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　王曉鋒　（中國(guó)建筑科學(xué)研究院  北京　100013）

[提要]  參照《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》( GBJ10-89)附錄七的方式，以《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》(GB50010-2002)的公式為基礎(chǔ)，給出了鋼筋混凝土受彎構(gòu)件不需作裂縫寬度驗(yàn)算的配筋選擇方法。受彎構(gòu)件設(shè)計(jì)時(shí)，根據(jù)計(jì)算圖表選擇合適的鋼筋直徑和配筋率，即可同時(shí)滿足裂縫寬度計(jì)算的要求。
[關(guān)鍵詞]  鋼筋混凝土  受彎構(gòu)件裂縫寬度  鋼筋直徑  配筋率

To refer to appendix Ⅶ in Code for Design of Concrete Structrues(GBJ10-89), based on the formulae in Code for Design of Concrete Structrues(GB50010-2002), the selection of reinforcement for which the crack width in reinforced concrete flexural member may not be checked is presented. In flexural member's design, the demand of check of crack width shall be met automatically if desirable diameter and ratio of reinforcement are selected according to the specific figures and tables.
Keywords:  concrete structure; flexual member; crack width; reinforcement diameter; reinforcement ratio