Full-scale measurements to determine the response of Hume Point to wind loading

Littler, J.D.; Ellis, Bryan

doi:10.1016/0167-6105(92)90115-q

Cited by 24 publications

(4 citation statements)

References 3 publications

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“…Research involving systematic field measurements on large and complex structures, such as super high‐rise buildings, are scarce. Littler and Ellis, [ 1 ] for example, conducted a full‐scale study of wind effects on a 23‐story high‐rise building in east London, then the wind tunnel test results exhibited percentage differences similar to those obtained at full‐scale winds. Previous works [ 2–9 ] carried out long‐term monitoring of a number of super high‐rise buildings, namely, Shanghai Jin Mao Building (421 m), the Shenzhen Di Wang Tower (384 m), the Guangzhou CITIC Plaza Tower (391 m), the Shenzhen Ping An Finance Center (600 m), and a building with a height of 350 m in Hong Kong.…”

Section: Introductionmentioning

confidence: 89%

Field measurements and wind tunnel experimental investigations of wind effects on Guangzhou West Tower

Xie

Liu

2020

Structural Design Tall Build

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The wind-induced acceleration responses at the top of the Guangzhou West Tower (GZWT; 432 m) and the wind speed and direction at the top of Guangzhou Tower (532 m), which is located across the GZWT, were measured during the passage of Typhoon Mangkhut. The two buildings are separated by a river. The variation characteristics of the first two natural frequencies and damping ratios of the GZWT under strong vibrations are obtained by using random decrement technique (RDT) and modified Bayesian spectral density approach (MBSDA). Finally, field measurements of the maximum peak accelerations are compared with wind tunnel test results. The damping ratios identified by MBSDA are found to be greater than the results obtained by RDT. The natural frequencies decrease with increasing maximum acceleration of the corresponding acceleration segment. Besides, they decrease firstly and then increase with time elapses, reaching a minimum value at the maximum mean wind speed. The damping ratios are completely discrete, and no obvious linear correlation exists between the damping ratios and maximum acceleration of the corresponding acceleration segment. The peak accelerations at the top of the GZWT obtained from wind tunnel experiment agree well with that of full-scale measurements. K E Y W O R D S acceleration, full-scale measurement, parameter identification, super high-rise building, typhoon, wind tunnel experiment 1 | INTRODUCTION Due to developments in society and economy coupled with the limitation of modern urban land resources, the number of super high-rise buildings being built or under construction in core urban areas is increasing. These buildings are characterized by light weight, high flexibility, low damping, and low self-vibration frequency, among others; thus, they are sensitive to wind loads, which are often considered in the design of such structures. Field measurements are the most direct and reliable method to obtain the actual dynamic characteristics and evaluate the effects of wind on high-rise buildings. Some full-scale measurements of wind effects on supertall buildings have been conducted worldwide. However, due to the large manpower and material resources the endeavor entails, the cooperation and support of the building's owner are necessary and there were many restrictions on the installation of instruments and layout of circuits. Research involving systematic field measurements on large and complex structures, such as super high-rise buildings, are scarce. Littler and Ellis, [1] for example, conducted a full-scale study of wind effects on a 23-story high-rise building in east London, then the wind tunnel test results exhibited percentage differences similar to those obtained at full-scale winds. Previous works [2-9] 9 ] carried out long-term monitoring of a number of super high-rise buildings, namely, Shanghai Jin Mao Building (421 m),

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Section: Introductionmentioning

confidence: 89%

Field measurements and wind tunnel experimental investigations of wind effects on Guangzhou West Tower

Xie

Liu

2020

Structural Design Tall Build

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“…Numerous field measurements of wind effects on tall buildings have been carried out [1][2][3][4][5][6][7][8][9], including the measurement programs on four Chicago tall buildings currently being undertaken by Notre Dame University and the University of Western Ontario [6] and on 10 super-tall buildings in Hong Kong and Mainland China by City University of Hong Kong [4,5]. These studies provided useful information on the dynamic behaviors, such as natural frequencies, mode shapes and damping ratios, and the wind-induced vibrations of tall buildings.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of typhoon effects on a super-tall building in Hong Kong

Zhi

et al. 2013

Struct. Control Health Monit.

