Evaluation of the Impact of Potential Fire Scenarios on Structural Elements of a Cable-Stayed Bridge

2009 ◽  
Vol 19 (2) ◽  
pp. 85-106 ◽  
Author(s):  
I. Bennetts ◽  
K. Moinuddin
Keyword(s):  
Structural Elements ◽  
Cable Stayed Bridge ◽  
Fire Scenarios ◽  
The Impact

Influence of the distribution of the shear walls on the seismic response of the buildings

2020 ◽  
Vol 15 (1) ◽  
pp. 37-44
Author(s):  
El Mehdi Echebba ◽  
Hasnae Boubel ◽  
Oumnia Elmrabet ◽  
Mohamed Rougui
Keyword(s):  
Structural Analysis ◽  
Seismic Response ◽  
Natural Frequency ◽  
Structural Design ◽  
Structural Response ◽  
Shear Walls ◽  
Structural Elements ◽  
Analysis Software ◽  
Ansys Apdl ◽  
The Impact

Abstract In this paper, an evaluation was tried for the impact of structural design on structural response. Several situations are foreseen as the possibilities of changing the distribution of the structural elements (sails, columns, etc.), the width of the structure and the number of floors indicates the adapted type of bracing for a given structure by referring only to its Geometric dimensions. This was done by studying the effect of the technical design of the building on the natural frequency of the structure with the study of the influence of the distribution of the structural elements on the seismic response of the building, taking into account of the requirements of the Moroccan earthquake regulations 2000/2011 and using the ANSYS APDL and Robot Structural Analysis software.

What's Left of the Law of Integration?

2018 ◽  
Author(s):  
Julio Baquero Cruz
Keyword(s):  
International Law ◽  
Fundamental Rights ◽  
Structural Elements ◽  
The European Union ◽  
Difficult Situation ◽  
Court Of Justice ◽  
Structural Connections ◽  
The Law ◽  
Constitutional Pluralism ◽  
The Impact

This book discusses the impact of the difficult situation the European Union is currently going through on some structural elements of its legal order, looking for symptoms of decay, exploring examples of resistance, and assessing its overall state of health. The original choices made by the drafters of the Treaties and by the Court of Justice are put in their proper historical perspective, understanding Union law as a tool of civilization, and explaining its current problems, at least in part, as a consequence of the waning of the initial impetus behind integration. The concrete themes to be explored are the following: primacy, the national resistance to it and constitutional pluralism; the preliminary rulings procedure; Union citizenship, equality, and human dignity; the scope of the Charter and the standard of protection of fundamental rights; and the rigidity and fragmentation of the Union system in connection with the recent occasional use of international law as an alternative to Union law. The book looks at the development of the law throughout the decades, inevitably losing much detail, but hopefully also uncovering structural connections and continuities.

scholarly journals Effect of blast loading and resulting progressive failure of a cable-stayed bridge

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Ravi Mudragada ◽  
S. S. Mishra
Keyword(s):  
Progressive Failure ◽  
Blast Resistance ◽  
Progressive Collapse ◽  
Building Structures ◽  
Structural Elements ◽  
Blast Loads ◽  
Cable Stayed Bridge ◽  
Bridge Performance ◽  
Cable Stayed Bridges

AbstractMany researchers have carried out experimental and numerical investigations to examine building structures’ response to explosive loads. Studies of bridges subjected to blast loads are limited. Hence, in this study, we present a case study on a cable-stayed bridge, namely, Charles River Cable-Stayed Bridge-Boston, to assess its robustness and resistance against the progressive collapse resulting from localized failure due to blast loads. Three different blast scenarios are considered to interpret the bridge performance to blast loads. To monitor the progressive failure mechanisms of the structural elements due to blast, pre-defined plastic hinges are assigned to the bridge deck. The results conclude that the bridge is too weak to sustain the blast loads near the tower location, and the progressive collapse is inevitable. Hence, to preserve this cable-stayed bridge from local and global failure, structural components should be more reinforced near the tower location. This case study helps the designer better understand the need for blast resistance design of cable-stayed bridges.

