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2006

Structural Engineering

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Articles 1 - 30 of 119

Full-Text Articles in Engineering

Reliability-Based Optimization Of Fiber-Reinforced Polymer Composite Bridge Deck Panels, Michel D. Thompson, Christopher D. Eamon, Masoud Rais-Rohani Dec 2006

Reliability-Based Optimization Of Fiber-Reinforced Polymer Composite Bridge Deck Panels, Michel D. Thompson, Christopher D. Eamon, Masoud Rais-Rohani

Civil and Environmental Engineering Faculty Research Publications

A reliability-based optimization (RBO) procedure is developed and applied to minimize the weight of eight fiber-reinforced polymer composite bridge deck panel configurations. The method utilizes interlinked finite element, optimization, and reliability analysis procedures to solve the weight minimization problem with a deterministic strength constraint and two probabilistic deflection constraints. Panels are composed of an upper face plate, lower face plate, and a grid of interior stiffeners. Different panel depths and stiffener layouts are considered. Sensitivity analyses are conducted to identify significant design and random variables. Optimization design variables are panel component ply thicknesses while random variables include load and material …


Magnetic Field Effects On Caco3 Precipitation Process In Hard Water, Nelson Saksono, Setijo Bismo, Elsa Krisanti, Azwar Manaf, Roekmijati Widaningrum Nov 2006

Magnetic Field Effects On Caco3 Precipitation Process In Hard Water, Nelson Saksono, Setijo Bismo, Elsa Krisanti, Azwar Manaf, Roekmijati Widaningrum

Makara Journal of Technology

Magnetic Field Effects on CaCO3 Precipitation Process in Hard Water. Magnetic treatment is applied as physical water treatment for scale prevention especially CaCO3, from hard water in piping equipment by reducing its hardness. Na2CO3 and CaCl2 solution sample was used in to investigate the magnetic fields influence on the formation of particle of CaCO3. By changing the strength of magnetic fields, exposure time and concentration of samples solution, this study presents quantitative results of total scale deposit, total precipitated CaCO3 and morphology of the deposit. This research was run by comparing magnetically and non-magnetically treated samples. The results showed an …


Biogasoline Production From Palm Oil Via Catalytic Hydrocracking Over Gamma-Alumina Catalyst, Anondho Wijanarko, Dadi Ahmad Mawardi, Mohammad Nasikin Nov 2006

Biogasoline Production From Palm Oil Via Catalytic Hydrocracking Over Gamma-Alumina Catalyst, Anondho Wijanarko, Dadi Ahmad Mawardi, Mohammad Nasikin

Makara Journal of Technology

Biogasoline Production from Palm Oil Via Catalytic Hydrocracking over Gamma-Alumina Catalyst. Bio gasoline conversion from palm oil is an alternative energy resources method which can be substituted fossil fuel base energy utilization. Previous research resulted that palm oil can be converted into hydrocarbon by catalytic cracking reaction with γ-alumina catalyst. In this research, catalytic cracking reaction of palm oil by γ-alumina catalyst is done in a stirrer batch reactor with the oil/catalyst weight ratio variation of 100:1, 75:1, and 50:1; at suhue variation of 260 to 340oC and reaction time variation of 1 to 2 hour. Post cracking reaction, bio …


Segmental Sinusoidal Model For Speech Signal Coding, Florentinus Budi Setiawan, Soegijardjo Soegijoko, Sugihartono Sugihartono, Suhartono Tjondronegoro Nov 2006

Segmental Sinusoidal Model For Speech Signal Coding, Florentinus Budi Setiawan, Soegijardjo Soegijoko, Sugihartono Sugihartono, Suhartono Tjondronegoro

Makara Journal of Technology

Segmental Sinusoidal Model for Speech Signal Coding. Periodic signal can be decomposed by sinusoidal component with Fourier series. With this characteristic, it can be modeled referring by sinusoidal form. By the sinusoidal model, signal can be quantized in order to encode the speech signal at the lower rate. The recent sinusoidal method is implemented in speech coding. By using this method, a block of the speech signal with 20 ms to 30 ms width is coded based on Fourier series coefficients. The new method proposed is quantization and reconstruction of speech signal by the segmental sinusoidal model. A segment is …


Determination Of Operation Condition And Product Dimension Accuracy Optimization Of Filament Deposition Modelling On Layer Manufacturing Application, Slamet A. Widyanto, Alva Edy Tontowi, Jamasri Jamasri, Heru Santoso Budi Rochardjo Nov 2006

Determination Of Operation Condition And Product Dimension Accuracy Optimization Of Filament Deposition Modelling On Layer Manufacturing Application, Slamet A. Widyanto, Alva Edy Tontowi, Jamasri Jamasri, Heru Santoso Budi Rochardjo

