Wind Load Analysis of a Tall Structure with Sharp and Corner Cut Edges

Author(s):  
Abhipsita Rej ◽  
Amlan Kumar Bairagi
2018 ◽  
Vol 10 (5) ◽  
pp. 053703 ◽  
Author(s):  
Abhishek Parikh ◽  
Janna Martinek ◽  
Greg Mungas ◽  
Nicholas Kramer ◽  
Guangdong Zhu

2013 ◽  
Vol 811 ◽  
pp. 228-233
Author(s):  
Yang Yang ◽  
Yuan Ying Qiu ◽  
Gai Juan Wang

The response analysis of a large cable net bearing wind load is conducted by the nonlinear finite element method. First, the form-finding calculation of the cable net structure is carried out to find an equilibrium state which can make the pretensions and sags of the wires meet the given requirements. Then the static analyses of the finite element model of the cable net structure under different wind loads are conducted to assess whether the cable net structure meets the requirements for strength. The work of this paper establishes the foundation for the design of a large cable antenna.


2018 ◽  
Vol 881 ◽  
pp. 132-141
Author(s):  
Oktaviani Tri Handayani ◽  
M. Despriodi Syaher ◽  
Inggar Septhia Irawati

This paper presents the results of a comparison study of the internal forces applied to the structure due to wind load determined based on SNI 1727: 2013 that is inputted manually and automatically using ASCE 7-10 wind load feature in SAP2000. The wind load reviewed in this study is the wind load that calculated by following the Directional Procedure stated in SNI 1727:2013. The study shows that the wind load calculated based on SNI 1727:2013 when the internal pressure coefficient GCpi is defined as 0.18 is 12% higher than the wind load calculated automatically by applying ASCE 7-10 wind load feature provided by SAP2000 when the wind parameters are assigned based on SNI 1727:2013.


2012 ◽  
Vol 2 (1) ◽  
Author(s):  
Ananna Ahmed ◽  
Abdullah Hil Baki ◽  
Munaz Ahmed Noor

Wind pressure calculation for tall building frame has always been an extensive job. Usual methods used to estimate wind load are Wind tunnel test method and Finite Element Method and specifications has been derived. In this research, with a view to eliminating drawbacks of these methods and providing a visual interpretation of wind flow a third method is introduced using Smooth Particle Hydrodynamics (SPH) Approach. A model simulation was performed by a SPH software named SPHysics to calculate the pressure exerted on the structure and to derive a graphical interpretation of flow pattern using Para View. Values of pressure at different elevation of the building that actually occurs when wind with certain velocity flows through a tall building are found. From the data found, height vs. pressure graphs are generated which clearly supports the proportional relationship between these two parameters even with triangular and parabolic variation. Again, velocity vs. pressure graphs are plotted which also justifies inter-relationship of proportionality. This is a qualitative comparison not a quantitative one as there is many limitations regarding technicality, computer capacity, and time. These values may be crosschecked with the values found from conventional methods when more precise and suitable boundary conditions can be used in simulation. In future, with intricate detailing and suitable three dimensional modeling, more accurate value of pressure can be found with wide range of applicability. The authors are expecting derivation of two equations as a function of height and velocity to calculate wind load to use in design if further proceeding is possible. This can offer a significant benefit of simplicity for users and can be beginning a new era of using SPH in structural engineering.   Keywords - Wind force, tall structure, Particle Hydrodynamics Approach


2020 ◽  
Vol 19 (3) ◽  
pp. 381-394
Author(s):  
Sunaryo Cim ◽  
◽  
La Ode Muh. Magribi ◽  
Adris A. Putra ◽  
Minson Simatupang ◽  
...  

The purpose of this study is to analyze the wind load on the Repeater Radio Frequency (RRF) antenna tower, the wind load is viewed from an angle of 0° to the towing cable to the largest angle on the two types of antenna towers, triangle and rectangular. Both types will produce different wind loads so that we can find out which load is the biggest from a combination of wind directions. The research method is by empirical analysis, calculating the wind load alone while other loads are not counted. As a result of wind loads, the tension cable and load direction correspond to each section and then the resultant values of force and direction will arise. And finally, the force is changed to lift and the anchor will hold the force. The results; The use of triangle antenna towers is more beneficial, especially the wind load that occurs is smaller, thus the construction costs are also smaller. The lifting power of a triangle antenna anchor tower is lighter around 1393.971N or 1.393971kN than that of a square antenna anchor tower lift of around 1971.373N or 1.971373kN.


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