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Cardno Bridges

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by

Daniel Brand

on 16 May 2013

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Transcript of Cardno Bridges

Daniel Brand Bridges: The Design Process Part 1: Basics Step 2: Modelling Step 3: Design Congratulations!
Now let's start & inspire someone with your presentation! Step 1: Loading Lateral Loading Part 1: Basics
1.1 Terminology
1.2 Design Standards

Part 2: Bridge Design Problem
2.1 Loading
2.2 Modeling
2.3 Design of Piles Vertical Loading Self Weight Traffic Loading Outline Terminology Design Standards: AS 5100 Braking Force Shrinkage & Thermal Effects Earth Pressures Pile Results
(For the Engineers) Maximum Axial Force = 1300 kN
Maximum Moment = 1220 kNm Pile Results
(For the Non-Engineers) 140 Minis Squashing 20 Tug Boats Pulling (Rotating) Part 2: Bridge Design Problem Conclusion Railing Superstructure Headstock Pier/Pile Abutment The Design Problem: Silver Creek Assume: M-Lock Bridge Elevation of Bridge Model in Microstran Analysis Capacity Imposed Load
(Axial/Squashing) Design Principle:

Factored Capacity > Imposed Load Axial Force = 1300 kN

or

Squashing = 110 Minis End Bearing Imposed Load Friction Geotechnical Report Capacity from End Bearing Length = 16 m
Diameter = 750 mm

Capacity = Bearing x Cross Sectional Area
= (2000) x (π x (0.325^2))
= 884 kN Capacity from Friction Length = 16 m
Diameter = 750 mm

Capacity = Friction x Curved Area
= (60 x π x 0.750 x 5.2)
+ (70 x π x 0.750 x 8.8)
= 2187 kN End Bearing = 884 kN Friction = 2187 kN Capacity > Imposed ? Total Capacity = End Bearing + Friction
= 884 + 2187
= 3070

Factored Capacity = 0.45 x 3070
= 1382 kN

Imposed Load = 1300 kN

Factored Capacity > Imposed Load
1382 > 1300 15m What resists load? 220 Weightlifters 550 Weightlifters Topsoil Alluvial 0 2 7.2 16 Residual 5.2 8.8 2 Friction = 0
Bearing = 0 Friction = 60 kPa
Bearing = 1400 kPa Friction = 70 kPa
Bearing = 2000 kPa 110 Minis 345 Weightlifters Only Required to Design Pile Foundations Approach
Slab School My Journey So Far..... 1 3 2 Basic understanding of the principles of maths and science Uni Application of maths and science to engineering specific problems Work Experience 'Fully Integrated' Concrete Structures 'Compartmentalised' Geotechnical Engineering Loading Modelling Design Application of uni subjects to a real life problem Thank You :) Questions?
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