- 摘 要
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（1 江蘇省結(jié)構(gòu)工程重點實驗室(蘇州科技學(xué)院)，蘇州 215011；2 西安建筑科技大學(xué)土木工程學(xué)院，西安 710055）
［摘要］為研究型鋼輕骨料混凝土梁的正截面受彎承載力，進(jìn)行了8根型鋼輕骨料混凝土梁和2根型鋼普通混凝土梁的受彎性能試驗。根據(jù)對型鋼普通混凝土梁正截面受彎承載力的分析結(jié)果，提出了型鋼輕骨料混凝土梁正截面受彎承載力計算的修正型鋼規(guī)程法和疊加法。8根型鋼輕骨料混凝土試驗梁的受彎承載力實測值與修正型鋼規(guī)程法計算值之比的平均值為1.042，變異系數(shù)為0.039；與疊加法計算值之比的平均值為1.039，變異系數(shù)為0.039，證明采用修正型鋼規(guī)程法和疊加法來計算型鋼輕骨料混凝土梁的正截面受彎承載力是可行的。
［關(guān)鍵詞］型鋼輕骨料混凝土；梁；受彎承載力；計算方法
Experiment and calculation of bending strength of steel reinforced lightweight aggregate concrete beams
Liu Fan1, Weng Xiaohong1, Shao Yongjian1,2, Zhao Hongtie2, Yin Zhiwen1(1 Jiangsu Key Laboratory of Structure Engineering(University of Science and Technology of Suzhou), Suzhou 215011, China;2 School of Civil Engineering, Xi′an University of Architecture & Technology, Xi′an 710055, China)
Abstract:In order to study bending strength of steel reinforced lightweight aggregate concrete(SRLC) beams, eight SRLC beams and two steel reinforced normal density concrete beams were tested. “Up-dated directive rules of SRC structures” and “superposition method” of the calculation for the normal section bending strength of SRLC beams are presented on the basis of the comparison and analysis of calculation theory of the normal section bending strength of steel reinforced normal density concrete beams. The average of the ratios of the measured values to the calculation values according to “up-dated directive rules of SRC structures” is 1.042, and the mutant factor is 0.039. The average of the ratios of the measured values to the calculation values according to the superposition method is 1.039, and the mutant factor is 0.039. As a result, it is feasible to adopt “up-dated directive rules of SRC structures” and superposition method to calculate the normal section bending strength of SRLC beams.
Keywords:steel reinforced lightweight aggregate concrete(SRLC); beams; bending strength; calculation method
建設(shè)部科技研究項目(01-2-20)。作者簡介：劉凡(1965-)，男，副教授，工學(xué)碩士。
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