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3853 Uppsatser om Construction technology - Sida 29 av 257
Cementstabilisering av Biltemas andra lagerbyggnad i Halmstad
This is a technical report about cement stabilization in general and the stabilizationprocess during the construction of a warehouse in Halmstad, Sweden in particular and iswritten at the section for economy and technology at Halmstad University incollaboration with NCC Anläggning.NCC encountered variations in compression strength in the stabilized material on the firstwarehouse that they constructed for the company Biltema. In our report we used thestabilization process of the second warehouse for the same company as a reference todetermine what could be done to get a more homogeneous result for future projects.We also looked in to what testing method is the most suitable to determine the result ofthe stabilization.After interviews with people involved in the process and visits on the work site we havecome to the conclusion that the most probable cause to the variations in compressionstrength is segregation in the ballast material. This segregation can occur in severaldifferent occasions in the process such as during the production, transportation andhandling on the work site.Other causes for the variation can be improper compaction, overlapping stabilization insome places and different duration of hardening of the samples that are tested.The best way to do in situ test of the stabilized material is to do seismic investigations asthose are non-destructive tests in comparison to taking core samples and you can discoverany cracks or air bubbles in the material..
Hur blir Peab ett mer attraktivt företag för kvinnliga ingenjörer?
The Swedish construction industry is dominated by men; however this is starting to change. The average age of Construction Engineers is high and approximately 40 per cent of the employees will retire by the year 2015. Currently, female engineers dominate the graduating classes of Swedish Universities but this is not reflected in the Swedish Construction industry.With so many female engineers available, why is this? Does it require a change in company culture and their condition of work to attract them? Is it the attitude towards women in the industry among the employees that has to be changed? Or is it a woman?s thoughts and prejudices of the industry that creates obstacles?The purpose of this final thesis is to describe how contracting firms in the construction industry can make themselves more attractive for female engineers. To reach the purpose, a study among salaried employees and craftsmen was conducted.
Utveckling av Breakoutbox för Fuel Flow Transmitter
Development and construction of an electronic Breakout box is the main work for this thesis. The box is a part of a test system for the component Fuel Flow Transmitter and should convert signals to be suitable for a frequency counter. A previously constructed Breakoutbox for this purpose is being old and needed to be recreated. So SAAB Aerotech, Aircraft services, the company for the thesis work wanted to construct a new, more sustainable Breakoutbox adapted to a more modern technology. The signals to the box comes from the transmitter and should be converted to suitable signals for a frequency counter so it can show pulse and time difference between the signals.
Investeringskalkyl baserad på ett flerbostadshus energiprestanda
The aim of this study is to find a method to incorporate the energydemand of a building in the investment cost estimate.The study is based on an actual apartment block. The significant energyaspects are identified, and changed to more energy efficient options.These are then simulated using the energy calculation program VIP+.The calculated energy need is used in the investment cost estimate, andthe simulated alternatives are compared in regards to their economicalprofitability.Depending on the focus, different alternatives are the most advantageous.Since this study aims to show which alternative is the mosteconomically profitable, the annual profit is the parameter of mostimportance. This means that individual measuring of heating and hotwater use is the recommended change of the original house. A changeof the windows to new ones with a U-value of 1,0 as well as 0,8W/m2K also results in a positive change of the annual profit comparedto the original house..
Säkerheten på en byggarbetsplats : Förhåller sig Skanska och dess underentreprenörer olika till arbetsmiljösäkerhet?
Approximately ten people die every year at building sites in Sweden. Every year TheWork Environment Authority (Arbetsmiljöverket) receives 3200 accident reportsfrom the construction sector. The Swedish building contractor Skanska has the vision:?Zero accidents?. Only at Skanska Sweden, where this diploma work is preformed,350-520 accidents and mishaps are reported every year for the last 5 years.
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.
Opion leaders and word-of-mouth - A Case Study of Masai Barefoot Technology
This research aims at identifying the opinion leaders in order to study their behaviour, characteristics, their role within the word of mouth process, and what importance they have upon another consumers purchase decision. Also, to investigate the content of the message being spread. The results from the study show that opinion leaders are strong in spreading word of mouth. Messages were adapted by opinion leaders to suite their target audience. The results further contribute to the discussion about Watts? ?influentials?..
