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        柏傲冬       （深圳市南山區(qū)工程質(zhì)量監(jiān)督站 518066）

        柏幸生       （深圳市南山區(qū)廣告公司）

 

[提要]  承臺(tái)類似于深梁，應(yīng)按深梁設(shè)計(jì)?？箾_切是抗剪切的一個(gè)特例，兩者的計(jì)算可以統(tǒng)一。在設(shè)計(jì)承臺(tái)時(shí)，應(yīng)考慮外力在承臺(tái)內(nèi)擴(kuò)散的有利作用。本文提出了相應(yīng)的計(jì)算公式，它們與規(guī)范及現(xiàn)行的計(jì)算方法一致，但均較節(jié)約，特別是在跨厚比較小時(shí)更為顯著。
[關(guān)鍵詞]  承臺(tái)  擴(kuò)散作用 抗沖切 抗剪切 抗彎 深梁 剪跨比

Pile cap is similar to deep beam. It can be designed by the deep beam theory. When designing the pile cap, we must consider the useful effect of the external force diffusing in the pile cap. Therefore, we bring up the formulae which are accord with the code and the present calculating methods. The formulae are more economical and stabler espcially when the span-to-deepth ratio is smaller.
Keywords: pile cap; diffusion effect; punching shear; bend; deep beam; shear-to-span ratio