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[提要]  結(jié)合一實(shí)例，應(yīng)用有限元法分別對(duì)板上和板下肋梁式筏基進(jìn)行計(jì)算分析。計(jì)算結(jié)果表明二者的力學(xué)性能是不同的。對(duì)基礎(chǔ)計(jì)算程序TBSA-F計(jì)算手冊(cè)的觀點(diǎn)提出了不同看法，并對(duì)肋梁式筏基計(jì)算與設(shè)計(jì)提出了一些建議，供設(shè)計(jì)參考。
[關(guān)鍵詞]  肋梁式筏基  有限元法  力學(xué)分析  剛度

Through an example, two types of beam-plate raft foundation-beam-up-plate-down and beam-down-plate-up are computed and discussed with finite element method. The results show that the relationship between beam and plate has effect on mechanics performance of the raft foundation. Some viewpoints different from TBSA-F User's Manual and suggestions for beam-plate raft foundation design are presented.
Keywords: beam-plate raft foundation; mechanics analysis; stiffness