Making Buildings Move
Advances in mechanization and power electronics have helped to make retractable roofs and large operable walls and doors more practical and efficient to build. In recent years, architects and engineers...

Powerful Upgrade
As the northeastern United States moves forward in developing offshore wind energy, marine infrastructure will be required to meet the logistical needs associated with receiving, storing, and preparing...

Restoring The Capitol Dome
While most construction projects serve only as local points of interest, some are conducted on a national stage. The restoration of the U.S. Capitol’s dome was one such project. The extent of the scaffolding...

Calibration of Jackup Leg Foundation Model Using Full-Scale Structural Measurements
The fitness of jack-up rigs to operate in varying water depths and weather conditions is determined by "site-specific" structural assessments. These assessments are conducted by a wide range of companies...

Heave Compensated Landing System - A Novel Tool for Subsea Intervention
This paper presents a new intervention system that allows the use of a low cost workboat to deploy and recover delicate payloads in subsea installations. Vessel motions are decoupled from the subsea package...

When Things Became Muddy: TVA's Response to Seepage Discharge at Boone Dam
In October 2014, the Tennessee Valley Authority (TVA) profited from investments in a robust dam safety program. This profit did not come in the form of money, but more importantly in the protection of...

Dam Safety Management Using Risk-Informed Decision-Making Methods: A Powerful Tool or an Unnecessary Venture?
This article discusses design standards, safety methods, and risk-informed decision-making methods for dams....

The Case for Tolerable Risk Guidelines to Manage Flood Risk: Nature Bats Last
Since ancient times, people have used levees to reduce flood risk. We have built over 30,000 miles of levees in the U.S., largely on the belief that levies will unconditionally protect people who live...

Open Pit Geotechnics: Designing Slopes for a Very Deep Hole
For most hard rock surface mining operations, the development of an open pit is required to extract the ore resource. In designing an open pit, the challenge is to develop the most cost-effective pit slopes...

Where Geosynthetics Meet Mining Geotechnics: Part of the Mining Engineer's Toolbox
From enhancing stability to providing environmental containment, geosynthetic materials play an important role in mining projects and geotechnics in general. While often overlooked, advancements in geosynthetic...

Guidelines for Construction Vibrations: How Much Rattle is Too Much?
The study of construction/blast-related ground vibrations on structures, people, and objects is a surprisingly diverse field. Vibration sources vary from blasting, all types of construction equipment,...

Diving Into Engineering
When the underwater portions of a bridge or waterfront facility need to be inspected, the right person for the job is often an engineer diver, a specially trained professional who understands load paths...

Attractive Alternative
The Lewis and Clark Bridge, an elegant cable-stayed bridge with diamond-shaped towers, connects highways in Indiana and Kentucky that had long been truncated and provides a clear alternative for interstate...

Trestle Triumph
As part of improvements to a marine oil terminal in California, the design team had to ensure that a nearly century-old timber trestle met contemporary requirements related to operations, seismic activity,...

BIM Belowground
Despite the wider use of building information modeling (BIM), the practice frequently focuses on aboveground details to the exclusion of those below the surface. But the BIM techniques used in the design...

Designing for a Driverless World
As driverless vehicles enter the nation’s roads, engineers will be called on to keep the streets safe and efficient. To do so will require many changes to our transportation infrastructure, affecting everything...

Ropeless Technology Moves Elevators in New Directions
A reliable, safe, ropeless elevator that can travel both horizontally and vertically is poised to redefine how tall buildings can be engineered....

Fast Forward: Around the Bend
An architecture firm envisions an inverted U-shaped tower in New York City that would outstrip the height of current megatall structures and replace it with length....

Parallel Line
The Manahawkin Bay Bridge carries Route 72 from the mainland of Ocean County, New Jersey, to the seaside destination of Long Beach Island. Since the route is the only vehicular link to the island, the...

When Old Meets New: Railway Geotechnics and Remote Sensing
Railroad track, like any other built structure, relies on a foundation of geomaterials for support. In its most basal form, the railway track is quite simple: steel load-bearing members (rails) supported...

 

 

 

 

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