Tall Building Criteria and Loading


Book Description

Prepared by the Council on Tall Buildings and Urban Habitat of ASCE. This report examines the loads to which tall buildings are subjected so that engineers can precisely define the related structural elements that are necessary before translating a client's needs into a safe design. The report explores five different classes of loads?gravity loads and temperature affects, earthquake loads, wind loading and wind effects, fire, and accidental loads?as well as quality control and overall safety considerations.ØSteel buildings, which hold the record for height, tax the designer's ingenuity to provide adequate resistance to lateral loading. Concrete buildings are both more numerous and widely distributed, and for them vertical gravity loads may be the chief problem. Both steel and concrete buildings and lateral and vertical loads are addressed. Other subjects covered include: dead, live, cyclic snow, construction, and combined loads; code requirements; meteorological and environmental factors in design; firefighting provisions; and modeling. Contributions came from more than 800 contributors, all international and professional and heavily representing design and industrial firms. Condensed references follow each chapter, and a glossary is included.







NBS Technical Note


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Second Century of the Skyscraper


Book Description

tenant is looming in importance. The owner is having more influence on the building. As Gerald D. Hines has said, there are indications that the desire for more discretionary time will lead to more residential high-rises dose to or in the midst of downtown office buildings. Downtown living could become the desired alternative. Tall buildings will be approached increasingly from the standpoint of an urban ecology - that what happens to apart can influence the whole. Provid ing for public as well as private needs in a tall building project is just one example (facilities for schools, shops, religious, and other needs). More attention will be paid to maintaining streets as lively and interesting places. Will a new "world's tallest" be built? Will we go a mile high? The answer is probably "yes" to the first, "no" to the second. With the recent spate of super-tall buildings on the drawing boards, going to greater heights was in the back of many people's minds at the Chicago conference. But in the U nited States, at least, buildings of 70 to 80 stories would appear to provide needed space consistent with economy. The future, then, is described in depth by papers that go into specific areas.







Chicago Skyscrapers, 1934-1986


Book Description

From skyline-defining icons to wonders of the world, the second period of the Chicago skyscraper transformed the way Chicagoans lived and worked. Thomas Leslie’s comprehensive look at the modern skyscraper era views the skyscraper idea, and the buildings themselves, within the broad expanse of city history. As construction emerged from the Great Depression, structural, mechanical, and cladding innovations evolved while continuing to influence designs. But the truly radical changes concerned the motivations that drove construction. While profit remained key in the Loop, developers elsewhere in Chicago worked with a Daley political regime that saw tall buildings as tools for a wholesale recasting of the city’s appearance, demography, and economy. Focusing on both the wider cityscape and specific buildings, Leslie reveals skyscrapers to be the physical results of negotiations between motivating and mechanical causes. Illustrated with more than 140 photographs, Chicago Skyscrapers, 1934–1986 tells the fascinating stories of the people, ideas, negotiations, decision-making, compromises, and strategies that changed the history of architecture and one of its showcase cities.




Earthquakes and Earthquake Insurance


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Reinforced Concrete Structural Reliability


Book Description

Structural engineers must focus on a structure's continued safety throughout its service life. Reinforced Concrete Structural Reliability covers the methods that enable engineers to keep structures reliable during all project phases, and presents a practical exploration of up-to-date techniques for predicting the lifetime of a structure. The book a




Reinforced Concrete Structural Reliability


Book Description

Structural engineers must focus on a structure’s continued safety throughout its service life. Reinforced Concrete Structural Reliability covers the methods that enable engineers to keep structures reliable during all project phases, and presents a practical exploration of up-to-date techniques for predicting the lifetime of a structure. The book also helps readers understand where the safety factors used come from and addresses the problems that arise from deviation from these factors. It also examines the question of what code is best to follow for a specific project: the American code, the British Standard, the Eurocode, or other local codes. The author devotes an entire chapter to practical statistics methods and probability theory used in structural and civil engineering, both important for calculating the probability of structural failure (reliability analysis). The text addresses the effects of time, environmental conditions, and loads to assess consequences on older structures as well as to calculate the probability of failure. It also presents the effects of steel bar corrosion and column corrosion, and precautions to consider along with guides for design. This book offers guidelines and tools to evaluate existing as well as new structures, providing all available methods and tests for assessing structures, including visual inspection and nondestructive testing for concrete strength. It also presents techniques for predicting the remaining service life of a structure, which can be used to determine whether to perform repairs or take other action. This practical guide helps readers to differentiate between and understand the philosophy of the various codes and standards, enabling them to work anywhere in the world. It will aid engineers at all levels working on projects from the design to the maintenance phase, increasing their grasp of structure behavior, codes and factors, and predicting service life.