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Microalgae Tall Buildings
Published in Kyoung Hee Kim, Microalgae Building Enclosures, 2022
The curtain wall, one of modern tall building envelope constructions, offers multi-performance capabilities and unique aesthetic features. There are a growing number of all glazed curtain wall skyscrapers in metropolitan cities such as New York, Hong Kong, Shanghai, and Dubai. Although the design, procurement, production, and installation of a curtain wall is particular to each project, the global curtain wall market in general is increasing from $32 billion in 2019 and expected to reach $66 billion in 2027,1 accounting for approximately 30% of the overall global building enclosure market.2 Contemporary skyscraper enclosures typically adopt a curtain wall system primarily due to its faster construction and good quality control. The prefabricated and factory-assembled system allows speedy installation without the need for many laborers and elaborate scaffolding on-site. Contemporary curtain wall practice adheres to systematic quality assurance and quality control (QA/QC) protocols according to industry standard, ensuring targeted performance and workmanship.
Concerning the research “Material history of the built environment and the conservation project” (2008–2020), methodology and results
Published in João Mascarenhas-Mateus, Ana Paula Pires, Manuel Marques Caiado, Ivo Veiga, History of Construction Cultures, 2021
The third part, which deals with glazed surfaces since the 1960s, testifies to the technological breakthrough that was made not only with glass products, which become insulating, structural and durable – Thermopane, Polyglass, etc. – but also with synthetic plastic and elastic products and frames that have become true technological objects. Examples are the highly sophisticated window frames designed by Jean Prouvé for the Nobel Tower in Paris. All the same, they require maintenance and repair. Sometimes an accident requires emergency intervention, as happened with the damaged curtain-wall of the Pirelli skyscraper in Milan. It was dismantled piece by piece, restored and then reassembled in keeping with the standards of monumental restoration, a world first to be considered in relation to possible intervention strategies dealing with this type of component.
Bogardus revisited
Published in Robert Thorne, Structural Iron and Steel, 1850–1900, 2017
Here, at one stroke, Bogardus anticipated the iron-skeleton, curtain-walled skyscraper of the next generation. It antedated Préfontaine’s warehouse at the St. Ouen Docks by a decade.100 Saulnier’s Turbine Building for the Menier Chocolate Company at Noisiel-sur-Seine was sixteen years in the future.101 All that Bogardus’ tower lacked to equal the final structural solution of the skyscraper was to protect the ironwork from fire by imbedding it within the masonry. Nevertheless, Bogardus did not invent curtain-wall construction. Examples lay all around him. Consciously or subconsciously, he adapted a principle widely used in medieval half-timbered construction. In the 1860’s, when French architects adopted the same iron-framed, masonry panelled system, in naming it their term for “half-timber,” pan de bois, with great lucidity became pan de fer.102 Did Bogardus reason thus? He may well have done so, since the better-built wood-framed houses of his day still commonly used brick nogging. His contribution was simply to combine the framework of an iron lighthouse with a masonry jacket.
Monitoring wind effects of a landfall typhoon on a 600 m high skyscraper
Published in Structure and Infrastructure Engineering, 2019
Qiusheng Li, Yuncheng He, Yinghou He, Kang Zhou, Xuliang Han
Ping An Finance Center (PAFC) is located at the central business district of Futian in Shenzhen, China. With the main structure erecting to 600 m, it is currently the fourth highest building in the world and the second tallest in China. The skyscraper consists of 118 floors above ground and has a footprint of 63 × 63 m. To enhance the resistance to lateral and vertical loads for such as a high and slender building, PAFC comprises a mega-frame core tube structure which is of a combination of three parallel systems: mega-frame structure, reinforced concrete core, and outrigger trusses that connect the core with the mega-frame, as shown in Figure 1. In addition, the skyscraper is equipped with two sets of active tuned mass damper (ATMD) systems to mitigate excessive wind-induced structural response. But the systems were not put into use during this observational study.