Wyniki wyszukiwania - BazTech

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Post occupancy evaluation of adaptively reused buildings: case study of an office building in Saudi Arabia

Hamida Mohammad B., Hassanain Mohammad A.

Architecture Civil Engineering Environment

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2020

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Vol. 13, no. 1

29--40

EN

Adaptive reuse of buildings is the practice of converting the use of an originally designed built-environment to suit a new use. This conversion process has a direct bearing on the performance of the building, and the satisfaction of the users with the conditions of the converted built-environment. This paper presents the findings of a post occupancy evaluation (POE) of an adaptively reused student housing facility to an office building, as a case study. The POE was conducted to investigate the consequences of the conversion process on the technical and functional elements of performance of the adapted building. A review of literature was performed to identify the technical and functional elements of performance pertaining to the new use of the building, along with their recommended performance criteria in codes and standards. The study employed multiple data collection methods, including a walkthrough tour to develop insights about the performance of the building elements; interviews to confirm the validity of the identified technical and functional performance elements, and initiate discussion with the users based on the findings of the walkthrough tour; and a user satisfaction survey to obtain the users’ feedback on the performance of the building. The findings of the study resulted in developing a series of recommendations to improve the performance of the case study building. The paper serves to guide design professionals involved in the planning and design of adaptive reuse projects, and facilities managers in charge of the daily operations of adaptively reused buildings.

2

Odporność ogniowa konstrukcji dachowych

Sulik Paweł, Roszkowski Paweł

Izolacje

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2019

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R. 24, nr 1

58--64

PL

W artykule wymieniono przyczyny powstawania pożarów przekryć i konstrukcji dachowych. Przedstawiono wymagania dotyczące bezpieczeństwa pożarowego dachów. Podano klasy reakcji na ogień wyrobów budowlanych, a także kryteria skuteczności działania dachów z uwagi na warunki pożarowe.

EN

The article lists the causes of emergence of fires of roof coverings and structures. Requirements were presented concerning the fire safety of roofs. Discussed are the fire reaction classes of construction materials as well as the criteria of efficiency of operation of roods due to fire conditions.

3

Thresholding techniques and their performance evaluation for weld defect detection in radiographic testing

Nacereddine N., Hamami L., Ziou D.

Machine Graphics and Vision

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2006

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Vol. 15, No. 3/4

557-566

EN

In non-destructive testing with radiography, a perfect knowledge of the weld defect shape is an essential step to appreciate the quality of the weld and make decision on its acceptance or rejection. Because of the complex nature of the considered images, and in order that the detected defect region represent the real defect as accurately as possible, the choice of the thresholding methods must be made judiciously. In this paper, performance criteria are used to conduct a comparative study of the thresholding methods based on the gray level histogram, the 2D histogram and the locally adaptive approach to weld defect detection in radiographic images.

4

Multi criteria optimum design of manipulators

Ceccarelli M., Carbone G., Ottaviano E.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2005

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Vol. 53, nr 1

9-18

EN

A suitable use of software packages for optimization problems can give the possibility to formulate design problems of robotic mechanical systems by taking into account the several aspects and behaviours for optimum solutions both in design and operation. However, an important issue that can be even critical to obtain practical solutions can be recognized in a proper identification and formulation of criteria for optimability purposes and numerical convergence feasibility. In this paper, we have reported experiences that have been developed at LARM in Cassino by referring to the abovementioned issues of determining a design procedure for manipulators both of serial and parallel architectures. The optimality criteria are focused on the well-recognized main aspects of workspace, singularity, and stiffness. Computational aspects are discussed to ensure numerical convergence to solutions that can be also of practical applications. In particular, optimality . criteria and computational aspects have been elaborated by taking into account the peculiarity and constraint of each other. The general concepts and formulations are illustrated by referring to specific numerical examples with satisfactory results.