摘要
对混凝土的抗剪强度、静力及动力剪切模量和弹性模量作了实验研究分析。混凝土的抗剪强度和抗压强度之比，随混凝土的强度而异，其值约为０．０９５～０．１２１。混凝土的劈裂抗拉强度通常小于抗剪强度。混凝土经静力或动力实测试验，其剪切模量和弹性模量之比约为０．４０。静力正割剪切模量系由抗扭试验的扭矩－转动曲线决定。高强混凝土的静力剪切模量和动力剪切模量值较接近普通混凝土，混凝土的弹性模量亦然。
Experimental studies were conducted on concrete shear strength, static and dynamic modulus of rigidity and Youngs modulus. The ratio of concrete shear strength and compressive shength is in the range from 0.095 to 0. 121, which depends on the concrete strength. Concrete splining tensile strength is generally less than its shear strength. The ratio of concrete modulus of rigidity to Youngs modulus is about 0.40 by either static or dynamic experimental test. Static secant modulus of rigidity is determined from the torque-twist curve of torsional test. Either the values of the static modulus of rigidity and dynamic modulus of rigidity of the values of the static Youngs modulus and dynamic Youngs mod- ulus are more close for high-strengh concrete than for nounal strength concrete.
出处
《土木工程学报》
EI
CSCD
北大核心
1999年第2期47-52,共6页
China Civil Engineering Journal
关键词
混凝土
抗剪强度
剪切模量
弹性模量
concrete, shear strength, modulus of rigidity, Youngs modulus
