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1 – 10 of 82
Article
Publication date: 7 March 2016

Yasser Sharifi and Hamed Aviz

Nowadays, with the expansion of terrorist operations around the world and also the dangers of accidental explosions, the need to design structures resistant to this phenomenon for…

Abstract

Purpose

Nowadays, with the expansion of terrorist operations around the world and also the dangers of accidental explosions, the need to design structures resistant to this phenomenon for the protection and safety of its citizens is inevitable. Tall buildings are one of the most important issues because of which those behavior should be investigated against the blast loading.

Design/methodology/approach

In this paper, the authors used a simple method for investigating the dynamic response of tall buildings with the combined system of framed tube, shear core and outrigger-belt truss located at different heights of the building’s that were subjected to blast loading. This proposed model is based on the development of a continuum model and the ruling equations that have been obtained using the energy principle predict the whole structure idealized as a shear and flexural cantilever beam with rotational springs at the belt truss location.

Findings

The mathematical procedure shows a good understanding of the structural behavior and is suitable for a quick evaluation during the preliminary design stage, which requires less time. Moreover, it was concluded that the present blast load idealization can be used to reasonably assess the response of tall buildings subjected to blast load.

Originality/value

The comparative analysis in this paper could give other engineers a simple analysis method for the preliminary analysis and design of tall building analysis. Numerical example is given to illustrate the ease of application and the accuracy of the suggested model.

Article
Publication date: 1 November 1969

The Secretary of State after consultation with organisations and associations of organisations appearing to be representative respectively of substantial numbers of employers…

Abstract

The Secretary of State after consultation with organisations and associations of organisations appearing to be representative respectively of substantial numbers of employers engaging in the activities hereinafter mentioned and of substantial numbers of persons employed in those activities and in exercise of her powers under section 1 of, and paragraphs 1 and 7 of the Schedule to, the Industrial Training Act 1964 (hereinafter referred to as “the Act”) and of all other powers enabling her in that behalf hereby makes the following Order:—

Details

Managerial Law, vol. 7 no. 2
Type: Research Article
ISSN: 0309-0558

Open Access
Article
Publication date: 12 April 2022

Hüseyin Emre Ilgın, Markku Karjalainen and Sofie Pelsmakers

This study examined data from 13 international tall residential timber building case studies to increase our understanding of the emerging global trends.

3005

Abstract

Purpose

This study examined data from 13 international tall residential timber building case studies to increase our understanding of the emerging global trends.

Design/methodology/approach

Data were collected through literature surveys and case studies to examine the architectural, structural and constructional points of view to contribute to knowledge about the increasing high-rise timber constructions globally.

Findings

The main findings of this study indicated that: (1) central cores were the most preferred type 10 of core arrangements; (2) frequent use of prismatic forms with rectilinear plans and regular extrusions were identified; (3) the floor-to-floor heights range between 2.81 and 3.30 m with an average of 3 m; (4) the dominance of massive timber use over hybrid construction was observed; (5) the most used structural system was the shear wall system; (6) generally, fire resistance in primary and secondary structural elements exceeded the minimum values specified in the building codes; (7) the reference sound insulation values used for airborne and impact sounds had an average of 50 and 56 dB, respectively.

Originality/value

There is no study in the literature that comprehensively examines the main architectural and structural design considerations of contemporary tall residential timber buildings.

Details

International Journal of Building Pathology and Adaptation, vol. 41 no. 6
Type: Research Article
ISSN: 2398-4708

Keywords

Article
Publication date: 1 September 1970

The Secretary of State after approving proposals submitted by the Road Transport Industry Training Board for the imposition of a further levy on employers in the road transport…

Abstract

The Secretary of State after approving proposals submitted by the Road Transport Industry Training Board for the imposition of a further levy on employers in the road transport industry and in exercise of his powers under section 4 of the Industrial Training Act 1964 and of all other powers enabling him in that behalf hereby makes the following Order:—

Details

Managerial Law, vol. 8 no. 6
Type: Research Article
ISSN: 0309-0558

Article
Publication date: 1 June 1972

The Secretary of State after consultation with the Footwear, Leather and Fur Skin Industry Training Board and with organisations and associations of organisations appearing to be…

Abstract

The Secretary of State after consultation with the Footwear, Leather and Fur Skin Industry Training Board and with organisations and associations of organisations appearing to be representative respectively of substantial numbers of employers engaging in the activities hereinafter mentioned and of substantial numbers of persons employed in those activities and in exercise of his powers under section 9 of the Industrial Training Act 1964 and of all other powers enabling him in that behalf hereby makes the following Order;—

