Vision-based displacement measurement method for high-rise building structures using partitioning approach

2010 ◽  
Vol 43 (7) ◽  
pp. 642-647 ◽  
Author(s):  
Jong-Woong Park ◽  
Jong-Jae Lee ◽  
Hyung-Jo Jung ◽  
Hyun Myung
Author(s):  
Masanori Imazeki ◽  
Koji Tanida ◽  
Masao Mutaguchi ◽  
Yuji Koike ◽  
Tamotsu Murata ◽  
...  

Abstract A hybrid mass damper system has been developed with a view to counteracting wind- and earthquake-excited vibrations of large high-rise building structures. In order to eliminate the large space needed to accommodate a pendulum-type mass damper adapted to the long period of high-rise building, mechanism has been devised for suspending the auxiliary mass on a V-shaped rail sliding on rollers. The base angle of the V-shaped rail is varied for adjusting the natural period of the mass damper system. A suboptimal algorithm based on the minimum norm method has been adopted for designing the auxiliary mass driving system. Three units of this damper system, each equipped with auxiliary mass weighing 110 tons, have been installed on a 52-story building. Satisfactory performance conforming in all practical aspects with design has been verified from vibration test on actual building after installation. As sequel, the functioning of the system during the first year of service is also reported.


2020 ◽  
Vol 3 (2) ◽  
pp. 28-31
Author(s):  
Azhari Jum’atullah ◽  
Irzan Zakir ◽  
Massus Subekti

The purpose of this research is to get the strong value of lighting at L1 building of Universitas Negeri Jakarta and compare the measurement result using luxmeter with software of Dialux Evo 6.2. This research uses engineering methods by utilizing three ways of measurement, manual calculation and simulation of Dialux Evo 6.2. Measurement method using Luxmeter as measuring instrument to get the measured value of the measured light in the learning room based on the standard procedure of calculation according to SNI and the simulation using the program of Dialux Evo 6.2 to predict the strong value of the illumination that should be in the building. The results of this study indicate that the average value of the average light is still not much according to the standard. Then by manual calculation and simulation, the strong value of illumination that should be in the building is also below 350 lux for study room, under 500 lux for laboratory, and under 750 lux for technic al drawing room. Then to improve the design of the high rise building, to achieve a strong value of lighting above 350 lux, 500 lux and 750 lux can be obtained by changing the wall color characters that increased to reach 3- 9.6 percent, a 52-84 percent increase after changing the point of light , as well as an increase of 54-85 percent after changing the color of the walls and the point of light. Abstrak Tujuan dari penelitian ini adalah untuk mendapatkan nilai kuat penerangan pada gedung L1 Universitas Negeri Jakarta dan membandingkan hasil pengukuran menggunakan luxmeter dengan software Dialux Evo 6.2. Penelitian ini  menggunakan metode rekayasa teknik dengan memanfaatkan tiga cara yaitu pengukuran, perhitungan manual dan simulasi Dialux Evo 6.2. Cara pengukuran menggunakan Luxmeter sebagai alat ukur untuk mendapatkan nilai kuat penerangan yang terukur pada ruang belajar berdasarkan standar tata cara perhitungan menurut SNI dan cara simulasi menggunakan program Dialux Evo 6.2 untuk memprediksi nilai kuat penerangan yang seharusnya terdapat pada gedung bertingkat. Hasil penelitian ini menunjukan bahwa nilai kuat penerangan rata-rata yang masih banyak yang belum sesuai standar. Kemudian dengan cara perhitungan manual dan simulasi, nilai kuat penerangan yang seharusnya terdapat pada gedung bertingkat tersebut juga masih dibawah 350 lux untuk ruang belajar, dibawah 500 lux untuk laboratorium, dan dibawah 750 lux untuk ruang gambar teknik. Kemudian pada perbaikan desain gedung bertingkat tersebut, untuk mencapai nilai kuat penerangan di atas 350 lux, 500 lux dan 750 lux dapat diperoleh dengan merubah karakter warna dinding yang mengalami kenaikan mencapai 3-9,6 persen, kenaikan 52-84 persen setalah merubah titik lampu, serta kenaikan 54-85 persen setelah merubah warna dinding dan titik lampu.


2011 ◽  
Vol 99-100 ◽  
pp. 46-50
Author(s):  
Ming Chen Xue ◽  
Yong Sheng Zhao

In this paper, the contents, meaning and importance of conceptual design in the high-rise building structure design are explored from the following respects: structural system, facade layout and multi-channel seismic line. It not only provides a strong protection of concept for calculation of high-rise building structures, but also accumulates some experience for the research on conceptual design of high-rise structures.


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