Consolidating concrete bridge structure applications

Both experimental and analytical investigations are of interest.

The session brings to light recent research findings and provides an opportunity to discuss present challenges and technical demands.

Ultra-High Performance Concrete (UHPC), also known as reactive powder concrete (RPC), is a high-strength, ductile material formulated by combining portland cement, silica fume, quartz flour, fine silica sand, high-range water reducer, water, and steel or organic fibers.

The materials are usually supplied in a three-component premix: powders (portland cement, silica fume, quartz flour, and fine silica sand) pre-blended in bulk-bags; superplasticizers; and organic fibers.

Papers on evaluation methods, prediction models, reliability analysis, and code calibration will be presented.

ACI Subcommittee 440-M, FRP-Repair of Masonry Structures, is sponsoring this technical session focusing on various applications of fiber-reinforced polymer (FRP) systems for masonry structures.

The station's 24 thin-shelled canopies, 16.7 feet by 19.7 feet, and just 0.79 inch thick, supported on single columns, protect commuters from the elements.

The material's unique combination of superior properties and design flexibility facilitated the architect's ability to create the attractive, off-white, curved canopies.

Troughs were cast through displacement molding, while struts and tie beams were produced using conventional gravity two-stage castings.

Then, the right and left half-shells, along with the tie beams, were pre-assembled in the plant and transported to the site where they were lifted (by crane) over the railway tracks, for placement on the columns (Figure 3).

Critical information is given to those who lead tomorrow’s structural design and construction, including practicing engineers, government officials, and academics.

Learn about emerging trends in the metallurgy of high-strength (HS) steel reinforcement, design considerations, current research focusing on ductile and non-ductile behavior of concrete structures reinforced with HS, and proposed ACI Subcommittee.

Consolidating concrete bridge structure applications