Sökresultat:
11771 Uppsatser om Construction work - Sida 27 av 785
Förbättring av U-värde i träkonstruktion för fönster med Aerogel
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..
Etableringsbodar - köpa kontra hyra : Studie för NCC Construction Karlsta
Examensarbetet är gjort för NCC Construction AB i Karlstad, all indata är baserad på NCCs tidigare projekt i Värmland. De flesta byggentreprenörer hyr sina etableringsbodar med vetskapen om att det kostar mer än att investera i bodar, men utan studier på att det är lönsammare att köpa bodarna. Studien är gjord på Cramos energieffektiva bodar. Energiförbrukningen för produktion av en byggnad uppgår till 15 % av byggnadens livscykel, vilket leder till stora kostnader. En stor del av energin i produktionsskedet går till etableringsbodarna, undersökningar har gjorts på bodar för att få fram en energieffektiv bod och därmed har utgifterna på etableringarna minskat. Det finns ytterligare ett sätt att spara pengar på gällande etableringen och det är att äga sina etableringsbodar.
Ingenjörshandbok
Handbok.
Sjuksköterskans arbetstillfredsställelse och psykosociala arbetsmiljö inom psykiatrisk vård
To enjoy work, and be satisfied in the work you do, is important to most people. Work scientific research shows that dissatisfaction with physical or the psychosocial work environment often gives negative effects on the performed work. The purpose of our study is to chart the experience in work satisfaction and psychosocial work environment amongst nurses within psychiatric care. It is an empiric cross section study. The participants in the study contains nurses who are either employed on a conditional tenure or have a temporary post (>3 months) in policlinics and wards in general adult psychiatric care (n=126).
En studie av höghusbyggande med avseende på stomsystem och lastpåverkan
Vi har valt att undersöka vilka möjligheter och eventuella risker det finns att bygga högt i Stockholm. Undersökningen utgick på att jämföra olika byggtekniska lösningar för stomsystem. Hur tar stomsystemen hand om vertikala och horisontella laster? Vilket stomsystemen är lämpligast vid en viss höjd? Dessa är några av de frågor som besvaras i arbetet.De vertikala och horisontella lasterna är de faktorer som främst försvårar höghusbyggandet. Med en större belastning av laster ju högre det byggs måste stomsystemen dimensioneras med allt större noggrannhet för att lasterna ska nedföras till grundläggningen på ett säkert sätt.
Jämförelsestudie för tre olika metoder att beräkna genomstansning i betong : Skillnader i genomstansningskapacitet för metoderna i BBK04, EK2 och BHB
Before the European construction standards were introduced in January 2011, it was mainly themethod in BBK04 that was used for calculating punching capacity in concrete structures, and in lesscommon cases the method in BHB. The method of BBK04 is easy to use and have had the samestructure since the first was published in 1979. The Concrete handbook method (BHB) where usuallyonly used when a higher punching capacity was needed and the cross-sectional height where fixed,calculations using this method entails more work, but will in return usually give a higher capacity. Italso allows the use of shear reinforcement to increase the cross-section capacity. The method ofcalculating punching shear in EC2 differs largely from the methods of BBK04 and BHB.
Svensk-Rysk gradmätningsexpedition på Spetsbergen 1898-1914 : Ekonomiska överväganden och förändrade attityder med aspekt på åren 1898, 1902 och 1914
This study concerns the complete oeuvre by the British author Helen Zahavi: Dirty Weekend (1991), True Romance (1994), and Donna and the Fatman (1998). Her novels are here read as a trilogy dealing with the dialectics of gender and violence in 20th century discourse, drawing on theories of how the construction of subjects is produced by power, of the relation between power and sexuality.The heroines of Zahavi?s novels try their best to move about in a world where their freedom of movement is limited to their female identity. In Dirty Weekend the protagonist tries to shoot her way out, claiming revenge on every man that is forcing himself upon her. She gains some freedom of movement by refusing subordination, but does not really change the order of power.
Virkesgripen, ett geometriskt verktyg :
The aim of this study was to investigate and describe conceptions that been used when people talks about grapples and to put together parameters that the customers sees as important when they chose a grapple from Hultdins.
Every year Hultdins manufacturer and sells about 3500 grapples around the world. With so many users its difficult to oblige everyone. To get an apprehension of what kind of grapple the operators wanted a formula with 18 questions was made. For the interviews 20 forestmachineoperators were choicest who had experience from Hultdins grapples, a lot of them also had experience from other grappleproducers and constructions.
