Transition from wood to iron in French theatre structures: A new construction system

2021 ◽  
pp. 669-676
Author(s):  
A.M. Chalvatzi
Author(s):  
José Guillermo Muñoz Montes ◽  
Vicente Ramírez Collado ◽  
José Luis Puchades Valencia ◽  
Joaquín Martín Rodriguez

En el presente artículo se pretende dar a conocer el proceso de investigación sobre materiales cementicios enfocados a la impresión 3D. Un grupo de 4 estudiantes de la Universidad Politécnica de Valencia, 3 Ingenieros de la Edificación y 1 Ingeniero de Electrónica y automatismo Industrial, llevan 3 años investigando y desarrollando tanto un dispositivo de impresión 3D móvil como un material cementicio para ser extrusionado por dicho dispositivo y ser capaz de modelar cualquier tipo de figura con tecnología FDM(ADICIÓN DE CAPAS). El principal objetivo de esta investigación es la aplicación de este nuevo sistema constructivo al sector inmobiliario y construir vviiendas, reduciendo riesgos laborales, costes y material de residuo. Caracterizando nuevas dosificaciones cementicias, conseguimos aumentar su Trabajabilidad y Robustez frente a iclemencias metereológicas que puedan afectar a su reología y comportamiento al momento de su puesta en obra mediante bombeo y extrusión mecánica.***This article intends to give an understanding of the process of research into cement materials, focussed on 3D printing. A group of four students at the Universitat Polit.cnica de Val.ncia – three architectural engineers and one electronic and automotive industrial engineer, spent three years researching and developing both a mobile 3D printing device; and a cement material to be extruded by this device and be capable of modelling any type of figure with FDM technology. The main objective of this research is the application of this new construction system to the house-building and real estate sector; reducing occupational hazards, costs and waste material.


2021 ◽  
Vol 1203 (3) ◽  
pp. 032117
Author(s):  
Hernán Ordoñez ◽  
Pedro Angumba

Abstract The tapial is part of the traditional construction worldwide, which uses environmentally friendly materials of natural origin such as raw earth, wood and water for its manufacture. The construction technique was used for the construction of habitable spaces, which are part of the ancestral construction system of our country; Despite the above, no updated studies on the costs required in the construction process have been identified in Ecuador. This is mainly due to the constant development of new technologies that introduce new construction systems to the market that use industrialized materials for their manufacture. Therefore, this document evaluated and analyzed the unit prices of the items involved in the construction of works using mud as its main component. Field and exploratory research was applied, through the application of surveys to a sample of 97 professionals of Civil Engineering and Architecture in the city of Cuenca, as well as 30 professionals with experience in construction of the indicated construction system. The Unit Price Analysis determined that the average cost of a 140 m2 typical house is $ 46,236.64 with an estimated cost of $ 330.26 per square meter; Similarly, the study determined a maximum cost of $ 53,172.14 USD with a value of $ 379.80 USD per square meter and a minimum value that represents $ 39,301.14 with a cost per square meter of $ 280.72.


Author(s):  
Takashi Nagasaki ◽  
Koichi Banno ◽  
Kazuo Wakasugi ◽  
Ayako Yasaka ◽  
Takemasa Tanimura

The main provisions of the concept of technology of diamond cutting and drilling of building structures are considered. The innovativeness of the technology, its main possibilities and advantages are presented. Carrying out works with the help of this technology in underwater conditions expands its use when constructing and reconstructing hydraulic structure. The use of diamond drilling equipment with motors equipped with an internal combustion engine is considered. Drilling holes with a variable diameter during the reconstruction of the runways of airfields makes it possible to combine the landing mats into a single structure. The ability to cut inside the concrete mass, parallel to the front surface, has no analogues among the methods of concrete treatment. The use of this technology for producing blind openings in the body of concrete without weakening the structure is also unique. Work with precision quality in cutting and diamond drilling of concrete and reinforced concrete was noted by architects and began to be implemented in the manufacture of inter-room and inter-floor openings. Non-destructive approach to the fragmentation of building structures allows them to be reused. The technology of diamond cutting and drilling is located at the junction of new construction, repair, reconstruction of buildings and structures, and dismantling of structures. Attention is paid to the complexity and combinatorial application of diamond technology. Economic efficiency and ecological safety of diamond technology are presented. The main directions of further research for the development of technology are indicated.


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