THE METHOD OF PRESTRESS LEVEL EVALUATING FOR CABLE DOME

摘要

The construction of cables is the key technique of the cable dome. During the actual construction process,rnhowever, it difficult to ensure that there is no difference between the real prestressed force and the design value,rnthat is, the prestress level of cables is not uniform. Thus it is necessary for construction team to regulate the realrnprestress of cables repeatedly, but the result is not satisfactory. For construction team, so it is necessary to checkrnand test whether the actual prestress level satisfy the design requirements or not, and a clear judgment is need tornmade. To solve the problem, in the present work, a mathematical statistic method is adopted to evaluate the levelrnof prestress distributed non-uniformly for cable dome and the evaluation criterion is presented. The numericalrnresults show that the evaluating method is correct and feasible and it is therefore helpful to guide thernconstruction of cable dome.