Makara Journal of Technology

Layer manufacturing process has proven as a process that can produce a high complexity mechanical part. Now, Improvement of LM methods continuously conduct that is aimed to increase precessions and efficiency of these processes. Pressure filament deposition modelling is a form of layer manufacturing process that is designed to produce a plastic part with controlling its semisolid phase. In this research, the equipment of filament depositor is designed and tested to make the product filament deposition. With operation condition observation, the optimal temperature and pressure of deposition process was determined. These experiments used PVC as crystalline material and polypropylene as …


Stress Corrosion Cracking Behavior Of Stainless Steel 304 In The Sulfuric Acid Environment Due To Prestrain, Mohammad Badaruddin, Ahmad Suudi, Arinal Hamni Nov 2006

Stress Corrosion Cracking Behavior Of Stainless Steel 304 In The Sulfuric Acid Environment Due To Prestrain, Mohammad Badaruddin, Ahmad Suudi, Arinal Hamni

Makara Journal of Technology

Stress Corrosion Cracking Behavior of Stainless Steel 304 in the Sulfuric Acid Environment Due to Prestrain. The aim of research is to investigate the effect of prestrain on the stress corossion cracking behavior of AISI 304 stainless steel in the sulfuric acid of 10% concentration under the static cantilever loading according to ASTM E-1681 standart. The specimen of 304 Stainless steel was strain up over the yield strength until reaching the uniform strain of 5% and 10% using servopulser UTM 9506 under the displacement control of 0,3 mm/sec. The results of test show that the prestrain of 5% specimen is …


A Study On Parallel Computation Tools On Networked Pcs, Heru Suhartanto Nov 2006

A Study On Parallel Computation Tools On Networked Pcs, Heru Suhartanto

Makara Journal of Technology

A Study on Parallel Computation Tools on Networked PCs. Many models for natural phenomena, engineering applications and industries need powerfull computing resources to solve their problems. High Performance Computing resources were introduced by many researchers. This comes in the form of Supercomputers and with operating systems and tools for development such as parallel compiler and its library. However, these resources are expensive for the investation and maintenance, hence people need some alternatives. Many people then introduced parallel distributed computing by using available computing resource such as PCs. Each of these PCs is treated as a processors, hence the cluster of …


Crude Oil Sludge Degradation In Microcosmic Scale: Simple Simulation As Preliminary Study On Land Treatment Bioremediation., Astri Nugroho Nov 2006

Crude Oil Sludge Degradation In Microcosmic Scale: Simple Simulation As Preliminary Study On Land Treatment Bioremediation., Astri Nugroho

Makara Journal of Technology

Crude Oil Sludge Degradation in Microcosmic Scale: Simple Simulation as Preliminary Study on Land Treatment Bioremediation. A study in microcosmic condition has been carried out to evaluate the bacterial hydrocarbonoclastic capability in increasing the oil sludge degradation being mixed with NPK fertilizer as nitrogen resources. Aerobic test was carried out by putting erlenmeyers in a shaker incubator, 120 rpm shaking speed, at 50°C temperature. While 150 days in microcosmic one observation showed that the consortium has the potential to grow up to 50% (v/v) sludge oil load. Maximum growth and maximum growth rate of the consortium occurred in the III …


Steel Deck Institute Diaphragm Design Manual: Third Edition, Larry D. Luttrell Nov 2006

Steel Deck Institute Diaphragm Design Manual: Third Edition, Larry D. Luttrell

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.


Testing And Evaluation Of Light Gauge Steel Frame / 9.5 Mm Csp Wood Panel Shear Walls, David Rokas Nov 2006

Testing And Evaluation Of Light Gauge Steel Frame / 9.5 Mm Csp Wood Panel Shear Walls, David Rokas

CCFSS Library (1939 - present)

The use of light gauge steel framing elements sheathed with wood plywood or oriented strand board are becoming more common in the construction of structural shear walls for low-rise platform frame structural systems in Canada. Canadian standards and codes do not currently outline design methods for this type of wall system. Therefore, research at McGill University is underway to help develop design parameters for seismic and wind loading that can be used in conjunction with the 2005 National Building Code of Canada for this type of shear wall system. The research is based on the monotonic and reversed cyclic testing …


Accumulation Of Bracing Strength And Stiffness Demand In Cold-Formed Steel Stud Walls, Thomas Sputo Oct 2006

Accumulation Of Bracing Strength And Stiffness Demand In Cold-Formed Steel Stud Walls, Thomas Sputo

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Testing And Design Of Light Gauge Steel Frame 9mm Osb Panel Shear Walls, C. Blais Oct 2006

Testing And Design Of Light Gauge Steel Frame 9mm Osb Panel Shear Walls, C. Blais

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


The Influence Of Insulation On The Shear Strength Of Screw Connections, Adam R. Lease, Samuel W. Easterling Oct 2006

The Influence Of Insulation On The Shear Strength Of Screw Connections, Adam R. Lease, Samuel W. Easterling

