Seismic Performance of a Deep Soil Mixing Grid: A Magnitude 7.1 Load Test at the Port of Alaska
The Port of Alaska in Anchorage (Port) has embarked on a multiphase modernization program that includes the development of a new petroleum and cement terminal (PCT) berth. The berth consists of a pile-supported...
Replaced with a Replica
Nearly a decade ago, a 144-year-old covered bridge in Michigan was destroyed by arson. Its recently completed replacement was designed to look as identical as possible to the original structure while meeting...
Preparing for Wind and Water
Engineers have played an essential role in preparing cities and states for the 2021 hurricane season.Their efforts to protect the public and public infrastructure range from sea walls to sewer systems,...
Learning From Pile Driving Failures: Out of Sight Can't be Out of Mind
The design of driven pile foundations for static service and strength limit state loading conditions is meaningless if the piles cannot be driven to the required depth and nominal resistance without sustaining...
Tsunami Loads and Effects
Guide to the Tsunami Design Provisions of ASCE 7-16
The devastating tsunamis that struck Chile and Japan in 2010 and 2011 underscored the critical need for new structural design criteria to improve building resilience and safeguard human life. They also...
Micropiles Support the "Missing Link": Understanding Load Transfer in Challenging Subgrades
Authorized by Congress in 1944, the Foothills National Parkway partly traverses the foothills of the Great Smoky Mountains in Eastern Tennessee. Large sections of the parkway cross high ridges located...
A Combo Foundation Does the Job: Piled-Raft Foundation Design for a Supertall Skyscraper
Lotte World Tower is a 123-story, 555-m supertall skyscraper with a 6-level basement for retail and car parking located at Jamsil-dong in Seoul, South Korea. (Editor’s Note: For additional information,...
Cracking the Nuclear Code: Finding an Alternative to the Nuclear Density Gauge
Two of the most basic quality control tests made in the field during soil construction are the soil’s moisture content and density. The establishment of a uniform procedure to compare the performance of...
A Faculty Internship: Reconnecting with the Profession
After spending eight years as a full-time academic administrator at Lafayette College in Easton, PA – one of only a handful of institutions where discipline-specific engineering programs are embedded in...
Optimized Drilled Shaft Design through Post-Grouting: Shorten That Shaft for Better Performance
Tip post-grouting is a technique used to inject, under pressure, a neat cement grout beneath the base of a drilled shaft. This method enhances or improves axial load-displacement performance by increasing...
Review of Climate Science for Engineering Practice
Weather and climate are a factor in civil engineering design and practice. Weather is defined as the state of the atmosphere with respect to wind, temperature, cloudiness, moisture, pressure,...
Pervious Concrete
Pervious concrete consists of a hydraulic cementitious binding system combined with an open-graded aggregate to produce a rigid pavement with typically 15% to 25% interconnected void space....
General
Design of Latticed Steel Transmission Structures specifies requirements for the design, fabrication, and testing of members and connections for electrical transmission structures. These...
Loading, Geometry, and Analysis
This Standard applies to latticed steel transmission structures. These structures shall be either self-supporting or guyed. They consist of hot-rolled or cold-formed prismatic members...
Pipe Characteristics
Microtunneling pipe should meet the following general requirements: Circular shape with a flush outside surface (including at the joints); Strength sufficient to withstand both the installation...
Pipe Design
The pipes and joints, once installed, must be capable of safely withstanding, for the project design life, all in-use service loads, including those associated with the following factors:...
The New Bedford Marine Commerce Terminal
When construction of the first American offshore wind farm support terminal encountered greater challenges than expected, jet grouting enabled construction to continue....
Findings From a Joint Industry Study on Foundation Fixity of Jackup Units
During the design storm conditions the soil supporting jack-up unit footings may be close to, or at plastic failure. Accordingly, the use of elastic solutions to the problems of foundation...
Performance Limits for Deepwater Pipelines
This paper highlights the differences between onshore and offshore pipeline design. It then summarizes the results of combined external pressure, tension, and bending testing on full scale...
Extreme Wave-Force Calculation Procedure for 20th Edition of API RP-2A
The paper describes the revised guideline design wave force calculation procedure approved for the 20th edition of the API-RP2A WSD and the first edition of the API-RP2A LRFD and contrasts...
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