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作 者:王念恋 WANG Nianian(Guizhou Transportation Planning Survey&Design Academe Co.,Ltd.)
出 处:《广东建材》2024年第7期23-26,共4页Guangdong Building Materials
摘 要:为分析玄武岩纤维筋钢纤维混凝土梁的抗弯性能,文中开展玄武岩纤维筋钢纤维混凝土梁的受弯性能试验,分析钢纤维体积率对钢纤维混凝土梁荷载、挠度以及位移等力学响应的影响。结果表明:与普通钢筋量相比,钢纤维掺量为0.5%、1%、1.5%、2%的开裂荷载增幅分别为31.4%、43.5%、52.5%、58.3%;极限荷载增幅分别为9%、13.8%、40.6%、30.5%;钢纤维掺量为0.5%、1%、1.5%、2%的最大位移降幅分别为6.4%、9.3%、1.5%、18.3%;残余位移降幅分别为6.8%、15.1%、18.2%、5.3%;所用混凝土梁的使用荷载均占极限荷载的45%左右。In order to analyze the flexural performance of steel fiber reinforced concrete beams with basalt fiber,the flexural performance test of steel fiber reinforced concrete beams was carried out,and the influence of steel fiber volume ratio on the mechanical response of steel fiber reinforced concrete beams such as load,deflection and displacement was analyzed.The results show that the crack load increases by 31.4%,43.5%,52.5%and 58.3%when the steel fiber content is 0.5%,1%,1.5%and 2%,respectively.The ultimate load increases are 9%,13.8%,40.6%and 30.5%,respectively.The maximum displacement decreases of steel fiber content of 0.5%,1%,1.5%and 2%are 6.4%,9.3%,1.5%and 18.3%,respectively.The reduction of residual displacement is 6.8%,15.1%,18.2%and 5.3%,respectively.The working load of the concrete beams used is about 45%of the ultimate load.
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