shear wall

Major Techniques for Modeling Shear Walls

Modeling Shear Walls Modeling shear walls have changes during the last two decades. Analyses techniques have moved from linear static to nonlinear dynamic, enabling more realistic modeling and simulations. Different approaches for modeling shear walls span from macro models such as modified beam-column elements, to micro models such as 3D finite element models. An appropriate modeling Read more about Major Techniques for Modeling Shear Walls[…]

Why and When to Use Concrete Piles?

Concrete Piles and drilled shafts are an important category of foundations. Despite their relatively high cost, they become necessary when we want to transfer the loads of a a heavy superstructure (bridge, high rise building, etc.) to the lower layers of soil. Another reason for choosing a pile foundation is the condition and quality of Read more about Why and When to Use Concrete Piles?[…]

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 philosophy (EVOLUTION OF DESIGN CODES). In this article, we will briefly review common problems with deficient Read more about Deficient Concrete Shear Walls[…]

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 North America. However, the question arises as to whether it is required to manage ASR Read more about Corrosion in Concrete[…]

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 why is this so important? Reinforced concrete shear walls have long been recognized as suitable Read more about Reinforced Concrete Shear Walls[…]