EL CRÈDIT DE SÍNTESI

• Analyze a typical structure from the “Delta de l’Ebre”: forces, loads, shape, materials. Can you see any bridge?

 

MATERIALS: cane, wood, vegetals, clay, thatch

SHAPES: Simply rectangle anf the roof is a large triangle

LOADS: Live load, Dead load, Thermal load

FORCES: Bending and streching

 

 

 

 

 

 

 

 

 

 

 

BRIDGES: beam bridge, arch bridge, suspension bridge

 

 

 

 

 

 

 

• Parts of a bicycle. Analyze your bicycle: how many plates and pinions have your bicycle?                                                            Which is the gear ratio of your bicycle? Do you think that the bicycle is a multiplying or                                                                       a reduction system? Why?

 

- Plates 1 with 42theeth   Pinions 1 with 20

- Gear ratio=42/20=2.1

- Multypling because when you turn the pedal,

    the wheel does more than 1 turn, exactly, 2.1 turns more.

 

• Draw a Compass Rose, using the Autosketch program. You have the needed instructions hanged on the “Campus Virtual”