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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 7 Documents
Search results for , issue "Vol. 3 No. 2 (2001): SEPTEMBER 2001" : 7 Documents clear
ALTERNATIF PEMAKAIAN STRUKTUR GABLE FRAME DENGAN MENGGUNAKAN BETON PRATEKAN PRACETAK Prasetio Sudjarwo
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (154.96 KB) | DOI: 10.9744/ced.3.2.pp. 75-79

Abstract

An alternative to a gable frame structural material is structural concrete, but the main problem is the big self-weight of concrete especially for a long span gable frame. Prestressed concrete that can resist bigger moment using smaller section can be used to overcome the self-weight problem. Other benefit of using prestressed concrete is its corrosion resistance and low maintenance cost. In this study 11 gable frames designed using steel are compared with the ones using precast prestressed concrete. The cost comparison shows that the precast prestressed concrete gable frames are cheaper than the steel gable frame. The advantage of precast prestressed concrete gable frame mainly comes from the cheap concrete material. Abstract in Bahasa Indonesia : Sebagai alternatif stuktur gable frame dapat dibuat dari beton struktural, tetapi masalah utama yang dihadapi adalah berat sendiri beton yang besar terutama untuk bentang yang besar. Pemakaian beton pratekan, yang mampu memikul momen yang lebih besar dengan penampang yang lebih kecil dapat mengatasi hal ini. Keuntungan lain dari beton adalah ketahanan terhadap korosi dan upah pemeliharaan yang rendah. Makalah ini membandingkan 11 buah struktur gable frame yang direncanakan dengan menggunakan baja dengan beton pratekan pracetak. Perbandingan harga yang dilakukan membuktikan bahwa struktur gable frame beton pratekan pracetak lebih ekonomis dibandingkan dengan struktur gable frame baja. Keuntungan yang didapatkan dari penggunaan beton pratekan pracetak adalah harga material beton yang jauh lebih murah dari baja.
POTENSI PEMAKAIAN KERIKIL PATERONGAN TORJUN DAN OMBEN DI PULAU MADURA UNTUK BETON STRUKTUR Julistiono Handojo; Handoko Sugiharto
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.351 KB) | DOI: 10.9744/ced.3.2.pp. 51-58

Abstract

The use of structural concrete in Madura increases with the development of the island, however coarse and fine aggregates which are used, mostly come from Jawa. This research explores the possibility of using the coarse aggregates from Madura taken from Paterongan, Torjun, and Omben. Although it is shown that in general the coarse aggregates are physically the same with aggregates from Mojokerto or Pasuruan and pass SNI, ACI, ASTM, and BS, only aggregate from Torjun pass the flakiness requirements. The fineness modulus of the aggregates do not pass SNI but pass the BS requirement. Using the aggregates in 225kg/cm2 concrete strength mix design fail to reach the target strength. Aggregates from Paterongan and Omben are only recommended for lean concrete, but there is a possibility to use aggregates from Torjun for structural concrete, with betterment in grading. Abstract in Bahasa Indonesia : Pemakaian beton di pulau Madura meningkat seiring dengan perkembangan pulau Madura tetapi agregat kasar dan halus yang digunakan untuk pembuatan beton masih banyak didatangkan dari pulau Jawa. Untuk melihat kemungkinan penggunaan krikil Madura sebagai agregat kasar beton, telah dilakukan penelitian kekuatan terhadap kerikil Madura yang berasal dari Paterongan, Torjun, dan Omben. Meskipun secara umum dapat dikatakan sifat-sifat fisik kerikil tersebut mendekati sama dengan kerikil dari Mojokerto atau Pasuruan dan memenuhi syarat SNI, ACI, ASTM maupun BS, hanya krikil dari Torjun yang memenuhi syarat kepipihan. Modulus kehalusan kerikil tersebut juga tidak memenuhi syarat SNI walaupun masih memenuhi syarat BS. Penggunaan kerikil Paterongan, Torjun, dan Omben untuk mix disain 225 kg/cm2 ternyata di bawah target yang diharapkan, sehingga kerikil Paterongan dan Omben direkomendasi hanya untuk beton rabat, sedangkan kerikil dari Torjun kemungkinan masih bisa digunakan untuk beton struktur dengan perbaikan gradasi.
APPLICATION OF LINEAR PROGRAMMING FOR DORMITORY DEVELOPMENT PLAN AT PETRA CHRISTIAN UNIVERSITY Connie Susilawati
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (116.647 KB) | DOI: 10.9744/ced.3.2.pp. 59-63

