High-rise Towers Research Articles

The “Third Rome” of Fascism: Demolitions and the Search for a New Urban Syntax

Previous articleNext article No AccessArticlesThe “Third Rome” of Fascism: Demolitions and the Search for a New Urban SyntaxAristotle KallisAristotle KallisLancaster University Search for more articles by this author Lancaster UniversityPDFPDF PLUSFull Text Add to favoritesDownload CitationTrack CitationsPermissionsReprints Share onFacebookTwitterLinkedInRedditEmail SectionsMoreDetailsFiguresReferencesCited by The Journal of Modern History Volume 84, Number 1March 2012 Article DOIhttps://doi.org/10.1086/663287 Views: 392Total views on this site Citations: 2Citations are reported from Crossref © 2012 by The University of Chicago. All rights reserved.PDF download Crossref reports the following articles citing this article:Aristotle Kallis ROME'S SINGULAR PATH TO MODERNISM: INNOCENZO SABBATINI AND THE ‘ROOTED’ ARCHITECTURE OF THE ISTITUTO CASE POPOLARI (ICP), 1925–1930, Papers of the British School at Rome 85 (Aug 2017): 269–301.https://doi.org/10.1017/S0068246217000083 Bibliography, (Oct 2013): 432–474.https://doi.org/10.1002/9781118610459.biblio

Seismic design of high-rise towers for cable-stayed bridges under strong earthquakes

This paper presents the first of a series of studies on the seismic design of high-rise towers for cable-stayed bridges under strong earthquakes. One practical cable-stayed bridge with a 730 m long main span and two high-rise towers over 200 m in height was selected for this study. The preliminary results show that compared with piers, the tower is more vulnerable to pulse-like earthquakes, and it may develop plasticity at certain locations. In addition, viscous dampers may not have the same effect during pulse-like earthquakes as they do under site-specific earthquakes. Hence, reoptimization of damper parameters or reconsideration of other energy dissipation devices will be needed if strong earthquakes are likely to occur.

Study of Self-Compacting Fly Ash Concrete Using Silica Fume Admixture

Concrete is the key material used in construction of various types, from flooring of a dwelling to multi-storied high rise structures, from pathways to an airport runways, from under ground tunnels and deep sea platforms to high-rise chimneys and towers. The greatest challenge in this millennium, especially in developing country like India, it needs to build concrete structures in quicker time, so as to meet high infrastructural demand. In order to achieve this, concrete construction practices will have to undergo a sea-change in the country. The study was focused on development of self-compacting concrete using high volume fly ash, admixed with quary dust and Silica fume. The objective of the study included evaluation of properties, viz. compressive strength, weight change observations in sulphate environment and resistance to chloride ion penetration. Several trial mixes were tested before optimizing the three Self-Compacting Concrete mixes based on binary and ternary blends. The strength variation of individual cubes in each of the mixes has been observed to be in the range of 28 to 46 MPa. Self-compacting concrete using high volume flyash, admixed with quary dust and Silica fume mixes have performed extremely well in aggressive chloride environments. Samples cured for 90 days and exposed to sulphate environment had reduced strengths compared to those cured in tap water, in all the blends. But the percentage reduction is lower in case of ternary blends as compared to control concrete. Keywords: Self-Compacting Concrete (SCC), Compressive Strength, High volume flyash, Quary dust, Silica fume, Supplementary Cementious Material (SCM).

Seismic Response Analysis of a High-Rise Tower with Complex Structure

The complex tower structure appears as modeling of palms together, which is designed as steel frame-core tube structure. This paper uses SAP2000 to analysis seismic response respectively on the linear and elastic-plastic stage, and puts forward some specific suggestions for seismic design according to the analysis and calculation.

Effects of Outrigger Truss Systems on Collapse Initiation Times of High-Rise Towers Exposed to Fire

In this paper, progressive collapse analyses were performed on a 30-story, seven-span tower that was exposed to fire. The Adaptively Shifted Integration (ASI)-Gauss technique was used to demonstrate the effects of fire patterns and structural parameters on collapse initiation time: the duration from the beginning of the fire until collapse initiation. Specifically, an outrigger truss system was placed on the roof of a model, and the influence of the system on the structural vulnerability of the tower was verified. The structural parameters that were varied in the analyses included the axial force ratio, the member joint strength ratio and the member strength ratio of the outrigger trusses to the strength of the beams on the first floor. From the numerical results, it is confirmed that collapse initiation times are significantly affected by the member joint strength ratio if the axial force ratio is small (floor loads are low) on the condition that the fire pattern is nearly symmetrical, and the load paths to and from the outrigger truss system are sufficiently protected.

