期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Experimental research on shear carrying capacity of H-steel concrete composite beam with small shear span ratio 被引量:1
1
作者 王钧 赵天石 +1 位作者 谢恒燕 郑文忠 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2010年第3期398-400,共3页
In order to investigate shear carrying capacity of H-steel concrete beam with small shear span ratio,shear test on 5 H-steel concrete composite beams with small span ratio (from 0.7 to 1.1) are reported,including test... In order to investigate shear carrying capacity of H-steel concrete beam with small shear span ratio,shear test on 5 H-steel concrete composite beams with small span ratio (from 0.7 to 1.1) are reported,including test design,test scheme,test method,failure characteristics and test results. Influences of shear span ratio,web of H steel and concrete on shear carrying capacity of this kind of beam are investigated. The main components comprising shear bearing capacity are analyzed. The results show that with the shear span ratio increasing,the contribution of web of H steel and concrete on shear carrying capacity decrease. Based on test data,the calculation formula of shear carrying capacity for this beam is established by curve fitting. 展开更多
关键词 CONCRETE H-steel composite beam shear span ratio shear carrying capacity
下载PDF
Experimental Research on Structural Behaviors of Glulam I-Beam with a Special-Shaped Section 被引量:6
2
作者 Ruyuan Yang Chaokun Hong +2 位作者 Xiaofeng Zhang Quan Yuan Youfu Sun 《Journal of Renewable Materials》 SCIE EI 2020年第2期113-132,共20页
In order to enhance the bearing capacity of structural components,save materials,and reduce cost,a glued laminated timber(glulam)I-beam that is theoretically suitable for engineering application was proposed.In this s... In order to enhance the bearing capacity of structural components,save materials,and reduce cost,a glued laminated timber(glulam)I-beam that is theoretically suitable for engineering application was proposed.In this study,18 glulam specimens were fabricated using larch dimension lumber and resorcinol-formaldehyde resin.Four-point bending tests were carried out to compare the ultimate bearing capacity,strain,and deflection of various specimens.The results showed that:(1)The typical failure mode at bending is the web shear failure parallel to grain.Before the failure,cracks and sounds appear at the beam web,which represent the sudden brittle failure.(2)The cross-sectional strain of glulam beam changed linearly with the beam height,indicating that the plane section assumption was basically established.(3)Stiffener could improve the initial flexural stiffness of glulam beam,which experiences an increase of 28.21%.Larger the shear span ratio,smaller the initial flexural stiffness.The initial flexural stiffness improves by 10-23.5%with the increase in the thickness of the lower flange.(4)The effects of stiffener and shear-span ratio on shear strength are relatively significant.After the stiffeners are set at the support and the loading point in pairs,the shear strength of the glulam beam increases by 15.05%averagely.With the increase in the shear-span ratio,the shearing strength of the glulam I-beam gradually reduces.The equation of the shearing strength with the shear span ratio is obtained,which is shown by high fitting precision.(5)The shear strength correlation,as proposed by Soltis and Rammer,is suitable not only for rectangular beams,but also for glulam I-beams. 展开更多
关键词 GLULAM I-BEAM STIFFENER shear span ratio flange thickness
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部