【摘要】 在预应力混凝土斜拉桥的施工中几何线形和结构内力的控制非常重要 ,据此介绍近年来我国在这一方面的新进展 ,应用现代工程控制理论中自适应控制的思想形成控制系统 ,其中主要在结构参数辨识和现浇主梁底模标高的实时修正等关键技术上有了突破 ,并经过几座大跨预应力混凝土斜拉桥的实践取得了成功的经验 .更多还原

【Abstract】 The control of geometry and internal forces in the cable stayed prestressed concrete bridge is very important.This paper introduces the new progress of this control in China for the past few years,using adaptive control idea of modern engineering control theory to form the control system,which makes a breakthrough in the structural parameter identification and in real time camber modification of the deck at site.Several long span prestressed concrete(PC) cable stayed bridges have been successfully applied with the method.更多还原