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Component Stiffness Method To Predict Lateral Restraint Forces In End Restraint Single Span Z-Section Supported Roof Systems With One Flange Attached To Sheathing, Michael W. Seek, Thomas M. Murphy Oct 2006

Component Stiffness Method To Predict Lateral Restraint Forces In End Restraint Single Span Z-Section Supported Roof Systems With One Flange Attached To Sheathing, Michael W. Seek, Thomas M. Murphy

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Vibration Characteristics And Acceptability Of Cold-Formed Steel Joists, Y. Frank Chen Oct 2006

Vibration Characteristics And Acceptability Of Cold-Formed Steel Joists, Y. Frank Chen

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Section Moment Capacity Of A New Cold-Formed Hollow Flange Channel Section, Mahen Mahendran, Dhammika Mahaarachchi Oct 2006

Section Moment Capacity Of A New Cold-Formed Hollow Flange Channel Section, Mahen Mahendran, Dhammika Mahaarachchi

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


A Detailed Examination Of Interactive Buckling In Plain Channel Sections, A. Aziz Oct 2006

A Detailed Examination Of Interactive Buckling In Plain Channel Sections, A. Aziz

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Compression Behavior Of Thin Gusset Plates, Roger A. Laboube, Daniel George Lutz Oct 2006

Compression Behavior Of Thin Gusset Plates, Roger A. Laboube, Daniel George Lutz

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Self-Drilling Screwed Knee-Joints For Cold-Formed Steel Portal Frames In Cyclonic Regions, John Carr, Andrew Mansour, Julie Mills Oct 2006

Self-Drilling Screwed Knee-Joints For Cold-Formed Steel Portal Frames In Cyclonic Regions, John Carr, Andrew Mansour, Julie Mills

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Effects Of Hail Damage On The Carrying Capacity Of Standing Seam Profiles, A. Hubner, H. Saal Oct 2006

Effects Of Hail Damage On The Carrying Capacity Of Standing Seam Profiles, A. Hubner, H. Saal

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Bracing Strength And Stiffness Requirements For Axially Loaded Lipped Cee Studs, Perry S. Green, Thomas Sputo, Viswanath Urala Oct 2006

Bracing Strength And Stiffness Requirements For Axially Loaded Lipped Cee Studs, Perry S. Green, Thomas Sputo, Viswanath Urala

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Cold-Formed Steel Slip-Track Connection, James R. Gerloff, Peter Huttelmaier, Patrick W. Ford Oct 2006

Cold-Formed Steel Slip-Track Connection, James R. Gerloff, Peter Huttelmaier, Patrick W. Ford

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Shear Rigidity Of Sheathed Walls With Pneumatically Driven Pin Connections, Wimal Suaris, Stuart Werner Baur Oct 2006

Shear Rigidity Of Sheathed Walls With Pneumatically Driven Pin Connections, Wimal Suaris, Stuart Werner Baur

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Experimental Capacity Assessment Of Cold-Formed Boxed Stud Wall Systems Used In Australian Residential Construction, Maria Pham, Julie Mills, Yan Zhuge Oct 2006

Experimental Capacity Assessment Of Cold-Formed Boxed Stud Wall Systems Used In Australian Residential Construction, Maria Pham, Julie Mills, Yan Zhuge

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Mechanical Properties Of Cold-Formed Steel At Elevated Temperatures, Ju Chen, Ben Young Oct 2006

Mechanical Properties Of Cold-Formed Steel At Elevated Temperatures, Ju Chen, Ben Young

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Report On The Development Of A Cold-Formed Steel Design Course At Kansas State University, V. J. Kircher, Sutton F. Stephens Oct 2006

Report On The Development Of A Cold-Formed Steel Design Course At Kansas State University, V. J. Kircher, Sutton F. Stephens

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Performance Of Deep Leg L-Headers, Reynaud Serrette, Khanh Chau, Dean Peyton, Bud Waters Oct 2006

Performance Of Deep Leg L-Headers, Reynaud Serrette, Khanh Chau, Dean Peyton, Bud Waters

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Design Of Distance Profiles In Walls, N. Albrecht, H. Saal, R. Podleschny Oct 2006

Design Of Distance Profiles In Walls, N. Albrecht, H. Saal, R. Podleschny

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


Strength And Stiffness Of Conventional Bridging Systems For Cold-Formed Cee Studs, Perry S. Green, Thomas Sputo, Viswanath Urala Oct 2006

Strength And Stiffness Of Conventional Bridging Systems For Cold-Formed Cee Studs, Perry S. Green, Thomas Sputo, Viswanath Urala

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.


An Update On Cold-Formed Steel Framing Standards Development In The United States, Jay W. Larson Oct 2006

An Update On Cold-Formed Steel Framing Standards Development In The United States, Jay W. Larson

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.