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Demands for Innovation in Power Construction
This paper identifies some specific demands for innovation on power projects, reviews the alternatives considered to meet project objectives, and describes the resulting innovations. Examples...

Attaching Steel Members to Reinforced Concrete Elements
A variety of structural systems have been devised to strengthen existing buildings for improved seismic resistance. Strengthening methods currently in use for reinforced concrete structures...

Seismic Tests of Friction Damped Steel Frames
This paper presents the results obtained from qualification tests of a new friction damping system, which has been proposed in order to improve the response of Moment Resisting Frames...

Hysteretic Behavior of Composite Diaphragms
Floor systems constructed with steel-deck-reinforced concrete are described. When used to resist lateral loads these systems are referred to as diaphragms. A description of a test arrangement,...

Cyclic Energy Absorption by Reinforced Concrete
Results are presented on the basis of experiments conducted on conventional and steel fibrous reinforced concrete beams. The effects of the amount and nature of steel reinforcement and...

Building Records from 1984 Morgan Hill Earthquake
The dynamic response of 23 structures instrumented by the California Strong Motion Instrumentation Program was recorded during the magnitude 6. 2 (ML) Morgan Hill earthquake of 24 April...

Seismic Behavior of a Full-Scale K-Braced Steel Frame?Part I Gross Behavior
As a part of the U. S. -Japan Cooperative Research Program Utilizing Large-Scale Testing Facilities, a six-story, 2 by 2 bay, concentrically K-braced steel building was constructed in...

Seismic Behavior of a Full-Scale K-Braced Steel Frame?Part II Local Behavior
The full-scale six-story concentrically K-braced steel building was subjected to Miyagi-Ken-Oki simulated earthquake whose peak intensity was 500gal. Local behavior of the test building...

Earthquake Response Simulation Capacity of Pseudo Dynamic Testing?Experimntal Demonstration and Analytic Evaluation
The response accuracy of the pseudo dynamic test was evaluated from the shake table and pseudo dynamic tests conducted for a two story steel braced frame model. The obtained responses...

Full Scale Tests of Cladding Components
A full scale, six story, steel frame at the Building Research Institute, Tsukuba, Japan was constructed for a series of projects in the U. S. -Japan Cooperative Research Program. This...

System Identification Applied to Pseudo-Dynamic Test Data: A Treatment of Experimental Errors
A single-input single-output system identification technique, used to estimate the modal properties of a full-scale six-story steel structure tested within its elastic range by the pseudo-dynamic...

Comparative Seismic Response of Damped Braced Frames
The behaviours of braced steel building frames with friction joints and with eccentric bracing, under seismic forces, are compared. Nonlinear time history dynamic analysis is used. Friction...

Interaction Effects in Vertically Excited Steel Tanks
Following a brief review of the hydrodynamic effects induced by a vertical component of ground shaking in liquid-filled, circular, cylindrical, steel tanks that are rigidly supported at...

It's Only Visual Inspection (Welding Inspection)
Unless specified otherwise in the Contract Documents, Visual Inspection will be performed on all fabrication/erection welding for projects that utilize the Specifications for the Design,...

The Public/Private Condo
A 20-story office building in Chicago was built on publicly owned land under a condominium arrangement that allowed a developer full ownership of air rights over and above the 100,000...

The Parking Problem
Corrosion of parking garage decks has become a multi-billion dollar problem, caused primarily by deicing salts that seep into the concrete and attack reinforcing steel. Design and construction...

Computer Cuts Tower Steel
Two computer programs developed by Lev Zetlin Assoc., New York City, revealed that some of the steel in what will be Philadelphia's tallest building, One Liberty Place, was...

Innovations in the Design of Electrical Transmission Structures
New concepts are being advanced for the design of electrical transmission structures. The papers in this book cover the following: weather-element loading conditions, structural options,...

Port Expansion of Eastport, Maine
A recent pier expansion now allows Eastport to provide 40 feet of water at low tide. The pier expansion consists of a concrete-decked steel pipe pile-supported extension to an existing...

Prestressed Concrete Piling?Design vs. As-Built
The proper design, manufacture, handling and installation of prestressed concrete piles is essential to their structural integrity and long life. A quality control program must be designed...

 

 

 

 

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