with rooms Foyer café is designed glass facade of the LOP. Supporting roof structure over the cinema hall is made up of wooden trusses joined punched punched plates.

The subject of the diploma thesis is to design a project study and a building program that would become a compromise between the requirements of the city of Brno and BUT in the area of Kraví hora in the Brno city center. The city of Brno would like to transform the area into a public park. But BUT considers it as its "family silver" because they realize its extraordinary value. Options of a constructions are really limited because of many area regulations. My proposal counts on the demolition of all existing buildings in the area, respects property area relations , protection zone, continuity with existing traffic roads, height regulation, imaginary raster of surrounding buildings, slope of terrain and orientation to the cardinal points. My suggest represents a study of five groups of objects which creating a rectangular raster. As a compromise solution, I chose the presentation and promotional areas of the individual faculties of BUT for the content of the buildings. Faculties have spaces for hobby groups for the public comprise all age groups included. I also designed the BUT Museum of History, a multimedia hall, a cafeteria, studios, a student leisure center and an observation tower with a climbing wall.

Dans la méthode de conception sûre et descendante CAPRI applicable aux circuits intégrés VLSI, on analyse les spécifications initiales à la définition de l'architecture du circuit. La méthode proposée est une méthode par affinements successifs de spécifications dans laquelle on distingue: 1) le choix des algorithmes; 2) le choix du chemin de données associé aux blocs fonctionnels; 3) le choix de la structure de la partie contrôle. Application de la démarche descendante au microordinateur 80 C48 d'INTEL en technologie CMOS

Master’s thesis deals with complete project documentation of newly built object of library and mediatheque located on the site in České Budějovice. It is a three-storey building divided into three parts, one-storey, two-storey and three-storey. It is partly basement. The underground part is devoted to main storage spaces of library services, management offices and social facilities for staff (toilets, changing rooms, washrooms). This part of the building has own entrance for employees. In the 1st floor is located the main library area along with exhibition spaces and the main entrance for visitors with self service cloakroom. In the 2nd floor are designed library spaces for visually impaired persons with fund of audio books, CDs and DVDs, a lecture hall with a projector and own kitchen and space for reading magazines and periodicals. From this floor is possible access to the outdoor terrace, which has own terrace furniture store nearby. In the 3rd floor is located a literary café with its own facilities. In each floor are also designed sanitary facilities for use by persons with limited ability of movement and orientation. All floors are connected by stairs and passenger lifts. In terms of construction, the building is designed as a frame, in the underground parts made of reinforced concrete, the overhead of glued laminated timber elements. The ceiling structure designed over the underground floor is monolithic reinforced concrete slab. The ceilings in the upper part are designed as a wooden beamed made of the glued laminated timber elements. The building has a pent roof created by wooden trusses assembled with punched metal plate fasteners. The foundations are designed as belts and footings. The study, detailed documentation, thermal-technical evaluation of selected structures and fire safety of the building are processed. For processing of the thesis were used software AutoCAD 2010, Teplo 2011, Area 2011, Ztráty 2011 and Fire NX 802 PRO.

博士<br>國立臺灣大學<br>工程科學及海洋工程學研究所<br>107<br>The present work aims at developing a numerical solver for fluid–structure interac- tion (FSI) problems, especially those encountered in biology such as blood circulation in valved veins. Blood flow is investigated using anatomically and physically relevant models. Computational procedures are conceived, designed, and implemented in a platform that couples the cheapest cost and the fastest processing using high-performance comput- ing. The first aspect of FSI problems is related to management of algorithm stability. An Eulerian monolithic formulation based on the characteristic method unconditionally achieves stability and introduce a first order in time approximation with two distinct hy- perelastic material models. The second aspect deals with between-solid domain contact such as that between valve leaflets during closure and in the closed state over a finite surface, which avoid vcusp tilting and back flow. A contact algorithm is proposed and validated using benchmarks. Computational study of blood flow in valved veins is investigated, once the solver was verified and validated. The 2D computational domain comprises a single basic unit or the ladder-like model of a deep and superficial veins communicating by a set of perforating veins. A 3D mesh of the basic unit was also built. Three-dimensional computation relies on high performance computing. Blood that contains cells and plasma is a priori a heterogeneous medium. However, it can be assumed homogeneous in large blood vessels, targets of the present study. Red blood capsules that represent the vast majority of blood cells (97%) can deform and aggregate, influencing blood rheology. However, in large veins, in the absence of stagnant flow regions, blood behaves as a Newtonian fluid. Blood flow dynamics is strongly coupled to vessel wall mechanics. Deformable vascular walls of large veins and arteries are composed of three main layers (intima, media, and adventitia) that consist of composite material with a composition specific to each layer. In the present work, the wall rheology is assumed to be a Mooney–Rivlin material.