Details

Managerial Law, vol. 12 no. 3
Type: Research Article
ISSN: 0309-0558

Article
Publication date: 15 June 2022

Sophia Harris, Gianna Ryan, Michael Marino and Koorosh Gharehbaghi

Green building, which is also commonly referred to as sustainable building, is focused on the processes implemented that are environmentally efficient and responsible throughout…

Abstract

Purpose

Green building, which is also commonly referred to as sustainable building, is focused on the processes implemented that are environmentally efficient and responsible throughout the life cycle of the building. This accounts for the time of manufacturing of materials, to the erection of these materials, on-site, to the operation of the building and how these efficient materials assist in the operation and running of the building daily, all the way through to the demolition. There are many aspects of the building process that can be switched to green. For the construction industry, the change to green design although the complex is nonetheless necessary. This study thus aims to focus on supporting the knowledge surrounding green buildings in high-rise construction. This research will undertake a comparative analysis and review of one case study in Melbourne, Australia.

Design/methodology/approach

The direction of this study commences with an introductory section on what it means to build green. This section is further brokendown to evaluate what factors are involved in constructing a green building. The work then shifts towards the green building from a sustainability point of view, touching base with the level of awareness that is surrounding the green building and the level of ignorance that goes with this. Furthermore, the research includes specific pointers which are strategically placed to directly grab the attention of those who lack knowledge in the area of green building by offering a brief, yet in-depth, discussion of possible materials that can be incorporated in the construction phase and will, in turn, create for a more efficient building. As such, life cycle energy is then introduced and calculations are carried out. These calculations offer a more logical form of validation to the previous points and issues raised, with the hope to achieve a more in-depth grasp of the process involved with green building.

Findings

Through comprehensive research, this paper has found the following outcomes. (1) A detailed insight into the contributing factors to green building in high-rise construction and the construction industry in general. (2) An increased understanding of the current status of green buildings within the construction industry. (3) The creation of an effective research methodology plan to implement throughout this research. The appropriate steps and measures, that were required to deliver a successful research piece, included all relevant information. (4) The level of involvement required when calculating the energy levels, including how to perform these calculations when given the correct data, and what these calculations mean concerning what they are defining.

Originality/value

The potential contribution that can be gained from this research is the awareness that is raised in the research and development of green buildings in high-rise construction. This can be achieved by the use of certain materials such as new energy-efficient building materials, recycled materials, etc. Through the incorporation of certain green building methods, an opportunity for cost savings becomes an incentive for the client and builder as the chance for a larger profit margin becomes readily available. In addition to these issues that are anticipated for the potential contribution through this research, the sustainability aspects are also expected to prevail as the construction industry is likely to evolve with changing standards and expectations due to the publicity high-rise buildings achieve, it is more than likely that this research discussion will be adopted willingly and positively promoted for all those involved within the construction industry to get involved. The intention remains that this research paper will be able to contribute a new way of thinking and a new approach to the way of building in the 21st century. As this would be the ideal outcome, the aim remains to portray and deliver information surrounding the views that remain for and against the implementation of green buildings in high-rise construction.

Details

Technological Sustainability, vol. 2 no. 1
Type: Research Article
ISSN: 2754-1312

Keywords

Article
Publication date: 6 March 2017

HongJun Son, Jonghwan Park, Heecheul Kim, Young Hak Lee and Dae-Jin Kim

This paper aims to propose a generalized finite element technique that can accurately approximate the solution of the flexural-shear cantilever model of wall-frame structures…

Abstract

Purpose

This paper aims to propose a generalized finite element technique that can accurately approximate the solution of the flexural-shear cantilever model of wall-frame structures proposed by Heidebrecht and Stafford Smith.

Design/methodology/approach

This approach adopts scaled monomials as enrichment functions, and they are highly effective in accurately capturing the solution of the problem, as it consists of smooth functions such as polynomials, hyperbolic and trigonometric functions. Several numerical experiments are performed on the static and modal analyses of the flexural-shear cantilever wall-frame structures using the proposed generalized finite element method (GFEM), and their accuracies are compared with those obtained using the standard finite element method.

Findings

The proposed GFEM is able to achieve theoretical convergence rates of the static and modal analyses, which are, in principle, identical to those of the standard FEM, for various polynomial orders of its shape functions such as quadratic, cubic and quartic orders. The proposed GFEM with quartic enrichment functions can provide more accurate solutions than the standard FEM, and thus can be effectively used at the initial design stage of high-rise wall-frame structures.

