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548 Uppsatser om Sprayed concrete - Sida 14 av 37

Förstärkning av betongkonstruktioner med kolfiber med avseende på olika brottstyper

The purpose of this report is to simplify the process of designing carbon fiber strengthening for existing concrete constructions, specifically beams. The intention has been to establish a flow chart containing information on the necessary testing and calculations for the design, to as far degree it is possible satisfy the requirements stipulated by Swedish and by extension, European authorities.To do this the report will examine a parking garage situated underground by Akademiska Sjukhuset, Uppsala. The parking garage was built in the mid-seventies, and has in recent years been subjected to a greater load than designed for by the construction of a road on top of it. FEM-Design has been used to obtain the internalforces of the beams and thereby determine whether they are in need of strengthening or not and thereafter design the strengthening according to Täljsten (2006) with some corrections from Täljsten (2011) due to new regulations.The result of this report is that the flow chart used is viable to design carbon fiber strengthening, atleast with the conditions met in our reference project.The conclusion drawn after working with this report is that there is a need for a clear standard for carbon fiber strengthening , preferably a standard that can be used throughout Europe..

4 organisationer och 825 chefer : En studie om chefslösa organisationer

This Bachelor?s thesis is about bossless organizations. We have observed that the hierarchical structure that the majority of organizations is structured by today is a remnant of a time long gone, and can be an obstacle for independent thinking and responsibility inside organizations. We want to question the accepted perception that an organization is best structured in a hierarchic form.The purpose of the thesis is to provide an understanding of how a bossless organization works and to give a concrete explanation of the consequences of this kind of organizational structure.The thesis is of a qualitative nature and is designed with an inductive approach at an organizational level. We conducted a case study on a bossless company and supplemented this with secondary sources from three other bossless organizations.It concludes that the bossless approach can work and that there are a number of advantages to benefit from it.

C# : Framtidens språk???

This paper is about the new programming language from Microsoft, C# (See Sharp) and the .NET Framework. They are still in beta-version, but will be released on the market in February 2002. This paper presents C#, not in detail but the characteristics that distinguish the language. A comparison is done with C++ and Java, since C# is most resembling to these languages. Both C# and Java have been developed from the mother- language C++.

Rörelsemönster och golvrenhet på två olika slags spaltgolv i lösdrift för mjölkkor :

About 80 % of all Swedish dairy cows are kept in tie-stalls, but loose housing is increasing, probably because it is more profitable for the farmer. The design of the floors is of cruicial importance to the cows well-being. Traditionally, the most common type of floor in the alleys of a cubicle system still is a slatted manure-draining floor made of concrete. The typical Swedish design has 125-mm slats and 40-mm slots, maximally. With too wide slots, there is an increased risk of injuries to the claws when the cow makes a hasty move.

 En jämförelsestudie av koldioxidsläpp för en byggnad med trä- respektive betongstomme ur ett livscykelperspektiv

The goal with this examination thesis is to investigate the difference in carbon dioxide emissions between a building with a wooden versus concrete carcassing from a life cycle perspective. The huge amounts of carbon dioxide released into air from human activities must be reduced to prevent serious consequences. A way to limit this issue is through performing a comparative study where the result shows which of two products with the same function has the lowest emission of carbon dioxide, whereof the product with the lowest carbon dioxide pollution can be chosen.To be able to perform a study like this an object has been chosen and studies about life cycle analyses have been done. The rental square meter, the thermal conductivity value, the energy requirements and the placement of the building has been set equal in both framework types. There were solely dissimilarities of the two buildings taken into account when this comparison study was performed.The result of the study is that a building constructed with a wooden carcassing has the lowest amount of carbon dioxide emissions.

En undersökning av arbetssätt vid designprocesser

The aim of this study is to explain the paradox of the memberstates willingness to surrender power of important issues such as asylum and refugee policy and therefore partly abandon its sovereignty. We also discuss the relation between internationalization, regionalization and globalization since these processes form the context in which our research problem is found. A case study is used as a method in this paper.In our quest for answers we use a theory of internationalization that we place in its context by primarily discussing the relation between globalization and regionalization. The theory is used as an explanatory force and to give it a concrete form we operationalised its three processes; internationalization of problems, internationalization of the societies and internationalization of the descisionmaking.The result of the case study shows that the increase in asylumseekers leads to a higher risk of negative competition wich give rise to the memberstates need to coordinate their politics.We found that when societies and problems are being internationalized, the state finds it difficult to resolve problems on their own and this leads to the internationalization of the dedescisionmaking. The internationalization of the decision-making process is therefore natural, which in this case means the decisions are taken by the EU rather than by the member states..

Utfackningsvägg i fältfabrik : en studie av arbetsmiljö och enhetstider

Construction companies are frequently criticized for high prices and long construction time. At the same time, statistics shows that construction workers are on the sick-list for occupational injuries or casualties more than other groups at the labour market.Skanska built a block of flats with tenant-ownerships in Gävle. The construction consists of concrete walls with in-fill walls in the front. The purpose with this degree project is to perform a risk analysis in work environment with focus on repetitive strain injuries and control the time report for in-fill walls manufactured in a field factory. The result of this project will help to make more realistic cost predictions in the future.This degree project has been performed in cooperation with the construction company Skanska.

Att komma hem : Coming home

In this essay I analyze the meaning of the concepts home and at home and the feeling of coming home. What is a home and what different interpretations are there regarding the concepts of home and being at home? What kinds of feelings are aroused by coming home? The world we live in offers great opportunities to travel, which in itself creates a perspective on the meanings of the concepts. The world we live in also forces people to move from their homes, families and countries due to various reasons, which creates various problems and a certain urgency concerning the concepts. I describe basic terms concerning the concepts, both regarding concrete definitions and more abstract notions, and then compare them with my own reflections.         Based on my writing project Coming home I discuss these questions in various ways.

