Jonathan Ochshorn - ARCH 366/666, Questions for Week 10

Jonathan Ochshorn
Room 121-B, Rand Hall
Department of Architecture
Cornell University

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Questions for Week 10
Briefly answer each question (1-3 sentences should do in most cases). Please type (or print neatly) and submit at the end of class, 3/24/03. Note that readings are available through the Cornell Library Course Reserve at http://catalog.library.cornell.edu/. Instructions for accessing readings online are located at http://instruct1.cit.cornell.edu/courses/arch463/arch366sp03/read/online.html.

Select reading 10a.

Due: March 24, 2003

10a. Waclaw Zalewski and Edward Allen, "Finding Forms and Forces for Funicular Structures," Shaping Structures: Statics

1. What is the horizontal conponent of the cable forces shown in figure 8.1, and is it constant throughout the cable?

2. Optional: Based on the equilibrium of joints "b," "c," and "d" shown in figure 8.2 (p. 177), are there any upper and lower limits on the weight that can be applied to the pulley at "A"?

3. What is the definition of a "funicular polygon?"

4. What are two methods of cutting a cable, while preserving the shape and structural behavior of the cable piece that remains? Draw diagrams if necessary.

5. How many different funicular shapes are possible for a given set of loads where the horizontal distance between loads is held constant?