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2363 Uppsatser om Concrete structure - Sida 9 av 158

Byggnadstekniskt brandskydd på Bodens ridklubb: En jämförelse med LBK:s rekommendationer

Det är allt vanligare med 3D-projektering inom byggbranschen för att förbättra och effektivisera bland annat kollisionskontroll, ritningsframställning och mängdberäkningar. 3D-modellering har kommit långt i utvecklingen när det gäller husbyggnad men för mark & anläggningskonstruktion har utvecklingen varit begränsad. Jämfört med traditionella, tvådimensionella CAD-modeller är en tredimensionell CAD-modell uppbyggd på ett annorlunda sätt med objekt istället för ? linjer och streck?. Idag finns det många olika programvaror som erbjuder möjligheten att genomföra 3D-projektering.

Framtagning av handbok till Revit Structure

Revit Structure är ett nytt 3D-modellerings program i Autodesks serie med ritprogram, speciellt utvecklad för byggnadsinformationsmodellering (BIM). Revit bygger på att användaren själv laddar in och placerar ut standardprofiler som till exempel pelare, balkar och väggar. När standardprofilerna är placerade i 3D-modellen kan de enkelt redigeras och förändras för att uppfylla de specifika kraven för just det byggnadsprojektet.     Den här rapporten är särskilt framtagen för att underlätta en övergång mellan programmen AutoCad och Revit Structure. Med rapporten följer en handbok som ska fungera som en introduktionskurs av programmet för studenter och konstruktörer. Handboken börjar med att gå igenom programmets upplägg och layout.  Där efter följer handboken ett byggnadsprojekt från start till mål. Varefter successivt byggnaden växer fram får användaren kunskaper om de vanliga verktygen då fler element tillförs och sammanfogas.

Införande av mjuka golv för mjölkkor : en fallstudie

Soft rubber flooring have gained in popularity over the last years. Rubber flooring al-lows cow to move more freely without slipping and improves claw and leg health. The purpose of this study was to investigate the influence of a stepwise introduktion of soft flooring on cow`s placement in cow houses with robotic milking. A case study was carried out in a herd in northern Sweden with 41 cows. Observations were made every 15 minutes between 09.00 and 16.00 concering cow placement in cu-bicles, in cubicle alley, in feeding alley and in feeding alley with the head through feed-ing gate. One observation period was carried out per flooring alternativ: 1) all concrete slatted floor, 2) rubber slatted floor in feeding alley and concrete slatted floor in cubicle alley and 3) rubber slatted floors in feeding alley and solid rubber floors in cubicle alley. The study showed that 6 %-units fewer cows lay in the cubicles when the feeding alley surface was slatted rubber.

Programmeringsstruktur med dyslektiskt tänkande

During the period of this project I have programed a web site in php4, and also built the database in MySQL. The purpose with the projekt is to create a common web site for the various activities in the different churches located in the area of Örnsköldsvik. In my project I have chosen to try to find a structure of programming that fits my needs as a dyslexic. In the essay you can find a more thorough description of my procedure and the structure that I have chosen to use. .

Fuktproblematik i platta på mark : En analys av uppkomsten till fuktproblem

When constructing a building, a number of aspects must be harmonized in order for it to fulfill requirements ? a building must fulfill requirements such a load-bearing, conservation of energy and a good indoor environment by means of, among other things, moisture proofing .Moisture problems in buildings can affect health negatively. As we are increasingly staying in indoors, demands on a good indoor environment are higher.This work starts with examining moisture problems in slab-on-ground solutions, and then links the various scenarios to moisture problems in a concrete slab of a real building. The building with moisture problems is located in Årby by in Borlänge and moisture damage was found in the slab at an apartment adjoining wall.By reviewing literature written within the field of moisture problem, making hand calculations and modeling in the program Comsol Multiphysics, judgments are made to find explanations as to why the rise of moisture occurred in the building in Årby by.Generally, the following guidelines may be used to reduce the risk of moisture problems in slab-on-ground constructions:Drying of construction moisture before laying the floor material.Using draining layer beneath the slab, to prevent capillary suction.Using insulation under the slab, partly for comfort and to establish the temperature difference between the ground and the concrete slab.Avoid direct contact between the wood and concrete, due to degradation and fouling smells that normally occurs.If necessary, use additional vapor barrier.In addition to the above, there are various methods for moisture-proof and moisture-monitoring by design or by the method ByggaF suited for the entire construction process various events..

Vasakronan: Det bästa av två världar

Mergers and acquisitions are common phenomenon in today´s society in order to increase shareholder value. Two years ago a fusion of Sweden´s two largest companies in the industry of real estate took place and even though three out of four mergers and acquisitions financially fail this certain case turned out highly successful. The aim of this thesis is to examine how the organizational structure and the management control have been designed and characterized the organizational performance and furthermore what are the success factors of the integration. By studying an acquisition and its potential effects on organizational structure and management control parallel to a model that describes the best practice guidelines for managers to successfully deliver value from their acquisitions, it can be shown that an acquisition has direct effects both on the acquirer and the acquired company and thus the new organizational structure. The main results, thus, is that through active leadership, increased specialization, and more decentralized and thus efficient management control a new organization has emerged consisting of the best features of two separate worlds..

