Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/13560
標題: 含綱線網剪力筋梁受動態荷重之撓曲行為
Flexural Behavior of Reinforced Concrete Beams with Welded Wire Fabric as Shear Reinforcement under Cyclic Loading
作者: 吳文欽
Wu, Wen Ching
關鍵字: RC beam;混凝土梁
出版社: 土木工程學系
摘要: 
摘 要
目前對於以含鋼線網剪力筋梁受動態載重之相關研究 並不多,為
了使鋼線網更廣泛的應用在土木工程,故擬定 本研究,以進一步了解
含鋼線網剪力筋梁受動態荷重之撓 曲行為。本研究探討以鋼線網(WWF)
及傳統鋼筋為剪力筋 之矩形梁,在動態荷重作用下之撓曲行為,實驗
變數為混 凝土強度、剪跨比、剪力筋間距、正負彎矩鋼筋比、拉力
鋼筋比、載重歷程型態。總共製作12支含鋼線網剪力筋梁 及2支傳統腹
筋梁。 試驗結果顯示:(1).因縱
向鋼線延展性低,並取代部份 傳統縱向鋼筋,故鋼線網剪力筋梁位
移延展性指數較傳統 腹筋梁低。且延展性指數隨負彎矩鋼筋與正彎矩
鋼筋比 (AS?AS)增加而提高,隨拉力鋼筋比增加而降低。(2).含鋼
線網剪力筋梁較傳統腹筋梁的裂縫控制效果佳,且混凝土 強度愈高及
剪力筋間距愈小裂縫控制愈佳。(3).鋼線網剪 力筋梁,拉力鋼筋比降
低、剪力筋間距減小、負彎矩鋼筋 與正彎矩鋼筋比增加,強度與勁度
的遞減較緩和。而鋼線 網剪力筋梁較傳統腹筋梁在強度與勁度的遞減
上較快。(4). 剪力筋間距減小、負彎矩鋼筋與正彎矩鋼筋比增加,能量
消散能力較佳。(5).在不同載重歷程型態作用下,會影響 其構件行為
,在較小位移變形的載重歷程型態作用下,強 度與勁度的遞減較緩和
,能量消散能力較佳。

Abstract
The purpose of this study is to investigate the flexural
behavior of reinforced concrete beams with welded wire fabric as
shear reinforcement under cyclic loading. Atotal of fourteen
beam specimens were made. Twelve contained welded wire fabric
as shear reinforcement while the other two contained
conventional shear reinforcement. The parameters included
concrete strength, shear span to depth ratio, spacing of shear
reinforcement, ratio of positive steel to negative steel, amount
oftension reinforcement and loading history。
The results show that beams with welded wire fabric have
less ductility than beams with conventional shear reinforcement.
Beams with WWF have better crack control than those with
conventional shear reinforcement. Beams with WWF showed
faster deterioration than those with conventional shear
reinforcement in strength and stiffness. Increase of amount of
shear reinforcement and negative steel will increase the energy
dissipation capacity。
URI: http://hdl.handle.net/11455/13560
Appears in Collections:土木工程學系所

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