Bridge with high pier and long span uses high-strength materials and thin-wall structure and often adopts segmental construction method, the effect of concrete elastic modulus and creep and shrinkage are significant, so aging stability analysis research has important significance 又由于此類橋梁大都采用節(jié)段施工方法,施工周期短,混凝土的彈性模量變化、徐變收縮等時(shí)效因素的影響顯著,開(kāi)展大跨徑混凝土橋梁施工全過(guò)程穩(wěn)定性研究具有重要意義。