Public injecting drug use and the social production of harmful practice in high-rise tower blocks (London, UK): A Lefebvrian analysis

This paper presents, qualitative findings relating to specific environments hitherto unrecognised as settings used for the injecting-use of illicit drugs in an urban setting. This concerns the temporary appropriation of communal space within high-rise social-housing by injecting drug users (IDU); specifically those settings used by tower-block residents for garbage disposal ('bin chute rooms'). These environments were found to be used on daily, habitual bases by all IDU interviewed during the study. Such settings were found to contribute to a wide range of injecting-related harm and hazard. These findings further debate concerning the negative effect of place on health risk in the context of ′public' injecting drug use. These results are situated within Lefebvre's theoretical framework concerning the 'production of space'. It is contended that the 'representational spaces' shaped by IDU creates a dialectic between wider 'spatial practice' and 'representations of space'. Accordingly, it is further suggested that particular 'spaces' of harm reduction (such as 'safer injecting facilities') should be considered in UK settings in order to address injecting-related harm.

Simulation of Wind Effects Embracing a Complex Shape Super High-Rise Steel TV Tower Using CFD

Full scale Ningxia super high-rise steel TV tower (NXTVT) model is established in the numerical simulation to investigate the flow field around it. And then, the UDF program of mean wind section plane, turbulence kinetic energy and turbulence dissipation rate were compiled. The flow fields under these two typical inflow conditions, 30 degree is chosen as the field measurement data. The results show that both the RNG model and the Realizable model can simulate the distribution rule and similarity. Both can give reasonable turbulence kinetic energy distribution in the region of windward sharp edge, where flow separation occurs. Subsequently, the mean pressure field with certain precision can be obtained in the highly turbulent negative pressure region.

Everyday misadventures of the Everyman of interpretation

Sam traveled to Denver, the Mile High City, for the SEG 2010 Annual Meeting. As he rode in the shuttle from Denver International Airport to his hotel, he took in the view of the distant downtown skyline against the background of the Rocky Mountains and thought of Houston, which has its own array of high-rise towers and office buildings but without any framing geology. No matter—he has seen that same Houston skyline set in a multicolored Texas sunset, an image he thinks is mighty hard to beat.

Feasibility analysis of solar photovoltaic array cladding on commercial towers in Doha, Qatar – a case study

Building-integrated photovoltaic (BIPV) technology has become a major area of research due to environ-mental concerns. This article studies the feasibility of cladding high-rise towers in Doha with solar photovoltaic modules. Specifically, the case of the Qatar Financial Centre (QFC) is discussed. The major aim of the work is to evaluate the technical feasibility, economic impact and environmental effects of using photovoltaic panels on commercial towers in Qatar. Experimental data on solar irradiance and the effect of shading on the QFC Tower are presented. Numerical calculations are done using solar pathfinder software. The studies show that, although there is a significant amount of saving in CO2 emission by using BIPV on towers in Doha, the payback period is still very long due to the cheaper cost of grid electricity in Qatar and poor conversion efficiency of PV panels. The complete system layout is presented and viable solutions are investigated.

Wind effects on tall building frames-influence of dynamic parameters

In the recent past many tall buildings and high rise towers are being built in India. The impact of wind loads are to be considered for the design of these towers on par with steel towers like transmission towers, microwave towers, cooling towers and very tall multistoried building towers. Several failures of structures have occurred in India due to wind. The IS 875 Part-3 deals with wind loads on different types of structures. In the present work, the Gust Effectiveness Factor Method is used, which is more realistic particularly for computing the wind loads on flexible tall slender structures and tall building towers. In this paper frames of different heights are anlaysed and studied

Meeting with the Green Urban Planner: A Conversation Between Ken Yeang and Steffen Lehmann on Eco-Masterplanning for Green Cities

Abstract Malaysian architect Dr. Ken Yeang is an architect-planner and is frequently described as one of the foremost eco-designers, theoreticians, and thinkers in the field of green design. He has been described as one of the world's leading advocates in ecological and passive low-energy design. He has designed over one hundred projects, and his theory of “bio-climatic” towers has had an impact around the world, fusing high-tech with organic principles. He was born in Penang, Malaysia, in 1948, and was educated in Penang, the United States, and at the Architectural Association in London. He received his doctorate in Architecture from Cambridge University in 1974. He is the author of a number of books on the topic of ecological planning and high-rise design (e.g., The Skyscraper: Bio-climatically Considered, 1996; Eco-Masterplanning, 2009). According to Yeang, the “bioclimatic” high-rise tower is a low-energy tower that is based on bioclimatic design principles and designed as a vertical urban design typo...

