AUTOMATICAL MEASURING SYSTEM OF LOAD-DISPLACEMENT CURVES INCLUDING POST-FAILURE REGION OF CONCRETE SPECIMENS
AUTOMATICAL MEASURING SYSTEM OF LOAD-DISPLACEMENT CURVES INCLUDING POST-FAILURE REGION OF CONCRETE SPECIMENS
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混凝土试件破坏后区域荷载-位移曲线自动测量系统
DOI：
10.2208/jscej.1985.354_119
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Sadatoshi Ono
中科院分区：
文献类型：
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作者：
W. Koyanagi;K. Rokugo;Sadatoshi Ono
刚性试验机通常用于测量混凝土试件有下落分支的荷载-位移曲线。然而，当试件破坏不稳定(不可控)时，刚性试验机不足以测量具有下降分支的荷载-位移曲线。本文从突变理论的角度讨论了试件的失稳破坏问题，提出了一种新的具有下落分支的荷载-位移曲线自动测量系统。利用该系统测量了高强混凝土和高强轻质混凝土受压试件(∅10×20 cm)的荷载-位移曲线。
A stiff testing machine is generally used to measure load-displacement curves having falling branch of concrete specimens. However, when the failure of specimens is unstable (uncontrollable), the stiff testing machine is insufficient to measure the load-displacement curves having falling branch. In this paper, the unstable failure of specimens was discussed from viewpoint of catastrophic theory, and a new system to measure automatically the load-displacement curves having falling branch was proposed. The load-displacement curves of compressive specimens (∅10×20cm) of high strength concrete and high strength light-weight concrete were measured by the new system.