论文部分内容阅读
为进一步促进铅阻尼器在工程中的应用,针对常见的排架结构,研制了一种铅剪切阻尼器,通过低周往复加载试验,逐个分析阻尼材料铅的有效剪切面积、受剪区厚度、剪切截面形式、加载位移幅值、加载频率、加载次数等因素对阻尼器耗能性能的影响。试验结果表明,设计的阻尼器的阻尼力—位移滞回曲线饱满,耗能性能良好,符合双线性力学模型,并对试验中两个典型型号的阻尼器进行了数值模拟分析,通过对比数模值和试验值,证明了数值计算模型的实用性,为阻尼器在结构体系中的减震应用奠定了基础。
In order to further promote the application of lead dampers in engineering, a lead shear damper was developed for the common truss structure. Through the low-cycle reciprocating loading test, the effective shear area of lead was analyzed one by one. Thickness, shear cross-section, loading displacement amplitude, loading frequency, loading times and other factors on the energy performance of the damper. The experimental results show that the damping force-displacement hysteresis curve of the designed damper is full and its energy dissipation performance is good, which is in accordance with the bilinear mechanics model. The numerical simulations of two typical dampers in the experiment are carried out. The model and experimental values prove the practicability of the numerical calculation model and lay the foundation for the damper application in the structural system.