Current Issue : April - June Volume : 2020 Issue Number : 2 Articles : 5 Articles
This article focuses on the comparison between the Spanish architects de La Hoz (Madrid,\n1924) and José MarÃa GarcÃa de Paredes (Seville, 1924) projects for â??ultra-cheapâ?? housing in Cordoba,\nhow it evolved from a British patent named Ctesiphon, and the study of some of existing buildings\nerected following this construction system. The aim of this article is to stablish the evolution of the\nsystem from the original patent into a new possibility for low-income social housing. This system\nwas used to erect new developments in the 1950s that would relocate people living in huts during the\ndictatorship era in Spain, thus new â??technological hutsâ? were proposed and erected. The research\nprocess includes an analysis of the documents and literature available of the patent and the projects\nthemselves, and in situ tests (infrared thermography and samples extraction) will allow to establish\nthe relation between its original inventor, the dissemination of his works in publications from that\nera, and the Spanish company that subsequently, as a concession of the original patent, introduced\nthat system in Spanish architecture. Analysis of the original patent document allows to study the\nprimitive system as it was invented and for what uses it was conceived. Thus, such a methodology\nsupports an establishment of the technical innovations achieved in order to adapt the system to the\nAndalusian environment at that time and its use for housing....
Auditorium buildings are special structures needing much attention for it to\nfunction properly. Generally, consideration should be given to seating, sightlines,\nand acoustic requirements. In addition, the design should ensure performer-\naudience intimacy as much as possible. The focus of the study is to\nreview design strategies for auditoria on the Kwame Nkrumah University of\nScience and Technology, Kumasi campus towards compliance and to develop\nsolutions for improvements that will enhance the performance of 4 selected\nauditorium facilities. Case study, observation and measurements were the\nmain strategies used. The results revealed that the approaches involved in\nauditorium designs are shape, volume, surface boundary dimensions and\nmaterials, stage, seating, foyers and sightlines. These parameters are grouped\nunder acoustical, functional and programmatic parameters. Reverberation\ntime calculated was high which indicated speech intelligibility problems,\nhence, improvement efforts were made to change the floor materials from\npolished tiles to carpeted floors, and high absorption wall claddings. In the\nprocess, the reverberation time was reduced from 1.47 - 2.23 to 0.84 - 1.73 for\nthe studied buildings. The study recommends strict adherence to standards\nand guidelines, and for designers to have a keen focus on designing these special\nbuildings. A renovation effort when undertaken, will lead to improvements\nin the performance of the selected buildings....
Under the background of community construction, green community has\nbecome a concentrated embodiment of human pursuit of high-quality life.\nGreen community plays an important role in saving energy, improving living\nenvironment and promoting sustainable development. By establishing the\nevaluation index system of green community, this paper attempts to make a\nmore comprehensive evaluation from the aspects of resources, environment\nand management mode of green community, to effectively evaluate the development\nlevel of green community, to provide reference for government\ndepartments to manage and develop the development of decision-making\ngreen community, to provide guidance for planning and designing green\ncommunity environment, and to provide direction for the construction of\ngreen sustainable development. At the same time, it is beneficial to the promotion\nand development of green environmental protection technology....
The durability of cement-based structures majorly depends on their resistivity to the aggressive media in the construction\nenvironment. The most aggressive ions commonly encountered in construction environment are chloride...............................
The dry-separation method is an alternative to the wet-preparation in the\ncurrent European Standard for the determination of particle size distributions\nby the sieving of soils. Due to the risk of error, dry-separation is cautioned\nagainst in the standard; however, there is no additional guidance as to when it\nis unsuitable nor for the magnitude of error that it may introduce. This study\ninvestigates the dry-separation method as an alternative by comparing with\nthe conventional method of Wet-preparation in terms of particle-size distributions\nof eight cohesionless sand-gravel soils with varying amounts of\nnonplastic fines. The findings indicate a gradually increasing sieving error\nfor fractions at minus 0.5 mm with the amount of fines in the soil, and depending\non the fines content of the soil, dry-separation introduced errors\nupwards of 45% in silt-sand-gravel soils. An empirical best-fit formula is\nproposed for the estimation of the error using the dry-preparation method\non this type of soil. Furthermore, to avoid sieving errors, the results suggest\nthat the dry-separation method should not be used for silt-sand-gravel soils\nexceeding 2% silt size fractions....
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