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    徐有鄰  王曉鋒
    （中國(guó)建筑科學(xué)研究院  北京 100013）

[提要]  介紹了混凝土結(jié)構(gòu)中鋼筋保護(hù)層的作用，以及新公布的《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》( GB50010-2002)中有關(guān)保護(hù)層內(nèi)容的修訂背景。根據(jù)受力鋼筋錨固及混凝土結(jié)構(gòu)耐久性的要求，新規(guī)范普遍提高了對(duì)鋼筋保護(hù)層厚度的要求，并可根據(jù)具體情況作適當(dāng)調(diào)整。
[關(guān)鍵詞]  混凝土結(jié)構(gòu)  鋼筋  保護(hù)層厚度  規(guī)范

The role of protective coverings of reinforcements in concrete structures and the backgrounds about revision of national standard Code for design of' concrete structures ( GB50010-2002) are introduced. According to the requirements of anchorage of reinforcements and durability, requirements of depth of protective coverings are advanced in new code, and suitable adjustment shall be necessary to specified instance.
Keywords: concrete structures; reinforcements; depth; protective coverings