Experimental Studies, Structural Design and Full-Scale Measurements for the Columbia Seafirst Center
The Columbia Seafirst Center is a 76-story office tower located in downtown Seattle, Washington. It rises to a height of about 940 feet above ground and is the world's 10th...
Comparison of Predicted and Measured Dynamic Behavior of Allied Bank Plaza
Structural engineering aspects of a monitoring program to measure Allied Bank Plaza tower's dynamic response to wind are presented. In particular, field data developed during...
Design of Viscoelastic Dampers for Columbia Center Building
To reduce the dynamic response of a building with a given height and plan area to wind load, aside from inherent damping of the building, the designer has a few options available to him/her....
Performance of Viscoelastic Structural Dampers for the Columbia Center Building
Vibratory motion of structures such as buildings, bridges, and floors can be reduced by the use of viscoelastic (V. E. ) dampers. Such dampers transfer part of the vibratory energy of...
Monitoring a Bridge's Pulse
The Sunshine Skyway Bridge, which collapsed in 1980, is being replaced by the Florida Department of Transportation. The new Sunshine Skyway Bridge, which spans Tampa Bay between Bradenton...
Complex Tower Meets Quake Code
A Los Angeles building consists of a triangular 23-story office tower stacked on top of an 11-story rectangular parking garage. The dual-shape is unique in seismically active southern...
Soil Quality Testing in Ports: Why?
The Port of Seattle has instituted an agency-wide environmental protection guidelines which include the option to prepare site histories and perform chemical screening of soils prior to...
Siltation of the Port of Astoria
Sedimentation rates suddenly increased in the Port of Astoria, Oregon, immediately following the May 18, 1980 ash eruption of Mt. St. Helens. This ash was transported down the Columbia...
Port of Long Beach Supertanker Terminal
The supertanker marine terminal and crude-oil transfer facility at Berth 121 on Pier E in the Port of Long Beach, California is the largest tanker-handling berth on the West Coast. This...
Research on the Strength Characteristics of Timber Piling
Research on the strength characteristics of wet Southern Pine and Douglas Fir piling and poles is presented. Included are background information on wood's strength characteristics,...
Design Concepts for Floating Breakwaters
This paper describes a fundamental approach to the design of a floating breakwater based on the concepts of dynamic analysis of floating bodies. The process results in a relatively simple...
Fisherman's Wharf Breakwater Design and Construction
Fisherman's Wharf Breakwater is a precast prestressed concrete structure presently under construction. It consists of vertical sheet piles braced at the top by batter piles....
Development of Prestressed Concrete Fender Piles
An ongoing effort is reported to develop prestressed concrete fender piles for use in a wide range of pier fendering applications. Preliminary analysis and testing results indicate that...
Underwater Compaction of Sand Fill During Placement
A system and related equipment have been developed, and tested on a recent dredged fill project, to compact sand, either clean or with limited silt, in lifts several feet in thickness...
Seismic Design of Earth Retaining Wharf Structures
Seismic design considerations pertinent to earth retaining wharf structures are reviewed. These considerations include: evaluation of the seismic environment and design earthquake ground...
Marginal Wharf and Embankments?Seismic Design
This paper presents some of the seismic considerations used for the improvements at Berths 225 to 229 at the Port of Los Angeles. The design of the improvements was complicated by the...
Recent Advances in Structural Dynamics
The four papers in this book emphasize the design, testing, and analysis of large structures. The topics covered include base isolation in the design and construction of power plant structures,...
Dynamic Response of Structures
The primary goal of the third specialty conference on the dynamics of structures was to provide a forum for dialogue between engineers conducting experimental tests and those developing...
Lifeline Seismic Risk Analysis?Case Studies
These papers employ design concepts and procedures in lifeline seismic risk analysis. Two of the papers describe the seismic hazards in the northwestern United States. A systems model...
Effects of Deterioration on Safety and Reliability of Structures
Deterioration of structural and non-structural elements in commercial, industrial and residential constructions is of general concern to investors, design engineers, architects, contractors...
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