鋼筋混凝土含牆結構物非線性靜力分析之研究

A Nonlinear Static Analysis Study of a Rc Structure With Walls

10.6849/SE.201506_30(2).0004

陳信宏(Hsin-Hung Chen)；蔡益超(I-Chau Tsai)

RC牆 ； 等值柱 ； 側向載重－側向位移反應 ； 非線性靜力分析 ； RC wall ； equivalent column ； lateral load-lateral displacement response ； nonlinear static analysis

結構工程

30卷2期（2015 / 06 / 01）

61 - 85

繁體中文

瞭解RC牆其側向載重-側向位移反應，乃是RC含牆結構物進行非線性靜力分析及評估其耐震能力的重要工作。本文說明如何適當地計算軸力－彎矩作用下RC牆之彎矩－彎曲位移反應及使用修正壓力場理論（MCFT）與考量RC牆高深比（Hin／Lw）之影響，計算軸力-剪力作用下RC牆之剪力-剪位移反應。經上述兩反應的結合，可以合理地決定RC牆於軸力－剪力－彎矩互制下之側向載重-側向位移反應。此外，本文於SAP2000或ETABS程式下，建立一6層RC含牆及一6層開氣窗RC含牆構架，說明如何以等值柱模擬RC牆，並設置相關之塑鉸以進行非線性靜力分析，提供給工程師於應用上作為參考。

Knowing a lateral load-lateral displacement response of an RC wall is an important work of executing nonlinear static analysis and evaluating earthquake-resistant capacity of an RC structure with RC walls. This paper explains how to calculate the moment-bending displacement response of an RC wall under axial load and moment properly, and calculate the shear-shear displacement response of the RC wall under axial load and shear by using the modified compression-field theory (MCFT) with considering the effect of the height-depth ratio (Hin/Lw). By integrating the moment-bending displacement response and the shear-shear displacement response, the lateral load-lateral displacement response of the RC wall under axial load-moment-shear interaction can be decided reasonably. In addition, to provide an application illustration for engineers, this paper establishes a 6 floor RC structure with walls and a 6 floor RC structure with walls containing windows to explain how to use an equivalent column model to simulate an RC wall on SAP2000 or ETABS nonlinear static analysis.