• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 2
  • Tagged with
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Hållbarhet för kemankarmassor : Hur kemankarmassor kan väljas utifrån nyckeltal för hållbarhet / Sustainability for chemical anchor masses : How chemical anchor masses can be selected based on sustainability key performance indicators

Larsson, Linnéa January 2022 (has links)
There are requirements and rules from authorities that companies in the building sector should work towards sustainable development. Sustainable development and sustainable building require knowledge to assess whether the building materials chosen are environmentally, socially, and economically sustainable. In this report, the most essential sustainability indicators for the building material chemical anchor masses have been defined in order to facilitate the sustainability work of companies already at the design and decision stage. Using the methods of literature study, document study and experiments in the form of simulations in calculation software, a selection of chemical anchor masses has been investigated. In order to assess whether a chemical anchor mass is sustainable, a table has been developed in which key sustainability indicators have been defined and then measured. For the definition of sustainability indicators, a document study was carried out in the environmental certification and material databases BASTA, Byggvarubedömningen (BVB), Miljöbyggnad, SundaHus and Svanen. The document study has been carried out with the aim of investigating how the chemical anchor masses are assessed against set sustainability criteria in the databases for the external and internal environment. The cost of chemical anchor masses has been investigated in a literature review. Simulations have been carried out in the calculation programs ESSVE CS, FIXPERIENCE and Hilti PROFIS Engineering to investigate the technical performance of the chemical anchor masses in terms of the load capacity utilization rate of the chemical anchor masses. The defined durability ratios were then measured by comparing the value per harm for the users. Based on the results of the environmental certification and material databases, the cost and the utilization rate of the loading capacity of the chemical anchor masses, a conclusion on how to define and measure a sustainable chemical anchor mass has been developed. The most important key indicators for sustainable chemical anchor masses have been shown in the work to be the impact of the harm that the chemical content of the chemical anchor mass can cause to the internal and external environment, and the harm that the cost of the chemical anchor mass represents to the user. The load capacity utilization rate has proven to be an important key performance indicator as it creates value for the user. When measuring the durability of a chemical anchor mass, the relationship between the harm and the value that the chemical anchor mass represents should be compared. The selection of a sustainable chemical anchor mass should therefore be based on the lowest possible negative impact on the internal and external environment according to the sustainability criteria set out in the environmental and material databases. The dimensional conditions, the load capacity utilization rate, always need to be achieved and this at the lowest possible cost.
2

Hantering av materialdokumentation under projekteringsskedet

Abou Absi, Nicole, Karakurt, Reyhan January 2019 (has links)
Denna studie riktar sig på att kartlägga hur materialdokumentation upprättas för att uppfyllaBoverkets krav gällande förslag till lag. Det undersöks även vilka brister företagen upplevermed materialdokumentation och informationshantering. Vidare undersöks om BIM kan vara enlösning till kommunikationsproblem och underlätta informationshantering. I arbetet har detfokuserats på materialdokumentationen endast under projekteringen.Utredningen i studien har verkställts med kvalitativa metoder, litteraturstudie och intervjuer.Data som samlas in med hjälp av intervjuer används som primära källor kring den aktuellastudien. Respondenterna till intervjustudien är aktörer av olika slag och som anses haerfarenheter med materialdokumentation.Resultatet av studien visa att materialdokumentationen upprättas mest under produktioneneftersom företagen köper det mesta materialet under det skedet. Det som görs underprojekteringen är att företagen mest överväger och planerar hur dokumentationen ska gå till.Det som eventuellt kan dokumenteras under projekteringen är sådana material som bestäms itidiga skeden. Det som brister när företagen ska dokumentera är att materialdatabaserna ochklassifikationssystemen upplevs komplexa och överarbetade, vilket leder till att det inte läggsmycket tid på det och även att det ibland undviks att upprättas. BIM visar sig vara en lösningtill kommunikationsproblem och underlätta informationshantering, men den utnyttjas inte tillsin fulla potential eftersom det är många som inte har datorvana och kunskaper inom BIM.Vilket leder till att även BIM oftast väljs bort. / This study aims to identify how materialdocumentation is prepared to meet the requirements of the Swedish National Board of Housing, Building and Planning. It also examines which flaws the companies experience with materialdocumentation and informationmanagement. Also, further investigations on BIM are done, to see if it can be a solution to the problems. This study focuses on the materialdocumentation, but only during the project planning.The study was conducted with qualitative methods, literature studies and interviews. Datacollected using interviews are used as primary sources. The respondents to the interviews are workers of various kinds and are considered to have enough experience of materialdocumentation.The result of the study has shown that the materialdocumentation is mostly used duringproduction, because the companies buy the most material during that stage.The companies lack knowledge when it comes to documenting and using the material databases. This is because the classification systems are experienced to be complex and overworked. BIM turns out to be a solution to the problems, but it isn’t used to its full potential. This is because there are many who don’t have computer experience and knowledge within BIM.

Page generated in 0.408 seconds