Bridge

1. forces

1.1. what forces will effect the crane?

1.1.1. compression?

1.1.2. tension?

1.1.3. shear?

1.1.4. torsion?

2. Form

2.1. what structure will my crane be?

2.1.1. solid?

2.1.2. frame?

2.1.3. shell?

2.1.4. combination?

3. stability

3.1. is my structure stable?

3.1.1. where is its center of gravity?

3.1.2. does it have any structural components?