Snedställningskrafters påverkan på prefabricerade pelar-balk stommar

The aim of this thesis was to investigate if the robotized welding method FSW (Friction Stir Welding) could be applied for joining a rotating structure in an aero engine at Volvo Aero Corporation. FSW is expected to introduce less defects than today?s welding methods and could therefore be suitable for critical aero components. The material is the nickel based alloy Inconel 718, however a material experimentation is outside the scope of this report.The main goal of this study is to verify if the ESAB ROSIO robot based FSW-system has a suitable work space to be able to weld the rotating structure, and if the welding tool has accessibility to the joints. The FSW-process needs a rigid fixture, and a number of fix-ture concepts are presented based on a proposed weld sequence.

New public management och den svenska gymnasieskolan : En ideologikritisk analys av Gy11-reformen kopplat till organisationskonceptet new public management

The purpose of this ideology critical study is to investigate the hidden content in the reform Gy11 and compare it with the concept new public management. After the clarification of the hidden content, we compare the structure of the organization in Swedish high schools with the structure in public sector called new public management. The main questions of this study are the following: Is it possible to see the foundation of new public management in the Swedish high schools when it comes to the views of knowledge and the formation of goals? Which similarities can we find when we look at the organization new public management and the Swedish high school?The result showed many similarities, both regarding the views of knowledge and the formations of goals. The structure of new public management has been largely implemented in the Swedish high schools and the schools now focus more on instrumental knowledge rather than universal knowledge based on understanding.This is not surprising due to the social progress.

Redesign av en hemsida : Med sökmotoroptimering och användbarhet i fokus

This paper describes the redesign of a site (Kolonn.se). Some of the problems with the site were a lack of structure and a design that was unclear both visitor and search engines. The site now has a new design and structure that has been taking form in Axure prototypes that has been tested and applied into WordPress. The results are a site with a new main menu, new graphic profile and logo. Also SEO-adapted content such as correctly structured headers, meta tags, descriptions and key words that has been implemented in the content.

Grönskan i Staden : grönstrukturens utveckling, funktioner & innehåll

The report by Boverket (2004), Hållbara städer och tätorter i Sverige - ett förslag till strategi says that large and somewhat intact green areas are better than severalsmall. Linking rural natural areas with the city's green areas, improves the opportunities for recreation and biodiversity (Boverket 2004). To create this, there isneed for a green structure in the city and its surroundings. But how to create this structure and what are the problems with the green areas in the city today? Thescenario that more and more people choose to settle in urban areas is a trend which not appears to decline, and at the same time our green spaces in cities and ruralareas decreases (Boverket 2007).

Ett kandidatexamensarbete inom lättviktskonstruktioner .

Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.

Inhysningssystem för växande ungtjurar

The purpose of this study was, if possible, to find a housing system for growing bulls that was as optimal as possible for the animal welfare. In order to select housing systems you must take into account the size of the group, body weight and the type of floor. Seven of the international most common housing systems were compared, straw bedding, deep straw bedding, sliding straw bedding, concrete slatted floor, rubber coated slatted floor, cubicles and feeding cubicles. Studies that have examined the proportion of tail, claw and leg injuries and the presence of unnatural behavior in the different systems. In summary, all studies showed that soft underlay were beneficial for the animals in terms of the proportion of bone lesions and swellings.

Bubblor och kapitalstruktur : Förändringar i kapitalstruktur i samband med bubbelsituationer.

Financial bubbles are characterized by a large increase in the economic growth on the market as a whole or in specific industries. The change gives rise to an increase in the capital needed to finance this growth. Companies typically have a choice between equity and debt capital to finance its business and the mix of these types of capital is often referred to as the company?s capital structure. There has been a lot of research done in the field of financial bubbles and ofcapital structure, as of yet no studies seem to address these two areas in combination.The aim of this study is to examine if financial bubbles affect a company?s capital structure and through this also examine if the supposed changes in capital structure can be generalized.The study comprise of two identical time-series which examines the changes in leverage and the choice of financing during the Swedish real estate bubble in the early nineties and the IT-crash at the end of the 2000th century.

Eurokoder : en jämförelse mot BKR

In Sweden there are currently two separate guidelines you may use whenperforming calculations on frameworks, BKR and the Eurocodes. Although at theend of 2010 you are not allowed to use BKR any longer and only the Eurocodeswill be viable. The aim of this thesis is to explain how the Eurocodes and EKS work and alsohow they compare to the current guideline BKR. Similarities and differencesbetween these guidelines are also discussed so that the reader will get a betterunderstanding of how the Eurocodes are applied. The areas discussed are asfollows:Principles and adviceSafety ClassesSymbols and IndexesLifespanLoads and partial coefficientThe thesis also deals with the impact that this transition into a new guideline willhave on corporations, guideline costs, education and computer software. As anexample a rough estimate on what costs this transition will create on a companywith 20 employees is also included. Calculations have been performed in order to investigate how the design valuesdiffer between the two guidelines, the Eurocodes and BKR.

Bubblor och kapitalstruktur : Förändringar i kapitalstruktur i samband med bubbelsituationer.

Financial bubbles are characterized by a large increase in the economic growth on the market as a whole or in specific industries. The change gives rise to an increase in the capital needed to finance this growth. Companies typically have a choice between equity and debt capital to finance its business and the mix of these types of capital is often referred to as the company?s capital structure. There has been a lot of research done in the field of financial bubbles and ofcapital structure, as of yet no studies seem to address these two areas in combination.The aim of this study is to examine if financial bubbles affect a company?s capital structure and through this also examine if the supposed changes in capital structure can be generalized.The study comprise of two identical time-series which examines the changes in leverage and the choice of financing during the Swedish real estate bubble in the early nineties and the IT-crash at the end of the 2000th century.

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