Barns tolkning av en modell för vattnets kretslopp : -förståelse och tillämpning

AbstractThe purpose of this study is to find out how pupils give expression of a water cycle model and if the model causes any misunderstanding. Two problems constitute the starting point for this investigation. The first question is: how do the pupils explain the water cycle with the help of the jar model (can of glass). The other question is: can the children see any similarities between the can of glass and our earth. Qualitative semi structured interviews with seven pupils in the ages of 8-9 have been used to show the pupils? own thoughts and how they express them.

Viktstudie av Analysinstrument : Konceptförslag för minskning av vikt

This thesis report describes the development of concepts regarding how weight can be reduced to the analytical instrument Biacore 4000. This thesis has resulted in five different concept proposals, all of which is solutions to reduce the instrument's weight.The thesis started with a pre-study where the instrument's structure and function were studied using both Solid Works, the opportunity to study the instrument in real life were also possible done. During this phase, a weight study was conducted as well, in which the instrument's weight distribution was studied and mapped.Following the initial phase, the work proceeded by developing concrete concepts to reduce the weight of the instrument where focus mainly was on the two cabinets. In addition, another two concepts were revealed, both with a more general approach.At the final phase of the thesis, the concepts were compiled and evaluated among themselves and the initial instrument.The thesis resulted in a study of the instrument's structure and weight distribution, with suggestions on how weight may be reduced for the instrument.The result factors such as materials, and manufacturing were aspects that were taken into consideration.At the final section of the report, suggestions for further work in which different aspects are discussed can be found..

FEM i praktiken : En studie i FEM-Designs användningsområden inom konstruktionsprojektering

This diploma work has been conducted for the consulting company Ramböll inUppsala, Sweden with the purpose to perform a study with the calculation programFEM Design 9.0 made by Strusoft. The aim has been to find out if it is possible to gainadvantage by utilizing more advanced 3D software for design calculations, instead ofthe traditional methods currently used in construction works.The method of approach has been to model an existing warehouse building with theprogram FEM Design, and then compare the results with those attained with FrameAnalysis and hand calculations. These results are then analyzed. An evaluation is maderegarding to what benefits can be achieved using a more advanced 3D-model.The results of the study show that the differences between the methods are not ofany significance with regard to the design of the steel frame. However in morecomplex materials such as reinforced concrete, the differences become more notable.The conclusions drawn by the authors of this study into FEM Design are that theeducation requirements of the program are higher than for simpler programs, whosepurpose are solving predetermined problems.

Laborativ matematik-Hur, när och varför används det?

AbstraktHeléne Ingvarsson och Lotta JigrotLaborativ matematik- Hur, när och varför används det?Concrete mathematics- How, when and why is it used?Antal sidor: 37Eftersom vi båda undervisar i ämnet matematik i årskurs 2, kände vi ett intresse för attundersöka hur matematikundervisningen är upplagd och genomförs i de lite äldreåldersgrupperna (årskurs 4-5). Under vår utbildning till lärare i matematik har vi förståttvikten av laborativt arbetssätt i matematik. Syftet med vårt examensarbete är att undersökaom pedagoger använder sig av laborativt arbetssätt i matematik och i så fall hur och hur ofta. Istudien ville vi även undersöka språkets betydelse för den laborativa matematiken.Vi använde oss av en litteraturstudie samt en kvalitativstudie, där vi intervjuade sex lärarefrån olika skolor belägna både på landet och i en mellanstor stad.

Turkiet : Att vara eller att inte vara - Medlem av den Europeiska Unionen

This thesis aims at studying the European Union?s actions against applicant states. In this case Turkey has been chosen as a variable, because of its unique applying accession.Turkey is a country which has been applying for a membership of the European Union since 1989 and Turkey is the only state which has been searching for membership for more than twenty years. Turkey has been given a lot of critic of not fulfilling the political criteria of the Copenhagen criteria?s.

Stabilisering av betongstommar : Beräkning av en ekvivalent beräkningsmodul med hänsyn till samverkande kort- och långtidslast

Vid stabilisering av betongstommar är det komplicerat att välja en korrekt elasticitetsmodul. Detta då stommens laster verkar under både kort och lång tid. I detta examensarbete utförs en noggrann kryptalsberäkning för varje plans vertikala element, där hänsyn tas till den varierande byggtiden. Utifrån det analyseras kort- och långtidslaster med respektive elasticitetsmodul för att erhålla en ekvivalent elasticitetsmodul som tar hänsyn till de olika belastningstiderna. Denna elasticitetsmodul bestäms efter förhållandet mellan stommens knäcksäkerhet, snedställning och den vindlast som verkar på byggnaden.Den ekvivalenta elasticitetsmodulen ligger till grund för mer noggrann indata än tidigare vid stabilitetsberäkningar och redovisas i diagram som sedan kan användas i det praktiska ingenjörsarbetet.Där inget annat anges utförs beräkningar enligt Eurokod 2.Där inget annat anges är figurerna ritade av författarna..

Dikten i "den nya fredens värld" : Litteraturdebatt i tidskriften Samtid och Framtid 1944?1949

This thesis analyses the literature debate in the overlooked Swedish magazine Samtid och Framtid 1944?1949. The magazine was first published at the end of World War II on the initiative of publisher Johan Hansson. After an interesting start, the terms of the debate in the magazine were changed after a power struggle on the editorial level. Thus, the magazine never became the influential arena for literary discussions that it first had potential of becoming.

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