剪跨比(λ)指构件截面弯矩与剪力和有效高度乘积的比值。对于简支梁,剪跨比为梁上集中荷载作用点到支座边缘的最小距离a(a称剪跨)与截面有效高度h0之比。 以λ=a/h0表示。它反映计算截面上正应力与剪应力的相对关系,是影响抗剪破坏形态和抗剪承载力的重要参数。在其它因素相同时,剪跨比越大,抗剪能力越小。当剪跨比大于3时,抗剪能力基本不再变化。
... 高跨比depth-span ratio 剪跨比shear-span ratio 桥面净空 (qiao mian jing kong)clearance aboe bridge deck ...
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... 配筋率 ratio of reinforcement 剪跨比 ratio of shear span to effective depth 横向钢筋 transverse reinforcement ...
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小剪跨比 small shearing-span ratio
Quasi-static tests of 4 pre-cast reinforced concrete shear wall specimens with shear span ratio of 2.25 were introduced. The vertical reinforcements of the specimens were grouted in holes and spliced indirectly.
介绍了4个剪跨比为2.25的预制钢筋混凝土剪力墙试件的拟静力试验,试件的竖向钢筋采用留洞浆锚、间接搭接的方式连接。
参考来源 - 竖向钢筋留洞浆锚间接搭接的预制剪力墙抗震性能试验The influence of cracks due to longitudinal reinforcement corrosion on shear strength of beam is effective. The failure model of beams is determined by the shear-span ratio.
试验结果表明:纵筋锈蚀使纵筋对混凝土的约束降低,纵筋锈蚀所产生锈胀裂缝对试验梁抗剪强度影响较大,剪跨比决定了试验梁的破坏形态,纵筋锈蚀对梁斜截面抗剪承载力有较大影响。
参考来源 - 纵筋锈蚀对无腹筋梁斜截面受剪承载力的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
给出了分体柱轴压比、剪跨比等概念参数的定义。
The definitions of parameters of axial compression ratio and shear span ratio of split columns were given.
钢管混凝土柱的受剪承载力与轴压比、剪跨比有关。
The shear strength of CFST columns was correlated to the axial force ratio and the shear-span ratio.
试件参数包括钢管壁厚、混凝土强度、剪跨比和轴压比。
Wall thickness of steel tube, concrete strength, shear-span ratio and axial force ratio were considered as test parameters.
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