Seismic Retrofit: Strengthening Stiff Columns Not the Answer

New Method for Stabilizing Phosphatic Clay by Using Lime Columns

Analysis of a Concrete Cylinder with a Composite Hoop Wrap

Effect of Materials Architecture on Strengthening Efficiency of Composite Wraps for Deteriorating Columns in the North-East

Concrete Columns Reinforced with Fiber Reinforced Plastic Rebars

Laboratory Performance of Quartzite Based Stone Matrix Asphalt Mixtures (SMAM)

Seismic Retrofit of Existing Reinforced Concrete Columns by Glass-Fiber Composites

New Concept for Wrapping Columns with a High Strength Fiber/Epoxy System

Soft Dikes an Answer to Stone-Dike Collisions

Columnless in Chicago
The United Center in Chicago is now home to the Bulls basketball team and the Blackhawks hockey team. The arena features luxury suites, a column-free interior and unobstructed views. An...

Fiber Jackets Put the Wraps on Bridge Columns

Assessment and Testing of Column Lap Splices for the Santa Monica Viaduct Retrofit
This paper describes assessment and the full-scale test of a 3 ft. (914 mm) dia. column containing #11 (34.9 mm dia.) reinforcing steel lap-spliced in the critical region. The column modelled...

Seismic Strengthening of R/C Columns Using Steel Jackets
This paper presents experimental results on the use of steel collars and steel jackets as a retrofitting system to improve the seismic performance of short rectangular reinforced concrete...

Ductility Analysis for Seismic Retrofit of Multi-Column Bridge Structures, Santa Monica Viaduct
A new procedure is being developed for the ductility analysis of multi-column bridges. The formation of the plastic hinges in the structure (columns and/or superstructure) is followed...

Seismic Behavior of Weak-Column Strong-Beam Frames
An experimental evaluation of the seismic performance of moment-resisting steel frames using Weak-Column Strong-Beam joints is described. A simulated seismic response is imposed on five...

Some Unresolved Issues in Seismic Steel Codes
In the latest revisions of the three major U.S. seismic codes (AISC, NEHRP, UBC) some requirements can be questioned because of limited knowledge. Confining attention to conventional kinds...

A Wind Tunnel Study of an Aeroelastic Model of the Florida Suncoast Dome
Very large scale cable domes have been built using prestressed, high strength steel cable or strand, steel tube columns and a lightweight fiberglass skin. Geiger Engineers Florida Suncoast...

Seismic Behavior of High Strength Concrete Columns
Information on the ductility of high strength columns in seismic areas has been scarce. The available information is based mainly on small test columns subjected to monotonic concentric...

High-Strength Concrete Joints Under Cyclic Loading
This experimental investigation was undertaken to check the validity for high-strength concrete beam-column joints of recommendations made by ACI-ASCE (American Concrete Institute-American...

Long-Span Design for Seismic Forces—A Case Study of the Anaheim Arena
The design for the Anaheim Arena roof evolved in response to the strict requirements for a structure in a seismic zone 4 location. The support of the 329 ft. (100 m) by 444 ft. (135 m)...

 

 

 

 

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