CAJ | 학술논문

通过构建滚石棚洞冲击系统非线性集中质量模型，结合Meyer非线性接触定律，运用能量原理研究了滚石冲击下棚洞结构(普通棚洞和耗能棚洞)的动力响应，在此基础上研究棚洞板在滚石冲击荷载下的抗冲切计算。通过实例计算表明，耗能减震棚洞能很好地吸收滚石冲击能量，大幅度降低滚石冲击力，有效提高混凝土板抗冲切能力，是一种理想的滚石防护措施。
통과구건곤석붕동충격계통비선성집중질량모형，결합Meyer비선성접촉정률，운용능량원리연구료곤석충격하붕동결구(보통붕동화모능붕동)적동력향응，재차기출상연구붕동판재곤석충격하재하적항충절계산。통과실례계산표명，모능감진붕동능흔호지흡수곤석충격능량，대폭도강저곤석충격력，유효제고혼응토판항충절능력，시일충이상적곤석방호조시。
A mass spring system was given to model the impact system between rock-fall and shed tunnel. Considering the Meyer nonlinear contact law, we used the energy principle to study the shed tunnel’s dynamic response during rock-fall’s impact, and then the punching resistance ability was calculated. The numerical example indicated that the energy dissipative shed tunnel could absorb the impact energy effectively, also greatly reduced the impact force and improved the punching resistance ability of concrete, which all showed that this is an ideal protection structure to avoid rock-fall.