The Role of the Conclusions of the Council of Judges of the Russian Federation in the Prevention of the Emergence and Development of Conflicts of Legal Interests in the Judicial System of Russia

2020 ◽  
Vol 12 ◽  
pp. 56-66
Author(s):  
E. V. Ryabtseva ◽  
Keyword(s):  
Russian Federation ◽  
Judicial System ◽  
Structural Elements ◽  
Consistent System ◽  
Optimal Behavior ◽  
Regulatory Impact ◽  
The Russian Federation ◽  
The Impact ◽  
Individual Regulation

The growing role of the judicial community in reforming the judicial system actualizes the scientific problems of law enforcement associated with understanding the essence of the regulatory impact of the Councils of Judges of the Russian Federation as a body of the judicial community to prevent the emergence of conflicts of legal interests in judicial activity. The purpose of the research is to theoretically substantiate the essence of individual regulation of conflicts of legal interests by the Council of Judges of the Russian Federation, aimed at optimizing its activities to combat corruption. The worldview and methodological basis were the works of theoretical scholars and their methods of integrative understanding of law to substantiate the impact of the Council of Judges of the Russian Federation on judicial activity through individual regulation. The conclusion is substantiated that the activities of the Commission of the Council of Judges of the Russian Federation on Ethics, related to the drawing up of opinions on the assessment of conflicts of legal interests and other corruption risks for both acting judges and retired judges, is an individual regulation of legal relations through: interpretation of law; overcoming gaps and conflicts in the law; individuali zation of rights, etc. The content of the interpretation of law by the Commission of the Council of Judges of the Russian Federation on Ethics is: the application of certain norms of both international and national law in a specific legal relationship when assessing conflicts of legal interests among judges through a systematic interpretation of the norms of law as a system of elements, defining its role in law, identifying other norms, as well as the principles of law; interpretation of the principles and norms of law, through the legal-logical interpretation of a normative act as logically interconnected structural elements of a single, internally agreed and consistent system of principles and norms of law, when deciding on the presence of conflicts of legal interests in the activities of judges, etc. The paper substantiates that in relation to conflicts of legal interests, individualization should be aimed at determining by the Council of Judges of the Russian Federation typical situations of such conflicts for their correct assessment and development of recommendations related to the optimal behavior of judges, when circumstances arise that lead to conflicts of legal interests.

scholarly journals Evaluasi dan Retrofit Struktur Gedung Beton Bertulang Akibat Kebakaran

2021 ◽  
Vol 17 (1) ◽  
pp. 57-67
Author(s):  
Nurul Hidayati ◽  
Henricus Priyosulistyo ◽  
Andreas Triwiyono
Keyword(s):  
Site Investigation ◽  
Office Building ◽  
Building Structure ◽  
Structural Stiffness ◽  
Structural Elements ◽  
Concrete Material ◽  
Steel Bracing ◽  
The Cost ◽  
The Impact ◽  
Cfrp Wrapping

ABSTRACT Several studies have been carried out related to the impact of fire on the strength of reinforced concrete material. It shows that there is a decrease in strength and a decrease in structural stiffness. The degree of damage is dependent on the temperature and duration of the fire. To ensure accessibility, the building needs to be evaluated whether the building can be re-functioned immediately. The results of site investigation are evaluated to determine the structure retrofit and reinforcement methods and cost-effectiveness compared to the cost of a new building. The office building structure under review is analytically evaluated based on SNI 1726:2019 and SNI 1727:2018. The results showed that 31% of columns and 32% of beams need to be strengthened. In addition, steel bracing and CFRP wrapping on the structural elements were applied. The cost of retrofitting required Rp2.998.488.781,07, which is lower than the cost of the new building structure, which costs Rp4.950.087.016,34. ABSTRAKBeberapa penelitian yang telah dilakukan terkait dampak kebakaran terhadap kekuatan material beton bertulang, memperlihatkan bahwa terdapat penurunan kekuatan dan kapasitas struktur. Tingkat penurunan tergantung antara lain pada suhu dan durasi kebakaran. Untuk meyakinkan tingkat fisibilitas, gedung tersebut perlu dievaluasi kemungkinan dapat atau tidaknya gedung itu difungsikan kembali. Hasil evaluasi tersebut dijadikan pertimbangan dalam menentukan metode perbaikan dan perkuatan yang efektif untuk kemudian dibandingkan dengan biaya pembangunan gedung baru. Struktur gedung kantor PLN Unit Cabang Distribusi Jakarta Raya ini akan dievaluasi dengan cara analitis berdasarkan SNI 1726:2019 dan SNI 1727:2018. Terdapat total 31% kolom dan 32% balok yang perlu diperkuat. Metode perkuatan yang digunakan adalah penambahan bracing baja dan CFRP. Material CFRP tersebut dililitkan pada elemen struktur. Biaya perkuatan yang diperlukan adalah Rp2.998.488.781,07, lebih rendah dibandingkan nilai struktur gedung, yaitu Rp4.950.087.016,34.

