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东米 发表于 2018-10-23 18:07:50

箍筋驗收如何判定是否偷工減料了呢？

向各位朋友請教一個問題：GB50204-2002第21頁的表5.5.2中：綁紮箍筋、橫向鋼筋間距的允許偏差一項的檢查辦法，鋼尺連續量三檔，取最大值。
本人理解爲：舉個例子，設計給定值爲100，連續量三檔，讀數分別爲105、115、110，那麽這個檢查點的實測偏差值就爲最大數15，符合規範的規定，是合格的。
也有人這樣理解：還是針對這個檢查點，連續量三檔，累計值就爲330，偏差值就爲30，超出了規範的允許值，這個檢查點不合格。
請各位幫幫忙，應該怎樣理解這問題？多謝了！
一位網友引經據典回複道：
根據我所掌握的知識答複如下：
1、在此三个偏差值中求其最大者进行判断合格与否,举个例子，设计给定值为100，连续量三档，读数分别为105、115、11 0，那么这个检查点的实测偏差值就为最大数15，符合规范的规定，是合格的。
2、并不是求三档之间距之和( 还是针对这个检查点，连续量三档，累计值就为330，偏差值就为30，超出了规范的允许值，得出这个检查点不合格是没有任何道理的 ),而是分别求三档间距的偏差,取其中最大值对尺寸偏差合格与否进行判断.量测位置是随机的,但必须是连续的三档而非任意取三档 .
可以看一下(徐有邻程志军著)第111页.有详细的解读.本丁观点：

3檔330，沒有什麽。某梁30檔3300的話，就是故意少放3道，箍筋就少放了10%。
這是檢查規格數量必須滿足設計要求，所以說，要看10檔總尺寸有沒有超過10S。如有，就要查看全長總道數。
僅僅看3檔，就發現不了總數量是不是滿足設計要求！
如果隨機抽查3～5組10檔總間距都超10S，就是刻意少放，偷工減料。

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箍筋驗收如何判定是否偷工減料了呢？