查詢結果分析
來源資料
頁籤選單縮合
題 名 | 合板剪力牆在模擬動態載重下之結構穩定性能研究=Structural Performance of Plywood Shear Wall Subjected to Pseudo Dynamic Lateral Loads |
---|---|
作 者 | 葉民權; | 書刊名 | 林產工業 |
卷 期 | 19:1 2000.03[民89.03] |
頁 次 | 頁23-36 |
分類號 | 474.3 |
關鍵詞 | 剪力牆; 擬動態試驗; 釘接合; Plywood shear wall; Pseudo dynamic test; Nail joint; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究旨在探討以美式木質結構牆構架所組成之合板剪力牆以及合板釘接實木組合在模擬動態試驗及循環載重試驗條件下之載重與變位關係。研究中所採用之EL centro NS地震波以衝擊加速度法進行有限差分模擬計算並施力於剪力牆及合板釘接位置,結果顯示在產生最大加速度341.7 gal後0.42秒之落遲,才形成最大水平抵抗力3179 kgf及相對應之最大位移1.784 cm,同時在地震波中後期,即使是較小之地表加速度,亦產生較大之水平抵抗力及有較大之位移。剪力牆在強度量1/600、1/300、1/120、1/60、1/30、1/17等階段之循環載重試驗中,於第五階段可達最大水平載重抵抗值2262 kgf,同時牆面之載重位移關係與板緣釘接合之載重滑動趨勢十分接近。合板實木釘接之循環載重試驗中,於第五階段時之最大側向引拔抵抗值為131.7 kgf,依釘接強度簡化法估算剪力牆之受力行為時,其最大水平載重值相差僅4.6%。在合板實木釘接擬動態試驗中,釘接位置之最大位移及最大載重抵抗力發生時間與合板剪力牆之結果相差2.52秒,同時所產生之載重抵抗力變化幅度也較大,地震波中後期之負向位移也產生偏離,造成載重-滑動行為與剪力牆之受力行為有所差異。 |
英文摘要 | The purpose of the study is to investigate the load-displacement relationship of plywood shear wall and plywood nail joint subjected to pseudo dynamic loads and cyclic loads. The impact acceleration method was employed to simulate EL Centro NS earthquake waves in finite difference calculation and the resulting displacement were applied to the shear wall and nail joints. The results indicated that the time when the maximum horizontal load resistance of 3179 kgf and corresponding displacement of 1.784 cm of shear wall occurred was delayed about 0.42 second from the time when maximum acceleration of 341.7 gal of earthquake wave occurred at the early stage; and the large displacement of shear wall could also be obtained even when the acceleration was reduced during the middle stage of earthquake wave in the pseudo dynamic test. The cyclic test of shear wall was performed according to the shear deformation at the levels of 1/600, 1/300, 1/120, 1/60, 1/30, and 1/17 radiant. The horizontal load resistance reached the maximum value of 2262 kgf at the fifth level and then decreased gradually for the following cycle. The relationship of load-displacement of shear wall under cyclic loads could be estimated based on the nail displacement measured in the direction of parallel and perpendicular to the plywood panels. The maximum value of 131.7 kgf for lateral resistance of nail joint was obtained at fifth stage during the cyclic test. The load-displacement relationship of shear wall also could be estimated by nail strength based on the simplified method with 4.6% difference in estimated maximum horizontal resistance. There was 2.52-second time diffecence for the time when maximum displacement and maximum lateral resistant force occurred for nail joint subjected to pseudo dynamic test as compared to that of shear wall. Greater changes in the lateral resistant force was found and the displacement of nail joint during the following stages of simulated earthquake waves deviated from the center, in which the relationship of load-slip of plywood nail joint was different from that of shear wall.. |
本系統中英文摘要資訊取自各篇刊載內容。