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753 Uppsatser om Concrete wall - Sida 31 av 51
Toleransproblem vid produktion och montering av prefabricerade betongelement
The idea with constructions made out of prefabricated elements is that it should be quick and easy to build as the demands for lower production costs, increased profitability and shorter production times are constantly increasing. High accuracy in measurements and well-balanced tolerances is required to achieve this. The fact that the concrete-elements doesn?t fit and that damage occurs during assembly is a highly topical issue even though we now have methods and systems that make this high-intensity construction possible. Through this report we want to highlight the problems that cause the dimensional and tolerance problems and give suggestions on how to come to terms with these.
GRUNDLÄGGNINGSMETODER-VAL AV GRUNDLÄGGNINGSMETOD FÖR SMÅHUS I ÖREBRO LÄN
Husgrunder stödjer hela hus och ska vara stadiga nog för att ta upp husets vikt och bära byggnaden imånga år utan att drabbas av problem orsakade av bland annat fukt och tjäle. Det finns tregrundkonstruktionstyper som tas upp i detta arbete. Dessa är: platta på mark, krypgrund ochplintgrund.Syftet med arbetet är att undersöka konstruktion och funktion för de tre grundkonstruktionerna.Arbetet redovisar också vilka grunder som är förekommande vid nybyggnation av småhus i Örebrolän, samt hur olika aktörer inom byggbranschen motiverar sina val med avseende på risken förfuktrelaterade problem.Inom detta examensarbete redovisas resultat från intervjuer med ett antal olika byggnadsaktörersom bygger med olika typer av grundkonstruktioner. Information har samlats in genom intervjuermed sakkunniga samt egen teorifördjupning i litteratur för grundkonstruktioner. Utifrån syftet medarbetet har teorin och resultaten från intervjuerna sammanställts.Platta på mark med underliggande isolering är den grundkonstruktion som framförallt väljs vid valav grundkonstruktion för nybyggnationer av småhus i Örebro län.
Vad var egentligen problemet? : en analys av SOU Framtidsvägen och ämnesplanen i historia
The aim of this study is to analyze how problems are represented within SOU 2008:27. Further more, the aim is to analyze how the new subject plan for history can bee seen as a product of this document. The method used, and the theoretical frame of the study, is based on Carol Lee Bacchi?s ?what´s the problem represented to be?? approach, which basic principle is that policies are filled with representations of problems and that these representations need to be examined. These problem representations are then themselves subject for scrutiny, the second step being an analysis of the texts presumptions and assumptions concerning view of man and perception of knowledge. The results show, among other things, that a problem representations can be found in the SOU; the school system is too vague and unclear.
Framtagning av ett dimensioneringsverktyg för balkonginfästningar enligt Eurocode och ETAG.
The purpose of this paper is to standardize and simplify the design work on a few specific types of storage brackets for balconies. The company Balco AB had the wish to simplify the design work in the preparation of attachments to their balcony structures. This would be done by a calculation matrix that could be produced which then in turn could be used for each new project by the company. The design work behind the development of these fittings at each new project is costly both in terms of time devoted by each calculation but also the cost of the time. The purpose of this report is that in a systematic manner, a calculation matrix can be created that then the company instead may follow from each new project.In carrying out the project used HILTI calculation program, which was provided by the company HILTI.
Är korta spenar ett problem i samband med mjölkning? :
In some herds it has been observed that extremely short teats have become a problem; with a negative influence on the milking performance. The aim of this study was therefore to investigate to what degree the quality of the teats and the milk in cows with short teats is affected as compared with cows with normal teat length and furthermore if the milking performance could be improved by using a liner adapted to short teats.
This study was divided in two parts. In the first part, it was examined if there were any differences between short teats and teats with normal length with reference to the milking performance, udder emptying, teat treatment, milk quality, and udder health. 11 pairs of cows were used and in each pair of cows one cow had teats shorter than 40 mm while the other cow had teats longer than 50 mm.
Det ideella arbetets betydelse för individen : En inblick i några individers personliga utveckling och lärande samt karriärutveckling genom deras ideella arbete
What impact has volunteering on the individual and their career development? For the young man about to enter the world of work, for the non-profit organization that needs to recruit new volunteers or employers who are facing hiring new staff. This study may provide a new approach in their search for work, volunteers or employees. The purpose of this study is to highlight the experiences of volunteering for individuals' personal learning and development, and the importance of volunteering for their career development. The study has a qualitative approach.
En studie om konflikter i arbetslivet och det systematiska arbetsmiljöarbetets roll som verktyg till förebyggande arbete.
Abstract The main subject of this essay is conflicts at work and the effect it has on the employee´s health. I can through various reports read that bad health at workplaces is too high and that conflicts are a reason. What can be done to the work environment so it will be better from a psychosocial perspective? Sweden has a regulation that makes the employer responsible to work for an improvement in the work environment; can these regulations be used in purpose to reduce conflicts?My first question concerns the possibility to establish preventive procedures in the workplace systematic work regarding to improve the work environment. My second question is about the obligations of the employer to attempt to reduce conflicts at the workplace and the third question regards the documenting and monitoring of conflicts and the preventing work to reduce them. The purpose of this essay is to clarify how conflict preventive work can be included in the Systematic work environment management.
