Concrete pylons are adopted for the fengdu yangtze suspension bridge , and normal construction methods for the pylons include slide formworks , turning shutters and climbing formworks . climbing formworks with assembled steel - pipe scaffolding is a newly - developed technique for this bridge . it causes saving of the steel skeleton for construction of the pylons . by utilizing regular simple rods and parts , construction progress is fast and the quality is good 豐都長江大橋懸索橋采用混凝土橋塔,其常規(guī)的施工方法有滑模、翻模和爬模等幾種,本橋施工中采用了新開發(fā)的鋼管爬升架倒模新工藝,不僅節(jié)省了為橋塔施工而設(shè)計的橋塔型鋼骨架,而且利用常規(guī)的簡易桿件、施工速度快,施工質(zhì)量好。