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首页> 外文会议>International Conference on Advances in Building Technology Vol.2, Dec 4-6, 2002, Hong Kong, China >TOWARDS NEXT GENERATION SEISMIC ISOLATION TECHNOLOGY
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TOWARDS NEXT GENERATION SEISMIC ISOLATION TECHNOLOGY

机译：迈向下一代地震隔离技术

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摘要

Seismic isolation modeled as a single degree-of-freedom (S-DOF) system has been successfully applied to vibration reduction of equipment and structures in the fields of mechanical and aerospace engineering for many decades. More recently, the civil engineering profession has gradually introduced the technology for seismic protection of infrastructure systems (buildings, bridges, nonstructural components, lifeline systems, etc.) against strong earthquake ground motions. It has evolved as a specialty area in earthquake engineering, known as (structural) base isolation (as versus shock and vibration isolation). The application of base isolation technology in civil engineering therefore has stemmed from S-DOF models traditionally used in the mechanical/defense/aerospace industry. However, a large number of civil engineering structures are complex multiple degree-of-freedom (M-DOF) systems. Recent developments in structural dynamics, computing and experimental capacities have shown that there are shortcomings of using over-simplified S-DOF based seismic isolation design practice for civil engineering structures. This paper advances the concept of developing the next generation seismic isolation technology for civil engineering structures based on M-DOF models by first pointing out a number of key issues current technology does not address, followed by the suggestion of a hybrid semi-active/passive base isolator system to indicate future goal of developing intelligent seismic isolation bearings.
机译：建模为单自由度（S-DOF）系统的隔震已经成功应用于机械和航空航天工程领域的设备和结构减振。最近，土木工程专业逐渐引入了用于基础设施系统（建筑物，桥梁，非结构性部件，生命线系统等）的抗震保护技术，以抵抗强烈的地震地面运动。它已经发展成为地震工程学中的一个特殊领域，称为（结构）基础隔离（相对于震动和振动隔离）​​。因此，基础隔离技术在土木工程中的应用源于传统上在机械/国防/航空航天行业中使用的S-DOF模型。但是，大量的土木工程结构是复杂的多自由度（M-DOF）系统。结构动力学，计算和实验能力的最新发展表明，对于土木工程结构，使用过度简化的基于S-DOF的隔震设计实践存在缺陷。通过首先指出当前技术无法解决的许多关键问题，然后提出混合半主动/被动混合动力的建议，提出了基于M-DOF模型开发用于土木工程结构的下一代地震隔离技术的概念。基础隔振系统，以指示开发智能隔震轴承的未来目标。

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