scholarly journals ANALISIS MOMEN NOMINAL ULTIMIT TIANG BOR UNTUK DIGUNAKAN PADA PERHITUNGAN METODE BROMS

2020 ◽  
Vol 3 (2) ◽  
pp. 455
Author(s):  
Reynard Julio Widjaja ◽  
Gregorius Sandjaja Sentosa
Keyword(s):  
Cross Section ◽  
Pile Foundation ◽  
Reduction Factor ◽  
Bored Pile ◽  
Concrete Quality ◽  
Ultimate Moment ◽  
Section Analysis

Foundation is the lowest part of construction that is important to bear the burden of the building above it. In this analysis, used the calculation of circle cross section analysis to get the nominal moment that can be hold to bore piled that have a diameter 30 cm to 100 cm, other than that used the different of concrete quality, concrete quality that used in this analysis is 22.5 MPa, 25 MPa, and 30 MPa. The amount of reinforcement used is also different, such as 4 reinforcement, 6 reinforcement and 8 reinforcement. The reduction factor that used is the conservative number which is 0.65. After obtained the value of ultimate moment, used the Broms chart to get the value of Hu and H. From the calculation, the result between 50 kNm to 2244 kNm. Based on the comparison with Pile Foundation from brochure, ultimate moment of the Pile Foundation is stronger than the ultimate moment of the bored pile eith 340 kNm for pile foundation dan 206 kNm for bored pile.AbstrakFondasi merupakan bagian paling bawah dari suatu konstruksi yang penting untuk memikul beban bangunan di atasnya. Dalam analisis ini digunakan perhitungan analisis penampang lingkaran yang berguna untuk mencari momen nominal yang dapat ditahan oleh tiang bor yang memiliki diameter 30 cm sampai 100 cm, selain itu digunakan juga mutu beton yang berbeda, mutu beton yang dipakai dalam analisis ini adalah mutu beton fc’ 22.5 MPa, fc’ 25 MPa, dan fc’ 30 MPa. Jumlah tulangan yang dipakai pun juga berbeda yaitu 4 tulangan, 6 tulangan dan 8 tulangan. Untuk faktor reduksi kekuatan sendiri angka yang diambil adalah angka yang konservatif yaitu 0.65 agar lebih aman. Dari hasil perhitungan, momen ultimit diperoleh antara 50 kNm sampai 2244 kNm. Setelah didapat nilai momen ultimit, momen dimasukkan ke dalam grafik Broms agar mendapatkan nilai Hu dan Hijin. Berdasarkan hasil perbandingan dengan tiang pancang yang didapat dari brosur, momen ultimit tiang pancang lebih kuat daripada momen ultimit dari tiang bor dengan momen 340 kNm untuk tiang pancang dan 206 kNm untuk tiang bor.

scholarly journals Analytical Research of Integrity Testing on Bore Pile

2021 ◽  
Vol 9 (11) ◽  
pp. 813-815
Author(s):  
Shubham D. Shingade
Keyword(s):  
Experimental Study ◽  
Cross Section ◽  
Pile Foundation ◽  
Potential Problem ◽  
Integrity Test ◽  
Integrity Testing ◽  
Concrete Quality ◽  
Bore Pile ◽  
Analytical Research ◽  
Pile Integrity

Abstract: The integrity test is conducted on RCC bore pile this test is conducted as per the guidelines of ASTM D5882 respectively. This test is conducted on “Perstorp site which is located in dis -Bharuch Gujrat. In this region the Strata of soil is soft aquifer hence to carry heavy structural load, pile foundation is best solution. The experimental study is carries out on 20 meter length of Bore pile of 600mm in diameter. This paper is based on experimental study on bore pile due to assess the pile integrity for potential problem like cross section change, honeycombing, concrete quality, continuity etc.

scholarly journals Load Transfer On Bored Pile Foundation Instrumented With Fiber Optic And Concrete Quality Analysis

UKaRsT ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 204
Author(s):  
Kevin Martandi Setianto ◽  
Cecilia Lauw Giok Swan ◽  
Paulus Pramono Rahardjo
Keyword(s):  
Pile Foundation ◽  
Load Transfer ◽  
Fiber Optic ◽  
Measurement Data ◽  
Quality Analysis ◽  
Loading Test ◽  
Bored Pile ◽  
Concrete Quality ◽  
Strain Data ◽  
Manual Calculation

The problem in the construction method of the bored pile is the contamination of mud or the other contaminant that can cause the modulus of elasticity of concrete to decrease. This research determines the modulus of concrete on a bored pile foundation instrumented with fiber-optic (FO) with a manual calculation based on strain data during loading test, validated with the results of research in the laboratory and numerical analysis. Fiber optic was used to measure the strain along with the pile during the loading test. The bored pile foundation is divided into 12 segments with the same strain characteristics, and then the modulus value is calculated. The result is the modulus value of each segment is different, and the value of the modulus changes along with the increase in strain; the modulus will decrease as the strain increases. This differs from the theory that the modulus has a fixed value approximated by empirical equations. Made a cylindrical concrete sample on both sides, which installed a FO to record the strain during the loading test. The result is true that the modulus is not constant but decreases as the strain increases. It is shown in the result of analysis to fiber-optic measurement data. Created a model in Plaxis2D for validation, and the results are not much different from the manual calculation.