Nicholas Dagen Bloom . Public Housing That Worked: New York in the Twentieth Century . Philadelphia : University of Pennsylvania Press . 2008 . Pp. viii, 354. $39.95.

Nicolas Dagen Bloom's rigorous, comprehensive, and fluidly written history of the New York City Housing Authority (NYCHA) adds to an impressive new scholarship that is reassessing much of the conventional wisdom about American public policy and metropolitan development since the New Deal. More specifically, it is an important addition to an exciting list of new histories of the U.S. experiment with public housing. Here Bloom focuses little on tenants and their efforts to secure resources, sustain their communities, and negotiate often hazardous conditions—a hallmark of the best recent ethnographic studies and oral histories; instead he details the motives and performance of the officials, planners, and management staffers who built and literally maintained the city's public housing infrastructure. The result is a story that will no doubt be unfamiliar to many readers but is essential to understanding the history of metropolitan politics and equity in the United States. By the 1960s, simply managing New York City's public housing was no small task: the NYCHA was responsible for 2,600 high-rise towers that were home to 400,000 residents, representing a considerable percentage of the nation's public housing stock. Bloom attributes the authority's enduring “success”—which he contrasts repeatedly with the “failures” of other municipal housing authorities—to its commitment to good management practices. The measure of that success? “[I]ts projects were better built, the tenants more carefully selected, and the buildings better managed than those in other cities” (p. 109).

Safety and serviceability assessment for high-rise tower crane to turbulent winds

Tower cranes are commonly used facilities for the construction of high-rise structures. To ensure their workability, it is very important to analyze their response and evaluate their condition under extreme conditions. This paper proposes a general scheme for safety and serviceability assessment of high-rise tower crane to turbulent winds based on time domain buffeting response analysis. Spatially correlated wind velocity field at the location of the tower crane was first simulated using an algorithm for generating the time domain samples of a stationary, multivariate stochastic process according to some prescribed spectral density matrix. The buffeting forces applied to the structure were computed according to the above-simulated wind velocity fluctuations and the lift, drag, and moment coefficients obtained from a CFD computation. Those spatially correlated loads were then fed into a well calibrated finite element model and the nonlinear time history analysis was conducted to compute structural buffeting response. Compared with structural onsite response measurement, the computed response using the proposed method has good precision. The proposed method is then adopted for analyzing the buffeting response of an in-use tower crane under the design wind speed and the maximum operational wind speed for safety and serviceability assessment.

Living Modern in Mid-Century Houston

Philip Johnson's house, designed for wealthy art patrons and social activists John and Dominique de Menil in 1948, Houston, introduced the culturally conservative city to the modern aesthetic of the international style. It stimulated a generation of mid-century Houston architects who promulgated the ideas of Johnson's mentor, Mies van der Rohe. It also initiated a productive relationship between the architect and Houston where Johnson's design interests evolved from the international style to the figural high-rise towers and the near-kitsch historicist inspiration at the University of Houston. Stern and Bucek Architects' recent conservation project reflects on the role of the house, its owners, and its architect in a city's cultural evolution.

Stochastic optimum design of linear tuned mass dampers for seismic protection of high towers

This work deals with the design optimization of tuned mass damper (TMD) devices used for mitigating vibrations in high-rise towers subjected to seismic accelerations. A stochastic approach is developed and the excitation is represented by a stationary filtered stochastic process. The effectiveness of the vibration control strategy is evaluated by expressing the objective function as the reduction factor of the structural response in terms of displacement and absolute acceleration. The mechanical characteristics of the tuned mass damper represent the design variables. Analyses of sensitivities are carried out by varying the input and structural parameters in order to assess the efficiency of the TMD strategy. Variations between two different criteria are also evaluated.

