Civil Engineering Dimension最新文献_第10页

Derivation Of Moving Least-Squares Approximation Shape Functions And Its Derivatives Using The Exponential Weight Function 用指数权函数求导移动最小二乘逼近形函数及其导数

Civil Engineering Dimension Pub Date : 2007-04-03 DOI: 10.9744/CED.9.1.PP.

E. Tanojo

引用次数: 2

PENGARUH ELEKTROKINETIK TERHADAP DAYA DUKUNG PONDASI TIANG DI LEMPUNG MARINA 电动力学对滨水聚糖桩的支撑力的影响

Civil Engineering Dimension Pub Date : 2006-02-23 DOI: 10.9744/CED.8.1.PP.

Daniel Tjandra, P. S. Wulandari

{"title":"PENGARUH ELEKTROKINETIK TERHADAP DAYA DUKUNG PONDASI TIANG DI LEMPUNG MARINA","authors":"Daniel Tjandra, P. S. Wulandari","doi":"10.9744/CED.8.1.PP.","DOIUrl":"https://doi.org/10.9744/CED.8.1.PP.","url":null,"abstract":"Electrokinetics is one of soft ground improvement methods to improve its bearing capacity. The objective of this research is to investigate the increase of friction and end bearing resistance of an embedded instrumented model pile in marine clay after electrokinetics treatment. The initial geotechnical properties of soil surrounding the pile foundation is obtained by several soil laboratory tests. For pile bearing capacity analysis, friction and end bearing resistance of pile was measured by load cell measuring device, while un-drained shear strength analysis was measured by vane shear test. The result of this research showed that after 24 hours electrokinetics treatment, the un-drained shear strength increased closer to the pile, and the bearing capacity of pile increased 14 times. \u0000 \u0000 Abstract in Bahasa Indonesia : \u0000Elektrokinetik adalah salah satu metode perbaikan tanah lunak yang diaplikasikan untuk meningkatkan daya dukung tanah lunak. Tujuan dari penelitian ini adalah untuk menyelidiki peningkatan tahanan friksi dan ujung suatu model pondasi tiang di lempung marina setelah dilakukan proses elektrokinetik. Karakteristik tanah pada kondisi mula-mula di sekitar pondasi tiang didapatkan dari beberapa pengujian di laboratorium. Untuk analisa daya dukung tiang, tahanan friksi dan ujung dari pondasi tiang diukur dengan alat pengukur load cell, sedangkan analisa kuat geser undrained diukur dengan pengujian baling-baling. Hasil penelitian menunjukkan bahwa setelah pada tanah dilakukan proses elektrokinetik selama 24 jam, daya dukung dari pondasi tiang meningkat 14 kali dan semakin dekat dengan tiang, kuat geser undrained juga semakin meningkat.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"8 1","pages":"15-19"},"PeriodicalIF":0.0,"publicationDate":"2006-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71210320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

FAKTOR-FAKTOR PENYEBAB REWORK PADA PEKERJAAN KONSTRUKSI 施工工作的原因

Civil Engineering Dimension Pub Date : 2005-03-31 DOI: 10.9744/CED.7.1.PP.

