Wharves and Piers

Crane Loads – Triple E Class and Beyond

by Erik Soderberg, Leah Olson, and Jonathan Hsieh.
Presented by Erik Soderberg at ASCE COPRI Ports 2016 Conference in New Orleans.

Ship sizes have recently grown faster than expected. In addition to ship sizes growing faster than expected, the increased demand for crane productivity is resulting in crane variations that have a significant effect on wheel loads. A variety of crane variations are presented to explain their impact on crane wheel loads.

Your Wharf May Be Stronger Than You Think

by Erik Soderberg, Yoshi Oritatsu, and Michael Jordan.
Published in Port Technology International, Sixtieth Edition, November 2013.
This article discusses using modern engineering methods to justify additional crane girder capacity. As many terminals face the challenge of accommodating larger vessels and cranes, many wharf owners find that they have insufficient crane girder rated capacity and only consider strengthening options. Larger wharf capacities can be justified using modern engineering methods. The engineering cost has been a fraction of the cost of strengthening. An additional benefit is no impact to terminal operations. If you need larger crane girder capacities, before proceeding with expensive strengthening work try justifying additional capacity using modern engineering methods.

Port of Redwood City Wharves 1 and 2 Replacement

by Erik Soderberg of Liftech and Bill Partridge of Manson.

Presented by Erik Soderberg of Liftech and Bill Partridge of Manson at the APP 100th Annual Conference.

Manson and Liftech have collaborated on several design-build projects. This presentation discusses the latest design-build project from their perspective, including the bid process, the design, and the construction.

South San Francisco Ferry Terminal Opens

Liftech engineers participated in the opening ceremony for the Water Emergency Transportation Authority (WETA) South San Francisco Ferry Terminal at Oyster Point.  The new San Francisco Bay Ferry services will operate between South San Francisco, Alameda, and Oakland. Liftech, as a consultant for Manson Construction Company, designed the terminal’s gangway, float, and dolphins. The Manson-Liftech…

High Performance Pile Connection: McNears Beach Park Pier Repair

by Erik Soderberg.

This paper presents the repair of a damaged wharf structure by replacing the pile connections with a recently developed high-performance connection, which allows for flexible rotation. Testing by the University of Washington has shown that these connections perform significantly better during seismic loading than a classical pile connection.

Extreme Loading of Wharf Crane Girders

by Erik Soderberg, Michael Jordan, Patrick McCarthy, and Anna Dix.

Presented by Anna Dix, Ports 2010 Conference.

This paper and presentation presents what happens when wharf crane girders are subjected to extreme loads near or beyond their calculated design capacity, the performance that can reasonably be expected when extreme loads occur, and when extreme loads should be considered in the design of wharf crane girders.

M 8.8 Chile Earthquake Port Damage Assessment

by Arun Bhimani (contributor: Alberto A. Saez Geraldo of SyS Ingenieros Consultores).
Presented by Arun Bhimani at the TOC Asia 2010 Conference in Shanghai, China.

This presentation provides an update on the damage to the Chilean port facilities from the February 27, 2010, M 8.8 earthquake.

Evaluating the Seismic Capacity of a Newly Designed Wharf at the Port of Oakland

by Shah Vahdani, John Egan, Robert Pyke, Chih-Cheng Ching, Tom LaBasco, and Tom Griswold.

Presented by Erik Soderberg at the Ports 2007 Conference.

This presentation discusses the findings of a seismic capacity study of a recently designed and constructed wharf (Berth 59) at the Port of Oakland (Port).

This study was conducted to evaluate the reserved capacity of the wharf to resist structural collapse during a major seismic event in the Bay Area, California. The wharf was designed according to the Port’s seismic design requirements.

The Floaterm Concept: Reducing Terminal Congestion with Waterside Cranes

by Michael Jordan, Cathy Morris, and Anna Dix.

Presented by Michael Jordan at the Ports 2007 Conference.

Container terminals are becoming increasingly more congested and expensive to operate. Highways and railways are already congested by container traffic and this congestion will worsen. Pollution from port operations is also a rising concern. These factors create a growing need for new, more economical terminal operation methods. Floaterm is a concept that helps alleviate congestion and pollution.
This presentation discusses two variations of Floaterm concepts: midstream and ship-in-a-slip operations. Engineering calculations have been prepared to verify the technical feasibility of the concepts, but are not included here.