The study showed that it is the durability the users give priority to.
Projektrisk : en studie av svenska bygg- och anläggningsföretag
Background: Today businesses are largely structured in projects and temporary organizations. In many companies, the ability to pursue projects is decisive for the business efficiency and competitiveness. The risk literature do not discuss identification and handling ofproject risk in building- and construction companies to a large extent, which has led us to investigate how project risk can be treated and handled in Swedish building- and construction companies. Purpose: The purpose of this thesis is to cover and describe business risk in Swedish building- and construction projects with focus on different risks and risk tools, and also to modify a model for evaluating the business risk maturity. Realization: This thesis has both traces of a case study and a cross-section study and examines eight different companies that are active in the building- and construction business.
Brand Culture : Between consumers and brands
The empirical data that lies behind this survey comes from field work between 1992 and 1995. This field work represents work I made myself as a sales-man for the company, Malmberg Original Water. The task was to implement the Malmberg mineral water brand on the restaurant market of the South-Swedish area. Our aim was to reach the upper-scale, premium market of restaurants. The mission was successfully completed, and at 1996 we had completed the position as the most exclusively positioned mineral water brand in Skåne (Southernmost Sweden).
Fundament för kompaktkran : En universell lösning
This thesis describes the universalization, improvement and further development of acompact crane support frame for flatbed trucks. The work has been conducted at Eloch Fordonsteknik AB (henceforth EFAB) in Uppsala.The aim of the work has been to shorten the assembly time of the product. By doingso, the product can be kept on shelf, which in turn results in shorter lead time. Thishas been done by universalizing the support frame to be compatible with most of thechassis EFAB works with. Additionally, the entire construction has been made lighter,which will make it a more attractive choice for customers.A pre-study was conducted and information was gathered internally, as well asexternally, in order to ascertain that no limitation or possibility was overlookedduring the course of the project.One such limitation has been the geometry of the truck bed that the support frameshall be compatible with.
"... det är ju det som är att jobba ..." : En studie om hur bibliotekarier erfar referensarbete
The purpose of this Masters thesis is to study how librarians experience reference work. We wanted to get a better understanding about librarians assignments through the study. We chose to limit the study to public libraries, and to the south of Sweden. The questions used in our study are: How do librarians interpret the conception of reference work? What values do librarians have concerning reference work? How do librarians experience reference work? How do librarians look at different roles in reference work? We chose to use a fenomenographically inspired method.
Enkätundersökningar i teori och praktik - med inriktning på folkbibliotek
The purpose of this thesis is to study to what extent the methodological theories are being reflected in the construction of user surveys at public libraries in Sweden. The study has been conducted as a qualitative literature study in two parts. The first part is an examination of literature concerning survey methodology; the second part is a study of three user surveys conducted at Swedish public libraries after 1995. Our main results indicate that the theories about methodology are followed in part, though it cannot be determined whether this is due to any actual methodological studies, common sense, or just copying other surveys. In our study we have found some areas of user survey construction that need further attention and that would benefit from more extensive methodology studies on the part of survey designers.
Konstruktiv utformning av vikplog
This project is about investigation and improvement of a V-plow for the company Swekip. A V- plow is used for snow removal but this product has been found to have deficiencies in its construction, breaking down and not living up to the desired objectives. This is because the product is ordered from a company in China where they have some problems with understanding the purpose of the plow.Initially the existing plow is investigated, all the shortcomings set out and examined, what is wrong and what needs improvement?When the solutions were done they were evaluated and examined that they actually live up to the desired requirements.This assignment is a pure construction project where the majority is implemented in CAD, where models are developed and FE analyses are carried out. But the project also includes a feasibility study, idea study and hydraulic design.The results are presented in the form of a CAD model and associated drawings that will serve as the manufacturing basis for the new V-plow.
Impressions of reality
Impression of reality deals with the subject of wearing a mask. It is an exploration of the idea that we are all playing different roles, on a stage in front of an audience. The aim was to work conceptually with text, photo and video as a way of exploring a subject. The goal was to create and edit the material so it would be interesting for the visitor at the graduation exhibition. The content was created through experiments based on questions such as the following examples; What is a mask? How can content control form? What is originality? The process resulted in a publication and a video installation with the ambition of highlighting the idea of the world as a theatrical construction.