Andi Andi, S. Winata, Yanto Handarlim

{"title":"FAKTOR-FAKTOR PENYEBAB REWORK PADA PEKERJAAN KONSTRUKSI","authors":"Andi Andi, S. Winata, Yanto Handarlim","doi":"10.9744/CED.7.1.PP.","DOIUrl":"https://doi.org/10.9744/CED.7.1.PP.","url":null,"abstract":"Rework cannot be separated from construction projects. The direct and indirect cost resulting from it are quite significant. This research aims to identify the causes of rework and to propose effective ways to reduce it. It is conducted using questionnaire, which was targeted to consultants and contractors in Surabaya. The results show that defective designs, changes in design, and coordination problems among design documents were the most influencing factors causing reworks. In order to reduce rework, the most effective ways according to the respondents are enhancing and improving communication and coordination among participants during design and construction phases, and also predicting and solving design problems before construction works begin. \u0000 \u0000 Abstract in Bahasa Indonesia : \u0000Rework tidak dapat dipisahkan dari dunia konstruksi. Dampak biaya langsung maupun tidak langsung yang diakibatkannya cukup signifikan. Penelitian ini bertujuan mengetahui penyebab utama dari rework dan juga memberikan cara yang efektif untuk menguranginya. Penelitian dilakukan dengan menggunakan kuesioner yang ditujukan kepada konsultan dan kontraktor di Surabaya. Hasil penelitian menunjukkan bahwa kesalahan dan perubahan desain, serta buruknya koordinasi antar dokumen desain adalah faktor yang utama penyebab rework. Untuk dapat mengurangi rework, cara yang paling efektif menurut responden adalah meningkatkan dan memperbaiki komunikasi dan koordinasi pada fase desain dan konstruksi, serta memperkirakan dan mengatasi masalah-masalah desain sebelum masuk ke fase konstruksi.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"7 1","pages":"22-29"},"PeriodicalIF":0.0,"publicationDate":"2005-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71210295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

APPLICATION OF PACKING THEORY ON GRADING DESIGN FOR POROUS ASPHALT MIXTURES 填料理论在多孔沥青混合料级配设计中的应用

Civil Engineering Dimension Pub Date : 2004-09-15 DOI: 10.9744/CED.6.2.PP.

Hardiman Hardiman

引用次数: 217

TINJAUAN TERHADAP PEMBATASAN DIMENSI TEMBOK PENGISI YANG MENERIMA BEBAN MUKA AKIBAT GEMPA 概述由地震引起的填充墙的尺寸限制

Civil Engineering Dimension Pub Date : 2004-06-02 DOI: 10.9744/CED.2.1.PP.

Takim Andriono, G. H. Kusuma

{"title":"TINJAUAN TERHADAP PEMBATASAN DIMENSI TEMBOK PENGISI YANG MENERIMA BEBAN MUKA AKIBAT GEMPA","authors":"Takim Andriono, G. H. Kusuma","doi":"10.9744/CED.2.1.PP.","DOIUrl":"https://doi.org/10.9744/CED.2.1.PP.","url":null,"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. \u0000 \u0000 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. \u0000 \u0000 \u0000Abstract in Bahasa Indonesia : \u0000Dalam 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. \u0000 \u0000Sebuah 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. \u0000 \u0000Kata kunci: tembok pengisi, beban muka, tahap kondisi retak tembok","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"2 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2004-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71210338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

POTENSI PEMAKAIAN KERIKIL PATERONGAN TORJUN DAN OMBEN DI PULAU MADURA UNTUK BETON STRUKTUR 马杜拉岛的托伦津和奥本在混凝土结构中使用的潜在的砾石使用

Civil Engineering Dimension Pub Date : 2004-06-02 DOI: 10.9744/CED.3.2.PP.

Julistiono Handojo, Handoko Sugiharto

{"title":"POTENSI PEMAKAIAN KERIKIL PATERONGAN TORJUN DAN OMBEN DI PULAU MADURA UNTUK BETON STRUKTUR","authors":"Julistiono Handojo, Handoko Sugiharto","doi":"10.9744/CED.3.2.PP.","DOIUrl":"https://doi.org/10.9744/CED.3.2.PP.","url":null,"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. \u0000 \u0000 Abstract in Bahasa Indonesia : \u0000 \u0000Pemakaian 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.","PeriodicalId":30107,"journal":{"name":"Civil Engineering Dimension","volume":"3 1","pages":"51-58"},"PeriodicalIF":0.0,"publicationDate":"2004-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71210353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

MODELLED MECHANISMS IN THE SLAKE-DURABILITY TEST FOR SOFT ROCKS 软岩滑坡耐久性试验的模拟机制

Civil Engineering Dimension Pub Date : 2004-06-02 DOI: 10.9744/CED.5.2.PP.

D. S. Agustawijaya

引用次数: 13