Rapport - It.civil.aau.dk - Aalborg Universitet

Kapitel 9
Summary
This project concerns the design of an office building at Stuhrs Brygge located
at the waterfront in Aalborg, Denmark. The subject is the eastern wing
of the newly built domicile of KMD, which is a prefacbricated six storeys
building.
9.1 Construction
The loadbearing construction is chosen to be made of prefabricated concrete
panels and slabs as in the existing building. The stairwells function as
stabilizing cores.
Stability is examined for four different static systems exposed to wind load
and horisontal mass load. Sufficient stability has been proven for a system
where selected panels are interlocked by computing a plastic load distribution,
as the eccentricity of each panel was within the panel.
The most stressed wall in the ground floor was designed with unstressed
reinforcement. The wall was designed by means of the plasticity theory, as
it in addition to the compressive force, whose point of action is eccentric, is
loaded by a bending moment due to inaccuracy, wind and buckling.
The wall was designed to resist 120 minutes of fire with sufficient bearing
capacity. The thermal eccentricity was considered and so was the strength
reduction of the concrete and the reinforcement caused by the heating. The
temperature distribution through the wall was calculated by means of a
standard fire, and by calculation of the opening factor fire. It was evaluated,
that the assumption of using the standard fire is reasonable.
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