Discover the Latest Journals in Architecture and Architectonics

Architecture is both the process and product of planning, designing, and constructing a building or structure, while architectonics is the scientific study of architecture itself. Architectural works are often considered important cultural symbols and works of art, and we often identify past civilizations with their architectural heritage.

Architecture and Architectonics

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Pollack Periodica
Authors:
Orest Voznyak
,
Edyta Dudkiewicz
,
Nadiia Spodyniuk
,
Oleksandr Dovbush
,
Iryna Sukholova
,
Olena Savchenko
, and
Mariana Kasynets

Abstract

The immediate vicinity of buildings of different floors causes damages of the smoke and ventilation channels work of the low-rise buildings. This is dangerous for the resident's health and lives. To determine the impact of high-rise buildings on the operation of air channels of a nearby two-story building, experimental research has been carried out in a wind tunnel. Charts and analytical formulas have been designed for determining the buildings aerodynamic coefficients depending on wind directions and the channels height. An increase of the channel height results in an increase in static rarefaction in smoke and ventilation channels. Increasing rarefaction increases the efficiency of the natural ventilation system and ensures the residents health and life.

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Abstract

Springs are the most basic mechanical elements used in transmission mechanisms. The rapid development of the computer and cellular industry has encouraged spring manufacturers to develop the industry to produce very small springs. Most computer-aided design programs for mechanical parts provide the possibility of designing these parts, as these programs include different types of decisions. All these decisions require coordinates for geometric data as well as metadata. The paper aims to develop software programs to design and analyze springs as one of the most significant mechanical elements used. This paper aims to develop a design software of a helical spring system, where this software is built using a computer program in the language of Visual Basic Version 5. When the user enters data into the system, the system will perform a series of complex calculations in the system, then provide a detailed report on all the engineering dimensions of the spring, and test its efficiency. The output of the software shows the required spring wire parameters. The software was tested with test data from the open literature, and the required wire spring parameters were obtained.

Open access

Effect of Bonding Type on the Failure of Reinforced Concrete Beam Strengthened with In-Situ High Performance Fibre Reinforced Concrete Layer

A kapcsolat típusának hatása helyszínen öntött szálerősítésű, nagyszilárdságú betonhabarccsal megerősített vasbeton gerenda tönkremeneteli módjára

Építés - Építészettudomány
Authors:
Cecília Nemessányi
and
Anikó Pluzsik

High performance fibre reinforced concrete (HPFRC) materials with tensile hardening behaviour can effectively be used for strengthening reinforced concrete beams. A perfect bond between the original and the reinforcing layer cannot be formed, the load-bearing capacity and ductility of the strengthened beam can significantly be affected by the interfacial bond strength between the contacting surfaces. In this paper, beam retrofitting with cast in-situ strengthening type is examined. The purpose of this experimental study is to investigate the impact of the different bond types on the load-bearing capacity, ductility, and failure mode of the strengthened beams in the case of cast in-situ strengthening. Twenty-four beam tests were performed with untreated and rough surfaced beams, with or without connecting elements. The effect of the bond type proved to be significant regarding the failure mode in the case of compression side strengthening, stronger bond resulted in higher load bearing capacity and ductility, too. When tensile side reinforcement was investigated no average increment was experienced in the maximal force and ductility due to the stronger bond. Based on the results, it can be concluded that the generally applied analytical models that assume perfect connection may lead to exaggerated results in the case of a compressed side HPC-strengthened beam. Therefore, it is necessary to develop a model that considers the effect of the imperfect bond.

Open access

Abstract

Numerous studies have proven that digital development positively affects economic growth. This study aims to confirm or refute the positive impact of digital evolution on economic growth by applying the dimensions of the International Digital Economy and Society Index (I-DESI). The analysis refers to the period 2015–2020 of the European Union member states. The study's novelty is that the I-DESI index has yet to be used in research to investigate the relationship between the digital transition and GDP production. The present study, therefore, goes one step further than the previous typical DESI-GDP models. The research uses Pearson correlation and F-statistic analysis to show the relationship between the variables. The study confirms that digital development has positively impacted the economic growth of EU member states. This result was confirmed by both Pearson and Spearman correlation. However, the results are ambivalent. The empirical results indicate that the more digitally developed member countries had a higher GDP per capita. However, the positive effect is different. The results confirm that the development of digitalization and GDP increased more dynamically in the more digitally developed EU member states than in the less developed member states. Therefore, an increase in the backwardness of the less developed member countries and not a catch-up can be observed in the period under review.

