Architecture and Engineering最新文献_第5页

ANALYSIS OF EFFICIENCY OF THREE-LAYER WALL PANELS WITH A DISCRETE CORE 散芯三层墙板的效率分析

Architecture and Engineering Pub Date : 2022-03-31 DOI: 10.23968/2500-0055-2022-7-1-16-22

V. Karpov, E. Kobelev

引用次数: 0

INTERCHANGEABILITY AND STANDARDIZATION OF THE PARAMETERS OF COMBUSTIBLE GASES WHEN USING HYDROGEN 使用氢气时可燃气体参数的互换性和标准化

Architecture and Engineering Pub Date : 2022-03-31 DOI: 10.23968/2500-0055-2022-7-1-33-45

A. Shkarovskiy, Anatolii Koliienko, V. Turchenko

{"title":"INTERCHANGEABILITY AND STANDARDIZATION OF THE PARAMETERS OF COMBUSTIBLE GASES WHEN USING HYDROGEN","authors":"A. Shkarovskiy, Anatolii Koliienko, V. Turchenko","doi":"10.23968/2500-0055-2022-7-1-33-45","DOIUrl":"https://doi.org/10.23968/2500-0055-2022-7-1-33-45","url":null,"abstract":"Introduction and purpose of the study: The paper presents results of studies aimed to provide a rationale for the possibility of a gradual transition to hydrogen combustion in gas supply to domestic and commercial consumers without changes in the design and operation of burners. For this purpose, we have considered tasks of determining the indicators of interchangeability for natural gas and its mixtures with hydrogen. The main characteristics of combustible gases with various hydrogen content in a mixture have been studied. We have established the impact of the hydrogen content on the heat rate, emissions of harmful substances, as well as light back and flame lift phenomena. We have also analyzed the available interchangeability criteria and their applicability when using natural gas/hydrogen mixtures. The impact of the hydrogen content on the radiation heat transfer in the furnaces of gas equipment is described in the paper for the first time. Methods: The methodology of the paper is based on a critical analysis of available literature data on combustible gases interchangeability as well as theoretical and experimental studies performed by the authors. We have derived dependencies that allow us to determine the possibility of gas equipment transition to the combustion of natural gas/hydrogen mixtures. We have also developed recommendations on the permissible hydrogen content in a natural gas/ hydrogen mixture that would ensure the efficient, safe, and green use of such fuel in domestic and commercial heating units. Results: Scientific findings and practical results of the study make it possible to implement partial gradual costeffective decarbonization in the area of gas fuel utilization as an intermediate stage of transition to more extended hydrogen combustion.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48600883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

EULER’S POWER CALCULATIONS OF “NATURAL FORCES” TO RAISE WATERS WITH PISTON PUMPS 欧拉用活塞泵提高水的“自然力”的功率计算

Architecture and Engineering Pub Date : 2022-03-31 DOI: 10.23968/2500-0055-2022-7-1-03-15

S. Bistafa

{"title":"EULER’S POWER CALCULATIONS OF “NATURAL FORCES” TO RAISE WATERS WITH PISTON PUMPS","authors":"S. Bistafa","doi":"10.23968/2500-0055-2022-7-1-03-15","DOIUrl":"https://doi.org/10.23968/2500-0055-2022-7-1-03-15","url":null,"abstract":"Introduction: In a 1754 publication, Discussion plus particulière de diverses manières d’elever de l’eau par le moyen des pompes avec le plus grand avantage (Very detailed explanation of the different methods of raising water through pumps with the greatest effectiveness), Leonhard Euler (1707–1783) made extensive use of the concept of mechanical power in estimates of the power needed to raise waters with piston pumps, by means of natural forces such as human and horse force, running waters, and windmills. Purpose of the study: We aimed to revisit this publication to show to the modern reader Euler’s pioneering approach in providing rational calculations of the power of natural forces needed to drive different machines to raise waters with piston pumps. Methods: After a brief historical review on the use of natural forces to drive machines and the evolution of the concept of mechanical power, the method employed was the examination and an annotated reproduction of the main formulation using Euler’s original notation and ways of scientific writing of the time. Discussion: We address the evolution of hydropower and wind power, particularly for the generation of electricity, and also show that despite of its much lower attractiveness, there have been some attempts in the use of human and animal power in developing countries, particularly in applications that do not require large and constant amounts of power inputs.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41660344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

