\r黄兴淮 ^{1, 2}，张 一 ²，李奉南²，赵孟喆 ²，谢绍文²，徐赵东\r^{1, 2}\r
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AuthorsHTML:\r黄兴淮 ^{1, 2}，张 一 ²，李奉南²，赵孟喆 ²，谢绍文²，徐赵东\r^{1, 2}\r
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AuthorsListE:\rHuang Xinghuai^{1, 2}，Zhang Yi²，Li Fengnan²，Zhao Mengzhe²，Xie Shaowen²，Xu Zhaodong\r^{1, 2}\r
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AuthorsHTMLE:\rHuang Xinghuai^{1, 2}，Zhang Yi²，Li Fengnan²，Zhao Mengzhe²，Xie Shaowen²，Xu Zhaodong\r^{1, 2}\r
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Unit:\r1. 东南大学混凝土及预应力混凝土结构教育部重点实验室，南京 210096；
2. 东南大学土木工程学院，南京 210096\r
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Unit_EngLish:\r1. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education，Southeast University，Nanjing 210096，China；
2. School of Civil Engineering，Southeast University，Nanjing 210096，China\r
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Abstract_Chinese:\r\r为了降低黏弹性减震器的整体硫化成本以及防止其胶黏层提前开裂，对黏弹性减震器进行了改进设计，通过在钢板上增设凹槽和采用螺栓增加侧压力两种方法制作出适用于冷胶黏接的新型黏弹性装配式减震器．然后，对新型装配式减震器在不同工况下进行了力学性能试验，研究其耗能特点与破坏模式，并通过力\r-\r位移滞回曲线计算出黏弹性阻尼材料的储能模量以及损耗因子，进而得出装置构造、侧压力、加载频率与位移幅值对减震器力学性能的影响规律．试验结果表明：在钢板增设凹槽以及采用螺栓增加侧压力均能提高减震器耗散振动能量的能力，而且位移幅值和加载频率越大，耗散的能量越多；与无凹槽试件相比，凹槽的存在使减震器在不同侧压力下储能模量增大\r12.2\r％\r～\r27.4\r％\r，损耗因子增大\r8.2\r%\r～\r9.5\r％\r；当侧压力从\r0\rMPa\r增加至\r0.833MPa\r时，对于新型黏弹性装配式减震器，储能模量增大\r16.0\r％\r，损耗因子增大\r15.2\r％\r．因此，采用适当的外部条件以及合理的内部构造，可以充分发挥阻尼材料的耗能性能，大大提升减震器的减震效果．\r\r
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Abstract_English:\r\rTo reduce the costs of the overall vulcanization for viscoelastic dampers and avoid their premature cracking on the adhesive layer\r，\ra new viscoelastic assembly damper was designed by adding grooves to the steel plate and increasing the side pressure using bolts\r．\rThen\r，\rthe mechanical properties of the new viscoelastic assembly damper were experimentally tested under different working conditions and the energy consumption characteristics and failure modes were analyzed\r．\rFinally\r，\rthe storage modulus and loss factor of the damping material were calculated from the force-displacement hysteresis curves and the influences of the steel plate structure\r，\rside pressure\r，\rloading frequency\r，\rand displacement amplitude on the mechanical properties of the dampers were investigated\r．\rThe experimental results indicated that the addition of grooves to the steel plate and the increase of the side pressure can increase the capability of the dampers to dissipate vibration energy\r，\rwherein the greater the displacement amplitude and loading frequency are\r，\rthe more the energy is dissipated\r．\rCompared with the test case without grooves\r，\rthe addition of grooves increases the storage modulus of the dampers by 12.2\r%\r to 27.4\r%\r and the loss factor by 8.2\r%\r to 9.5\r%\r．\rMoreover\r，\rfor the new viscoelastic assembly damper\r，\rthe storage modulus increases by 16.0\r%\r and the loss factor increases by 15.2\r%\r when the side pressure increases from 0MPa to 0.83MPa\r．\rAs a result\r，\rwith the appropriate external conditions and a reasonable internal mechanical structure\r，\rthe energy consumption performance of the damping material can be fully utilized\r，\rand the energy consumption effect of the dampers can be considerably improved\r．\r\r
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Keyword_Chinese:黏弹性材料；黏弹性装配式减震器；性能试验；侧压力；黏接破坏\r

Keywords_English:viscoelastic material；viscoelastic assembly damper；performance experiment；side pressure；bond damage\r


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