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Civil Engineering Dimension
ISSN : 14109530     EISSN : 1979570X     DOI : -
Core Subject : Engineering,
The Civil Engineering Dimension (Dimensi Teknik Sipil) is a refereed journal, published twice a year, in March and September.
Arjuna Subject : -
Articles 9 Documents
Search results for , issue "Vol. 2 No. 1 (2000): MARCH 2000" : 9 Documents clear
TINJAUAN TERHADAP PEMBATASAN DIMENSI TEMBOK PENGISI YANG MENERIMA BEBAN MUKA AKIBAT GEMPA Takim Andriono; Gideon Hadi Kusuma
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (69.642 KB) | DOI: 10.9744/ced.2.1.pp. 1-8

Abstract

In order to anticipate the impact of face loading due to severe earthquakes on infilled wall panels of a frame structure, the maximum area or span of these panels needs to be restricted as recommended in the Design Manual for Ordinary Reinforced Concrete Structures and Reinforced Wall Structures 1983. However, this restriction is merely based on the seismic zone and soil condition where the structure is located; the wall's position, whether it is on the ground or top floor and whether it is located inside or on the perimeter of the building. A study which was carried out to re-evaluate the above recommendation found that there are some other parameters which need also to be considered, such as the width of brick units, the effective wall thickness, the ratio of clear height to span of wall panel. Furthermore, for design purposes, it is suggested to put into consideration the crack state condition of walls due to seismic face loads. Abstract in Bahasa Indonesia : Dalam rangka mengantisipasi terjadinya beban muka akibat gempa kuat yang bekerja pada bidang dinding pengisi suatu struktur rangka, luas maksimum atau bentang bidang dinding perlu dibatasi seperti yang direkomendasikan dalam Pedoman Perencanaan untuk Struktur Beton Bertulang Biasa dan Struktur Tembok Bertulang untuk Gedung 1983. Namun, pembatasan ini tampak hanya bergantung pada wilayah gempa dan kondisi tanah dimana bangunan berada serta posisi tembok, apakah di lantai dasar atau puncak gedung dan apakah dinding terletak di dalam atau di sekeliling luar bangunan. Sebuah studi yang telah dilakukan untuk mengevaluasi kembali ketentuan pembatasan tersebut di atas menyimpulkan bahwa terdapat beberapa parameter lain yang seharusnya juga diperhitungkan, seperti lebar unit bata, tebal efektif dinding, rasio tinggi beban dinding terhadap lebar bentangnya. Di samping itu, untuk keperluan perencanaan diusulkan pula agar tahap kondisi retak dinding akibat beban muka diperhitungkan pula. Kata kunci: tembok pengisi, beban muka, tahap kondisi retak tembok
ALTERNATE PRICING STRATEGIES IN CONSTRUCTION Krishna Mochtar; David Arditi
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (44.295 KB) | DOI: 10.9744/ced.2.1.pp. 56-64

Abstract

Recent research findings on pricing strategies both in general and in construction are reviewed and explored. First%2C pricing strategy in general%2C mostly in the manufacturing industry%2C is reviewed. It includes the concepts of pricing strategy%2C predatory pricing%2C price wars%2C and price policy development. Second%2C pricing strategy in construction is explored. It includes various pricing models for bid price determination%2C such as the Friedman-Gates models%2C expected utility models%2C risk-pricing model%2C and the crew-day%2C multiple regression%2C and fuzzy-set pricing models. In conclusion%2C pricing strategies in construction are still predominantly based on a cost-based approach. More recent models try to close the gap between the models and the real life conditions of a bidder%5C%27s decision-making process. It appears that there are more problems in cost-based pricing as opposed to market-based pricing. Consequently%2C it is highly recommended that%2C alternative pricing approach such as that are closer to the proposed market-based pricing model need to be explored and developed for use in the construction industry. Abstract in Bahasa Indonesia : Pricing+strategy%2C+cost-based+pricing%2C+market-based+pricing.
PENGUKURAN KADAR AIR AGREGAT DAN BETON SEGAR DENGAN MENGGUNAKAN MICROWAVE OVEN Gideon Hadi Kusuma; Handoko Sugiharto
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (115.971 KB) | DOI: 10.9744/ced.2.1.pp. 22-36

