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題名 | 反覆側向載重對開口木結構牆面水平剪斷性質之影響=Effect of Cyclically Lateral Load Application on the Horizontal Shearing Properties of Wood-framed Wall Held Various Openings |
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作者 | 葉民權; 楊宗翰; 劉錦坤; 陳明益; 戴羽楨; | 書刊名 | 林產工業 |
卷期 | 22:4 民92.12 |
頁次 | 頁253-263 |
分類號 | 441.562 |
關鍵詞 | 反覆載重; 木結構牆; 剪斷剛性; 水平剪斷強度; Cyclic load; Wood-framed wall; Shear stiffness; Racking strength; |
語文 | 中文(Chinese) |
中文摘要 | 本研究以框組壁工法進行2.44 x 3.65m實大尺寸之剪力牆主體結構組合,並以柳桉合板做為牆面護板,雲杉-松-冷杉結構材做為框架材,針對牆面不同開口之尺寸設計,利用新的測試程序探討牆面在反覆側向載重下之水平剪斷抵抗效能,做為業者施工之參考。結果顯示,窗開口120、160、200cm之牆試體的水平剪斷強度值與單向載重測定程序之結果僅有些為降低,而剪斷剛性則明顯降低32%、37%及36%。80cm雙門開口之剪斷剛性亦降低26%,而80cm單門開口及200cm車庫開口在水平剪斷強度及剛性則無降低。在相同開口寬度條件下,門開口牆之剪斷強度與剛性均較窗開口低23%,韌性降低25%。牆面開口處以角鐵補強可以改善開口處局部牆面之變形,其中雙門開口牆面之水平剪斷強度與剛性可提高19%及24%,但對部分之開口設計則無明顯改善。 |
英文摘要 | The actual sizes of 2.44 x 3.65 m wood-framed shear walls were constructed with light-framing approaches in this study, while the wall sheathed with Lauan plywood panels and the frames assembled with SPF structural lumbers. The horizontal shear performance of walls with various opening types subjected to the cyclically lateral load procedures were investigated. The results indicated that the racking strength of the walls with 120, 160, and 200 cm window openings were only slightly lower than that of the walls subjected to monotonic load application, while the values of shear stiffness were 32%, 37%, and 36% significantly lower, respectively. Similarly, there was 26% lower in shear stiffness for the walls with double 80 cm-wide door openings subjected with cyclically lateral load application. However, both the values of racking strength and shear stiffness for the walls with single 80 cm-wide door opening or 200 cm-wide garage opening were not reduced as compared with those of walls subjected to monotonic load application. 8 0th the racking strength and shear stiffness of the wood -framed walls with door openings were 23% lower than that of the walls with window openings under the same opening width condition, and the values of toughness was 25% lower. The deformation around openings of the wood-framed walls could be improved through the reinforcement of steel angle braces at the comers of openings. The racking strength and shear stiffness of the walls with double door openings increased 19% and 24%, respectively, by putting angle braces on the comers of openings, while significant improvement were not found for the walls with some other types of openings. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。