Microclimatic modeling of the urban thermal environment of Singapore to mitigate urban heat island

This study investigates the urban heat island effect in Singapore and examines the key factors causing this effect. The possibilities of improving heat extraction rate by optimizing air flow in selected hot spots were explored. The effect of building geometry, façade materials and the location of air-conditioning condensers on the outdoor air temperature was explored using computational fluid dynamics (CFD) simulations. It was found that at very low wind speeds, the effect of façade materials and their colours was very significant and the temperature at the middle of a narrow canyon increased up to 2.5 °C with the façade material having lower albedo. It was also found that strategically placing a few high-rise towers will enhance the air flow inside the canyon thereby reducing the air temperature. Adopting an optimum H/ W ratio for the canyons increased the velocity by up to 35% and reduced the corresponding temperature by up to 0.7 °C.

Optimizing Material Hoisting Operations and Storage Cells in Single Multi-storey Tower Block Construction by Genetic Algorithm

During construction, materials have to be stored properly and transported within a site area or even different storeys in a high-rise structure. The total costs for storage and transportation are prime concerns. Optimizing material storage locations so as to pay the least transportation costs induced during the project period is a typical construction management problem. In this paper, a genetic algorithm (GA) approach to optimize the vertical hoisting and storage layout for a high-rise multi-storey tower building in confined sites is studied. Costs include the storage and distribution costs which are calculated in terms of vertical transportation, horizontal movements and then vertical distribution expenses. The sum of these costs is set as the objective function for optimization. Since it is a typical multiple-level warehouse layout and distribution problem, which is NP-hard in nature, an effective assignment system with GA approach is applied. An example of 10 types of materials to be stored and distributed in a 30-storey building is used as a numerical example to illustrate the model development. The results also demonstrate the effectiveness of applying the GA in minimizing the total transportation costs that verify the practical application of the proposed approach.

STUDY ON FORMULATION OF ENVIRONMENTAL RECOGNITION OF SUPER HIGH-RISE HOUSING RESIDENTS

This paper discusses the appropriate design for super high-rise housing. The population of Tokyo, which had been decreasing, began increasing again in 1997. High-rise and super high-rise housing, which allow people to live in urbanized areas, are some of the factors behind this population growth. Super highrise housing is now a mainstream concept of current housing projects. However, for the people that live in them, super high-rise housing is a new living environment. As residences, these living environments are cross-sectional rather than planar in design. Creating these residential spaces requires a design technique incorporating a multiplicity of layers on the premises, as well as input from the prospective residents. The research was conducted at Ohkawabata River City 21.We produced and analyzed cognitive area maps with reference to the questionnaire survey regarding residents recognition of local community. We analyzed the factors in the variation of environmental perception with the multivariate analysis. The attributions of environmental cognition and life territory were determined, particularly those regarding the floors of residents of super high-rise Towers, and discussed the formation of environmental perception which is attributable to displacement floor group.This provides the appropriate attribution of the data for the design technique.

‘Money, stress, jobs’: Residents’ perceptions of health-impairing factors in ‘poor’ neighbourhoods

While the spatial distribution of health and disease is largely associated with individual-level indicators, neighbourhood-level factors appear to exert some independent and mediating influence on health-related processes. This study, conducted in four socio-economically disadvantaged sites in Australia and part of a larger project, analysed residents’ perceptions of neighbourhood factors that influence health. Responses identified four key categories of issues that varied across neighbourhood settings. Residents of high-rise towers were more likely than other residents to nominate proximal aspects of the neighbourhood as having a perceived negative influence on health. The findings support other research that suggests that local physical and social environments influence health via psychosocial processes.

Study on Environmental Recognition of Super High-rise Housing Residents

abstractThis paper discusses the appropriate design for super high-rise housing. The population of Tokyo, which had been decreasing, began increasing again in 1997. High-rise and super high-rise housing, which allow people to live in urbanized areas, are some of the factors behind this population growth. Super high-rise housing is a new living environment, one that is cross-sectional rather than planar. Creating these residential spaces requires a design technique incorporating a multiplicity of layers on the premises, as well as input from the prospective residents. This paper describes one part of the design technique for super high-rise housing. The research was conducted at Ohkawabata River City 21, a model of super high-rise urban housing. The research included a questionnaire, aggregative analysis theory, and aggregate curve. From the above research, the attributions of environmental cognition and life territory were determined, particularly those regarding the floors of residents of super high rise towers. This paper provides the appropriate attribution of the data for the design technique.