Abstract
The paper discusses issues related to the dynamic parameters of the metro train influence on the building construction of Ukraine Cinema & Concert Hall complicated in terms of construction located in Kharkiv City. The hall roof is of peculiar complexity made in the shape of hyperbolic paraboloid hung to the cable roof system and supported by the inclining reinforced concrete arches. Using the equipment by DIAMEX 2000 LLC we have measured vertical and horizontal forced vibrations in the most relevant points of the casing. Natural vibrations were defined by creating dynamic impact of the falling load weighing 10 kg from a height og 2 m. The vibration parameter measurement was carried out by means of Ahat-M vibration analyzer. As a result we have obtained amplitude-frequency characteristics of the forced vibrations caused by metro train movements. The frequency of base and obertones is within 30-50 Hz. At the same time, vibration amplitudes is up 200-350 pm. Specific range of vibrations leads to the occurrence of the for framing roof framing (concrete and steel strand guy ropes), noise penetrating into the hall significantly worsens operating characteristics for the spectators. A special calculation of guy rope element taking into account fatigue factors has been made.
Highlights
The paper discusses issues related to the dynamic parameters of the metro train influence on the building construction of Ukraine Cinema & Concert Hall complicated in terms of construction located in Kharkiv City
There is a large number of studies in this direction and methods to calculate dynamic impacts on the building constructions [1,2,3,4]
The impact of metro train traffic on the building above-ground significantly worsens the operational parameters of these buildings, especially, if this building is classified as a public building
Summary
Determination of the dynamic load impact on the building constructions is of great importance for estimation of their reliable and safe service during the defined design period. In this case the dynamic load transfer depends on many parameters, in particular, on the thickness of soil layer over the metropolitan, composition and physical and mechanical properties of ground, running tunnel construction arrangement, railing construction etc. The building of Ukraine Cinema & Concert Hall is distinguished by the originality of construction solution – for the first time in the world’s practice the asymmetric scheme of saddle-shaped roof was performed, the casing of 90x48 m in size was constructed which was closed off with reinforced concrete slabs that was the major achievement of the urban architecture of the second half of the 20th century.
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