METHOD OF CALCULATION FOR WALLS OF VERTICAL SQUARED TIMBER 垂直方木墙的计算方法

Architecture and Engineering Pub Date : 2022-03-31 DOI: 10.23968/2500-0055-2022-7-1-46-55

O. Tretiakova

引用次数: 0

RESEARCH ON MECHANICAL PROPERTIES AND GROUTABILITIES OF GROUTED MORTISE-TENON JOINTS FOR PREFABRICATED STRUCTURES 装配式结构灌浆榫卯节点力学性能及可灌浆性研究

Architecture and Engineering Pub Date : 2022-03-31 DOI: 10.23968/2500-0055-2022-7-1-23-32

Huang Mingli, Shen Qiaofeng, Zhang Zhancheng

{"title":"RESEARCH ON MECHANICAL PROPERTIES AND GROUTABILITIES OF GROUTED MORTISE-TENON JOINTS FOR PREFABRICATED STRUCTURES","authors":"Huang Mingli, Shen Qiaofeng, Zhang Zhancheng","doi":"10.23968/2500-0055-2022-7-1-23-32","DOIUrl":"https://doi.org/10.23968/2500-0055-2022-7-1-23-32","url":null,"abstract":"Introduction: The paper addresses grouted tenon-and-groove joints in the prefabricated structure of Changchun subway station. For the first time, grouting of prefabricated structure joints with organic epoxy grouting material is analyzed. Purpose of the study: We aimed to make sure that an organic epoxy grouting material can be injected into the joints uniformly and in full and conducted its experimental study. To establish the applicability of the epoxy grouting material in the prefabricated structures, we studied the mechanical properties of the epoxy grout and its adhesive properties in relation to concrete. Methods: In the course of the study, we used a set of test equipment and an independently developed method. Results: High-quality grouting can be guaranteed at an injection pressure of 0.4 MPa and a temperature of 5–10°C. The relationship between the slurry flow rate and time was fit according to the experimental data at 5 and 10°C. The optimal quartz powder ratio was determined at the level of 1:0.6–1:0.8, and the optimal quartz powder particle size (D50) was determined at the level of 18–25 μm. The results of the study can provide references for similar projects in the future.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68782775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IMPACT OF SCULPTURES IN LANDSCAPE DESIGN: CASE OF GREATER IQBAL PARK, LAHORE 雕塑在景观设计中的影响:以拉合尔大伊克巴尔公园为例

Architecture and Engineering Pub Date : 2021-12-24 DOI: 10.23968/2500-0055-2021-6-4-14-23

Sadia Farooq, Mohammad Arif Kamal

{"title":"IMPACT OF SCULPTURES IN LANDSCAPE DESIGN: CASE OF GREATER IQBAL PARK, LAHORE","authors":"Sadia Farooq, Mohammad Arif Kamal","doi":"10.23968/2500-0055-2021-6-4-14-23","DOIUrl":"https://doi.org/10.23968/2500-0055-2021-6-4-14-23","url":null,"abstract":"Introduction: A landscaped area is always appealing when designed according to a certain theme and purpose, as is the case with the sculptures in the Greater Iqbal Park. Purpose of the study: We aimed to analyze the influence of ornamental sculptures on people visiting the Greater Iqbal Park situated in Lahore, Pakistan. The objective was to evaluate the importance of the sculptures’ presence in the park, to review the visitors’ opinions on the subject, and to analyze how the sculptures blend in with other elements of the park. Methods: An important aspect of the study is the combination of data collected through observations, pictures, and questionnaires. Results and discussion: 65% of visitors to the park are satisfied with the sculptures’ placement and the lighting around them. The sculptures depicting a bent tree, birds, musical instruments, and a peacock are aesthetically pleasing and alluring for the visitors. The reliefs reference art from the Mughal era, and the material is durable, tough, and weather-resistant. Conclusions: The visitors like to have sculptures in the park, which increases the park’s appeal, especially for children, who can learn visual lessons about shapes and history. The study will help designers with creating variety and inspiring interest through sculptures, especially those related to historical events and complementing their surroundings.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44151620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