Failure Modes, Reliability Analysis and Case Studies on the Integration of Copper and Low-K Technology

2004 ◽  
Author(s):  
Huixian Wu ◽  
James Cargo ◽  
Huixian Wu ◽  
Marvin White
Keyword(s):  
Failure Analysis ◽  
Case Studies ◽  
Cross Section ◽  
Focused Ion Beam ◽  
Failure Modes ◽  
Ion Beam ◽  
Copper Interconnects ◽  
Wet Chemical ◽  
Low K ◽  
Section Analysis

Abstract The integration of copper interconnects and low-K dielectrics will present novel failure modes and reliability issues to failure analysts. This paper discusses failure modes related to Cu/low-K technology. Here, physical failure analysis (FA) techniques including deprocessing and cross-section analysis have been developed. The deprocessing techniques include wet chemical etching, reactive ion etching, chemical mechanical polishing and a combination of these techniques. Case studies on different failure modes related to Cu/low k technology are discussed: copper voiding, copper extrusion; electromigration stress failure; dielectric cracks; delamination-interface adhesion; and FA on circuit-under-pad. For the cross-section analysis of copper/low-K samples, focused ion beam techniques have been developed. Scanning electron microscopy, EDX, and TEM analytical analysis have been used for failure analysis for Cu/low-K technology. Various failure modes and reliability issues have also been addressed.

Cross Section Analysis of Cu Filled TSVs Based on High Throughput Plasma-FIB Milling

2012 ◽  
Author(s):  
Frank Altmann ◽  
Jens Beyersdorfer ◽  
Jan Schischka ◽  
Michael Krause ◽  
German Franz ◽  
...  
Keyword(s):  
High Resolution ◽  
Cross Section ◽  
High Throughput ◽  
Cross Sections ◽  
Electron Backscatter Diffraction ◽  
Grain Structure ◽  
Electron Backscatter ◽  
Section Surface ◽  
Backscatter Diffraction ◽  
Section Analysis

Abstract In this paper the new Vion™ Plasma-FIB system, developed by FEI, is evaluated for cross sectioning of Cu filled Through Silicon Via (TSV) interconnects. The aim of the study presented in this paper is to evaluate and optimise different Plasma-FIB (P-FIB) milling strategies in terms of performance and cross section surface quality. The sufficient preservation of microstructures within cross sections is crucial for subsequent Electron Backscatter Diffraction (EBSD) grain structure analyses and a high resolution interface characterisation by TEM.

Objective Cross Section Analysis

1966 ◽  
Vol 5 (3) ◽  
pp. 233-245 ◽  
Author(s):  
R. T. Duquet ◽  
E. F. Danielsen ◽  
N. R. Phares
Keyword(s):  
Cross Section ◽  
Section Analysis

A Cross-Section Analysis of Non-Business Air Travel

1958 ◽  
Vol 53 (284) ◽  
pp. 928-947 ◽  
Author(s):  
John B. Lansing ◽  
Dwight M. Blood
Keyword(s):  
Cross Section ◽  
Air Travel ◽  
Section Analysis

scholarly journals The Cross Section for the J = 0 → 2 Rotational Excitation of Hydrogen by Slow Electrons

1969 ◽  
Vol 22 (6) ◽  
pp. 715 ◽  
Author(s):  
RW Crompton ◽  
DK Gibson ◽  
AI McIntosh
Keyword(s):  
Momentum Transfer ◽  
Cross Section ◽  
Cross Sections ◽  
Vibrational Excitation ◽  
The Cross ◽  
Excitation Processes ◽  
Slow Electrons ◽  
And Diffusion ◽  
Momentum Transfer Cross Section ◽  
Section Analysis

The results of electron drift and diffusion measurements in parahydrogen have been analysed to determine the cross sections for momentum transfer and for rotational and vibrational excitation. The limited number of possible excitation processes in parahydrogen and the wide separation of the thresholds for these processes make it possible to determine uniquely the J = 0 → 2 rotational cross section from threshold to 0.3 eV. In addition, the momentum transfer cross section has been determined for energies less than 2 eV and it is shown that, near threshold, a vibrational cross section compatible with the data must lie within relatively narrow limits. The problems of uniqueness and accuracy inherent in the swarm method of cross section analysis are discussed. The present results are compared with other recent theoretical and experimental determinations; the agreement with the most recent calculations of Henry and Lane is excellent.

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