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Academic literature on the topic 'Mängdavtagning'
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Dissertations / Theses on the topic "Mängdavtagning"
Siwani, Zahra, and Bahar Tunc. "Mängdavtagning i Vico Office : Jämförelse ur tids- och kostnadsperspektiv mellan Vico Office och manuell mängdavtagning." Thesis, KTH, Byggvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174126.
Full textBIM stands for Building Information Modeling and has led to major changes in the construction industry, but despite this, the technology is not used fully. This is partly because some players feel more comfortable in the manual methods. The technology that is available can be particularly applied in the performance of amount calculation. In the current situation, some calculus engineers choose to perform amount calculation manually based on PDF drawings in print format using the program SpeedyCalc and also with pen and shell stock. This may instead be implemented in calculation program Vico Office with the help of a 3D model. The aim of the thesis is to compare two methods used for the amount calculation in time and cost perspective. The methods that were compared in this study was manual calculation and calculation program Vico Office. The study's purpose was also to compare the errors that may arise in the performance of these two methods. For study purposes, the authors conducted a number of interviews in which important information was collected. The authors also participated in two courses to gain the knowledge needed to facilitate the study. These courses focused on modeling program ArchiCAD and Vico Office. The authors also collected information by studying previous research in the area concerned. The amount calculation in this study was carried out on the project “Promenade”, which the authors reserved by Peab. The project is a multi-family apparment which consists of five buildings with four to six floors. The study was limited to three buildings and the major structural elements including for instance walls, doors and windows. The study demonstrated that the implementation of BIM in the tender stage results in a shorter time and at lower cost in amount calculation. When the different amount calculation methods prepared against each other, the difference in the amount of, for example a fan room wall was 100%, meaning that the fan room wall was missed during manual amount calculation.
Viklund, Fredrik. "Modellbaserad mängdavtagning med hjälp av BIM." Thesis, KTH, Byggnadsteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-35055.
Full textPersäter, Jens, and Amanda Vinka. "Anpassning av BIM-metodik för bättre mängdavtagning." Thesis, Uppsala universitet, Byggteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-228114.
Full textPihlvang, Alexander, and Pierre Svorono. "Automatiserad process för mängdavtagning och kalkylering : En jämförelse mellan traditionell mängdavtagning och kalkylering mot BIM för BTH Bygg AB." Thesis, KTH, Byggteknik och design, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-260051.
Full textReplacing an already functioning but old process can be time consuming and unprofitable. This has been demonstrated especially in the construction industry, where digitization is progressing slowly. This study examines what aspects of the traditional process of quantity takeoff as well as calculation process at the company BTH Bygg AB will be affected when changing to a process based on modeling and BIM, Building Information Modeling. The purpose of the study is to compare the traditional quantity takeoff and calculation with the aid of Bluebeam and MAP against a process that is carried out with modeling in the software ArchiCAD with a connection to Vico Office for quantity takeoff and calculation. The difference from the traditional process will be to move from 2D manual quantity takeoff to using 3D models, BIM models, and performing automatic calculations via Vico Office. The study is a qualitative study with elements of a quantitative survey where the focus on getting the most work-efficient and profitable solution for BTH Bygg. Comparisons between two different construction projects has been made. The projects comprises similar size and conditions as well as limited to calculations of floors, interior walls and ceilings. The basis for the study has been personal interviews with people from the calculation section at BTH Bygg to gather knowledge about their process for quantity takeoff and calculation. Interviews with employees of the companies for the software Bluebeam, ArchiCAD and Vico Office have also been carried out to obtain an objective picture of all the software. The conclusion is that implementing information-rich BIM models in the quantity takeoff and calculation has proved to be profitable when it comes to quality through reduced manual work when connecting between software. In addition, there are great opportunities for saving time in other stages by working in an integrated process where all parts of the con- struction process are linked to each other.
Fransson, Emelie. "Mängdavtagning från dynamisk BIM-modell, en fallstudie på NCC Montagebro." Thesis, KTH, Bro- och stålbyggnad, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99379.
Full textThe Construction Industry has been criticized several times for their slow development and for not being as productive as other industries. In orderto achieve an efficient Architecture, Engineering & Construction (AEC) Industry, Building Information Modeling, BIM, is one of the most debatedtopics in the field. The work process, which is about to efficiently provide information about a project, is already applied in the building construction. On the other hand, bridge and civil construction are just about to start the implementation of BIM. NCC Montagebro is a prefabricated concrete bridge which was developed in the 1980s and is once again up-to-date for product development. Theprevious standard dimensions have been removed in order to meet the customers’ requirements for length and width. A problem that occurs when allowing the customers to choose the dimensions is that there is no corresponding documentation to base the pricing on. The aim of this work was to investigate the possibility of establishing a parametric BIM model to use for quantity take off. A goal was to facilitate the continuing improvement of the product by highlighting obstacles and opportunities. The study was carried out through interviews and a practical case study. The results of these were discussed from the stated research questions andthe previously reported literature review. An important aspect emerging from the study is that the ability to rationalize and standardize the pricing depends on the degree of standardizationof the whole bridge concept. To make a general and flexible model it is necessary to examine which dimensions and parameters that should be set to default and which can be freely adjusted for each new project. These decisions and all other documents of experience should be gathered in a special technical platform for the NCC Montagebro. The study concludes that it is possible to rationalize the pricing of NCC Montagebro by using BIM but the arguments may not be enough to design a BIM model. The model should be provided with additional information so that it can be used in several sub-processes because otherwise, a large part of the purpose of BIM is lost.
