文章來源：中(zhong)國建筑工程總公司 發布時間：2018-06-28
近日，中(zhong)國(guo)建(jian)筑工(gong)程總公(gong)司所屬中(zhong)建(jian)三(san)局“超(chao)高層大三(san)角網格純鋼外框筒結構關鍵(jian)施工(gong)技術研究與應用(yong)”經北京(jing)市住房和城鄉建(jian)設委員會鑒定，整體達到(dao)國(guo)際先進水平。
該成果在北(bei)京中弘(hong)大(da)廈項(xiang)(xiang)目運用。項(xiang)(xiang)目外框筒(tong)采(cai)用純鋼(gang)(gang)大(da)三角斜(xie)交(jiao)網(wang)格結(jie)構，結(jie)構形(xing)式復(fu)雜(za)、施(shi)(shi)工(gong)(gong)難(nan)度大(da)。項(xiang)(xiang)目應用BIM技術對(dui)復(fu)雜(za)節(jie)(jie)點優(you)化設(she)計(ji)，形(xing)成外雙K內(nei)十字異(yi)面組(zu)(zu)合鋼(gang)(gang)節(jie)(jie)點、七面斜(xie)交(jiao)X型組(zu)(zu)合鋼(gang)(gang)節(jie)(jie)點系列制(zhi)作及施(shi)(shi)工(gong)(gong)技術，降低了復(fu)雜(za)節(jie)(jie)點的加工(gong)(gong)制(zhi)作和施(shi)(shi)工(gong)(gong)焊接的難(nan)度。同時(shi)，項(xiang)(xiang)目優(you)化設(she)計(ji)和選型，在國內(nei)首(shou)次實現了3.5米跨度壓型鋼(gang)(gang)板(ban)組(zu)(zu)合樓板(ban)無(wu)支撐施(shi)(shi)工(gong)(gong)。通過應用該創(chuang)新成果，中弘(hong)大(da)廈項(xiang)(xiang)目有(you)效提升(sheng)施(shi)(shi)工(gong)(gong)效率5%，節(jie)(jie)省(sheng)工(gong)(gong)期100天。