Potential Insights from Performance-Based Design of Fire Protection in Tall Buildings

2019 ◽  
Author(s):  
Pierre Ghisbain ◽  
Jenny Sideri ◽  
Reyhaneh Abbasi ◽  
Luciana Balsamo ◽  
Reza Imani ◽  
...  
Keyword(s):  
Fire Protection ◽  
Mechanical Response ◽  
Tall Buildings ◽  
Element Model ◽  
Fire Effects ◽  
Design Fire ◽  
Fire Engineering ◽  
Fire Scenarios ◽  
Fire Loading ◽  
The Impact

<p>Analysis of the structural performance under realistic fire scenarios makes Performance Based Fire Engineering (PBFE) particularly suited to design fire protection of tall buildings. In this paper, the impact of using the PBFE method is studied using a standard tall building as an example. The parametric temperature- time curves recommended in Eurocode 1 are used to define the fire loads. The thermal and mechanical response of the building to the imposed fire loading is subsequently analyzed by means of a finite element model of the mixed-use tower. Particular care is devoted to analyzing the performance of a steel truss at a transfer level, to study potential global effects of a local fire, effects that are not studied or understood within the prescriptive design framework.</p>

scholarly journals Single-Coil Eddy Current Sensors and Their Application for Monitoring the Dangerous States of Gas-Turbine Engines

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2107 ◽  
Author(s):  
Sergey Borovik ◽  
Yuriy Sekisov
Keyword(s):  
Gas Turbine ◽  
Eddy Current ◽  
Natural Aging ◽  
Turbine Engines ◽  
Radial Clearance ◽  
Gas Turbine Engines ◽  
Structural Elements ◽  
Single Coil ◽  
The Impact ◽  
Blade Tips

The creation and exploitation of gas turbine engines (GTE) often involve two mutually exclusive tasks related to ensuring the highest reliability while achieving a good economic and environmental performance of the power plant. The value of the radial clearance between the blade tips of the compressor or turbine and the stator is a parameter that has a significant impact on the efficiency and safety of the GTE. However, the radial displacements that form tip clearances are only one of the components of the displacements made by GTE elements due to the action of power loads and thermal deformations during engines’ operation. The impact of loads in conjunction with natural aging is also the reason for the wear of the GTE’s structural elements (for example, bearing assemblies) and the loss of their mechanical strength. The article provides an overview of the methods and tools for monitoring the dangerous states of the GTE (blade tips clearances, impellers and shafts displacements, debris detecting in lubrication system) based on the single-coil eddy current sensor, which remains operational at the temperatures above 1200 °C. The examples of practical application of the systems with such sensors in bench tests of the GTE are given.

scholarly journals Study of the Dynamic Loading Impact on the Design of Pentices when Sinking Vertical Mine Shafts

2018 ◽  
Vol 41 ◽  
pp. 01016 ◽  
Author(s):  
Vladimir Pershin ◽  
Aleksandr Kopytov ◽  
Fadeev Yuriy ◽  
Wetti Ahmed
Keyword(s):  
Dynamic Loading ◽  
Production Capacity ◽  
Design Parameters ◽  
Structural Elements ◽  
State Technical ◽  
Mine Shaft ◽  
Shaft Sinking ◽  
Reconstruction Project ◽  
Reconstruction Period ◽  
The Impact

Based on the reconstruction project for Gorno-Shorsky branch of JSC “Evrazruda” developed by JSC “Giproruda” to maintain the enterprise’s production capacity of 6 million tons per year, the shaft “Skipovoy” should be sunk from the level of 115 m to the level of 85 m. Due to the fact that the reconstruction period was to be shortened, the employees of LLC “SibGorComplex Engineering” together with the Underground and Mine Construction Department of T.F. Gorbachev Kuzbass State Technical University developed several variants of new design of wedge pentices for vertical mine shaft sinking under hoisting operations. The results of studies of the dynamic loading impact on the design of safety devices in skip shaft sinking are presented in the article. Based on the method of designing the force action essentials for the emergency skip dumping, the functions allowing determining the value of the impact on the main structural elements of pentices completely bridging over the shaft cross-section that can be used to substantiate the design parameters of new wedge pentices.

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