scholarly journals SIMULASI KUAT PENERANGAN GEDUNG BERTINGKAT MENGGUNAKAN SOFTWARE DIALUX EVO 6.2. DI GEDUNG L1 TEKNIK ELEKTRO UNIVERSITAS NEGERI JAKARTA

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.

Author(s):  
Rashid A. Mangushev ◽  
Nadezda S. Nikitina

The study describes the standard procedure of the assessment of the bearing capacity of piles by field methods used in the Russian Federation. Basing on the example of an experimental deep-laid foundation pile (length L = 65 m, diameter D = 1.2 m) intended for a high-rise building designed for a thick layer of loose ground the study demonstrates the structure of a loading system on site and the results of static tests of piles in comparison with the results of analytical and numerical calculations. On the same construction site an experimental barrette-pile of rectangular cross-section measuring 3.3 x 1.1 with a length of 65 m was installed with the base in solid Protero­zoic clays. The pile test was carried out using Osterberg cells. For this purpose in the process of the installation of the pile strain gauges were mounted in its reinforcing cage at 9 levels. The test barrette-pile was carried out in two stages. On the first stage a standard test of the whole pile in the top-down direction was performed (Top - Down). On the second stage, after reaching the maximum possible load, the “O - cell” element test was performed trans­mitting the load in two directions (up and down). “O - cell” was located at a depth of 50 m in the layer of blue- stone. The article contains the graphs of the movements of pile from under the load applied on the first and second stages of the tests and the general assessment of the load-bearing capacity of the barrette-piles by different methods


2021 ◽  
Vol 1 ◽  
pp. 1-10
Author(s):  
Oleksandr Samoilenko

Nature has often made necessary things simple (elementary) and complicated ones unnecessary. This can be applied to measurement models of the large amount of working measurement standards and working measuring instruments. Nevertheless, if measurement model is elementary, it does not mean that it is primitive. It should be formulated according to the sufficiency, mathematical completeness and correctness principles. The attempt to formulate models according to the mentioned principles is introduced. Models are called elementary, as measurement result is function of one or two homogeneous measured quantities. Thus, measurement result is a single reading of the measurement standard or measuring instrument or average value of several readings, or bias as the disparity between readings of the calibrated measuring instrument and measurement standard. Notwithstanding the elementary measurement models simplicity, many variants of solutions are obtained in the process of the measurement result uncertainty evaluation by these models. Publication demonstrates how to choose the best uncertainty evaluation from many variants of solutions depending on whether single readings or average of several readings is included to measurement model. The best choice of the measurement model depends on resolution of the indicating measuring instrument. Moreover, the best choice depends on the measurement standard used for calibration, which is material measure or measuring instrument and depends on the calibration object: material measure or measuring instrument.


2020 ◽  
pp. 35-42
Author(s):  
Yuri P. Zarichnyak ◽  
Vyacheslav P. Khodunkov

The analysis of a new class of measuring instrument for heat quantities based on the use of multi-valued measures of heat conductivity of solids. For example, measuring thermal conductivity of solids shown the fallacy of the proposed approach and the illegality of the use of the principle of ambiguity to intensive thermal quantities. As a proof of the error of the approach, the relations for the thermal conductivities of the component elements of a heat pump that implements a multi-valued measure of thermal conductivity are given, and the limiting cases are considered. In two ways, it is established that the thermal conductivity of the specified measure does not depend on the value of the supplied heat flow. It is shown that the declared accuracy of the thermal conductivity measurement method does not correspond to the actual achievable accuracy values and the standard for the unit of surface heat flux density GET 172-2016. The estimation of the currently achievable accuracy of measuring the thermal conductivity of solids is given. The directions of further research and possible solutions to the problem are given.


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

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