Bridge Engineering VBK041, 2015

Aim
The course gives applicable knowledge of the design of bridges, with special emphasis on steel-concrete composite bridges.

Knowledge and understanding
For a passing grade the student must

  • be able to analyse bridge structures with regard to traffic and other relevant actions and understand analysis methods specific for bridge design.
  • understand the behaviour and design methods used for bridges.
  • have knowledge of different bridge types and their respective construction method.

Skills and abilities
For a passing grade the student must

  • be able to apply knowledge from previous courses in design project for bridges.
  • be able to independently choose type of bridge, structural layout and construction method early in the design stage.
  • be able to present the results from the design both in writing and as drawings.
  • be able to independentlyand critically evaluate the information about technical solutions for bridges.

Judgement and approach
For a passing grade the student must

  • be able to independently evaluate different types of bridges and structural solutions reviewed in the literature and given in lectures.
  • be able to independently adjust and modify standard solutions to a specific project.

Contents
The course includes lectures, design projects, visiting lectures by professional bridge designers and a study trip.The course is based on two major projects. The first project is a conventional two span steel-concrete composite roadway bridge. The design is made on a relatively detailed level. The second project is a long span pedestrian bridge where the structural system, construction methods, economy and aesthetics are chosen in the form of preliminary design level.

Course Literature

1) Sundquist, H. Infrastrukturkonstruktioner. Compendium from KTH

2) Design of steel-concrete composite bridge. Compendium from LTH

3)Klassiska brohaverier – bakgrund, förklaring och analys, Björn Åkesson

4) Extracts from relevant building codes (EC1, EC2, EC3, EC4) will be available for the students at the course start

5) Hand-outs from the teachers (downloadable material from the course homepage)

Course Coordinator

Roberto Crocetti (RC)

Konstruktionsteknik, phone: 046222 8626, e-mail:

Guest lecturers:

-Thomas Kamrad and Ola Bengtsson (C&H)

Centerlöf & Holmberg, phone: 040 - 25 89 14, e-mail:

-Hans Pétursson (HP)

-IvarBjörnsson (IB, Konstruktionsteknik

-Håkan Camper (HP), SKANSKA AB, Malmö

Examination

There will be a final test (approx. 2 h) at the end of the course with some basic theory questions. The final score will be only “passed” or “not passed”. In order to pass the exam it is necessary that the student has:

-Passed the final test

-Performed the design exercise in a satisfactory manner and received the grade “approved” by the teachers (RC and C&H)

-Completed the second bridge project in a satisfactory manner and received the grade “approved” by the teachers (RC and C&H)

The international students or the Swedish students who wish to achieve a final score (i.e. 3 or 4 or 5 or “not passed”) should talk to the teacherat the beginning of the course.

