2,958 research outputs found
Research on the combination of water and membranes as a structural building material
No full textp. 3024-3033The aim of this paper is to investigate the combination of water and membranes for
temporary architectural applications.
Water as a construction material, can be useful for three different purposes: first of all,
thanks to its thermal mass, it can be used as a medium for cooling down or heating up
buildings (Pronk et al [6]); secondly water is uncompressible and, in combination with air,
can be used as part of a structural element; thirdly the mass of water could work as a sound barrier so it can be used as sound insulation material (Rodrigues and Coutinho [7]).
This paper shows the result of the structural behaviour. There is another paper about sound insulation properties of water. The research in both structural and sound insulation fields was carried out in the laboratories of Technische Universiteit Eindhoven, The Netherlands.
The prototype is a "waterbeam" of 2 m span. Starting from the Tensairity(R) technology
principle (Luchsinger et al [8]) developed by Airlight, the purpose of this experiment is to
replace the iron struts with a second membrane chamber filled with water. Water works
well in compression and air prevents buckling. The result is a rigid structural element made by non-rigid material (water, air, membranes and cables) with a significant reduction of weight and cost of transportation compared to the traditional iron beam but also compared with the Tensairity(R) system. Different bending tests were carried out. In each test, the two chambers of the beam were filled with air or water to understand the material behaviour.The comparison between the results shows that water works slightly better than air (stiffness increase of a range of 8-13% in the elements filled with water).
Water application in architecture showed promising results. Further investigation (pure
compression tests on columns, multiple layers sound barrier) should be carried out. These results could give architects new design opportunities and solutions concerning temporary buildings and moveable architecture. Moreover the company and building construction industry could develop innovative structural elements and new insulation components.Pronk, A.; Maffei, R.; Martin, H. (2009). Research on the combination of water and membranes as a structural building material. Editorial Universitat Politècnica de València. https://riunet.upv.es/handle/10251/670
Replication Data for: The time efficiency gain in sharing and reuse of research data
No full textThis dataset contains supplementary data and R scripts to generate figures for the paper 'The time efficiency gain in sharing and reuse of research data'. This version contains new R scripts to generate Figures of the revised manuscript.
Abstract: Among the frequently stated benefits of sharing research data are time efficiency or increased productivity. The assumption is that reuse or secondary use of research data saves researchers time in not having to produce data for a publication themselves. This can make science more efficient and productive. However, if there is no reuse, time costs in making data available for reuse will have been made with no return on this investment. In this paper a mathematical model is used to calculate the break-even point for time spent sharing in a scientific community, versus time gain by reuse. This is done for several scenarios; from simple to complex datasets to share and reuse, and at different sharing rates. The results indicate that sharing research data can indeed cause an efficiency revenue for the scientific community. However, this is not a given in all modeled scenarios. The most efficient scientific community is one that has few sharing researchers, a high reuse rate, and low time investments for sharing and reuse. This suggests it would be beneficial to have a critical selection of datasets that are worth the effort to prepare for reuse in other scientific studies. In addition, stimulating reuse of datasets in itself would be beneficial to increase efficiency in scientific communities
Fork of Supplemental Materials IJzerman, Schrama, and Pronk
No full textThis is the preregistration page for IJzerman et al. (2017), which is a replication of IJzerman, Schrama, & Pronk (2017)
Fork of Supplemental Materials IJzerman, Schrama, and Pronk
No full textThis is the preregistration page for IJzerman et al. (2017), which is a replication of IJzerman, Schrama, & Pronk (2017)
Research on the combination of water and membranes as sound insulation building material
No full textp. 3034-3040This research concerns a 200 mm thick panel filled with water. The airborne sound
insulation of this panel was measured in accordance with standard ISO 140-3 [2]. Results
show that the single number rating for the airborne sound insulation Rw [3] for an average water layer thickness of 200 mm is 48 dB. This value is comparable to the one of a 150 mm brick wall or 100 mm concrete panel. Predictions about sound insulation of the same system at different thickness and possible applications such as highway sound barrier or construction site sound barrier are presented in the following pagePronk, A.; Maffei, R.; Martin, H. (2009). Research on the combination of water and membranes as sound insulation building material. Editorial Universitat Politècnica de València. https://riunet.upv.es/handle/10251/670
Pronk, John, [No Service Number]
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/411815Surname: PRONK. Given Name(s) or Initials: JOHN. Military Service Number or Last Known Location: [No Registration Number]. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 50546.227526
Item: [2016.0049.44079] "Pronk, John, [No Service Number]
Geelong Refinery History: Karel Pronk
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/315537Oral history tape. ID: 729154411
Item: [2008.0045.01244] "Geelong Refinery History: Karel Pronk
- …