Kakar, Adib, and Ensari Turan. "Analys av felkällor vid mängdavtagning av ventilationssystem ur BIM-modeller." Thesis, KTH, Byggteknik och design, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147538.
Full textThe past years there have been vast progresses within the construction industry from traditional construction projection method to a more advanced BIM-projecting method. The results of this dissertation shows that in spite of these vast progresses it is still commonly conducted manual quantity calculations with 2D-drawings. The main reason to this is that when you compare the quantity results from object based 3D models to manual quantity calculation results with 2D-drawing, the results do not add up being equal to each other. Hence time consuming manual quantity calculations with paper drawings has to be conducted to verify the real material quantity. The larger the project, the more time is consumed to conduct manual calculation verification. The aim has been to identify and analyze the different sources of error arising from manual calculation verification. In assistance we used the quantity calculation functions in the software RevitMEP (2014) and MagiCAD (2013.11). To substantiate the results manual calculations were conducted. The results were compared to the manual calculations from 2D drawings, the profit of the method is that we get less reoccurring errors. The gain of this is resulting in fewer recurring of errors. It is important to have a well-structured and clear approach with the use of the various BIM tools. When using the model, there are fewer errors and reduced misunderstandings arise during project planning. Continuous calculation verifications should be implemented as early as possible to allow the discovery of errors. Detecting errors in the early stage will prevent the error from escalating. The study also found a critical programming error in the program MagiCAD for Revit which gives the user false results. The problem has been pointed out to the application developer CADCOM and correction of the program will occur.
Lindgren, David, and Axel Sjölund. "Mängdavtagning från IFC modeller : En jämförelse mellan digital metod och traditionell metod." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-172327.
Full textQuantity takeoff is a process in construction projects that is to a great extent performed using traditional methods. Studies show that the industry is in demand for digital solutions and BIM is a digital solution that the industry believes in [1]. It has been found that the implementation of BIM as a tool for quantity takeoffs takes time, which may be due to several reasons: The 3D models that are delivered today are intended to be a visualization aid and may not be adequate to be used as a quantity takeoff model. When BIM quantity takeoff models are most demanded by constructions companies, it’s not always available. Thought leader – Some project must be the first to apply the method. Software licenses are expensive, and the investment may not yield returns directly. In the interviews with smaller construction companies, the risk of being the first to implement a way of working or technology that is not adopted by the market leaders was described. By using digital tools for quantity takeoffs there is an opportunity to save time and reduce work in several parts of the construction process. Time that can be spent on project planning, procurement of better suppliers or cutting down on unnecessary services. In this way, quantity takeoff by BIM can be a way of contributing to a more sustainable industry- both economically and ecologically. When comparing quantity takeoff from Bidcon BIM and Bluebeam, it was shown that the difference in quantity was for the entire reference project below 1%.
Klang, Rasmus. "KARTLÄGGNING OCH ANALYS AV MÄNGDNINGSARBETET HOS EN BYGGENTREPRENÖR : ANVÄNDNING AV 3D-MODELLER FÖR MÄNGDAVTAGNING." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70087.
Full textDilan, Khazan, and Susanna Elewi. "Kalkylarbete för byggnadsprojekt med Vico Office : För- och nackdelar med 5D BIM." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-19781.
Full textKnutsson, Josef, and Abir Al-Medana. "Krav och hinder med kalkylering i BIM." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-28534.
Full textPurpose: BIM provides opportunities to perform projects more efficiently, by sharing information between designers, engineers and contractors. This report examines the requirements and the obstacles to perfume effective calculation within BIM. Differences between calculation within BIM and the traditional way are also examined. Method: The study has been answered through interviews with architects, structural engineers and contractors that work with BIM. A study of literature has also been used to get information from previous studies and examples of calculations. Collected empirical data were compared with a theoretical framework created by studies of previous research on the subject. Findings: In the current situation, there are several problems that must be solved in order to be able to do effective e calculation within BIM. The first problem is the uncertainty surrounding the legal responsibility, regarding who is responsible for the BIM model in certain situations. The second problem is that the BIM model does not meet the required quality to be calculable. The third problem is the lack of standardization and a common language of the BIM models within the industry. Implications: The main problem with calculations within in BIM is that, the BIM model does not meet the requirement of quality imposed on the model. This can partially be removed by communication between designers, engineers and contractors at a turnkey, or that the client orders a calculable BIM model from the designer. The legal responsibility must be reviewed in order to make projectors feel safe to deliver BIM models to the contractors, which the contractors need to have reliability on. Limitations: The work has been limited to focusing on new construction.