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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators
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A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators

机译：一种新型的钢框架系统，用于木材平台框架建筑物的抗震保护。用滞回耗能器实现

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This paper describes a new seismic protection system for timber platform frame buildings, either for new construction or retrofit. The system consists in connecting the timber frame to a steel structure that includes hysteretic energy dissipators designed to absorb most of the seismic input energy thus protecting the timber frame and the other steel members; alternatively, the system might use other types of dissipative devices. The steel structure consists of four steel stacks (located at each of the four facades) and steel collectors embracing each slab; the stacks and the collectors are connected, at each floor level, through the energy dissipators. The steel structure is self-supporting, that is, the timber frame is not affected by horizontal actions and can be designed without accounting for any seismic provision; in turn, the steel members do not participate in the main load-carrying system. The timber-steel interface is designed to avoid any stress concentration in the transfer of horizontal forces and to guarantee that the yielding of the dissipators occurs prior to any timber failure. The energy dissipation capacity of the suggested system is discussed, and an application example on a six-story timber building is presented; this case corresponds to highly demanding conditions because of the relatively large building height and weight, the high local seismicity, and the soft soil condition. This research belongs to a wider project aiming to promote the structural use of timber by improving the seismic capacity of wooden buildings; this research includes experiments and advanced numerical simulation. Copyright (c) 2014 John Wiley & Sons, Ltd.
机译：本文介绍了一种用于木材平台框架建筑物的新型抗震保护系统，无论是新建建筑还是翻新建筑。该系统包括将木框连接到钢结构，该钢结构包括设计用于吸收大部分地震输入能量的滞回耗能器，从而保护木框和其他钢构件；或者，系统可能使用其他类型的耗散设备。钢结构由四个钢叠（分别位于四个立面中的每个立面）和围着每个平板的集钢器组成。烟囱和集热器在每个楼层通过消能器相连。钢结构是自支撑的，也就是说，木构架不受水平作用的影响，可以在不考虑任何地震规定的情况下进行设计；反过来，钢构件不参与主要的承载系统。木材-钢界面的设计避免了水平力传递中的任何应力集中，并确保耗散器的屈服发生在任何木材失效之前。讨论了所建议系统的耗能能力，并给出了在六层木结构建筑中的应用实例。由于建筑物的高度和重量相对较大，局部地震活动性较高以及软土条件，因此这种情况对应于苛刻的条件。这项研究属于一个更广泛的项目，旨在通过提高木制建筑的抗震能力来促进木材的结构使用；这项研究包括实验和高级数值模拟。版权所有（c）2014 John Wiley＆Sons，Ltd.

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