Leka lära leva : En studie i inomhusmiljöns betydelse för små barns lek och lärande i förskolan
Our aim in this work has been to redesign ModernFamilies and make a user-friendly interface for people with aphasia. The focus has been to identify general issues they might face while using different technology and applications, in order to find better alternative design for ModernFamilies, with a focus on usability. To approach this issue, we used a qualitative method. Our study includes several interviews and observations preformed in conjunction with the AGNES project (AGeing in a NEtworked Society) and speech therapists. Aphasia requires simple design that in the same time gives them support to understand and use technology and different applications.
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.
Mer värde i mobilen och mindre i plånboken - En fallstudie av mobila betalningslösningars genomslag i Sverige
This thesis presents the question of a possible breakthrough for mobile payment solutions in Sweden. The way payments are made and the way cash is being used in the society is changing. To be accepted as an alternative method, if cash isn't king anymore, the new technology will have to acquire user acceptance. In this thesis a case study of Swish, a mobile payment solution for P2P-payments, is presented. The focus of the study is customer value and technology acceptance of the service.
Materiallogistik vid innerstadsprojekt : En fallstudie av ett innerstadsprojekt i förbättringssyfte av materialflödet
The construction industry is always looking for ways to make the work more efficient aswell as minimize the waste of money in general. At the same time the industry is showing alow awareness of logistics which has to increase in order to improve the industry in thesekind of questions. Projects located in the inner city have high demands on the logistic andthe handling of material due to the so often limited space for storages of the material. Dueto this the purpose of this report is true a case, study and analyze what kind of factors thereis to take into consideration during the materials way from the supplier to the workstationin a project located in the inner city. The data for the report was collected with the help of acase study, and in three different ways.
"Det handlar ju om förutsättningar" : En studie om IT-satsningar i svensk skola
Background:IT development has in recent decades been fast progressing. In Sweden many schools have begun to invest in IT and new technologies. What happens at the schools that are investing in IT equipment and modern technology?Purpose:The purpose of this study is to elucidate the conditions for and the success factors and barriers that principals and teachers will experience in IT. Principals' experiences are complemented and mirrored against the teachers.
Varför bokar vi resor via Internet? : En kvalitativ studie om self-service technology
I denna uppsats diskuteras företagens self-service technology (SST) vilket innebär att kunderna själva får utföra sina tjänster med hjälp av företagens SST. Genom att låta kunderna göra detta kan företagen exempelvis spara pengar på att omorganisera personal eller rent av minska arbetsstyrkan eftersom mindre kunder kommer att kräva hjälp av personalen.I denna uppsats har resebranschen och dess SST att studeras. Uppsatsens frågeställning lyder: ?Hur upplever resebranschens kunder bokningar överInternet? där syfte är ?att undersöka och få förståelse för varför resebranschens kunder använder sig av SST när det finns andra möjligheter?.En kvalitativ metod har genomförts där sex kunder har lagt grunden till uppsatsens resultat. De huvudteorier som använts i denna uppsats är SST, customer value och technology readiness, och Davis TAM modellen samt Sheths value teori har legat till grund för analysen i uppsatsen.Teorin bakom SST är att det inte bara gynnar företagen utan även gynnar kunderna, då SST kan höja kundnyttan.
Cross-Laminated Timber? En fallstudie av Hyttkammaren samt en jämförelse med prefabricerat betongelement ur platsomkostnadsperspektiv
Approximately ten people die every year at building sites in Sweden. Every year TheWork Environment Authority (Arbetsmiljöverket) receives 3200 accident reportsfrom the construction sector. The Swedish building contractor Skanska has the vision:?Zero accidents?. Only at Skanska Sweden, where this diploma work is preformed,350-520 accidents and mishaps are reported every year for the last 5 years.
Medarbetaravtal vid motorproduktionen i Skövde - inverkan på anställningsrätten, förläggning av arbetstiden, arbetstagarorganisationernas inflytande, samt arbetstagares arbetsskyldighet
White- and blue collar workers traditionally belong to different unions and, therefore, are covered by different collective agreements. Collective agreements for different employee categories create internal divisions, which mean that white collar workers are not obliged to do work that falls under a blue collar agreement and reversed. Historically the difference between white- and blue collar work has been fairly sharp and so has the difference between collective agreements. Due to the continuous development of technology white- and blue collar work within production has become less clear. This has resulted in an increasing amount of disagreements regarding what collective agreement should apply and whether the employee is obliged to perform different work tasks.