scholarly journals Double-arm steel connector of glass façades

2019 ◽  
Vol 97 ◽  
pp. 06012
Author(s):  
Izabela Major ◽  
Maciej Major ◽  
Zbigniew Respondek
Keyword(s):  
Load Distribution ◽  
Dynamic Effect ◽  
Wind Pressure ◽  
The Finite Element Method ◽  
Additional Element ◽  
Wind Gusts ◽  
Rectangular Element ◽  
Glass Facade ◽  
Maximum Stresses ◽  
Glass Façade

This paper presents a numerical analysis of a steel double-arm connector, according to the authors’ solution, designed for fixation of glass façades. The analysis was carried out in order to obtain a distribution of stresses and displacements, on the basis of which global displacements and maximum stresses were determined. An additional element of the solution was the use of the M8 bolt, as a linking element of the steel walls of both arms. The numerical simulation was performed using the ADINA program, which is based on the finite element method (FEM). The dynamic effect of wind gusts on the glass façade was assumed, taking into account both wind pressure and suction. The adoption of a rectangular element of the glass façade causes an unfavorable load distribution at the connection point. The conducted research allowed to determine displacements and stresses in a steel connector made of S355JR steel. The applicability of the proposed solution for glass façades with a height of up to 100 m has been demonstrated.

scholarly journals Simulation Investigation of the Wind Load of Photovoltaic Panels

2021 ◽  
Vol 327 ◽  
pp. 02002
Author(s):  
Ivaylo Stoyanov ◽  
Teodor Iliev ◽  
Grigor Mihaylov
Keyword(s):  
Finite Element Method ◽  
Wind Pressure ◽  
The Finite Element Method ◽  
Regulatory Requirements ◽  
Photovoltaic Panel ◽  
Photovoltaic Panels ◽  
Pv Module ◽  
Distributed Load ◽  
Simulation And Evaluation ◽  
Maximum Stresses

In this article, a simulation and evaluation of the mechanical stress exerted by the wind on photovoltaic panels is performed. The stresses of the solar cells in a PV module are calculated using the finite element method, taking into account the wind pressure and the allowable mechanical stresses, according to the regulatory requirements. Seven different operating positions of the photovoltaic panel during its rotation from 0° to 90° are considered. In each of these positions, a distributed load for computer simulations is 1 kN/m2. It is clear from them that for all operating positions of the panel, the maximum stresses are obtained in its frame. These stresses in different cases vary around the value of 50 MPa and are not dangerous for the structure.

scholarly journals Effect of Wind Pressure on Glass Facade

2020 ◽  
Vol 5 (7) ◽  
pp. 26
Author(s):  
Trisha Shetty ◽  
Darshan Verma ◽  
Pushpraj Singh ◽  
Rakesh Verma ◽  
Dhaval Bhandari ◽  
...  
Keyword(s):  
Wind Pressure ◽  
Glass Facade ◽  
Glass Façade

scholarly journals Comparison of Internal Forces Redistribution and Displacements Subjected to the Dynamic Wind Gusts depending of Point Fixed Glass Connector Model Shape

2021 ◽  
Author(s):  
Krzysztof Kuliński ◽  
Przemysław Palacz
Keyword(s):  
Numerical Analysis ◽  
Cross Sections ◽  
Numerical Models ◽  
Glass Plate ◽  
Wind Pressure ◽  
The Finite Element Method ◽  
Wind Gusts ◽  
Maximum Value ◽  
Internal Forces ◽  
Different Shapes

This paper presents an analysis of the redistribution of stresses and displacements in numerical models of various shapes of glass connectors. Two states of dynamic wind gusts were analyzed: the maximum value of suction and the maximum value of wind pressure. For the sake of simplicity, wind gusts were assumed periodically as a sinusoidal function. The model adopts a rectangular glass plate that transmits wind pressure and suction through the point fixed glass connectors. Therefore, single-arm cross connectors were not only subjected to bending stress, but also to torsion. Four different shapes of connectors were analyzed. In the first part of the numerical analysis, T-shaped and C-shaped cross-sections were adopted, and in the next part, both connectors were modified by adding fillet welds to the models. The dynamic numerical analysis was performed using the finite element method in the ADINA program.

scholarly journals Architectural and engineering principles and innovations in the construction of glass-facade buildings

Vestnik MGSU ◽  
2015 ◽  
pp. 7-15 ◽  
Author(s):  
Aleksandr Aleksandrovich Plotnikov
Keyword(s):  
Scientific Community ◽  
Green Building ◽  
Building Construction ◽  
Research Projects ◽  
Quantum Leap ◽  
Glass Facade ◽  
The Given ◽  
General Opinion ◽  
Glass Façade ◽  
Construction Practice

Though the technologies are dynamically developing and there are a lot of research projects, there is still no general opinion on a glass-facade building among the European scientific community, architects and construction engineers. The increasing requirements to heat-protective qualities of translucent structures make us think of the necessity of a quantum leap both in technologies and in principal approaches to the development of architectural and constructive solutions of translucent shells. Together with economical features, the dynamics of heat-protective indicators’ increase show the tendencies to reaching the possibilities limits of mass glass units. The European construction practice usually solve this problem by developing sealed insulating glass units and by different conceptual solutions of the systems of translucent double facades. In the given article the basic theoretical principles and innovative engineering ideas are formulated dealing with the modern glass-facade building construction. “Green Building” conception is analyzed as a European new building philosophy.

scholarly journals Study of the influence of the foundation and the reservoir on the dynamic response in a concrete gravity dam profile

2021 ◽  
Vol 14 (4) ◽  
Author(s):  
Iarly Vanderlei da Silveira ◽  
Lineu José Pedroso ◽  
Giuliano Santa Marotta
Keyword(s):  
Natural Frequencies ◽  
Free Vibration Analysis ◽  
Coupled System ◽  
Seismic Excitation ◽  
The Finite Element Method ◽  
Concrete Gravity Dam ◽  
Gravity Dams ◽  
Concrete Gravity Dams ◽  
Ansys Apdl ◽  
Maximum Stresses

abstract: This work aims to verify the influence of the foundation and the reservoir on the dynamic behavior of concrete gravity dams in terms of the natural frequencies, vibration modes for a free vibration analysis; and in terms of maximum displacements and maximum stresses at singular points of the structure for a seismic excitation. The dam-reservoir-foundation interaction was investigated through modal and transient analysis by the finite element method via ANSYS APDL software. For this study, we used a typical Brazilian dam profile and compatible data from a Brazilian earthquake for the seismic excitation. The results showed the influence of the reservoir and the foundation on the natural frequencies in the coupled system, as well as its repercussions on the response of the dam under seismic excitation.

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