APPLICATION OF ANALYTICAL SOLUTIONS FOR BENDING BEAMS IN THE METHOD OF MOVEMENT 弯曲梁的解析解在运动法中的应用

Architecture and Engineering Pub Date : 2021-12-24 DOI: 10.23968/2500-0055-2021-6-4-42-53

V. Karpov, E. Kobelev, A. Panin

{"title":"APPLICATION OF ANALYTICAL SOLUTIONS FOR BENDING BEAMS IN THE METHOD OF MOVEMENT","authors":"V. Karpov, E. Kobelev, A. Panin","doi":"10.23968/2500-0055-2021-6-4-42-53","DOIUrl":"https://doi.org/10.23968/2500-0055-2021-6-4-42-53","url":null,"abstract":"Introduction: Usually, to analyze statically indeterminate rod systems, the classical displacement method and preprepared tables for two types of rods of the main system are used. A mathematically correct representation of local loads with the use of generalized functions makes it possible to find an accurate solution of the differential equation for the equilibrium of a beam exposed to an arbitrary transverse load. Purpose of the study: We aimed to obtain analytical expressions for functions of deflection, rotation angles, transverse forces, and bending moments depending on four types of local loads for beams with different boundary conditions, so as to apply accurate solutions in the displacement method. Methods: We propose an analytical form of the displacement method to analyze rod structural models. For beams exposed to different types of transverse load (uniformly distributed force, concentrated force, or a couple of forces), accurate analytical solutions were obtained for functions of deflection, bending moments, and transverse forces at different types of beam ends’ restraint. This is possible due to the fact that concentrated load and load in the form of the moment of force can be specified by using unit column functions. By transforming Mohr’s integrals, using integration by parts, we show that the system of canonical equations of the displacement method was obtained based on the Lagrange principle. Results: Based on the analysis of a statically indeterminate frame, the effectiveness of the proposed analytical method is shown as compared with the classical displacement method.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49134181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PRESERVING IDENTITY OF HISTORICAL ENVIRONMENTS IN SIBERIA: A CRITICAL LITERATURE REVIEW 保护西伯利亚历史环境的特性:一项批判性文献回顾

Architecture and Engineering Pub Date : 2021-12-24 DOI: 10.23968/2500-0055-2021-6-4-03-13

D. Belova

{"title":"PRESERVING IDENTITY OF HISTORICAL ENVIRONMENTS IN SIBERIA: A CRITICAL LITERATURE REVIEW","authors":"D. Belova","doi":"10.23968/2500-0055-2021-6-4-03-13","DOIUrl":"https://doi.org/10.23968/2500-0055-2021-6-4-03-13","url":null,"abstract":"Introduction: Currently, the projects related to the development of identical historical environments in Siberia, Russia, are predominately inconsistent. Yet there is an opportunity to find a more holistic approach to sustaining local heritage, which could address local cultures and identities through an understanding of how the location, as well as specific spatial and architectural practices, evolve. Purpose of the study: The study aimed to establish a theoretical and methodological framework for sustaining the local identity in architectural terms. Methods: According to the methodological recommendations of Groat and Wang, such methods as critical literature review and logical argumentation were used. Results: The research came to the conclusion that the city identity can be unfolded through two or more congruent layers of existence. This study deals with architectural heritage and society as two types of such layers. It suggests that the local identities of historical environments could be sustained by a combination of the following methods: 1) looking to the past, through analyzing the city’s fabric and searching for “social traces” and semiotic meanings; 2) looking to the future, through using participatory design methods. This methodology should be further tested on specific historical environments in Siberia. The critical literature review will provide researchers and practitioners in the field with a fundamental theoretical framework.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46421952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

