New and stronger concretes have become the standard material for very tall buildings, displacing steel in structural design.  These concretes bring higher, selectable strengths and workability properties that make them particularly efficient and

Concrete for Tall Buildings - Designing Concrete Megastructures - Part II

The Infrastructure Show consists of monthly podcasts in which some of the nation’s top infrastructure experts discuss with host Professor Joseph Schofer of Northwestern University the condition of our infrastructure today, and what can be done about it. While many subjects are addressed, including repairs, upgrades and new construction, there is an emphasis on the topics of preventive and predictive maintenance, as well as “structural health monitoring” – a special focus of the Northwestern Infrastructure Technology Institute, of which Dr. Schofer is Director.

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GPS, the Global Positioning System, is now half a century old. This extraordinary technological advance routinely guides planes, ships, trains, automobiles, bikers and pedestrians with high precision. A Defense Department

The Global Positioning Satellite System – Fifty Years of Success

Almost every major system we rely on seems to be vulnerable to cyberattacks from scammers, criminals, and nation states threatening our national security. Reports of cyberattacks disrupting and even destroying critical infrastructure systems are

Locking the Door on Cyberattacks

Energy from wind and solar sources is available when nature permits, but the demand for energy is based on the cyclical needs of people and their activities. To make renewable energy work, and to manage the normal daily mismatches between supply and

Delivering Energy on Demand: Grid-Scale Storage

In very cold places, like Alaska, Northern parts of Canada and Europe, building infrastructure means building on permafrost, perennially frozen ground. Permafrost provides reliable foundations for buildings and highways as long as it remains frozen.

When Permafrost isn’t Permanent – Building Infrastructure in Cold Regions

Spectacular bridges can be focal points of their host cities, reminding us that unique infrastructure can also be unique art. Lighting those bridges can carry their aesthetic value into the night. In 2013, the San Francisco-Oakland Bay Bridge was

Concrete for Tall Buildings - Designing Concrete Megastructures - Part II

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