1. Concrete 2001 Perth September 2001 Barcoo Outlet Culvert The Influence of Soil-Structure Interaction on the Design of a Buried Arch Structure Doug Jenkins Interactive Design Services

2. Focus: l Interaction of soil with deep raft foundations l Analysis methods for foundation design l Longitudinal effects on segmental culverts

3. Culvert Design

23. Cross-Section Analysis

38. Raft Bending Moments

39. Raft Bending Moments Effect of Soil Stiffness

40. Raft Bending Moments Finite Element vs Beam on Elastic Foundations

41. Raft Bending Moments Bending Moment vs Fill Height

42. Raft Bending Moments Modulus of Subgrade Reaction vs Fill Height

43. Longitudinal Effects 3D Analysis

44. Conclusions l Advantages of finite element analysis: –Soil properties based on standard tests –Model complex foundations –Model complete structure –Model construction sequence l Beam on elastic foundations –Simple and quick –But calibration against finite element analysis essential