Structural Design I
The courses Structural Design I and II explain the fundamentals of how structures function. These courses put great emphasis on studying the relationship between the form of a structure and the internal forces within it by means of graphic statics.
Cables
In the last exercise, simple cable structures were studied. The following exercise helps you to deepen your knowledge about form finding and more complex cable structures. You have to find thrust lines (cable forms) for cable structures with different loads.
Constant line load
A constant line load [kN/m] can be interpreted as an infinite number of equally distributed single loads with equal magnitude. A parabola is the reaction to a constant change of direction of the force.
3.1 From point load to uniformly distributed load
3.2 Construction of a parabola
Calculating loads
When multiplying the width of the tributary area with the area load, this is reduced to a line load, i.e. the load per linear metre. If the length of the tributary is then multiplied by the line load, the resultant can be determined.
Pavilhão de Portugal
The pavilion is an exhibition building in Lisbon and was planned by Álvaro Siza for the Expo 1998. It consists of two exhibition halls which are placed adjacent to one another. The wide plaza in between the buildings is covered with a suspension roof built of reinforced concrete. This construction spans 65m, has a width of 50m, and is only about 20cm thick. Steel cables are inserted into the concrete shell with a distance of 0.3m. Shear walls are placed at a distance of approx. 5m form the supports for the roof construction.
In this task, the different types of loads and their safety factors are analyzed and calculated. The roof shape of a hanging roof is designed for a distributed load.
- LÖSUNG – Übung 03
- SOLUTION – Exercise 03
- AUFGABE – Übung 03
- TASK – Übung 03
