可更换粘弹性连梁10层剪力墙结构的抗震设计与工程实践

IF 1.8 3区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY

Structural Design of Tall and Special Buildings Pub Date : 2023-03-20 DOI:10.1002/tal.2010

Ying Zhou, Xiaofang Liu, Yi Xiao, Hao Wu, Meng Wang

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引用次数: 0

摘要

具有可替换能量耗散元件的结构是提高建筑弹性的有吸引力的系统。这些结构的损坏主要限于耗散元件，这些元件可以在地震后更换。在耗能元件中，粘弹性阻尼器(VEDs)即使在很小的变形下也能耗能，同时提供稳定的疲劳性能，这有利于高层建筑抵抗风和地震载荷。本文介绍了某10层可更换粘弹性连接梁剪力墙建筑的抗震设计工程实例。采用一种可忽略频率相关性的新型粘弹性材料对墙墩提供稳定约束。举例说明了设计细节，包括ved、不可更换段和可拆卸连接。建立了可更换结构在动载荷作用下的数值模型，并对其进行了分析。结果证实，可更换粘弹性耦合梁的实施改善了结构的抗震性能。与传统的耦合剪力墙结构相比，连接梁端塑性转动显著减小，最大可达41.4%。

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Seismic design and engineering practice of 10‐story shear wall structure with replaceable viscoelastic coupling beams

Structures with replaceable energy‐dissipating elements are attractive systems for improving building resilience. Damage in these structures is mainly limited to dissipating elements, which can be replaced after earthquakes. Among the energy‐dissipating elements, viscoelastic dampers (VEDs) can dissipate energy even under small deformations while providing stable fatigue performances, which benefits high‐rise buildings in resisting both wind and earthquake loadings. This paper presents the seismic design of an engineering practice of a 10‐story shear wall building with replaceable viscoelastic coupling beams. A new type of viscoelastic material that has negligible frequency dependency is adopted to provide stable constraint for the wall piers. The design details, including VEDs, nonreplaceable segment, and the detachable connection, are exemplified. The numerical model of the replaceable structure is established and analyzed under dynamic loadings. Results confirm that the implementation of replaceable viscoelastic coupling beams improves structural seismic performance. The plastic rotation at the end of the coupling beam is significantly reduced up to 41.4% compared with the traditional coupled shear wall structure.

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来源期刊

Structural Design of Tall and Special Buildings 工程技术-工程：土木

CiteScore

5.30

自引率

4.20%

发文量

审稿时长

6-12 weeks

期刊介绍： The Structural Design of Tall and Special Buildings provides structural engineers and contractors with a detailed written presentation of innovative structural engineering and construction practices for tall and special buildings. It also presents applied research on new materials or analysis methods that can directly benefit structural engineers involved in the design of tall and special buildings. The editor''s policy is to maintain a reasonable balance between papers from design engineers and from research workers so that the Journal will be useful to both groups. The problems in this field and their solutions are international in character and require a knowledge of several traditional disciplines and the Journal will reflect this. The main subject of the Journal is the structural design and construction of tall and special buildings. The basic definition of a tall building, in the context of the Journal audience, is a structure that is equal to or greater than 50 meters (165 feet) in height, or 14 stories or greater. A special building is one with unique architectural or structural characteristics. However, manuscripts dealing with chimneys, water towers, silos, cooling towers, and pools will generally not be considered for review. The journal will present papers on new innovative structural systems, materials and methods of analysis.