鋼板剪力牆底層邊界柱耐震設計（一）容量設計方法與試體設計

Seismic Design of the Bottom Column in Steel Plate Shear Walls, Part 1-Capacity Deisgn and Specimens Design

李弘祺(Hung-Chi Lee) ； 李昭賢(Chao-Hsien Li) ； 蔡克銓(Keh-Chyuan Tsai)

《中國土木水利工程學刊》 24卷3期 (2012/09) Pp. 275-283

https://doi.org/10.6652/JoCICHE.201209_24(3).0006

摘要

本研究針對鋼板剪力牆底層柱進行一系列的設計方法與試驗研究，研究結果以兩篇文章介紹，第一部份介紹底層柱的容量設計方法，設計方法採用等效斜撐模型搭配簡算公式，邊界構件之設計需求以疊加法考慮鋼板內拉與構架側位移效應，並探討不同底層邊界柱塑性彎矩容量與其塑鉸位置之關係。本研究設計目標為當鋼板剪力牆系統承受最大考量地震時，限制底層柱頂保持彈性，檢核其彎矩及剪力塑鉸兩種限制狀態，但放寬柱底塑鉸至四分之一底層高。本研究採三組實尺寸兩層樓單跨鋼板剪力牆試體，用以驗證本研究建議之容量設計方法適用性，本文介紹試體設計邏輯並預測試體行為，而試驗研究結果將於第二部分詳述。

關鍵字

鋼板剪力牆 ； 容量設計 ； 底層邊界柱

並列摘要

This research focuses on the design method and experimental study of the bottom column in steel plate shear walls (SPSWs). The results are divided into two parts. In Part 1, a capacity design method, using equivalent brace model and simplified analysis procedures, for the bottom column in SPSWs is proposed. The design target is to prevent both the flexural and shear hinge from forming at top of bottom column when the SPSW is subjected to the maximum considered earthquake. However, the method allows the plastic zone to form approximately at the 1/4-height of the bottom column. In this paper, the design requirements are considered by superposition of the frame sway action and panel yielding force. The paper discusses the effects of varying the bottom-story column flexural capacity on the column plastic hinging mechanism. This paper presents the design philosophy and the predicted responses for three 2-story full scale SPSW specimens. The associated test program, results and the effectiveness of the proposed design method are discussed in Part 2.

並列關鍵字

steel plate shear walls ； capacity design ； bottom column