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[提要]  根據(jù)鋼筋混凝土梁的試驗(yàn)研究成果，并參照國(guó)內(nèi)外規(guī)范的計(jì)算方法，對(duì)鋼筋混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范中關(guān)于梁承載力的計(jì)算方法進(jìn)行了分析討論，并建議了適用于任意跨高比的梁受彎承載力計(jì)算方法和受剪承載力計(jì)算方法。該建議計(jì)算方法對(duì)完善《混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范》( GBJ10-89)和協(xié)調(diào)我國(guó)各行業(yè)的混凝土結(jié)構(gòu)設(shè)計(jì)規(guī)范將起到一定的參考作用。
[關(guān)鍵詞]  受彎承載力  受剪承載力  剪跨比  跨高比

According to the test results, and consulting the abroad and domestic design codes of concrete structures, the calculation methods of bearing capacity of beams which are used in design codes of concrete structures are analyzed and discussed. The improved calculation methods for bending and shearing are given which can be used for beams in any span-depth ratio. These improved calculation methods will have some helping on perfecting the Design Codes of Concrete Structure(GBJ10-89)and coordinating the other design codes of concrete structures which are used for special fields.
Keywords:  flexural bearing capacity; shearing bearing capacity; shear-span ratio; span-depth ratio