This paper presents the experimental and analytical modal analysis of a concrete-filled (CFT) tube half-through arch bridge, with the span length of 90m, located at the center of Xining City, Qinghai province, China. Dynamic field test was carried out just prior to the official opening of bridge in order to inspect the dynamic characteristics of the bridge and make a baseline record for the fut...

An experimental study of plain concrete specimens of water-cement ratio 0.55, subjected to 0, 15, 25, 40, 50 and 75 cycles of freeze-thaw was completed. The dynamic modulus of elasticity (DME), weight loss, compressive strength, tensile strength, flexural strength, cleavage strength and stress-strain relationships of plain concrete specimens suffering from freeze-thaw cycles were measured. The ...

respect Respect for nature Abstract liking Expressing a positive but abstract attitude towards nature (e.g. "I enjoy nature" vs. the moreliking Expressing a positive but abstract attitude towards nature (e.g. "I enjoy nature" vs. the more concrete, "I enjoy walks in the woods") Abstract knowledge Expressing learning goals abstractly (e.g. "I want to learn about nature" vs. the more concrete, "I...