Abstract

The conventional method of water content measurement of aggregate and fresh concrete need along time to perform. As an alternative the use of microwave oven is explored in this research. The microwave oven used has 900 watt power and equiped with a turn table. Nine (9) type of aggregate consist of five (5) type of fine aggregate and four (4) type of coarse aggregate with varions water absorbsion value, are unvestigated. The rater contents measured is then compared with the once obtained using conventional oven. Four (4) type of mix using aggegate with varions water absorbsion values. Water content used for the fresh concrete mix is 0.3, 0.5 and 0.7. The test results show that this method can beused to measure water content of fine and coarse aggregate regardless of the water absorbsion values of the aggregates. For fine aggregate nine (9) minutes drying time is needed to get 100% accuracy while for coarse aggregate 11 minutes with 96% accuracy. For fresh concrete using aggregate with less than 5% absorbsion value 18 minutes is neede to get 98% accuracy, while for aggregate with 40% absorbsion value 35 minutes is needed to get 80% accuracy. Abstract in Bahasa Indonesia : Pengukuran kadar air pada agregat dan beton segar dengan metode konvensional memerlukan waktu yang cukup lama, maka dilakukan penelitian penggunaan microwave oven sebagai metode alternatifnya. Microwave oven yang digunakan mempunyai daya 900 watt dan dilengkapi dengan piring putar. Dilakukan penelitian terhadap 9 tipe agregat (5 jenis agregat halus dan 4 jenis agregat kasar) dengan berbagai nilai absorpsi. Sedangkan untuk beton segar dibuat 4 macam campuran dengan berbagai nilai absorpsi agregat. Faktor air-semen yang digunakan adalah 0.3, 0.5 dan 0.7. Hasil pengukuran kadar airnya dengan microwave oven dibandingkan terhadap oven standard. Hasil tes yang diperoleh menunjukkan bahwa metode ini dapat digunakan untuk mengukur kadar air agregat halus dan kasar dengan tidak tergantung pada nilai absorpsinya. Untuk agregat halus dibutuhkan waktu pengeringan selama 9 menit dengan ketelitian 100%, untuk agregat kasar selama 11 menit dengan ketelitian 96%. Untuk beton segar dengan agregat yang nilai absorpsinya di bawah 5% selama 18 menit dengan ketelitian 98%. Untuk beton segar dengan agregat yang nilai absorpsinya 40% dibutuhkan waktu 35 menit dan hasil yang dicapai hanya sanggup mengukur kadar air total, rata-rata sebesar 80% dari total kandungan air dari beton segar yang diukur.
PERHITUNGAN STRUKTUR BAJA DENGAN METODE LRFD DENGAN CONTOH BATANG TARIK DAN TEKAN Oentoeng Oentoeng
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (87.509 KB) | DOI: 10.9744/ced.2.1.pp. 71-76

Abstract

Abstract in Bahasa Indonesia : Untuk menyambut akan diberlakukannya peraturan baja yang baru, yang menggunakan cara perhitungan LRFD (Load Resistance Factor Design), dimuat beberapa contoh soal yang dibuat oleh Ir. Oentoeng.
A RATIONAL BUCKLING MODEL FOR THROUGH GIRDERS Hasan Santoso
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.031 KB) | DOI: 10.9744/ced.2.1.pp. 37-42

Abstract

Buckling of a through girder generally is predicted by the so called U-frame approach which treats the compressed top flanges as compression members restrained elastically by the web stiffness. This study used a line-type finite element analysis to examine buckling behaviour of through girders, both a single span girder and a continuous girder. The elastic buckling loads were plotted for a range of span to height ratio.
THE LIFE CYCLE ASSESSMENT - A CASE STUDY OF TRANSPORTING VOLVO CARS Gloria P. Gerilla
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (100.942 KB) | DOI: 10.9744/ced.2.1.pp. 49-55

