The construction of tall and slender buildings has seen recent growth in many cities around the world. Tall are susceptible to dynamic excitation under wind effects which typically govern structural design for strength, stability, serviceability. This paper presents state art analysis against effects. Structural criteria discussed detail, with serviceability relating occupant comfort noted as b...

The main objectives of the research are to characterize the wind-induced resonant and slowly-varying (quasi-static) responses of a tall building under ambient wind excitations based on GPS measurements. The equipment used includes two sets of orthogonally aligned accelerometers, two GPS receivers and an ultrasonic anemometer. The natural frequencies of the wind-induced vibration of the tall bui...

Orthophoto imagery is a valuable layer in a GIS because it provides a generic, inexpensive, and accurate base map. However, in cities with tall buildings it is difficult to create a seamless database of orthophoto imagery. Traditional methods for orthophoto rectification disregard buildings. In this paper, we describe a fully automated process, developed by ASI, that creates true orthophotograp...

Efficient vertical mobility is a critical component of tall building development and construction. This paper investigates recent advances in elevator technology and examines their impact on tall building development. It maps out, organizes, and collates complex and scattered information on multiple aspects of elevator design, and presents them in an accessible and non-technical discourse. Impo...

Seismic retrofitting of important structures is essential in seismological active zones. The importance is doubled when it comes to some buildings like schools, hospitals, bridges etc. because they are required to continue their serviceability even after a major earthquake. Generally, seismic retrofitting codes have paid little attention to retrofitting of foundations due to its construction co...

Open kitchens have been designed for many small residential units in tall buildings in Southeast Asia. This open design, without enclosing the kitchen with fire resisting walls has failed to comply with building fire safety codes in places like Hong Kong. Performance-based design was adopted to determine fire safety provisions. Gas cookers with flames are not allowed. Additional fire protection...

The paper discusses a study on the application of intelligent agents (IAs) to conceptual designing. It provides an overview of the state-of-the-art in the areas of ontologies and IAs. Next, the system Disciple, a learning intelligent agent shell, and the system Inventor 2001, evolutionary design support tool, both developed at George Mason University, are briefly presented. Further, the paper i...

A knowledge acquisition study in the domain of tall building design was conducted. Domain experts, five structural engineers and one architect, were interviewed. The experts were asked a set of questions divided into design process and design content questions, and asked to simulate a design scenario. The experts were also shown, and asked to critique, a prototype implementation of a design gra...

A model is presented for predicting the acrosswind response of isolated square cross-section buildings to typical atmospheric boundary layers, over different terrains. Closed-form expressions for the autoand cospectra of the acrosswind force fluctuations are formulated, based on wind tunnel measurements. A statistical integration scheme is used to develop a mode-generalized acrosswind spectrum ...