The captive-column and short-column effects are resulted from constructing nonstructural walls or facades to the structural system which restricts the ability of the column to deformlaterally, or from constructing horizontal structural elements at mid-height of the column leaving the column divided in two short segments, or can dynamically evolve during earthquakes when the nonstructural walls partially damaged leaving part of the column can laterally deform. This research is intended to investigate the shear capacity of these column effects as a result of using different replacement contents of basalt aggregates in medium strength concrete mix. The workability and the mechanical properties of concrete mixes using different basalt aggregates replacement content are measured and a general improvement is observed in the compressive strength and the tensile splitting strength as basalt replacement content increased to 75%. The shear strength of short columns tested under lateral load improves as the replaced aggregates increased. An equation is proposed to estimate the concrete shear strength at various basalt aggregate replacement contents.

俘获柱和短柱效应是由于在结构系统中构造非结构性墙或立面而限制了柱的横向变形能力，或者是由于在柱的中部高度构造了水平结构元素而导致将柱分为两部分短段，或者在地震过程中动态演化，非结构壁部分受损而导致部分柱子可能横向变形。这项研究旨在研究在中等强度混凝土混合物中使用不同含量的玄武岩骨料替代后这些柱效应的剪切能力。测量了使用不同玄武岩骨料替代含量的混凝土拌合料的可加工性和机械性能，观察到随着玄武岩替代量增加到75％，抗压强度和抗拉裂强度得到了总体改善。短柱在侧向荷载下的抗剪强度随着更换的骨料的增加而提高。提出了一个方程来估算不同玄武岩骨料替代含量下的混凝土抗剪强度。