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Braced walls are a basic sign that a wall can be in distress. What are some signs that a wall may be braced?

Concrete is inherently:

Ordinary construction may also be known as:

A masonry pier at a distance from the wall and connected to it best defines what term?

An eccentric load may be counterbalanced by tying the wall to the:

Explain in your own words the difference between piles and caissons. 

The essay “Reaching for the Heavens” suggests that SOM had one advantage in its team structure when compared to other offices.  What was this advantage? 

Describe in your own words the relationship between structural stability and serviceability, and this relationship may be more challenging as towers become increasingly slender.

Em is shorthand for the overall earthquake forces affecting buildings, and is composed of both base shear (Eh) and the vertical components of earthquake motion (Ev).  Ev is further calculated through the following formula: 0.5CaID with Ca noting the seismic coefficient, I noting the seismic importance factor/coefficient, and D the effective dead load.   How is the seismic importance factor I defined?

Consider the following scenario: A client has approached you to develop a 90-story building in downtown Chicago. The program suggests that larger-scale atria spaces should be included as part of the overall program. Which primary structural strategy may be best suited to meet these needs?