This indicates that barriers tested under the current test standard does not give the worst-case scenario in terms of foundation loads, and barrier designers should take into account the possible effect of increased foundation loads by reinforcing the barrier posts and/or increasing their spacing.Īu SWC, Chan CF (1991) Boulder treatment in Hong Kong. Results reveal that areal loading induced by a rigid slab increases the loading on the barrier foundation by up to 40 % in both horizontally and vertically positioned barriers when compared to a concentrated load scenario with a single boulder. The effect of different weight geometries was studied by considering impacts by a rigid single spherical boulder and a rigid slab. A new bilinear force-displacement model was incorporated into the model to simulate the behavior of the energy-dissipating devices on the barriers. In this study, a calibrated three-dimensional finite-element model was developed to study the performance of vertically and horizontally orientated rockfall barriers under concentrated areal impact loads. A rigid slab may load a barrier over a larger area and its effect has not been investigated. The weight typically has a spherical or polyhedral shape and cannot reproduce more complex rockfall scenarios encountered in the field. The evaluation of the dynamic response of proprietary flexible barriers is conventionally performed using full-scale field tests by dropping a weight onto the barriers in accordance with the European test standard ETAG 27. L.L.Flexible steel barriers are commonly constructed on steep hillsides to mitigate rockfall.Graduated from Incheon Songnim National School.In 2014 he participated in organizing the International Solidarity Agency to Stop Global Homosexuality, a collaboration between Korean evangelicals and their counterparts in Haiti. He is well known for his role as the chair of the National Breakfast Prayer Committee meeting and as a key architect of anti-gay legislations in Korea. In 2016 Hwang placed third on the Rainbow Vote list of 22 most homophobic politicians. Hwang has been elected to the constituency he represents five times. He was a judge in courts in Seoul and other jurisdictions in South Korea before entering politics. Hwang studied law at Seoul National University. As of 2012 Hwang represents the electorate centred on Yeonsu District, Incheon in the National Assembly of South Korea. Hwang Woo-yea ( Korean: 황우여, Hanja: 黃祐呂 born 3 August 1947) is a Korean jurist, politician, and former chairman of the Saenuri Party.

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