鋼板混凝土複合牆反覆載重下行為研究

The Behavior of Steel Concrete Composite Wall Subjected to Cyclic Loading

鄭鵬成(Peng-Cheng Zheng)

指導教授 ： 黃尹男

國立臺灣大學/工學院/土木工程學研究所/碩士(2014年)

https://doi.org/10.6342/NTU.2014.00216

摘要

鋼板混凝土複合剪力牆系統為優秀的耐震結構系統，其牆體由兩面鋼板與混凝土材料複合而成，而鋼板與混凝土之間則以剪力連接器做為力量傳遞之構件，此剪力牆系統常配置於核能電廠建築物中作為抗側力系統。目前所使用針對鋼板混凝土複合牆設計之規範AISC N690(2012)中並未針對平面內撓曲強度提出設計公式，本計畫分析相關文獻之實驗資料，分別利用有限元素分析軟體、斷面分析軟體、理論推導等方法對鋼板混凝土牆平面內撓曲強度與初始勁度評估進行研究，並與實驗結果比較。再者，為了要瞭解鋼板材料之挫屈行為對鋼板混凝土複合牆反覆載重行為之影響，本計畫利用有限元素分析軟體針對鋼板材料之挫屈行為進行分析。
目前關於鋼板混凝土複合剪力牆抗撓曲之試驗數據甚少，本研究設計了四座鋼板混凝土複合剪力牆試體，未來試驗結果可用於印證本研究所提出的撓曲強度與初始勁度評估方式，並探討不同斷面鋼材比（斷面鋼材比定義為鋼板混凝土複合牆斷面中鋼板材料面積與混凝土材料面積之比值）與鋼板細長比(與鋼板材料之挫屈行為有關)對鋼板混凝土複合牆於反覆載重行為下之影響且與分析之結果比較。

關鍵字

鋼板混凝土複合牆 ； 撓曲強度 ； 鋼板材料之挫屈行為 ； 斷面分析 ； 反覆載重試驗

並列摘要

Steel-Concrete Composite Walls (SC Walls) - are common and important structural elements in nuclear power plants (NPPs). Seismic behavior of SC Walls has tremendous impact to the seismic performance of nuclear power plants. Seismic Probabilistic Risk Assessment (SPRA) has been well-recognized as the most comprehensive and complete methodology to assess seismic risk of nuclear power plants. SPRA requires fragility data of structural and non-structural components in NPPs. Seismic vulnerability analysis on SC walls becomes essential to improve the understanding on seismic behavior of SC walls and to aid in the development of fragility curves for SC walls.
　　In this study, the initial stiffness and in-plane later-force strength of flexure-critical and flexure-shear-combined SC walls were studied using 1) basic principles (i.e., equilibrium, compatibility, and constitutive law of steel and concrete), 2) section-analysis software XTRACT, and 3) FEM program ABAQUS. The results of the three procedures were compared with experimental data in literatures. A plan for cyclic loading tests of four SC walls is also presented. The tests will be conducted in late 2014 and the results will be used to validate the conclusions of this study.

並列關鍵字

Steel Concrete Composite Wall ； Moment Strength ； Buckling Behavior of Steel Plate ； Section Analysis ； Cyclic Loading

參考文獻

Varma, A.H., Zhang, K., Chi, H., Booth, P. and Baker, T. (2011b). "In-plane shear behavior of SC composite walls: theory vs. experiment," Proceedings of the 21st IASMiRT Conference (SMiRT 21), New Delhi, India, Paper ID #764.

ACI 349 (2006), “Code Requirements for Nuclear Safety-Related Concrete Structures and Commentary,”American Concrete Institute, Farmington Hills, MI.

Anwar Hosain, K. M, and Wright, H. D. 2004. “Performance of double skin-profiled composite shear walls–experiments and design equations.” Canadian Journal of Civil Engineering, Vol. 31, No. 2, pp. 204-217.

Funakoshi, A., Akita, S., Matsumoto, H., Hara, K., Matsuo, I., and Hayashi, N. Experimental study on a concrete filled steel structure Part. 7 Bending Shear Tests (Outline of the experimental program and the results), Summaries of Technical Papers of Annual Meeting, Architectural Institute of Japan, 1998, pp. 1063-1064.

Hong XX et al., (2009) “Out-of-plane Shear Strength of Steel Plate Concrete Walls Dependent on Bond Behavior”, SMiRT-20, Div-6: Paper ID# 1855, 9-14, Espoo.”