Originality/value

This work is the first paper where the GFEM is applied to the analysis of high-rise wall-frame structures, and the developed technique can be used as a good analysis tool at the initial design stage.

Details

Engineering Computations, vol. 34 no. 1
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 17 February 2022

Md. Habibur Rahman Sobuz, Md. Montaseer Meraz, Ayan Saha, Abu Sayed Mohammad Akid, Noor Md. Sadiqul Hasan, Mizanoor Rahman and Md. Abu Safayet

This study aims to present the variations of optimal seismic control of reinforced cement concrete (RCC) structure using different structural systems. Different third-dimensional…

Abstract

Purpose

This study aims to present the variations of optimal seismic control of reinforced cement concrete (RCC) structure using different structural systems. Different third-dimensional mathematical models are used to examine the responses of multistory flexibly connected frames subjected to earthquake excitations.

Design/methodology/approach

This paper examined a G + 50 multi-storied high-rise structure, which is analyzed using different combinations of moment resistant frames, shear walls, seismic outrigger systems and seismic dampers to observe the effectiveness during ground motion against soft soil conditions. The damping coefficients of added dampers, providing both upper and lower levels are taken into consideration. A finite element modeling and analysis is generated. Then the nature of the structure exposed to ground motion is captured with response spectrum analysis, using BNBC-2020 for four different seismic zones in Bangladesh.

Findings

The response of the structure is investigated according to the amplitude of the displacements, drifts, base shear, stiffness and torsion. The numerical results indicate that adding dampers at the base level can be the most effective against seismic control. However, placing an outrigger bracing system at the middle and top end with shear wall can be the most effective for controlling displacements and drifts.

Originality/value

The response of high-rise structures to seismic forces in Bangladesh’s soft soil conditions is examined at various levels in this study. This study is an original research which contributes to the knowledge to build earthquake resisting high-rises in Bangladesh.

Details

Journal of Engineering, Design and Technology , vol. 22 no. 3
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 1 January 2013

A. Kaveh, H. Rahami, S.R. Mirghaderi and M. Ardalan Asl

In the analysis of some near‐regular structures one can solve the regular part independently and then superimpose the effect of the additional part. For such models, the matrices…

Abstract

Purpose

In the analysis of some near‐regular structures one can solve the regular part independently and then superimpose the effect of the additional part. For such models, the matrices corresponding to regular part have canonical forms and their eigensolution or inversion can easily be performed. The effect of member changing the regular to a near‐regular structure can then be added. The purpose of this paper is to analyze near‐regular structures using the force method.

Design/methodology/approach

The paper uses the force method, and instead of selecting a statically determinate basic structure (standard method), the paper employs the regular part of the structure as the basic structure.

Findings

A new algebraic method is introduced for the force method of analysis for efficient analysis of large near‐regular structures.

Originality/value

In this paper, the force method is used, however, instead of selecting a statically determinate basic structure, the regular part of the structure is employed as the basic structure. Those additional elements are considered as redundant elements. This method is applied to truss and frame structures. In the present approach it is possible to have missing elements instead of additional elements.

Details

Engineering Computations, vol. 30 no. 1
Type: Research Article
ISSN: 0264-4401

Keywords

Article
Publication date: 1 March 1990

James T. Luxhoj and Gene A. Giacomelli

The development of labour standards for the single truss tomatoproduction system is examined. Both time study and predetermined timesystems, such as the Element Times for…

Abstract

The development of labour standards for the single truss tomato production system is examined. Both time study and predetermined time systems, such as the Element Times for Agriculture (ETA) tables and the Maynard Operation Sequence Technique (MOST) tables, are used to determine labour standards for the operations of pruning and harvesting in a single truss tomato production system. The hypothesis is that a predetermined time system could be used to establish greenhouse labour standards, and thus replace the tedious and costly process of direct time study. Such a work measurement system would enable the setting of job standards quickly and accurately. Standardised work models will facilitate cost control of labour operations, and provide data for evaluation of labour costs within future greenhouse system designs. The data indicate that, although the pre‐determined time values varied from measured time study by around 6 per cent to over 23 per cent for pruning, the variation for harvesting ranged approximately from 3 per cent to 7 per cent. The combined results suggest that predetermined time systems can be used effectively to establish greenhouse labour standards for short cycle tasks without the loss of significant accuracy when using an absolute scale.

Details

International Journal of Operations & Production Management, vol. 10 no. 3
Type: Research Article
ISSN: 0144-3577

Keywords

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