The stone arch bridge is a rather novel structure in the line of bridges. At a glance, it seems almost impossible that an arch, made of many discrete stones, could possibly stand, let alone support weight, yet that they do is entirely undeniable. Compression One more picturesque explanation of why an arch stands is that two columns of falling stones are “falling” into each other and hence can’t fall all the way. A more scientific explanation of the reason why arches not only stand, but hold … [Read more...] about How a Stone Arch Bridge Supports Weight
Archives for July 2019
When building a stone arch bridge, the question sometimes arises as to how many arches are needed. In some cases the answer is obvious; for instance, a small gap begs for only one arch. But there are times when multiple arches are advantageous, despite the fact that a pier in the waterway is required. First, it is important to understand the limitations inherent to stone arches. An arch between 2 feet and 20 feet is fairly easily made and does not present major design challenges. Nor does … [Read more...] about Stone Arch Bridges: Spans and How Many?