Computational Study of Wind Effect on Window Flame Spread across the Exterior Wall of High-Rise Building

2013 ◽  
Vol 438-439 ◽  
pp. 1898-1902
Author(s):  
Jun Mei Li ◽  
Chen Chen Yin ◽  
Cheng Hu ◽  
Yan Feng Li ◽  
Peng Xu
Keyword(s):  
Flame Spread ◽  
Computational Study ◽  
Wind Effect ◽  
Exterior Wall ◽  
High Wind ◽  
High Wind Speed ◽  
Protection Measures ◽  
High Rise ◽  
High Rise Building ◽  
Passive Fire Protection

The fire in high-rise buildings is perhaps more dangerous than those occur in normal buildings because of the strong stack effect and wind effect on the fire. The wind effects on the wind flame spread across the exterior wall of the high rise building are studied in this paper by the numerical methods. The results show that high wind speed will change the wind flame spread direction and make the room inclined above the fire room more danger, especially the room at the same floor adjacent to the fire room. Special passive fire protection measures should be taken under these kinds of conditions.

Wind effect of a twin-tower super high-rise building with weak connection

2018 ◽  
Vol 27 (15) ◽  
pp. e1503 ◽  
Author(s):  
Lele Zhang ◽  
Wentao Cheng ◽  
Zhuangning Xie
Keyword(s):  
Wind Effect ◽  
High Rise ◽  
High Rise Building

scholarly journals CFD and Experimental Study of Wind Pressure Distribution on the High-Rise Building in the Shape of an Equilateral Acute Triangle

Fluids ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 81
Author(s):  
Norbert Jendzelovsky ◽  
Roland Antal
Keyword(s):  
Pressure Coefficient ◽  
Wind Pressure ◽  
National Standard ◽  
Wind Effect ◽  
Wind Flow ◽  
The European Union ◽  
Scaled Model ◽  
Effect Analysis ◽  
High Rise ◽  
High Rise Building

There is a lack of detailed information about wind flow and distribution of wind pressure around atypically shaped high-rise buildings. The national standard EN 1991-1-4 Eurocode 1 used to determine the effects of wind on the territory of Slovakia (and indeed other countries of the European Union) does not have a procedure for determining the effects of wind on objects of triangular shape. This presents a problem for designers and engineers, as there exist no generally binding/valid rules to follow when performing the wind effect analysis. This paper shows the procedure of identification and results of the external wind pressure coefficient for the triangularly shaped high-rise building. Two methods of calculation have been chosen for this purpose. First, experimental measurements were performed on a scaled model of the building cross-section in the wind tunnel. Subsequently, software simulations were performed on the same scaled model in the CFD (computational fluid dynamics) program ANSYS CFX. Results of wind pressure were obtained for two directions of wind flow measured in 16 sampling points distributed irregularly around the circumference of the model. Results were mutually compared and verified. At the end, the wind flow effects on a real-size triangular high-rise building in the built-up area performed by software simulation are shown.

scholarly journals Analysis of Wind Effect on High-Rise Building for Different Terrain Category

2017 ◽  
Vol 2 (12) ◽  
pp. 23
Author(s):  
Chinedum Vincent Okafor ◽  
Kevin Chucks Okolie ◽  
Mbanusi Echefuna Cyril ◽  
Chinenye Pamela Okafor
Keyword(s):  
Wind Speed ◽  
Wind Pressure ◽  
Wind Effect ◽  
Element Analysis ◽  
Nodal Displacement ◽  
Building Model ◽  
High Rise ◽  
High Rise Building ◽  
Profile Equation ◽  
Terrain Category

This paper analyzed the effect of wind loadings on high-rise building for different terrain categories. The wind speed and design wind pressure for the different terrain categories adopted for this study were calculated as per logarithmic wind profile equation and BS6399-2:1997 respectively. Also, the nodal displacement of a 3D high-rise building model with reference to the calculated design wind loads were performed using finite element analysis software(STADDPROV8I). From the result obtained, it was shown that Terrain category IV when compared to other terrain categories recorded lower wind speed and pressure from the ground to a height of about 10m. The writers also observed that at greater terrain category(TC4), the wind speed and pressure tends to be much higher at the top floors(10m-48m) of the high-rise building whereas, terrain categories (TC3, TC2, TC1) recorded lower wind speed and pressure at that same height(10m-48m). this disparity however was discovered to be due to a phenomenon known as gust effect. Also, the nodal displacement for the different terrain category (TC4, TC3, TC2 and TC1) on each floor of the high-rise building increased uniformly in respective pattern as the height of the 3D model increases.  In conclusion, the authors therefore remark “the greater the terrain category, the lowest is the wind speed in the roughness sub layer and the longer height it takes to reach gradient wind speed”.

A Study on the Regulations for Inspection Method of High-Rise Building Exterior Wall Tile in Taiwan and Japan

2014 ◽  
Vol 1079-1080 ◽  
pp. 183-186
Author(s):  
Chu Tsen Liao ◽  
Chia Liang Weng ◽  
Yang Sheng Fang
Keyword(s):  
Wall Tile ◽  
Exterior Wall ◽  
Inspection Method ◽  
Repair Work ◽  
Construction Market ◽  
High Rise ◽  
High Rise Building ◽  
Report System ◽  
Building Safety ◽  
Wall Construction

Tile is one of the most popular materials for high-rise building exterior wall construction in Taiwan. High-rise buildings in Taiwan were first built approximately 35 years ago. Wall tiles of these buildings currently are deteriorated facing the need of repair. In recent years, subject of exterior wall tile inspection at high-rise building have gained considerable attention. Taiwan government enacted the regulations on fire evacuation and equipment inspection for building safety. And attempt to add the article of exterior wall inspection for building safety. In other ways, high-rise buildings were first built approximately 50 years ago in Japan. Inspection and repair work for high-rise buildings plays an important role in the building construction market in Japan. Jurisdiction of Ministry of Land, Infrastructure, Transport and Tourism legislate the regulations “Periodic Report System”. Exterior wall inspection methods were regulated under these regulations. In order to sustain safety quality environment within existent high-rise buildings, it is necessary for Taiwan government to legislate on exterior wall inspection today. The purpose of this study is to compare the regulations for inspection method of high-rise building exterior wall tile in Taiwan and Japan. We hope the conclusion of this study could give a significant suggestion to Taiwan building inspection method in the future.

scholarly journals Review on Electrical Installations and Lightning Protection Measures for High-rise Building

2017 ◽  
Vol 6 (1) ◽  
pp. 14
Author(s):  
Yue Wang ◽  
Cheng Hao Li ◽  
Xiao Lei Tian
Keyword(s):  
Construction Industry ◽  
Economic Loss ◽  
Protection System ◽  
Lightning Protection ◽  
Protection Measures ◽  
High Rise ◽  
High Rise Building ◽  
Protection Technology ◽  
The Impact

Lightning protection technology is widely used in electrical construction industry by protecting the buildings and its internal electrical infrastructure. Further researches on lightning protection technology are crucial due to the complexity of high-rise building internal electrical design and existence of some problem in current lightning protection technology. Lightning protection system will be more mature along with the development of technology, contributing to better prevention, ensures the safety of people’s lives and reduce the impact of economic loss caused by lightning. This article will focus on the analysis of electrical installations and lightning protection measures of high-rise building for future references.

Partial Collapse During Construction of a High Rise Building Due to Fire

2005 ◽  
Vol 90 (5) ◽  
pp. 42-48
Author(s):  
Predrag L. Popovic ◽  
Richard C. Arnold
Keyword(s):  
High Rise ◽  
High Rise Building
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