由 BRB 支撑的圆柱格状屋顶的地震响应评估：基于中国规范和日本法规的响应比较

Q1 Arts and Humanities

International Journal of Space Structures Pub Date : 2024-02-23 DOI:10.1177/09560599241233385

Y. Takiuchi, S. Kato, S. Nakazawa, Yutaka Niho

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引用次数: 0

摘要

本研究探讨了诱导单层格状屋顶下部结构屈服的设计策略的有效性。该屋顶跨度为 28.9 米，半开角为 30°。它由一个由屈曲约束支撑（BRB）组成的延性下部结构支撑，下部结构设计为在基底剪切系数为 0.40 的情况下开始屈服。采用与中国和日本设计加速度反应谱相对应的人工地震运动对反应进行了分析。结果表明，与由弹性下部结构支撑的屋顶相比，屋顶内部的动态放大效应被大大抑制。此外，屋顶对日本和中国频谱的响应差异可以忽略不计，这表明研究成果具有相互适用的潜力。

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Earthquake response evaluation of cylindrical latticed roofs supported by BRBs: Comparison of responses based on Chinese codes and Japanese regulations

The present study investigates the effectiveness of design strategies that induce yielding in the substructure of a single-layer latticed roof. The roof has a span of 28.9 m and a half-open angle of 30°. It is supported by a ductile substructure consisting of buckling-restrained braces (BRBs), and the substructure is designed to initiate yielding under a base shear coefficient of 0.40. The responses are analyzed using artificial earthquake motions corresponding to Chinese and Japanese design acceleration response spectra. The responses demonstrated that the dynamic amplification within the roof is considerably suppressed in comparison with a roof supported by elastic substructures. The negligible variance in the roof responses to the Japanese and Chinese spectra is also illustrated, suggesting the potential for reciprocal applicability of research results.

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来源期刊

International Journal of Space Structures Arts and Humanities-Conservation

CiteScore

2.00

自引率

0.00%

发文量

期刊介绍： The aim of the journal is to provide an international forum for the interchange of information on all aspects of analysis, design and construction of space structures. The scope of the journal encompasses structures such as single-, double- and multi-layer grids, barrel vaults, domes, towers, folded plates, radar dishes, tensegrity structures, stressed skin assemblies, foldable structures, pneumatic systems and cable arrangements. No limitation on the type of material is imposed and the scope includes structures constructed in steel, aluminium, timber, concrete, plastics, paperboard and fabric.