錨具的分類有哪些？

2021/04/14 分類:未分類行業(yè)資訊 1007 0

錨具是指預(yù)應(yīng)力混凝土中所用的永久性錨固裝置，是在后張法結(jié)構(gòu)或構(gòu)件中，為保持預(yù)應(yīng)力筋的拉力并將其傳遞到混凝土內(nèi)部的錨固工具，也稱之為預(yù)應(yīng)力錨具。

錨具根據(jù)使用型式可分為兩大類：

（a）安裝在預(yù)應(yīng)力筋端部且可以在預(yù)應(yīng)力筋的張拉過程中始終對預(yù)應(yīng)力筋保持錨固狀態(tài)的錨固工具。

張拉端錨具根據(jù)錨固型式的不同還可分為：用于張拉預(yù)應(yīng)力鋼絞線的夾片式錨具（YJM），用于張拉高強鋼絲的鋼制錐形錨（GZM），用于鐓頭后張拉高強鋼絲的墩頭錨（DM），用于張拉精軋螺紋鋼筋的螺母（YGM）,用于張拉多股平行鋼絲束的冷鑄鐓頭錨（LZM）等多種類型。

（b）固定端錨具：安裝在預(yù)應(yīng)力筋端部，通常埋入混凝土中且不用以張拉的錨具，也被稱作擠壓錨或者P錨。

預(yù)應(yīng)力筋用錨具的最新標準為：中華人民共和國預(yù)應(yīng)力筋用錨具、夾具和連接器（GB/T14370-2015），鐵道部預(yù)應(yīng)力筋用錨具、夾具和連接器（TB/T3193-2008）。

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