Steel Arch Construction Of Box Arch Bridge Arch Ring Stress Analysis And Stability Study

Reinforced concrete box arch bridge is a bridge in the form of common type,because it is a good use of materials and strong torsion,stability has been a lot of construction;bridges such as the number of its arch boxes,shape and size,etc.changes will produce various types of arch form,its mechanical properties will change.Construction also must take into account these factors will also affect the use of the main construction method,and now use more mature construction method comprising: Full Support Act,steel arch,cable hoisting method.Steel arch installation can be removed at any time and make better use topographical features,it has been widely adopted in the mountainous gorge.To further control mechanisms and mechanical characteristics of the construction,the main work is as follows:Firstly.It introduced several common arch and arch type,by comparison of its main characteristics and the actual project suitable environmental conditions,and recalled the common arrangement of several arched bracket and construction method.In the second chapter.According to the principles of construction monitoring,and study the arrangement of the steel arch tunnel construction process to obtain a box-shaped arch in the main parameters of the measurement and control of position,and the establishment of a monitoring system based on the engineering Zhoubai Bridge instance,its control accuracy of the data and control error handling,early warning systems,and research projects focused on the regulation.In the third chapter.Project examples using Midas Civil construction software for steel arch box arch simulation analysis,the establishment of the overall model of the steel arch,arch using a divided pouring construction phase of the study,the theoretical and measured values were compared,research deflection during construction changes and mechanical properties.In the fourth chapter.According to the theory with the experimental comparison results to find out the construction phase will generate security warning,the study should be done of its action,the key to the stability of the force of the construction phase will be checking.