Open access

A miskolci Avasi késő gótikus templom nyugati rózsaablaka

The Western Rose Window of the Late Gothic Avas Church in Miskolc

Építés - Építészettudomány
Author:
Éva Lovra

A miskolci Avasi Református Templom [3530 Miskolc, Papszer u. 14. hrsz.: 2405, azonosító: 2926, műemléki törzsszám: 848] nyugati falát egy kis méretű kerek, mérművekkel díszített ablak – rózsaablak – töri át, amit az 1980-as években kibontottak és újrafaragtak. A kőrestaurátori munkákról kevés feljegyzés áll rendelkezésünkre, így az eredeti ablak kőtöredékeinek holléte is ismeretlen volt. A rózsaablak kőtöredékeinek megtalálása, beazonosítása és konzerválása lehetővé tette bemutatását egy, a legutóbbi, 2019-es felújítási munkálataihoz kapcsolódó állandó építészettörténeti kiállításon a templom falain belül. Az esettanulmány a rózsaablak (ismert) történetét mutatja be az első ismert ábrázolásoktól, a Szehlo Ottó-féle téves felmérésen keresztül egészen a jelenkori állapotig; az ablak szerkesztésének elvi menetét, amely kontextusba helyezi a Sztehlo-féle vázlatokat és válaszol az ábrázolásokkal kapcsolatban felmerült kérdésekre; foglalkozik a kőanyaggal és a beépítési móddal, amelynek kiemelt jelentősége a kőrestaurálás folyamatában és a kiállításánál volt, hiszen a kőszerkezet állapota kritikus volt, egyes részei mozdításra törnek, kiállításához a szilárdítása és kezelése elengedhetetlen volt.

Open access
Pollack Periodica
Authors:
Bakigari Udayasree
,
Avuthu Narender Reddy
,
Yadav Suvidha
,
Prathik Kulkarni
,
Cholkar Arvind Kumar
, and
Bodevenkata Kavyatheja

Abstract

This study highlights the effectiveness of the response surface method in predicting the properties of hardened concrete containing spent foundry sand and manufactured-sand. In current research, different mix proportions are prepared with spent foundry sand and manufactured-sand as partial replacements for fine aggregate. The workability, strength, and durability studies are conducted on all concrete mixes. The test results confirm that the inclusion of 20% of spent foundry sand is optimum for enhancing the strength and durability. Also, the inclusion of 20% of spent foundry sand in manufactured-sand concrete also possesses optimum results in strength and durability. Further, the response surface method has been employed to develop a model for compressive strength prediction. The R-squared and residual sum of squares of error for the compressive strength model were 0.9863 and 2.345, which confirms the goodness of the fit.

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Abstract

Local scour poses a grave threat to bridge foundations, potentially causing catastrophic collapses. This study uses FLOW-3D with the Reynolds-Averaged Navier-Stokes model to analyze pier scour and dune formation under bridges. It focuses on submerged debris shapes near the water's surface. Results closely match experiments when specific conditions are met. The study introduces an innovative approach to debris impact assessment. Instead of traditional methods, it proposes a novel equation accounting for debris's effective area and elevation. This enhances reliability by over 20%, improving scour depth assessment in debris-laden scenarios. This advances the understanding of debris's role in local scour, benefiting bridge design and management practices.

Open access

Abstract

Present paper shows the different types of tensor product model based linear matrix inequality controller design and feasibility analysis of two degrees of freedom aeroelastic wing section model. The tensor product models are based on reducing or removing the nonlinear behavior of the system and weighting functions. The linear matrix inequality based method results globally asymptotically stable system. The goal of the paper is to examine that selecting and varying the transformation space influences the feasibility of the linear matrix inequality based controller. The paper gives a comparison between the different tensor product models in terms of controller performance. The linear matrix inequality gives feasible solution for the controller design if the transformation space is selected adequately.

Open access

Endeavor for Self-Realization

The Story of Three Czech Professors of Architecture at the Slovak Technical University

Törekvés az önmegvalósításra

Három cseh építészprofesszor története a Szlovák Műszaki Egyetemen
Építés - Építészettudomány
Authors:
Jana Pohaničová
,
Matúš Dulla
, and
Nina Bartošová

This paper focuses on the reactions of three professors and architects (Jan E. Koula, Vladimír Karfík, and Alfred Piffl) to how the totalitarian political regime restricted and interfered with creative and academic freedoms in the period starting with the introduction of architectural education at the Slovak University of Technology and ending with the so-called “normalization” period in the former Czechoslovakia. All three of them were already active in interwar Czechoslovakia and thus had rich experience with working under democratic conditions, and their early work was influenced by the interwar avant-garde movements. After World War II, in part thanks to their pioneering work at the Slovak University of Technology, they got caught up in the system of the authoritarian socialist state. The central question that this study asks is how the trio dealt with the totalitarian regime, which stood in contrast with the democratic period of interwar Czechoslovakia that formed them as architects, and brought further limits to their work. Based mostly on material from their personal estates and period publications, we reveal how each of them found his own way to deal with the totalitarian regime, and we argue that even its limitations did not make Koula, Karfík, and Piffl abandon their beliefs and creative credos completely.

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