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中文摘要：
针对多种因素可能对诱导缝开裂产生的影响，进行了碾压混凝土单向间隔诱导缝和双向间隔诱导缝轴拉试验。通过对试验结果进行分析，得到了诱导缝等效强度与诱导片数量及削弱度的关系。通过荷载位移和荷载应变曲线对碾压混凝土诱导缝断裂扩展规律进行了分析，得到了诱导缝由起裂向稳定扩展临界荷载在最大荷载的50％-60％之间等结论。
英文摘要：
According to some factors＇ effect on fracture of crack directors, the axial tension tests for unidirectional interval crack directors＇ and bilateral interval crack directors specimens were carried out.The relationship between equivalent strength for crack director and the number of crack director and weaken level was gotten by analyzing the test results.the fracture expand law for RCC crack director was analyzed through the load displacement and load-strain curves, and it is indicated that critical load between initial fracture and steady fracture for crack director is the 50%-60% of the max load.
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