Taking BIM Applications in Lanzhou West Railway project for example, this article discussed some BIM Application such as construction process, engineering difficulties, solutions and specialized applications in the train station building, which could be reference for similar projects.By solving difficulties of this project, which included civil engineering calculation, secondary deepening steel roof truss design and construction hoisting simulation, level of specialized applications would be improved. BIM would played significant role in "Three Controls, Management and Coordination" and Green Construction.

With a case study of the application of the steel bar in the second highway project of Runcheng, this paper explores the reinforced lofting, processing and optimization during green construction. With the social and economical development as well as advancement of science and technology, cities in China are continuously expanding. There come the problems of a large population, too many high-rise buildings and an increasing demand for building materials, especially rebar. The government initiates the green construction concept, which calls for energy saving, land saving, material saving and water saving. Material saving is the priority, and rebar is the main building material, which becomes the main factor for construction cost. Therefore, both parties attach great importance to the accurate calculation of rebar, and professional rebar processing and delivery is essential for material saving during green construction.