There are tradeoffs to everything; there is no perfect material. Using fly ash as recycled content in concrete solves one problem (how to dispose of a hazardous industrial by-product), but is it perpetuating the justification of burning coal as a fuel source?
PVC is unique within the broad spectrum of plastics because it is a chlorinated plastic. Its chlorinated chemistry is responsible for a range of environmental and human health hazards.
Many flame retardants are persistent, bioaccumulative, and/or toxic, and the building products that incorporate them can be avoided in many cases.
Mass timber high-rise construction is gaining momentum in the United States. Developers are finding that along with its beautiful aesthetic and sustainable appeal, mass timber is a cost competitive and schedule-advantaged structural material. Using the mass timber and concrete designs presented by Timmers et al in the report Mass Timber High-Rise Design Research: Museum Tower... Read more »
This study demonstrates a design of a code-compliant, highrise mass timber apartment tower in Los Angeles. Using the existing reinforced concrete Museum Tower Apartment building in downtown Los Angeles as a basis, the study demonstrates architectural, structural and fire performance improvements and trade-offs of the mass timber design compared to the reinforced concrete design. The... Read more »
ABSTRACT: The paper will discuss the design of a bi-directional thermo-hygroscopic façade as a dedicated outdoor air system to cool and dehumidify outside air. The system is a variant of dedicated outdoor air systems to separate dehumidification and cooling in air-conditioning equipment and locates components within the building envelope. The integrated hybrid-building envelope relies on... Read more »
ABSTRACT: Available energy analysis and optimization methods do not produce fast and accurate enough results to provide guidance to professional design teams making massing and technology decisions. This paper proposes two methods using the reduced-order Energy Performance Calculation (EPC) toolkit with parametric building models and optimizers in Rhinoceros, Grasshopper and MATLAB to provide rapid feedback... Read more »
Abstract Parking is among the most discussed topics in local politics, with citizens and business owners frequently concerned that supplies are too low. However, numerous research efforts have shown that parking is routinely oversupplied in single-use districts in the United States, and others have documented the same trend in mixed-use districts. This research considers parking... Read more »
The open office has been a central theme in contemporary workplaces, reasoned to provide flexibility, natural light, supervision, cost savings, transparency, democracy, and collaboration. While almost 70% of US workers occupy open plan or open seating settings (International Facility Management Association, 2010), this design strategy remains contentious (Kim & de Dear 2013). These settings may... Read more »
The facade is one of the most significant contributors to the energy budget and the comfort parameters of any building. Control of environmental factors must be considered during the design process. High-performance facades need to block adverse external environmental effects and maintain internal comfort conditions with minimum energy consumption. The purpose of this research was... Read more »