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Deficient Shear Walls

Deficient Concrete Shear Walls

Reinforced concrete shear wall structures constructed in the 1970’s or earlier suffer from a number of deficiencies in design and detailing. This is around the time when seismic provisions emerged in the design codes, and changed the traditional strength-based design ...
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Deficient Concrete Shear Wall

Design of Concrete Shear Walls

Share on linkedin Share on facebook Share on twitter Share on telegram Share on whatsapp Share on email Reinforced concrete (RC) shear walls have long been recognized as suitable structural systems, providing both lateral resistance and drift control in RC ...
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Patch Repair

Patch Repair: Dos and Don’ts

What happens when the patch repair is only done in damaged area?  When a corrosion sign and rust stain appear on the concrete surface, it is the time to do something in order to stop corrosion propagation. Depending on corrosion ...
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What is Ground Penetrating Radar

What is Ground Penetrating Radar

Ground Penetrating Radar (GPR) provides a cost-effective, nondestructive and reliable tool for scanning and imaging of sub-surface defects, voids, and objects. GPR was primarily developed and used in geophysics and geology for subsurface scanning and imaging. Since then, the method ...
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IOT - Intelligent Bridge Monitoring

Intelligent Bridge Monitoring

Have you ever imagined what would happen if highway bridges could speak?: “That I broke an arm? That I have a steel tendon ruptured? …” Well, they are not too far anymore. intelligent Bridge Monitoring Last week, I had the ...
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ASR-Corrosion

Corrosion in Concrete

It is common to see map crack networks over the concrete elements of aged infrastructure along with leaching signs. It might be interesting to know that no structural collapse has been reported so far because of the ASR cracking in ...
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Modeling Existing Shear Walls

Modeling Existing Shear Walls

Modeling existing shear walls can be quite challenging. The first question to ask is how far we want to go – and how much we want to spend on- when it comes to modeling a wall structure. The modeling can ...
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Reinforced Concrete Shear Walls

Reinforced Concrete Shear Walls

The chapter on seismic behavior and retrofit of existing reinforced concrete shear walls is still wide open. Researchers and engineers around the world are trying hard to develop new materials and innovative techniques for seismic upgrade of concrete structures. But ...
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