考慮承臺剛域的基礎(chǔ)梁受力分析
鄒翾1，姜文輝2，巢斯2
- 摘 要
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（1 上海建橋?qū)W院，201319；2 同濟大學(xué)建筑設(shè)計研究院 上海 200092）［提要］在考慮地下室基礎(chǔ)承臺剛域及抗拔樁布置的情況下，對基礎(chǔ)梁的彎矩計算進行分析推導(dǎo)，得出了跨中彎矩的折減系數(shù)計算公式。通過實際工程的算例分析，采用簡化計算得出四樁至六樁承臺不同跨度、不同樁徑的折減系數(shù)，從中可以看出，考慮承臺和樁的作用能夠降低基礎(chǔ)梁高度及減少配筋，做到設(shè)計上的經(jīng)濟合理，從而節(jié)約了工程造價。［關(guān)鍵詞］基礎(chǔ)梁；承臺；剛域；承載力Analysis on Foundation Beams Considering Rigid Zone of Pile Caps/Zou Xuan1, Jiang Wenhui2, Chao Si2(1 Jianqiao College, Shanghai 201319, China; 2 Arch. Design & Research Institute of Tongji University, Shanghai 200092, China)Abstract:Moments on basement foundation beams considering rigid zone of pile caps and pulling resistance of piles are analyzed. Reduction factor of midspan moment is gained. A practical project is cited and a reduction factor table about various beam spans and pile diameters of 4 pile to 6 pile caps is listed to show that considering the action of pile caps can reduce beam depth and reinforcement, thereby saving construction cost.Keywords:foundation beam； pile cap； rigid zone； bearing capacity
