Published: Jan 1992
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This manuscript includes an overview of architectural design research on the subject of cyclical and non-cyclical ‘movement systems’ encountered in the design and construction of highrise building towers. Furthermore, it takes into consideration the need for structural ‘accommodation’ and ‘resistance’ of these multiple movements and ‘movement systems’ in the design, manufacture, application and maintenance of ‘building seals and sealants’.
This presentation includes a basic review of architectural and structural design factors, building codes and standards for the effects of both ‘live load’ and ‘dead load’ on the structural building frame and ‘exterior building envelope’. It also addresses the application of appropriate construction materials and building systems including ‘cladding and glazing systems’. Due consideration is given to the development of design standards and the standard design details required, to accommodate these movements. The accumulative single and multiple effects of wind and seismic forces, as well as gravity and thermal loads are also addressed.
Practical examples of water infiltration problems and inadequate design details, specifications, material applications, waterproofing methods and challenges are noted. References to ‘building seals and sealants’, including the phenomena of ‘curing’, ‘creep’, ‘elongation’, ‘elasticity’, ‘plasticity’, ‘yield limits’, ‘electrolysis’ ‘stress’, ‘strain’, ‘fatigue’, ‘adhesion’, ‘cohesion’, and ‘bonding’, are also presented. Maintenance factors to be considered in remedial repair specifications, design details and installation methods, are also referenced in this manuscript.
Design challenges by architects, developers, and building owners for contractors and manufacturers of ‘building seals and sealants’ are also noted.
building movement, building seals, sealants, highrise, structure, exterior wall panels, applications, specifications, design details, building standards, deficiencies, quality control, testing, technical literature
architect-planner and construction litigation/expert witness consultant, Honolulu, Hawaii