Few buildings are as iconic as Willis Tower. Generations of Chicagoans have a collective memory of this building playing a role in their entire lives....

Unbonded post-tensioned (PT) concrete has become a widely-accepted construction technique in the United States. The introduction of PT in tall buildings has been relatively recent,...

In both professional circles and in the public eye, the subject of the World’s Tallest Building (WTB) has held the spotlight for more than a...

As international design teams participated in the development of high-rise structures around the world, many of the concepts of fire-safe design first introduced in the...

Often when new high-rise developments are announced in cities, focus is on the positive impacts such as job creation, increased local tax revenues and social...

Due to increasing urbanization, the next 50 years will see a shortage of resources, which will be a key challenge for the construction industry. Architects...