Abstract

The increase in the number of vehicles in our society is detrimental to the environment because of increased fuel usage and pollutant emissions. This paper analyze the environmental effects of transporting cars from its manufacturer to its end user. The method used is the life cycle assessment (LCA). Life cycle assessment is a method for analyzing and evaluating environmental performance of products, processes or services throughout its entire life cycle. The paper also shows the effect of changing the fuel type used in transporting the vehicles. It can be seen that from the pollutant emissions in the transport chain, carbon dioxide and nitrogen oxides are the leading pollutants, which affect the air quality in the environment. The truck is shown to be a heavy polluter in terms of its emission factors and there is not much difference between a European and an Asian country. With the use of the natural gas as an alternative fuel, emission levels can be reduced to as much as 19 % for CO2 and 16 % for NOx emissions while costs are higher in the first few years because of conversion costs, it can be said that it is worth the risk. The truck can be an environmentally adapted vehicle if its engine is converted to an alternative fuel engine like the compressed natural gas. The LCA methodology is holistic because it gives a systems analysis of the product
DATA COLLECTION METHOD FOR PEDESTRIAN MOVEMENT VARIABLES Kardi Teknomo; Yasushi Takeyama; Hajime Inamura
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (419.034 KB) | DOI: 10.9744/ced.2.1.pp. 43-48

Abstract

The need of tools for design and evaluation of pedestrian areas, subways stations, entrance hall, shopping mall, escape routes, stadium etc lead to the necessity of a pedestrian model. One approach pedestrian model is Microscopic Pedestrian Simulation Model. To be able to develop and calibrate a microscopic pedestrian simulation model, a number of variables need to be considered. As the first step of model development, some data was collected using video and the coordinate of the head path through image processing were also taken. Several numbers of variables can be gathered to describe the behavior of pedestrian from a different point of view. This paper describes how to obtain variables from video taking and simple image processing that can represent the movement of pedestrians and its variables
PENERAPAN MANAJEMEN MUTU TERPADU PADA MATAKULIAH DI JURUSAN TEKNIK SIPIL Paulus Nugraha
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (36.709 KB) | DOI: 10.9744/ced.2.1.pp. 65-70

Abstract

Paper ini dimulai dengan aplikasi Manajemen Mutu Terpadu di perguruan tinggi, terutama di jurusan Teknik Sipil, dan terfokus pada aspek pembelajaran. Kualitas pendidikan tidak dapat ditunda sampai akhir semester. Upaya-upaya perbaikan mutu selayaknya dilakukan jauh lebih dini. Pola "Kuesioner Satu Menit" dan kelompok Gugus Kendali Mutu diterapkan pada satu matakuliah di Jurusan Teknik Sipil Universitas Kristen Petra pada tahun 1997. Hasil menunjukkan bahwa TQM sangat membantu dalam memperbaiki mutu pembelajaran. Dosen tahu bagian-bagian mana yang kurang jelas, dan segera dapat diperbaiki pada pertemuan berikutnya. Mahasiswa juga menjadi lebih siap dan lebih memberikan perhatian pada matakuliah. Mahasiswa menjadi lebih aktif dan berinisiatif dalam kegiatan kuliah, dan dalam bekerja berkelompok. TQM dapat memperbaiki kualitas kelas besar.
PERHITUNGAN LEBAR RETAK PADA BETON PRATEKAN PARSIAL DENGAN UNIFIED APPROACH Gideon Hadi Kusuma
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (792.136 KB) | DOI: 10.9744/ced.2.1.pp. 9-21

Abstract

In partially prestressed concrete, crack width is rarely calculated. The crack width was controlled only by limiting the steel stress. This paper introduced crack width calculations which has been developed in America (ACI). The calculations show that factor influencing crack width is not only the steel stresses, but there are some other variables. "Unified approach" is used to introduce design aids in the form of graphs and tables that can be used for partially prestressed, prestressed and reinforced concrete. Abstract in Bahasa Indonesia : Pada beton pratekan parsial, jarang dilakukan perhitungan lebar retak. Lebar retak dibatasi dengan melakukan pembatasan tegangan baja yang terjadi. Makalah ini memperkenalkan perhitungan lebar retak yang sudah dikembangkan di Amerika (ACI). Hasil perhitungan menunjukkan bahwa lebar retak tidak hanya dipengaruhi tegangan saja, tetapi juga variabel lainnya. Dalam paper ini dengan mengunakan prosedur perhitungan yang sama untuk beton pratekan, pratekan parsial maupun beton bertulang biasa (unified approach), dibuat dan diperkenalkan alat bantu berupa grafik dan tabel. Kata kunci: beton pratekan parsial, lebar retak, unified approach

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