Abstract

Dormitory is a very important facility which have to be provided by a university. A survey to Petra Christian University’s students has been conducted to understand the required facilities and their financial ability. Linear programming has been used to calculate number of rooms and area of each facility which could satisfy the constraints and to obtain optimum profit. Number of bedrooms, number of bathrooms, and area of each facility, such as: living room, dining room, common room, cafeteria, book shop, mini market, phone booths, sport facilities, and parking space are recommended. Since the investment is financially feasible, the dormitory could be built in the future.
A REVIEW OF FACTORS AFFECTING BUILDING DEFECTS IN SINGAPORE Po Seng Kian
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (630.017 KB) | DOI: 10.9744/ced.3.2.pp. 64-68

Abstract

In developing countries, building maintenance technology is currently vastly underrated and ignored by owners, managers, and professionals. The building and construction authority of Singapore (BCA) has identified that the complaints about building defects have gone up in recent years with common problems such as leaky roof and walls, floor defect, and improper outlet pipe. This paper presents a brief description on building defect in use for commercial building as well as residential buildings in Singapore. The main objective is to highlight the important problems and suggest a greater participation of professionals in building maintenance. It also provides some site investigations photographs of various defects, which is expected to be useful for builders, architects, and others who deal with building materials.
DECISION MAKING MODELING OF CONCRETE REQUIREMENTS George Ilinoiu
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (272.519 KB) | DOI: 10.9744/ced.3.2.pp. 69-74

Abstract

This paper presents the results of an experimental evaluation between predicted and practice concrete strength. The scope of the evaluation is the optimisation of the cement content for different concrete grades as a result of bringing the target mean value of tests cubes closer to the required characteristic strength value by reducing the standard deviation. Abstract in Bahasa Indonesia : concrete+mix+design%2C+acceptance+control%2C+optimisation%2C+cement+content.
APLIKASI STATISTIK EKSTRIM DAN SIMULASI MONTE CARLO DALAM PENENTUAN BEBAN RENCANA PADA STRUKTUR DENGAN UMUR GUNA TERTENTU Wong Foek Tjong
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.749 KB) | DOI: 10.9744/ced.3.2.pp. 84-88

Abstract

Abstract in Bahasa Indonesia : Tidak banyak yasawan yang mengetahui bagaimana cara mendapatkan beban rencana dari data yang dimiliki. Makalah ini membahas penggunaan statistik ekstrim dan simulasi Monte Carlo untuk menentukan beban rencana untuk suatu umur guna tertentu. Diberikan pula beberapa contoh penggunaan kedua cara tersebut.
REDISTRIBUSI MOMEN PADA BALOK KOMPOSIT MENERUS DENGAN MEMPERHATIKAN PENGARUH MOMEN INERSIA NEGATIF Handoko Sugiharto; Hasan Santoso
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.127 KB) | DOI: 10.9744/ced.3.2.pp. 80-83

Abstract

Elastic analysis of continuos composite beams, assumes constant second moment of area constant over the length of the beam, giving hogging moment at internal supports higher than sagging moment at midspan. This certainly is not favorable because the contribution of concrete slab should be ignored in calculating moment resistance at the internal support. Where elastic analysis is used, alternative economic design is achieved with redistribution of moments from the internal support to the midspan. This paper considering the influence of negative moment inertia to moment redistribution shows that moment redistribution is influenced by the ratio of ultimate positive bending moment to positive bending moment capacity (Mu+/Mkap+). The smaller the ratio (Mu+/Mkap+) the bigger the allowed moment redistribution. Some graphs to calculate the amount of moment redistribution that can be allowed are also presented. Abstract in Bahasa Indonesia : Pada perencanaan balok komposit menerus secara elastis momen enersia sepanjang balok dianggap sama, sehingga momen negatif yang terjadi di daerah tumpuan lebih besar daripada momen positif yang terjadi di lapangan. Hal ini tidak menguntungkan karena kontribusi pelat beton pada daerah momen negatif tidak dapat diperhitungan. Salah satu alternatif untuk memperoleh desain yang lebih menguntungkan dilakukan dengan redistribusi momen dari daerah tumpuan ke daerah lapangan. Makalah ini dengan memperhatikan pengaruh momen inersia negatif terhadap redistribusi momen, menunjukkan bahwa besar redistribusi momen yang dapat dilakukan dipengaruhi oleh rasio momen ultimate positif yang terjadi sebelum redistribusi (Mu+) terhadap kapasitas momen lentur positif penampang (Mkap+). Makin kecil rasio (Mu+/Mkap+) makin besar redistribusi yang dapat dilakukan. Tulisan ini juga menyajikan alat bantu berupa grafik untuk menentukan besarnya redistribusi momen.

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