AERODYNAMIC STABILITY OF BRIDGES WITH VARIOUS LEVELS OF STRUCTURAL DAMPING 不同结构阻尼水平下桥梁的气动稳定性

Architecture and Engineering Pub Date : 2021-12-24 DOI: 10.23968/2500-0055-2021-6-4-54-62

O. Poddaeva, P. Churin

{"title":"AERODYNAMIC STABILITY OF BRIDGES WITH VARIOUS LEVELS OF STRUCTURAL DAMPING","authors":"O. Poddaeva, P. Churin","doi":"10.23968/2500-0055-2021-6-4-54-62","DOIUrl":"https://doi.org/10.23968/2500-0055-2021-6-4-54-62","url":null,"abstract":"Introduction: Structural damping is one of the most important parameters affecting the aerodynamic stability of bridge structures. Purpose of the study: We aimed to assess the effect that structural damping of a bridge structure has on its stability in a wind current. Methods: In the course of the study, we performed experimental studies of the aerodynamic stability in typical girder bridge structures (with two and four main girders) with different levels of structural damping, facilitated by a unique experimental unit: Large Research Gradient Wind Tunnel, courtesy of the National Research Moscow State University of Civil Engineering (NRU MGSU). Results: The results of the experimental studies show that, despite the general trend towards the decrease in the amplitude of bridge span structure oscillations as the structural damping level increases, the dependence between these parameters is nonlinear. When providing R&D support in the design of real-life structures, in case it is necessary to increase the aerodynamic stability of the superstructure by increasing the level of structural damping (changing the type of joints in structural elements, using mechanical damping devices), it is recommended to conduct experimental studies in wind tunnels to assess the effectiveness of a given solution.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49090678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

DISTRIBUTION OF THE NORMAL REACTIONS ON THE QUANTOMOBILE WHEELS 量子汽车车轮上法向反作用力的分布

Architecture and Engineering Pub Date : 2021-12-24 DOI: 10.23968/2500-0055-2021-6-4-72-79

J. Kotikov

{"title":"DISTRIBUTION OF THE NORMAL REACTIONS ON THE QUANTOMOBILE WHEELS","authors":"J. Kotikov","doi":"10.23968/2500-0055-2021-6-4-72-79","DOIUrl":"https://doi.org/10.23968/2500-0055-2021-6-4-72-79","url":null,"abstract":"Introduction: The progress of science has made it possible to create new quantum engines (QEs) powered by physical vacuum energy. A QE will generate a vector-based propulsive force, or thrust, applicable to the vehicle body directly, with no transmission required. Traditional cars will be upgraded with QEs and thus converted into quantomobiles. QE thrust application at the point of the vehicle body, hovering above the bearing surface, introduces changes in the traditional diagram of forces acting on the vehicle. Therefore, it is necessary to assess the influence of thrust on the longitudinal stability of the quantomobile. Methods: In the course of the study, we upgraded the diagram of forces acting on the traditional vehicle, by introducing QE thrust (bearing in mind vehicle hovering above the bearing surface). We also developed a corresponding mathematical model for the distribution of the normal reactions on the wheels, taking into account QE placement. Results: Among the developed calculation complexes to perform a qualitative analysis of the influence of force factors on the quantomobile chassis load, a complex representing the longitudinal thrust and the thrust height was distinguished. Discussion: These complexes may serve as the basis of calculation units for more detailed programming, analysis, and synthesis of the design of vehicles with QEs, assessment of the longitudinal stability of the vehicle, optimization of QE placement in the quantomobile body. Example: The method developed is presented using a quantomobile similar to a KamAZ-4326 automobile. Conclusion: The considered diagram of forces acting on a quantomobile, including QE thrust above the bearing surface, shall become generic for force diagrams of quantomobiles with additional thrusters intended to increase the longitudinal stability of the vehicle.","PeriodicalId":52295,"journal":{"name":"Architecture and Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44725402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0