[{"data":1,"prerenderedAt":59},["ShallowReactive",2],{"q-107180-arch_construction-50":3},{"question":4,"neighbors":24,"sameNumber":43,"prev":32,"next":35},{"id":5,"classKey":6,"session":7,"year":8,"subject":9,"number":10,"groupStem":11,"ownStem":12,"stem":12,"options":13,"answer":15,"answerKind":17,"answerS":11,"answerNote":11,"images":18,"explanation":20,"withheld":11,"deepChars":21,"freq":22,"indexable":23},"arch-107180-801-0103-050","architect","107180",107,"建築構造與施工",50,null,"下列何種外牆窗台之作法較為妥善？",{"A":14,"B":14,"C":14,"D":14},"",[16],"D","single",[19],"\u002Fimages\u002Farch-107180-801-0103-050.png","本題考點：外牆窗台的防水排水構造，重點在室外側窗台頂面的洩水坡方向，以及窗框與窗台接縫和室外側窗台面的高低關係。\n【正解理由】窗台是外牆最容易積水、滲水的部位：雨水沿玻璃與窗框流下後落在窗台上，如果不能立刻排開，就會停在窗框底部與窗台之間的接縫，再經由毛細作用或颱風時的風壓被推進牆內與室內。妥善的窗台構造要同時滿足三個要件：①室外側窗台頂面要有向外下傾的洩水坡，讓水往外流；②窗框底部的接縫要高於室外側窗台面，水在碰到接縫之前就被導離；③窗框不能嵌在比室外側窗台面更低的凹槽裡，否則凹槽會變成積水池，接縫整天泡在水中。以窗台向外延伸、作出斜面的一側（各圖右側）為室外側來看，依題圖所示，(D) 的窗框坐在窗台頂面上，室外側緊貼窗框處先往下降一階，再以斜面一路向外下傾到外緣；窗框接縫位於室外側窗台面之上，雨水落下後順坡外流，不會倒流回接縫，三個要件都符合。故選 D。\n【逐項排除】\n(A) 錯誤。依題圖所示，(A) 的窗台頂面在室內外兩側都是水平面，室外側沒有任何洩水坡，雨水會停留在窗台面上，並沿著水平面流到窗框底部的接縫處；缺少把水導離的坡度，是這個作法的主要缺陷。要符合要件，室外側窗台面應做成向外下傾的斜面，且高程低於窗框接縫。\n(B) 錯誤。依題圖所示，(B) 室外側雖然做了向外的斜面，但斜面的起點高於窗框底部，窗框嵌在一個比室外側窗台面還低的凹槽內。雨水會先流進窗框與斜面起點之間的凹槽，積在接縫位置，斜面反而只排得到凹槽以外的水。不符之處有兩點：接縫低於室外側窗台面、窗框周圍形成積水凹槽。改成斜面從窗框接縫下方開始向外下傾，才能把水導離接縫。\n(C) 錯誤。依題圖所示，(C) 室外側窗台頂面大致水平，只在外緣轉角做了斜切；斜切只處理邊角，窗台面本身沒有向外的洩水坡，雨水仍會停在台面上。同時窗框也嵌在比兩側窗台面略低的凹槽中，接縫位置低於台面。不符之處有兩點：缺少整面的洩水坡、接縫低於室外側窗台面。\n(D) 正確。窗框接縫高於室外側窗台面，室外側從窗框邊緣先降一階再向外下傾，水流方向一路遠離接縫，是四個作法中唯一同時具備洩水坡與正確高程關係的構造。\n【記憶點】窗台防水看兩件事：室外側要有向外的洩水坡，窗框接縫要高於室外側窗台面，窗框不能泡在凹槽裡。",662,1,true,[25,28,31,34,37,40],{"number":26,"session":7,"stem":27},47,"臺灣目前基樁工程，依材料分類不包括下列何者？",{"number":29,"session":7,"stem":30},48,"RC 外牆的窗邊經常滲水，較有可能的原因是：①窗太大 ②RC 外牆厚度不足 ③窗框料…",{"number":32,"session":7,"stem":33},49,"在鋼構建築中，如何確認扭剪型高拉力螺栓已經完全鎖緊？",{"number":35,"session":7,"stem":36},51,"下圖為鋼骨工程之銲接部位詳細圖，下列敘述何者錯誤？",{"number":38,"session":7,"stem":39},52,"鋼構造樓板剖面詳圖中，A 構件名稱為何？",{"number":41,"session":7,"stem":42},53,"依據建築物無障礙設施設計規範，無障礙樓梯兩端扶手應水平延伸最小多少 A 公分以上，並…",[44,47,50,53,56],{"number":10,"session":45,"stem":46},"114180","如下圖所示，網釘工法是一種針對老舊建物外牆瓷磚改修的技術，其特性在於可最大限度地減少…",{"number":10,"session":48,"stem":49},"113190","下圖為一種浴廁「同層排水（Same Floor Draining System）」作…",{"number":10,"session":51,"stem":52},"112190","有關版基礎開挖後之回填，下列敘述何者正確？",{"number":10,"session":54,"stem":55},"111180","RC 柱的模板常在最下端留小活門，其功能為下列何者？",{"number":10,"session":57,"stem":58},"110180","鋼構件有防火需求時，常用的防火工法或材料不包含下列那種？",1791863210761]