| Author | Wong, Bun |
| Call Number | AIT Thesis no. ST-88-28 |
| Subject(s) | Structural design
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Previous researches have shown that the existing design codes and
practice overdesign the double diagonal cross bracings by ignoring the
strength of these diagonals that are in compression.
A theoretical analysis !las been car1·ied out to study the behaviour of
angle double diagonal cross bracings with initial imperfections and load
eccentricities. An elastic-plastic model utilizing the Perry-Robertson formula
with a new geometry imperfection factor h as been used to study the realistic
behaviour of the systems.
The second mode buckling in the compression diagonal has been found to
be independent of its initial crookedness and load eccentricity. When the
tensile stress in the tension diagonal equals or exceeds 6096 of the
compressive stress in the compression diagonal, second mode buckling failure
will occur. The interconnection joint at the mid- span of diagonals deflects
out- of-the-plane of truss and the maximum deflection is of finite magnitude.
Finally, a design method which gives higher allowable load carrying capacities
of angle double diagonal cross bracings has been proposed. |
| Year | 1988 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Sritawat Kitipornchai |
| Examination Committee(s) | Karasudhi, Pisidhi ;Hasegawa Akio
|
| Scholarship Donor(s) | The Keidanren Foundation, Japan. |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1988 |