Seismic Design Considerations for Uplifted Tanks
An evaluation of the most commonly used seismic design procedures for unanchored tanks is presented. It is noted that current standards are inconsistent in predicting the behavior of unanchored...
Input for Seismic Design of Major Structures
Effective seismic input considering the soil-structure interaction or soil-pile-structure interaction is presented. This approach takes the seismic wave as primitive input and considers...
Seismic Collapse Assessment of Reinforced Concrete Building
In this paper collapse analysis of reinforced concrete frame structures with and without brick infilled walls under a severe earthquake is developed. Because the structural element in...
Nonlienar Seismic Response Analysis of Shanghai Yangpu Bridge
The Yangpu Bridge is a long-span composite cable-stayed Bridge in which the superstructures is designed as a floating system to withstand the strong earthquakes. The nonlinear seismic...
Study of Failures of Towers and Tall Buildings Under Wind Loading
In this paper, two kinds of wind-excited limit states on a tall structure are investigated and corresponding formulae for the limit wind pressures are presented. In solving the wind-excited...
Response of Isolated Structures to Recent California Earthquakes
A significant amount of research and development, shake table testing computer modelling and real world applications have been performed with the seismic isolation design concept in the...
Response of Base Isolated Buildings in Japan to Recent Earthquakes
On February 2nd in 1992, more than 20 base isolated buildings in Tokyo experienced an earthquake of JMA seismic intensity 5. In this event, many acceleration records of isolated buildings...
Large-Scale Earthquake Simulator Study of the Tohoku University Base-Isolated Building
This paper describes a series of earthquake simulator tests of a 1/2.5-scale, base-isolated, three-story, reinforced-concrete building. Three different types of elastomeric seismic isolation...
Observed Response of Actively Controlled Structures
Several active control systems have been developed, fabricated, and installed in full-scale structures and they have been subjected to actual wind forces and ground motions. The focus...
Evaluation of Code Accidental-Torsion Provisions Using Earthquake Records from Buildings
Building code provisions for accidental torsion are evaluated from analysis of earthquake-induced motions of three nominally-symmetric-plan buildings. The results demonstrate that the...
Building Separation Rules to Avoid Seismic Pounding
A method to estimate the required separation to preclude pounding between adjacent buildings is presented. It accounts for the effect of yielding on the vibration phase of adjacent buildings....
Improved Torsional Analysis Procedure for Single Story Structures Subjected to Seismic Motion
An analytical procedure is developed that enables designers utilizing the UBC planar lateral force procedure to accurately account for the additional lateral response due to torsion without...
Displacement Amplification Factor for Seismic Design Provisions
To estimate the maximum roof and story drifts occurring during severe earthquakes, the UBC and NEHRP use 3Rw/8 and Cd...
Evaluation of US Seismic Code Provisions for Asymmetric-Plan Systems
The effects of plan asymmetry on the earthquake response of code-designed, one-story systems are identified with the objective of evaluating how well these effects are represented by torsional...
Earthquake Resistant Design and Construction of Reinforced Concrete Buildings. The Practice in Mexico After 1985
The evolution of the design and construction practice of reinforced concrete buildings in Mexico is presented in terms of materials, structural systems, member design and reinforcement...
Techniques for Seismic Rehabilitation of Buildings in Mexico City
The 1985 earthquake in Mexico City caused collapse or damage of a large number of engineered buildings. After this event several hundreds of buildings were retrofitted using several techniques....
Empirical Prediction of Strong Ground Motion
In 1982, we published equations for the prediction of various measures of ground motion as a function of earthquake magnitude, distance from the earthquake rupture, and site geology. Many...
New Methods to Characterize Site Amplification
Methods alternative to spectral ratios are introduced to characterize site amplification. The methods are developed by using a range of models, from the simple constant amplification model...
Response of Knee-Brace-Frame Under Seismic Loading
Recently a new framing system called the Knee-Brace-Frame (KBF) has been proposed for seismic resisting structures to overcome the deficiencies of moment resisting frame and concentrically...
Seismic Upgrade Design of Buildings
Building owners and users in seismically prone areas are becoming increasingly aware of the potential risks associated with the seismically hazardous buildings in the region specially...
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