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Library's collection Library's IT development Cancel| Numerical simulation of threat-independent progressive collapse | A threat-independent approach is usually utilized for progressive collapse analysis of buildings. This approach is referenced in the current guidelines such as ?Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Modernization Projects? by the U.S. General Service Administration and ?Design of Buildings to Resist Progressive Collapse? by the U.S. Department ...
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| Analysis of journey to work travel behavior by car and bus in the Sydney metropolitan region | Car dependence is a fundamental problem in the sustainability of cities with lowdensity suburban sprawl. Increasing the use of public transport is one of the policy objectives commonly adopted to overcome this problem. It is essential to study journey to work travel behavior by car and bus. This paper applied preference function to analyze ...
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| CPT-based interpretation of pile load tests in clay-silt soil | Two pile axial load tests were performed in a site in Depok, West Java. The soil of the site is predominantly a silt-clay soil, characterized by seven mechanical cone penetration tests (CPTs). The piles were 5.5 m long and 11.5 m long, 250 mm square piles. The results of the static load tests showed ...
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| Seismic properties of moment-resisting timber joints with a combination of bolts and nails | Improvement of cyclic or dynamic performance of timber connections has been intensively conducted since the overall response of wooden structures is merely a function of joint performance. For a bolted joint, filling the lead-hole clearance with epoxy resin or gluing high embedding-strength materials at the interface of the individual timber member are probably the most ...
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| Remediation of diesel fuel contaminated sandy soil using ultrasonic waves | Ultrasonic cleaning has been used in industry for some time, but the application of ultrasonic cleaning in contaminated soil is just recently received considerable attention, it is a very new technique, especially in Indonesia. An ultrasonic cleaner works mostly by energy released from the collapse of millions of microscopic cavitations near the dirty surface. ...
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| Ultra strengthening of wooden girders | Owing to the natural defects of wood, structural timber is currently used with conservative safety factors. This study investigates the use of Carbon Fiber Reinforced Polymer (CFRP) for improving the strength of structural timber. Four flexural test stages were carried out, the modes of failure of the three specimens in each stage were studied ...
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| Estimating the influence of accident related factors on motorcycle fatal accidents using logistic regressio (case study: Denpasar-Bali) | In Denpasar the capital of Bali Province, motorcycle accident contributes to about 80% of total road accidents. Out of those motorcycle accidents, 32% are fatal accidents. This study investigates the influence of accident related factors on motorcycle fatal accidents in the city of Denpasar during period 2006-2008 using a logistic regression model. The study ...
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| Application of prefabricated vertical drain in soil improvement | Although the use of Prefabricated Vertical Drain (PVD) in soil improvement is not new, this paper is interesting since it gives the full spectrum from preliminary design stage; trial embankment and pilot test to final soil improvement. The final installation of the PVD was based on the soil investigation report and the results of instrumentation ...
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| Estimation of congestion cost of private passenger car users in Malioboro, Yogyakarta | Congestion is the condition when the hourly traffic demand exceeds the maximum sustainable hourly throughout of the link. The aim of this research is to estimate the congestion cost of private passenger car users in central business district along the corridor of Malioboro, Yogyakarta, Indonesia. The amount of the congestion cost is the difference ...
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| Flow fields in front of a cylindrical obstacle | An experimental investigation, conducted in two different flows Reynolds number, was carried out to study the structure of the flow field upstream of a cylindrical obstacle. An Acoustic Doppler Velocity Profiler (ADVP) was used to obtain instantaneously the three directions of the mean velocity. Results of the experiments show the longitudinal velocities,u , decrease approaching ...
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| Creep behaviour of fly ash-based geopolymer concrete | Fly ash-based geopolymer concrete is manufactured using fly ash as its source material and does not use Portland cement at all. Beside fly ash, alkaline solution is also utilized to make geopolymer paste which binds the aggregates to form geopolymer concrete. This paper presents the study of creep behaviour of fly ash-based geopolymer concrete. ...
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| Estimating young?s modulus and modulus of rupture of coconut logs using reconstruction method | This research develops a theory of the so called reconstruction method to estimate the Young?s modulus (E) and modulus of rupture (SR) of coconut logs. The reconstruction method includes among others; flexure test on small-clear specimens, which were taken from locations distributed along the horizontal as well as vertical direction inside the logs. Further, ...
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| Behavior of expansive clay of Ngawi region (East Java) under water content variation | The authors have prepared a significant investigation in swelling behavior of expansive clay. The lateral swelling potential obtained from modified oedometer test was especially interesting. Discussant used the term of swelling potential to represent both strain and swelling pressure. The effect of three different initial water contents, which is 20%, 25%, and 30%, on swelling potential has been studied. ...
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| Development of spectral hazard map for Indonesia with a return period of 2500 years using probabilistic method | This study is performed to develop spectral hazard map for Indonesia with a Return Period of 2500 years earthquake. It will be proposed for revision of the Indonesian hazard map in SNI-03-1726-2002 as response to the meeting organized by the Department of Public Works on 27- October-2008 in Jakarta. The meeting has decided to ...
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| Effect of steel fibers on the behavior of over-reinforced beams subjected to pure torsion | The improvement in torsional properties of reinforced concrete (RC) is becoming extremely important in the modern day constructions. Over the years the steel fiber reinforced concrete (SFRC) is being used for improving cracking characteristics of RC. The present paper deals with the behaviour of over reinforced SFRC members subjected to pure torsional loading. Torsion tests ...
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| Building blocks incorporating waste materials bound with bitumen | This paper described an investigation and evaluation which was carried out in the United Kingdom-UK, on the properties of masonry building block materials that incorporate waste materials, namely: steel slag, crushed glass, coal fly ash, rice husk ash (RHA), incinerator sewage sludge ash (ISSA), municipal solid waste incinerator bottom ash (MSWIBA) or shortened as IBA, ...
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| Study on reactivity of circulating fluidized bed combustion fly ashes in the presence of water | A study on reactivity of four different Circulating Fluidized Bed Combustion (CFBC) fly ashes has been realized in the presence of water. Paste of each ash was prepared and analyzed for its setting time, expansion and strength. The products of hydration, and their evolutions over a period of time were identified by X-ray diffraction ...
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| Compressive strength of volcanic ash/ordinary portland cement laterized concrete | This study investigates the effect of partial replacement of cement with volcanic ash (VA) on the compressive strength of laterized concrete. A total of 192 cubes of 150mm dimensions were cast and cured in water for 7, 14, 21, and 28 days of hydration with cement replacement by VA and sand replacement by laterite ...
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| Sidoarjo mud: a potential cement replacement material | This paper presents an experimental and analytical research conducted to study the properties of mortar when treated Sidoarjo mud was added into the mix replacing partially the cement content. The replacements were done at 0, 5, 10, 15, and 20%. Compression, tensile, porosity and Ultrasonic Pulse Velocity (UPV) tests were conducted to evaluate the ...
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| Owner and contractor perceptions toward factors causing delays in structural and finishing works | A construction project comprises of a number of work packages, which are subjected to delays. These delays may be caused by many on-site factors. The aim of this research is to represent owner and contractors perceptions towards delay factors that frequently occur in structural and finishing works. Data for analysis were gathered by distributing ...
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