{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/67a220ae3e71a8c58e21aab6/67e2793932296ab3b86f48b6?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"A History of Building Defects","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/67a220ae3e71a8c58e21aab6/1742894340213-acd594a6-5fcb-4c99-a8a2-1fe3d7fc6cbe.jpeg?height=200","description":"<h3><em>A History of Building Defects</em></h3><p><br></p><p>This episode explores how building defects have emerged throughout history due to construction methods, material choices, and evolving building use. It highlights how structural engineers must consider long-term durability and adaptability when designing buildings.</p><p><br></p><p>Key points include:</p><ul><li><strong>Recurring defects</strong>: Construction methods often repeat past mistakes, such as timber posts rotting when embedded in the ground, a lesson ignored from the Iron Age to modern retaining walls.</li><li><strong>Changing building use</strong>: Modifications over time, such as adding floors to medieval timber-framed homes or sealing traditional buildings with cement render, often create new structural issues.</li><li><strong>Mathematical analysis</strong>: The episode discusses how early engineering calculations, such as those used to stabilise cracks in St. Peter’s Basilica, laid the foundation for modern structural assessments.</li><li><strong>Industrial Revolution impact</strong>: The shift from timber-framed to brick structures introduced defects, including embedded timber elements within brick walls, leading to decay and instability.</li></ul><p><br></p><p>Ultimately, the episode underscores the importance of understanding historical defects to prevent future structural failures.</p><p><br></p><p>Delivered by GC Robertson (GCR) www.gcrobertson.co.uk</p>","author_name":"GC Robertson"}