Merits and demerits of kinds of interface element are analyzed deeply in this paper , and on the base of theory in possession it is derived that thin interaction element of yao weiming has good compatibility 文中對現(xiàn)有的接觸面單元的優(yōu)缺點(diǎn)進(jìn)行了深入的分析,在總結(jié)已有成果的基礎(chǔ)上,指出了姚緯明等人提出的薄層單元具有較好的適應(yīng)性。
It discusses the influence factors of pile groups effect , such as pile space , pile number , pile diameter , pile length and soil parameter etc . subsequently , using linear interpolation function to approximate the soil ' s anti force to piles , the article combines p - y curves with pole system fem . in this way , a new pile - soil interaction element calculated model is designed , the pile - soil interaction element stiffness matrix is deduced , and establishes finite element equation of p - y model , writes the relevant finite element program with matlab language , calculates and analyses pile groups subjected to lateral loads with engineering examples 隨后,本文將p - y曲線法與桿系有限元法相結(jié)合,采用線性插值函數(shù)來逼近土對樁的約束反力,得到新的樁?土相互作用的單元計算模型,推導(dǎo)了樁?土相互作用的單元剛度矩陣,建立了p - y模型的有限元求解方程,用matlab語言編制了相應(yīng)的p - y曲線有限元法計算程序,進(jìn)行橫向承載樁的計算分析。