Course schedule

Week 36
Day / Time / Topic / F/Ö/K / Room
Mon 31/8 / 13-15 / Introduction, Historic background / F (RC) / V:P2
Mon 31/8 / 15-17 / Conceptual design / F (RC) / V:P2
Tue1/9 / 15-17 / Introduction to design exercise / K (C&H) / V:P2
Week 37
Day / Time / Topic / F/Ö / Room
Mon 7/9 / 13-15 / General issues and preliminary design / F (RC) / V:P2
Week 38
Day / Time / Topic / F/Ö/K / Room
Mon 14/9 / 13-15 / Influence lines / F (RC) / V:O2
Mon 14/9 / 15-17 / Bridge Loading / F (IB) / V:O2
Tue 15/9 / 10-12 / Exercise: Stress calculations from self-weight & traffic / Ö (RC) / V:O2
Tue 15/9 / 13-15 / Steel-Concrete composite structure / F (RC) / V: P2
Tue 15/9 / 15-17 / Design exercise / K (C&H) / V:P2
Week39
Day / Time / Topic / F/Ö/K / Room
Mon 21/9 / 13-15 / Exercise: Calculation of composite section properties / Ö (RC) / V:P2
Mon 21/9 / 15-17 / Exercise: Shear flow calculations
Exercise: Lateral torsional buckling of twin-girder bridge - model & example / Ö (RC) / V:P2
Tue 22/9 / 15-17 / Design exercise / K (C&H) / V:P2
Week40
Day / Time / Topic / F/Ö/K / Room
Mon 28/9 / 13-15 / Exercise: Restrained actions in composite bridges - temperature & shrinkage / Ö (RC) / V:P2
Mon 28/9 / 15-17 / Design exercise / K (C&H) / V:P2
Tue 29/9 / 15-17 / Design exercise / K (C&H) / V:P2
Wed30/9 / 17 / Hand in Part 1 of design exercise 1
Week 41
Day / Time / Topic / F/Ö/K / Room
Mon 5/10 / 13-15 / Fatigue / F (RC) / V:P2
Mon 5/10 / 15-17 / Exercise: Fatigue loading for road bridges / Ö (RC) / V:P2
Tue6/10 / 15-17 / Design exercise / K (C&H) / V:P2
Week 42
Day / Time / Topic / F/Ö/K / Room
Mon 12/10 / 08-10 / Torsion and load distribution in transversal direction / F (RC) / V:N1
Mon 12/10 / 15-17 / Exercise: Torsion and load distribution in transversal direction / Ö (RC) / V:N1
Week 43
Wed 21/10 / 17 / Hand in Part 2 of design exercise 1
Week 44
Week 45
Day / Time / Topic / F/Ö/K / Room
Mon 2/11 / 13-15 / Introduction to project 2 – long span pedestrian bridge / K (C&H) / V:Q2
Mon 2/11 / 15-17 / Design exercise / K (C&H) / V:Q2
Wed 4/11 / 8-10 / Design excercise / K (C&H) / V:Q1
Week 46
Day / Time / Topic / F/Ö/K / Room
Wed 11/11 / 17 / Hand in Part 3 of design exercise 1
Week 47
Day / Time / Topic / F/Ö/K / Room
Mon 16/11 / 13-15 / Suspension bridges / F (RC) / V:Q2
Mon 16/11 / 15-17 / Arch bridges / F (RC / V:Q2
Wed 18/11 / 8-10 / Cable-stayed bridges / F (RC / V:O1
Week 48
Day / Time / Topic / F/Ö/K / Room
Mon 23/11 / 13-15 / Bridge substructures (1) / F (HK) / V:Q2
Mon 23/11 / 15-17 / The construction of Öresund bridge / Ö (C&H) / V:Q2
Wed 25/11 / 8-10 / Bridge substructures (2) / F (C&H) / V:O2
Fri 27/11 / 17 / Hand in revisions parts 1-3 of design exercise 1
Week 49
Day / Time / Topic / F/Ö/K / Room
Mon 30/11 / 13-15 / Post-tensioned concrete bridges (1) / F (C&H) / V:Q2
Mon 30/11 / 15-17 / Post tensioned concrete bridges (2) / Ö (C&H) / V:Q2
Wed2/12 / 8-10 / Long-span pedestrian bridge / K (C&H) / V:Q1
Week50
Day / Time / Topic / F/Ö/K / Room
Mon 7/12 / 13-15 / Bridge collapses: case studies / F (RC) / KC:R
Mon 7/12 / 15-17 / Long-span pedestrian bridge / K (C&H) / KC:R
Wed9/12 / 17 / Hand in Project 2
Week 51
Day / Time / Topic / F/Ö/K / Room
Mon 14/12 / 13-15 / Presentations of Project 2 by students / K (C&H) / V:Q2
Mon 14/12 / 15-19 / Presentations of Project 2 by students / V:O2
Wed 16/12 / 8-10 / Mini-examination / V:O1-2

F: Föreläsning (English: lecture)

Ö: Övning (English: excercise)

K: Konstruktionsövning (English: design excercise)