PROPOSAL OF 3D ANNOTATED MODEL ON BRIDGE DESIGN MODELS INCLUDING GEOMETRIC TOLERANCE

Abstract

 The setting of tolerances for geometric characteristics of 3D models can be more accurately described by using geometric tolerance focusing on the geometric characteristics, rather than dimensional tolerance focusing on dimensions.

 In this research, we consider to apply geometric tolerance annotations to 3D design models of the piers, we realized that we could apply geometric tolerance and meet the criteria of civil engineering construction management standard. The reviewed items are bridge framework, prefabricated pile work (steel pipe soil cement pile), reinforcement work (assembly).The new methods make possible to improve precision of civil engineering structures as accurate information is transmitted. It is eliminated ambiguity and misinterpretation compared with representation by conventional dimensions.