Translated Title
Construction Monitoring and Numerical Simulation of M ultiple Square Loops-string Dome
Translated Abstract
In order to study the mechanical characteristic of Multiple Square Loops-String Dome (MSLSD) ,Fuzhou Olympics Gymnasium is taken as the research background in this paper ,which is the first MSLSD project in China .Tension force ,sections stress and displacement of the MSLSD un-der each construction process are monitored . The measured data indicate that tensioning cables of Square Loops can reduce the deflection significantly and improve vertical stiffness of roof .However , the tensioning cables of beam strings increase the roof deflection slightly ,which acts as unloading effect .In the end ,the vertical stiffness of MSLSD roof increases significantly ,and vertical deflection is enhanced by 124 mm after all prestress constructions .For each prestress construction stage ,the construction monitored values of cables tension forces and sections stresses are within the safety range .M eanw hile ,the 3D finite-element model of M SLSD is established .In the model ,the prestress constructions are simulated by temperature shrinkage of special link elements .The numerical results match well with monitor data ,which validates the numerical model .
Translated Keyword
beam string
construction monitoring
dome
multiple square loops (MSL)
prestress construction
Access Number
WF:perioarticalwhjtkjdxxb201605008