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SUMMARY A super‐tall building with height of 420 m and 88 floors is located in central Hong Kong. Field monitoring of wind effects on the high‐rise structure was conducted during the passage of several typhoons on the basis of a wind and movement monitoring system installed in the building. Field data such as wind speed, wind direction, pressures on cladding, acceleration and displacement responses were simultaneously recorded during the typhoons and then analyzed. Typhoon wind parameters including turbulence intensity, gust factor, peak factor, turbulence integral length scale and power spectral density were presented and discussed. The dynamic properties of the high‐rise structure were determined from the field measurements and compared with those calculated at the design stage. The damping ratios of the super‐tall building were evaluated by a random decrement technique, which demonstrates amplitude‐dependent characteristics. The relationships between the structural dynamic responses and the approaching wind speed were analyzed. Wind tunnel tests were conducted to investigate the wind effects on the super‐tall building. The field‐measured acceleration responses were found to be consistent with the model test results. Finally, the serviceability performance of the super‐tall building during the typhoons was assessed on the basis of the field measurement results. The findings of the paper are expected to be of considerable interest and practical use to professionals and researchers involved in wind‐resistant designs of super‐tall buildings. Copyright © 2013 John Wiley & Sons, Ltd.

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“…With the development of data acquisition techniques during the last three decades, a number of full-scale measurements of wind or seismic effects on tall buildings have been made through-out the world ͑Jeary 1986; Ohkuma et al 1991;Çelebi and Şafak 1992;Şafak and Çelebi 1992;Littler and Ellis 1992;Çelebi 1993;Tamura and Suganuma 1996;Li et al 1998Li et al , 2005Li et al , 2006Li and Wu 2004;Kijewski and Kareem 2001͒, including the measurement programs on four Chicago tall buildings currently being undertaken by Notre Dame University and the University of Western Ontario ͑Kijewski and Kareem 2001͒ and on 10 supertall buildings in Hong Kong and Mainland China by City University of Hong Kong ͑Li et al 1998, 2006Li and Wu 2004͒. However, as commented by Tamura et al ͑2005͒, the chance to conduct full-scale measurements is quite rare, and obtained data are very important and valuable.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Behavior of Taipei 101 Tower: Field Measurement and Numerical Analysis

et al. 2011

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This paper presents selected results measured from a monitoring system with 30 accelerometers installed at six floor levels in 508-m high Taipei 101 Tower located in Taipei City, Taiwan where earthquakes and strong typhoons are common occurrences. Emphasis is placed on analyzing the data recorded during three typhoons ͑Matsa, Talim, and Krosa͒ and a seismic event ͑Wenchuan earthquake occurred on May 12, 2008 in Shichuan, China͒ to investigate the effects of wind and seismic on the supertall building. Dynamic characteristics of the tall building such as natural frequencies, mode shapes, and damping ratios determined from the measured data are presented and compared with those calculated from the finite-element model of the high-rise structure. The seismic performance of this supertall building to a long distance earthquake ͑Wenchuan earthquake͒ is assessed based on the field measurements and numerical analysis. The findings of this study are expected to be of considerable interest and practical use to professionals and researchers involved in the design of supertall buildings.

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Full-scale measurements to determine the response of Hume Point to wind loading

Cited by 24 publications

References 3 publications

Field measurements and wind tunnel experimental investigations of wind effects on Guangzhou West Tower

Field measurements and wind tunnel experimental investigations of wind effects on Guangzhou West Tower

Monitoring of typhoon effects on a super-tall building in Hong Kong

Dynamic Behavior of Taipei 101 Tower: Field Measurement and Numerical Analysis

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