- 摘 要
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蔣 海 云
（長沙市規(guī)劃設(shè)計(jì)院 410007）[提要] 大直徑擴(kuò)底墩受力明確，承載力大，施工簡便，造價(jià)低廉，在高層建筑結(jié)構(gòu)地基基礎(chǔ)設(shè)計(jì)中得到廣泛應(yīng)用。由于國家沒有統(tǒng)一的規(guī)程，各地設(shè)計(jì)不一，本文根據(jù)有關(guān)規(guī)范及資料從墩的工作狀態(tài)、受力性能、縱向鋼筋配置、墩帽及拉梁設(shè)置、墩身軸壓比及墩的檢測等方面進(jìn)行綜述，以便設(shè)計(jì)人員參考。
[關(guān)鍵詞] 大直徑擴(kuò)底墩 端承樁 摩擦樁 墩身軸壓比 動(dòng)測With definite load conditions、high bearing capacity、simple construction and low expenses, large diameter belled piers are wildely used in structural design of tall buildings. This paper discusses the working state of belled piers、force behavior、arrangement of longitudinal reinforcement、pier cap
and tie beam、axial compression ratio of pier shaft and test of pier, etc.
Keywords: large diameter belled pier; end-bearing pile; friction.bearing pile; axial compression-ratio; pier shaft; dynamic test
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