VISEGRAD 4+ SCIENTIFIC TECHNICAL JOURNAL
OFFICIAL JOURNAL OF EUROPEAN ACADEMY OF ARCHITECTURE
www.eceam.eu
Volume 2023
ISSUE 1
OFFICIAL REGISTER OF EUROPEAN DATABASE
OFFICIAL REGISTER OF WORLD BUILDING DATABASES
OFFICIAL REGISTER OF WORLD BUILDING JOURNALS
OFFICIAL REGISTER OF WORLD TECHNICAL SCIENTIFIC INSTITUTES
OFFICIAL REGISTER OF WORLD TECHNICAL EDUCATION CENTERS
OFFICIAL REGISTER OF WORLD TECHNICAL UNIVERSITIES
CERTIFICATION CENTER OF EUROPEAN CIVIL ENGINEERING, ARCHITECTURE AND MANAGEMENT
EUROPEAN CENTER FOR CERTIFICATION OF SCIENTIFIC RESEARCH AND PUBLICATION IN FIELD CIVIL ENGINEERING, ARCHITECTURE AND MANAGEMENT
OFFICIAL REGISTER OF WORLD CIVIL ENGINEERING, ARCHITECTURE AND MANAGEMENT INFRASTRUCTURES
OFFICIAL REGISTER OF ADVANCED MATERIALS IN CIVIL ENGINEERING, ARCHITECTURE AND MANAGEMENT
Welcome to the future of the scientific CIVIL ENGINEERING, ARCHITECTURE AND MANAGEMENT information today
Zdravko Rusev
Editoral director
president of EAA
Vision 2050
Kvetoslav Kmec
Abstract:
Unprecedented challenges of the current he world force us to rethink the way we live. Just because the way we live causes those unprecedented challenges. It seems that it is no longer growth of economy and material consumption that matter for quality of life of society as well as each individual. In a way, we are coming back to wisdom of ancient masters who called for a balance in our life. We call it sustainable development now but it is basically the same. Number of countries in their visions 2050 are trying to suggest the way that would lead to a balance in society ruled by the principle “Leave no one behind”, while protecting natural and cultural resources.
Date of publishing January, 2023
VIBRATION FROM THE RAILS IN THE SOFIA METROPOLITAN
Prof. PhD. Eng. Stoyo Todorov
University of Architecture, Civil Engineering and Geodesy, Sofia
Bulgaria, Sofia 1164, 1 HristoSmirnenskiblvd.
E-mail: stoyo_fte@uacg.bg
Abstract:
The metro in Sofia started operating 25 years ago. The vibrations in the rails are produced by the interaction of the rolling stock and the rails. Vibrations cause noise (20-20000 Hz) and vibrations (0-15 Hz), imperceptible to the human ear, in the environment. They reach residential and public buildings near the route. Their spreading depends on the environment. In solid materials, building structures, rock formations, etc., their distribution is greater than in loose soils, porous materials, etc. If the track is on aartificial facilities or passes over land, the vibrations from passing metro trains may increase. When the train accelerates and stops at a station, in addition to vertical vibrations, longitudinal and transverse vibrations are generated. They increase the overall effect with a longitudinal component.
Date of publishing Apiril, 2023
Official correspondent address, press center and editoral office
Zdravko Rusev, MSc., CSc., Prof. IAA
President of EAA and Editoral director
P.O. BOX 235
160 41 PRAGUE 6
CZECH REPUBLIC
Publisher: Zdravko Rusev - EUROARCH
ISSN 2788-2527
Last update: 03.04.2023 ©1995 Zdravko Rusev All web pages right reserved.