Ｓｔｕｄｙ　Ｉｎｔｅｒｎａｌ　ｆｏｒｃｅ　ｏｎ　Ｒｅｉｎｆｏｒｃｅｄ　Ｃｏｎｃｒｅｔｅ　Ａｒｃｈ　Ｒｉｎ

doi:10.3969/j.issn.1009-0479.2015.03.014

Abstract

Abstract:

Ａｓ　ｍａｉｎ　ｓｔｒｕｃｔｕｒｅｓ，ｒｅｉｎｆｏｒｃｅｄ　ｃｏｎｃｒｅｔｅ　ａｒｃｈ　ｈａｓ　ｂｅｅｎ　ｗｉｄｅｌｙ　ｕｓｅｄ　ｉｎ　ｃｏｎｓｔｒｕｃｔｉｏｎｓ　ｏｆ　ｌｏｎｇｓｐａｎ　ｂｒｉｄｇｅ．Ｂｕｔ　ｗｉｔｈ　ｔｈｅ　ｉｎｃｒｅａｓｅ　ｏｆ　ａｒｃｈ　ｓｐａｎ，ｔｈｅ　ｉｎｔｅｒｎａｌ　ｆｏｒｃｅｓ　ｃｈａｎｇｅ　ｕｎｄｅｒ　ｖａｒｉｏｕｓ　ｌｏａｄｓ　ｄｉｒｅｃｔｌｙ　ａｆｆｅｃｔ　ｔｈｅ　ｓａｆｅｔｙ　ｐｅｒｆｏｒｍａｎｃｅ　ｏｆ　ｅｎｇｉｎｅｅｒｉｎｇ　ｓｔｒｕｃｔｕｒｅｓ．Ｔｈｅ　ｍｅｃｈａｎｉｃｓ　ｅｘｐｅｒｉｍｅｎｔ　ｗａｓ　ｄｏｎｅ　ｂｙｕｓｉｎｇ　ａ　ｍｏｄｅｌ．Ｔｈｅ　ｍｅｃｈａｎｉｃａｌ　ｄａｔａ　ｏｆ　ｓｔｒａｉｎ　ａｎｄ　ｂａｓｉｃ　ｃｏｕｎｔｅｒ　ｆｏｒｃｅ　ｗｅｒｅ　ｏｂｔａｉｎｅｄ　ａｆｔｅｒ　Ｌ／２　ｏｆ　ｔｈｅ　ａｒｃｈ　ｗａｓ　ａｄｄｅｄ　ｆｒｏｍ　５ｋＮ　ｔｏ１３ｋＮ　ｃｏｎｃｅｎｔｒａｔｅｄｌｏａｄ．Ｔｈｅ　ｆｉｎｉｔｅ　ｅｌｅｍｅｎｔ　ｍｏｄｅｌ　ｃｏｒｒｅｓｐｏｎｄｉｎｇ　ｔｏ　ｔｈｅ　ｅｘｐｅｒｉｍｅｎｔ　ｗａｓ　ｅｓｔａｂｌｉｓｈｅｄ　ｂｙ　ｕｓｉｎｇ　ｔｈｅ　ＡＮＳＹＳ　ｓｏｆｔｗａｒｅ．Ｔｈｅ　ｓｔｒｅｓｓ，ｓｔｒａｉｎ　ａｎｄ　ｄｉｓｐｌａｃｅｍｅｎｔ　ｏｆ　ｔｈｅ　ａｒｃｈ　ｗｅｒｅ　ｓｉｍｕｌａｔｅｄ　ｂｙ　ａｄｄｅｄ　５ｋＮ，１０ｋＮ　ａｎｄ　１３ｋｎｃｏｎｃｅｎｔｒａｔｅｄ　ｌｏａｄ　ａｔ　Ｌ／２　ｏｆ　ｔｈｅ　ａｒｃｈ．Ａｓ　ｗｅｌｌ　ａｓ　ｔｈｅ　ｓｔｒｅｓｓ，ｓｔｒａｉｎ　ａｎｄ　ｄｉｓｐｌａｃｅｍｅｎｔ　ｏｆ　ｔｈｅ　ａｒｃｈ　ｗｅｒｅ　ｓｔｕｄｉｅｄ　ｉｎ　ｔｈｅ　Ｌ／４，Ｌ／２　ａｎｄ　３Ｌ／４　ａｄｄｅｄ　５ｋＮ，１０ｋＮ　ａｎｄ　１３５ｋＮ．Ｔｈｅ　ｓｉｔｕａｔｉｏｎ　ｏｆ　ｉｎｔｅｒｎａｌ　ｆｏｒｃｅｓ　ｏｆ　ｒｅｉｎｆｏｒｃｅｄ　ｃｏｎｃｒｅｔｅ　ａｒｃｈ　ｗａｓ　ａｎａｌｙｚｅｄ　ｂｙｃｏｍｐａｒｉｎｇ　ｔｈｅ　ｓｉｍｕｌａｔｉｏｎ　ｄａｔａ　ｏｂｔａｉｎｅｄ　ｉｎ　ＡＮＳＹＳ　ａｎｄ　ｅｘｐｅｒｉｍｅｎｔａｌ　ｄａｔａ．Ｉｔ　ｃａｎ　ｐｒｏｖｉｄｅ　ｔｈｅｏｒｅｔｉｃａｌ　ｓｕｐｐｏｒｔ　ｆｏｒ　ｔｈｅ　ｅｎｇｉｎｅｅｒｉｎｇ　ｄｅｓｉｇｎ　ａｎｄ　ｃｏｎｓｔｒｕｃｔｉｏｎ　ｐｒｏｐｏｓａｌ．

Key words: ｒｅｉｎｆｏｒｃｅｄ　ｃｏｎｃｒｅｔｅ　ａｒｃｈ, ｓｔｒｅｓｓ, ｓｔｒａｉｎ, ｄｉｓｐｌａｃｅｍｅｎｔ

CLC Number:

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