Utmattning av järnvägsbroar i armerad betong : Enligt eurokoder
Commissioned for this report is Ramboll, Bridge and Tunnel Unit in Stockholm. Theidea throughout the work has been to primarily help bridge designers compilingadvice and instructions on how fatigue verification for railway bridges in reinforcedconcrete shall be performed under the new rules, the Eurocodes.After the introduction of the Eurocodes in 2011 has major problems emerged amongdesigners around Sweden. In some areas, it differs in the calculation rules comparedwith rules from the Swedish Transport Administration and the National Board ofHousing, Building and Planning calculation. Fatigue verification is one area where thenew calculation rules are different from the past.A large part of the report has been to interpret and find the relevant information inthe Eurocodes concerning fatigue. When questions or doubts have surfaced, this hasbeen discussed with Elisabeth Helsing at the Swedish Transport Administration andbridge designers at Ramboll.The result is a report where the structure is organized in the way that the bridgedesigners can move from cover to cover and realize that fatigue verification in realityfollows the same order as the report's sections.
Ämnet Idrott och hälsa som grund för ett längre arbetsliv
The purpose of this study is to examine how well the teaching of physical education meets the needs of a future life in the building and construction industry. In order to answer the survey's purpose, we have carried interviews with teachers for the subject Physical education and health as well as with teachers for the Building- and construction program in order to through their experience gain understanding of common health problems in the profession, but also to gain a deeper understanding of the importance of the subject Physical education and health for this profession. We have reported and described previous research and then analyzed it during our processing of collected data material. The result of the interviews showed that the teachers as far as possible are trying to adjust the lessons to suit this practical program. They also indicate several aspects to consider in order to further customize the education for students in the Building- and construction program.
Elevers uppfattning om svenskämnet i årskurs 3 på gymnasiet
The purpose of this study has been to investigate students? perceptions of the content inthe Swedish subject and current syllabus for Swedish in the third year of uppersecondary school. The purpose has also been to analyze if students are familiar with theaims they are working towards, how explicit they are and if they have any significancefor the students? results and motivation. This investigation is based on a socio-culturalperspective and was made with help of a quantitative method by using questionnaires,but has also been studied to some extent qualitatively, which have been analyzed from astudent angle.The analysis of the results shows that the students have very good perception ofwhat they should study in Swedish year three in upper secondary school.
Lagring av kyla med horisontella markvärmeväxlare för kylning av koncepthus i Mellanöstern
Norconsult AB has developed a solarhousing concept, a house designed for the warm climate in the Middle East andwith large quantities of solar panels installed. The cooling system for the house was designed in an earlier report, the purpose of this thesis is to investigate the possibility of short and long term storage of thermal energy via an underground energy storage volume.Two different designs of the storage and three different filling materials have been integrated into a model to simulate different cases. The first design consisted of pipes installed in the ground, without insulation. The second design consisted of an insulated concrete box installed to prevent thermal energy from the surrounding soil to flow towards the lower temperature regions within the storage. The three different filling materials were dry saudi sand, water saturated saudi sand and the filling material used by the client for energy storage in Sweden.The results from the simulations show that neither of the designs, regardless of the filling material, managed to extract enough thermal energy from the house to the ground to uphold the demands of indoor climate.
Lek för livet : hur leken kan uppmuntras av vår omgivning
Lek är en erkänt viktig del i barns utveckling men det nämns sällan vad för betydelse den har för vuxna. I detta arbete har jag utgått från att lek är något att ta tillvara på och uppmuntra i livet. Jag har också utgått från att leken inte alla gånger kommer av sig självt utan att den kan behöva uppmuntras.
Jag försöker i det här arbetet få ett grepp om vad lek har för betydelse i vuxenlivet samt vad det finns för positiva aspekter med leken.
Jag har undersökt hur vi idag ser på lek bland vuxna och vad det finns för olika ansatsningar till att få in mer lek i vuxenvärlden. Genom teoribildning och två platsstudier har jag analyserat vad det finns för olika aspekter som bör tas hänsyn till vid planerandet av en lekfullmiljö riktad till vuxna, exempelvis särskilda inslag eller element som uppmuntrar till lek.
Det finns idag flera forskare och organisationer som förespråkar och jobbar för att människor ska inse värdet av lek. Dels genom att upplysa om värdet men också med att uppmuntra människor genom olika initiativ till att leka mer.
Utveckling och visualiseringav arbetet med ständiga förbättringar : För Pfizer, Strängnäs
Today it becomes more and more important to work with continuous improvements to stay ahead of the competitors. Pfizer in Strängsäs started working with continuous improvements in 2010. By the end of 2012, the company?s goal is to reach 24 improvements per employee at the factory.Their project has two main purposes; to examine the need and possibilities for visualization regarding continuous improvements at the production department and to develop a concept for visualisation of the entire factory?s continuous improvements.To attain the information required to examine the needs at the production department, interviews with relevant employees at the department were conducted. Using interviews as a benchmarking instrument was also helpful in getting different points of views.
A Strategic Decision-Making Model for Supply Chain - A Void to be Filled
Many researchers emphasize the increasing strategic importance of supply chain management, but there is still a lack of concrete guidance for managers faced with strategic decisions in supply chain. Within decision-making theories, the rational decision-making model is the most commonly used. This because of its suitable foundation, enabling a structure to the complex decision process. The rational decision-making model is today not developed to include the aspects of strategic decision-making made in supply chain. The purpose of this research is to adjust a structured rational decision-making model, making it applicable for strategic decision-making in supply chain.
Fyra elevers upplevelser kring grupparbeten
The purpose of this study is to investigate four students in grades six by interviewing them. It will find out how they personally perceive their own learning in group work and why they work in groups. In my investigation, I will rely on these two questions:How do my subjects reflect on their own learning during group work?Why do my subjects think that they work in groups?For my study, I selected four students from the same school, two girls and two boys, who are 11 to 12 years old. The interviews were individual because I wanted to get a deeper view of how students perceive their own learning in groups and why they are working with a group of other students.