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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F11%3A00191659%21RIV12-GA0-21110___
rdf:type
n9:Vysledek skos:Concept
dcterms:description
A complex system of equipment and devices for evaluation of stresses in the structural elementsof cable-membrane structures with an accuracy within 5% has been created. A device for determination of the force in the anchorage cable of the membrane has been created. The value of the axial force is evaluated based on the relationship between the axial load, the transversal deflection and the corresponding force. This relationship is also influenced by the stiffness of the investigated cable and the stiffness of the connection between the cable and the membrane. The second order theory is used for nondestructive measurement. If the cable is considered as perfectly flexible, then the axial force can be calculated from the measured transverse displacements and the corresponding force. Further, the device for determination of the force in the membrane has been developed. This device demarcates the area on the membrane. The value of the membrane loading is evaluated based on the relationship between it and the natural frequency of the demarcated area. The stresses in the membrane are usually not the same in different directions. The arrangement of the device is designed to take this influence into account. For testing of the above mentioned devices and for getting the calibration relations for commonly made types of cables and membranes, a calibration device has been designed and made. The forces in cables and the stresses in membranes in two perpendicular directions are continually measured during experiments using this device. The data obtained from the equipment developed in the experimental part of the project is used for the verification of computational models of cable-membrane structures. A comparison is made between the results from the computational models, those from experiments carried out on simple membrane structures in the laboratory and those from real structures in situ. A complex system of equipment and devices for evaluation of stresses in the structural elementsof cable-membrane structures with an accuracy within 5% has been created. A device for determination of the force in the anchorage cable of the membrane has been created. The value of the axial force is evaluated based on the relationship between the axial load, the transversal deflection and the corresponding force. This relationship is also influenced by the stiffness of the investigated cable and the stiffness of the connection between the cable and the membrane. The second order theory is used for nondestructive measurement. If the cable is considered as perfectly flexible, then the axial force can be calculated from the measured transverse displacements and the corresponding force. Further, the device for determination of the force in the membrane has been developed. This device demarcates the area on the membrane. The value of the membrane loading is evaluated based on the relationship between it and the natural frequency of the demarcated area. The stresses in the membrane are usually not the same in different directions. The arrangement of the device is designed to take this influence into account. For testing of the above mentioned devices and for getting the calibration relations for commonly made types of cables and membranes, a calibration device has been designed and made. The forces in cables and the stresses in membranes in two perpendicular directions are continually measured during experiments using this device. The data obtained from the equipment developed in the experimental part of the project is used for the verification of computational models of cable-membrane structures. A comparison is made between the results from the computational models, those from experiments carried out on simple membrane structures in the laboratory and those from real structures in situ.
dcterms:title
Measurements of Forces in Cable Membrane Structures Measurements of Forces in Cable Membrane Structures
skos:prefLabel
Measurements of Forces in Cable Membrane Structures Measurements of Forces in Cable Membrane Structures
skos:notation
RIV/68407700:21110/11:00191659!RIV12-GA0-21110___
n9:predkladatel
n19:orjk%3A21110
n5:aktivita
n16:P
n5:aktivity
P(GAP105/11/1529)
n5:dodaniDat
n6:2012
n5:domaciTvurceVysledku
n8:9402446 n8:3231054 n8:9321403
n5:druhVysledku
n20:D
n5:duvernostUdaju
n12:S
n5:entitaPredkladatele
n22:predkladatel
n5:idSjednocenehoVysledku
211174
n5:idVysledku
RIV/68407700:21110/11:00191659
n5:jazykVysledku
n18:eng
n5:klicovaSlova
cable-membrane structure; experiment; laboratory test; measurement equipment; force; natural frequency
n5:klicoveSlovo
n11:cable-membrane%20structure n11:force n11:laboratory%20test n11:measurement%20equipment n11:experiment n11:natural%20frequency
n5:kontrolniKodProRIV
[5529060B659F]
n5:mistoKonaniAkce
Chania
n5:mistoVydani
Edinburgh
n5:nazevZdroje
Proceedings of the Second International Conference on Soft Computing Technology in Civil, Structural and Environmental Engineering
n5:obor
n7:JM
n5:pocetDomacichTvurcuVysledku
3
n5:pocetTvurcuVysledku
3
n5:projekt
n13:GAP105%2F11%2F1529
n5:rokUplatneniVysledku
n6:2011
n5:tvurceVysledku
Fajman, Petr Polák, Michal Máca, Jiří
n5:typAkce
n21:WRD
n5:zahajeniAkce
2011-09-06+02:00
s:issn
1759-3433
s:numberOfPages
2
n15:hasPublisher
Civil-Comp Press
n4:isbn
978-1-905088-50-8
n17:organizacniJednotka
21110