tailieunhanh - Basic Theory of Plates and Elastic Stability - Part 10

Tài liệu tham khảo giáo trình cơ học kết cấu trong ngành xây dựng bằng Tiếng Anh - Yamaguchi, E. “Basic Theory of Plates and Elastic Stability” Structural Engineering Handbook Ed. Chen Wai-Fah Boca Raton: CRC Press LLC, 1999 - Bridge Structures | Toma S. Duan L. and Chen . Bridge Structures Structural Engineering Handbook Ed. Chen Wai-Fah Boca Raton CRC Press LLC 1999 Bridge Structures General Steel Bridges Concrete Bridges Concrete Substructures Shouji Toma Department of Civil Engineering Hokkai-Gakuen University Sapporo Japan Lian Duan Division of Structures California Department of Transportation Sacramento CA Wai-Fah Chen School of Civil Engineering Purdue University West Lafayette IN Floor System Bearings Expansion Joints and Railings Girder Bridges Truss Bridges Rigid Frame Bridges Rahmen Bridges Bridges Cable-Stayed Bridges Bridges Terms Acknowledgment References Further Reading Appendix Design Examples General Introduction A bridge is a structure that crosses over a river bay or other obstruction permitting the smooth and safe passage of vehicles trains and pedestrians. An elevation view of a typical bridge is shown in Figure . A bridge structure is divided into an upper part the superstructure which consists of the slab the floor system and the main truss or girders and a lower part the substructure which are columns piers towers footings piles and abutments. The superstructure provides horizontal spans such as deck and girders and carries traffic loads directly. The substructure supports the horizontal spans elevating above the ground surface. In this chapter main structural features of common types of steel and concrete bridges are discussed. Two design examples a two-span continuous cast-in-place prestressed concrete box girder bridge and a three-span continuous composite plate girder bridge are given in the Appendix. 1999 by CRC Press LLC 1999 by CRC Press LLC bridge length FIGURE Elevation view of a typical .