| Summary |
A framework membrane structure has been designed combining cross arches formed from steel tubes, type B membrane material, and cables, as the roof over an indoor pool. In addition in order to determine the damping properties of the type B membrane material, microtremor measurements and hammer impact excitation measurements were carried out on the steel structure of the cross arches on their own before and after initial tensioning the membrane. Similar results were obtained for the measurements before initial tension of the membrane and the analysis, with a primary natural frequency of about 11.05 Hz. As a result of estimating the damping factor by the RD method, it was estimated that the damping factor was a maximum of 1.72 %. After initial tension of the membrane, the results showed that the estimated damping factor was a maximum of 4.85 % at the frequency 12.80 Hz. By conducting microtremor measurements, and hammer impact excitation measurements, and seismic load measurements, and wind load measurements, the vibration characteristics and damping factors were examined.
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