Rescue of a stone bridge with respect to current condition and standards

P. Řeřicha, P. Fajman, Lucy Davis
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引用次数: 0

Abstract

A three span stone masonry bridge dating back to the middle of the 19th century, still in the roadway network, is assessed to prevent its demolition. Its industrial heritage value and ecological concerns were the principal reasons for the assessment. The carbon footprint of the stone arch replacement would be approximately 200 t CO2 emission owing to 430 m3 reinforced concrete in the new structure. Besides the cultural monument, considerable energy, CO2 emissions and natural resources can be saved in accordance with the sustainable development goals. Standards, guides and commercial software do not provide an adequate support for the assessment of masonry arch bridges, therefore an innovative two phase application of a commercial linear sttructural analysis code and an original in-house code was developed for the purpose. Thousands of stone ach bridges still in service worlwide give the case study more general importance.
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石桥抢救现状及标准
一座建于19世纪中叶的三跨石砌桥仍在道路网络中,目前正在进行评估,以防止其被拆除。其工业遗产价值和生态问题是评估的主要原因。由于在新结构中使用430立方米钢筋混凝土,更换石拱的碳足迹约为200吨二氧化碳排放。除了文化古迹,还可以根据可持续发展目标节省大量的能源、二氧化碳排放和自然资源。标准、指南和商业软件不能为砖石拱桥的评估提供足够的支持,因此,为此目的,开发了一种创新的两阶段应用程序,即商业线性结构分析规范和原始的内部规范。全世界仍有成千上万座石桥在使用,这使得这个案例研究具有更普遍的重要性。
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