[{"data":1,"prerenderedAt":61},["ShallowReactive",2],{"q-114180-arch_structure-6":3},{"question":4,"neighbors":26,"sameNumber":45,"prev":34,"next":37},{"id":5,"classKey":6,"session":7,"year":8,"subject":9,"number":10,"groupStem":11,"ownStem":12,"stem":12,"options":13,"answer":18,"answerKind":20,"answerS":11,"answerNote":11,"images":21,"explanation":22,"withheld":11,"deepChars":23,"freq":24,"indexable":25},"arch-114180-801-0102-006","architect","114180",114,"建築結構",6,null,"關於薄膜結構，下列敘述何者正確？",{"A":14,"B":15,"C":16,"D":17},"薄膜僅能受壓應力","薄膜元素會有彎曲應力","薄膜構造通常伴隨拉索是為維持其薄膜張力","薄膜不會有應力集中現象",[19],"C","single",[],"本題考點：薄膜結構的受力特性——薄膜只能承受面內張力，沒有抗壓與抗彎能力，必須以預張力與拉索維持形狀與勁度。\n【正解理由】薄膜材料厚度極薄，抗彎勁度趨近於零，受壓時會立即皺曲，所以只能靠面內張力傳遞載重。要讓薄膜在風、雪等載重下不鬆弛、不飄動，必須預先施加張力，並以邊索、脊索、谷索等拉索把張力錨定到支柱或邊界構架上；拉索的作用就是導入並維持薄膜張力，使膜面形成穩定的曲面。故選 C。\n【逐項排除】\n(A) 錯誤。薄膜受壓會皺曲失效，不能承受壓應力；正確說法是「薄膜僅能受張（拉）應力」。\n(B) 錯誤。薄膜厚度極薄，抗彎勁度可忽略，內力只有面內的張力與剪力，不會發展彎曲應力；正確說法是「薄膜元素只有面內應力，不承受彎曲應力」。\n(C) 正確。拉索與膜面共同組成張力系統，透過拉索導入預張力並維持膜面張力，使薄膜在載重反覆作用下仍保持形狀與勁度。\n(D) 錯誤。薄膜在夾具、錨定點、邊索連接、膜面轉角與開孔周邊等不連續處，張力會集中，局部應力明顯高於一般膜面，膜材撕裂多由這些位置開始；正確說法是「薄膜在連接與不連續處會有應力集中現象」，這些部位通常以補強片或加厚處理。\n【記憶點】薄膜三不：不抗壓、不抗彎、不能沒張力——拉索就是為了維持膜面張力。",463,1,true,[27,30,33,36,39,42],{"number":28,"session":7,"stem":29},3,"如圖所示，x 軸為作用力的反覆加載週期數目（N），y 軸為鋼所承受的應力（MPa）大…",{"number":31,"session":7,"stem":32},4,"一長度為 2 m 圓棒，直徑為 30 mm，彈性模數為 70 GPa，波松比（Poi…",{"number":34,"session":7,"stem":35},5,"關於圓球薄殼結構，下列敘述何者錯誤？",{"number":37,"session":7,"stem":38},7,"下列何種結構系統較不適用於超過 50 公尺之高層建築？",{"number":40,"session":7,"stem":41},8,"有關高層建築結構系統與設計，下列敘述何者錯誤？①高層建築於設計風力下之層間位移角，不…",{"number":43,"session":7,"stem":44},9,"某等跨距構架活載重 w 全部負載、間隔負載如圖(a)、圖(b)所示，若活載重大於靜載…",[46,49,52,55,58],{"number":10,"session":47,"stem":48},"113190","下列關於提高纜索結構（cable structures）穩定性的策略，何者無效？",{"number":10,"session":50,"stem":51},"112190","為抵抗拱結構支承處之外推力，下列設計策略何者不適當？",{"number":10,"session":53,"stem":54},"111180","關於薄膜、纜索、與拱結構系統之敘述，下列何者錯誤？",{"number":10,"session":56,"stem":57},"110180","一般在具剪力牆與特殊抗彎矩構架的鋼筋混凝土二元系統中，剪力牆與特殊抗彎矩構架兩者，通…",{"number":10,"session":59,"stem":60},"109180","東海大學路思義教堂之結構系統較接近下列何種結構系統的組合？",1791863195368]