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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Jurnal Teknik Sipil Teras Jurnal Civil Engineering Dimension Dinamisia: Jurnal Pengabdian Kepada Masyarakat Journal of Engineering and Scientific Research (JESR) Journal of the Civil Engineering Forum Makara Journal of Technology Journal of Civil Engineering and Vocational Education Journal of Engineering and Technological Sciences

Ali Awaludin

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Author-ID : 237023

Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

Published : 17 Documents Claim Missing Document

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Evaluasi Kuat Tumpu Alat Sambung Baut pada Papan WPC dari Limbah Sengon dan Plastik HDPE Arnandha, Yudhi; Satyarno, Iman; Awaludin, Ali; Fardhani, Arfiati
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 2, DESEMBER 2016
Publisher : Department of Civil Engineering, Diponegoro University

Wood Plastic Composite (WPC) is wood based material that been produce by mixing sawdust as main composition and plastic polymer as bonding agent. Nowadays, WPC board already been produced in Indonesia using Sengon sawdust and recycle HDPE plastic. Sengon sawdust was used as WPC since its availability from plywood production waste, moreover HDPE plastic considered had higher strength and more rigid than PET plastic. WPC occasionally being used as non structural material, moreover from previous study about mechanical properties of WPC, it was found that WPC Sengon has high shear strength around 25 â€“ 30 MPa. These lead that WPC Sengon had a potential used as shear wall sheathing, thus additional research need to be conducted in order to study the type of bolt and diameter of the bolt can be used for these shear wall. This study aimed to investigate the dowel bearing of bolt using full hole method based on ASTM D5764 with type and bolt diameter as specimen variation. Two types of bolt were used in this study; stainless bolt and standard bolt with diameter each of 6 mm, 8 mm, 10 mm and 12 mm. According to ANOVA, there was insignificant result between stainless bolt and standard one, but there was significant result based on diameter of the bolt. Hereafter, it can be recommended the used of 10 mm diameter of bolt for structural purpose with dowel bearing strength around 67 â€“ 70 MPa.

Analisa Kekuatan Tahanan Lateral Pada Sistem Komposit LVL Kayu Sengon dan Beton Pracetak Tantisaputri, Intan Archita; Awaludin, Ali; Siswosukarto, Suprapto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 25, Nomor 2, DESEMBER 2019
Publisher : Department of Civil Engineering, Diponegoro University

LVL Sengon and concrete can be used to form a composite structure of the floor system. Connections between LVL Sengon and concrete on this composite floor system are the weakest part so that a majority of structural damages are concentrated at these joints. This study discusses the lateral resistance of lag screw joints in a composite system of LVL Sengon and precast concrete. The lateral joint resistance was evaluated through quasi-static loading upon double shear test specimens having two screws at every single shear. Variation of the specimens includes precast concrete compressive strength of 20.71 MPa and 25.29 MPa, screw diameter of 6 mm length 101.6 mm and 8 mm length 101.6 mm and 127 mm, and angle of lag screw axis against the wood fiber of 60Â° and 90Â°. The result shows that lateral resistance of the test is greater than that of EYM, SNI, and EC5 predictions. Joint failure in this experiment is due to failure in wood fiber along with the occurrence of one up to two plastic hinges in the screw.

Moment Resistance Analysis on Various Configuration of Multiple-Bolt Timber Connection Using Beam on Elastic Foundation Theory and Rigid Plate Assumption Awaludin, Ali
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 2, Edisi XXXII, JUNI 2005
Publisher : Department of Civil Engineering, Diponegoro University

Kayu merupakan bahan struktur yang masih banyak diminati, mungkin salah satunya karena nilai estetikanya yang belum dapat tergantikan. Untuk mendukung aplikasi Kayu dalam struktur yang lebih luas, maka sajian mengenai sambungan kayu perlu mendapat perhatian. Dalam paper ini disajikan hasil eksperimen mengenai momen tahanan sambungan kayu yang disambung dengan berbagai konfigurasi penyambung. Ada 4 (empat) konfigurasi sambungan yaitu 4H. 6H, 6V dan 6C. Dari hasil eksperimen, diperoleh bahwa jenis konfigurasi 6H menghasilkan momen tahanan yang paling kecil. Konfigurasi 6H ini juga mangalami kegagalan akibat geser.Kata kunci: momen tahanan, sambungan kayu, konfigurasi sambunganPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3909[How to cite: Awaludin, A., 2005, Moment Resistance Analysis on Various Configuration of Multiple-Bolt Timber Connection Using Beam on Elastic Foundation Theory and Rigid Plate Assumption, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 2, pp. 57-62]

Kajian dan Evaluasi Struktur Slab Prestressed Precast Modular Concrete Eratodi, I Gusti Lanang Bagus; Awaludin, Ali; Han, Ay Lie; Triwiyono, Andreas
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 1, JULI 2020
Publisher : Department of Civil Engineering, Diponegoro University

Prestressed precast modular concrete slabs function rigid pavement, supporting vehicle loads above it on subgrade with relatively low bearing capacity. This slab measures 2000 x 850 x 150 mm3 of regular reinforced concrete (old production) or prestressed concrete (new production) quality K-500. After several times of use, damage occurs mainly at the end of the slab in the form of spalling. The objectives of the study and evaluation were: (1) observing damage; (2) material quality data; (3) numerical modeling by taking into account material properties, loading and soil conditions; and (4) providing slab design recommendations including materials and geometrics. The method of study and evaluation of slab damage was done by observing the damage, taking concrete core-case and testing it in the laboratory, and modeling the slab structure with various parameters (soil data, concrete quality and slab geometry). Field observations and analysis results show that concrete slab spalling occurs initially at the edge (850 mm wide) which in turn causes the effectiveness of the pre-tension force to be suboptimal and finally the concrete spalling volume increases. Apart from the frequency of collisions during installation and slab deformation when supporting vehicle loads. Concrete spalling problems also due to inappropriate concrete quality.

Pengaruh Jarak Sekrup terhadap Kapasitas dan Perilaku Penampang Tersusun Boks (Closed Section) Baja Canai Dingin Making, Maria Yasinta Menge; Awaludin, Ali; Supriyadi, Bambang
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 2, DESEMBER 2020
Publisher : Department of Civil Engineering, Diponegoro University

The capacity and behaviour of cold-formed steel built-up sections are affected by the arrangement of the connections. ThisÂ study aims to determine the effect of the screw spacing to the bending capacity and behaviour of the cold-formed steel built-up box section which made from lipped-channel (1.0 mm thick, 81 mm web height, 8.5 mm lip height, upper and lower wing width 38 mm and 40 mm). A total of 19 beams with a length of 1200 mm each are subjected to pure bending moments by applying two point loads spaced 600 mm in the midspan. The screw spacing variations in the moment span are 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, 328 mm, and 350 mm. The test results show the average of bending capacity of the beam test is increasing with the reduction in screw spacing while the screw configuration also affects the beam capacity. Analysis of the bending capacity using the effective width method and the direct strength method based on AISI S100-16 gives very conservative results. The failure mode of the built-up box sections were observed in the form of local buckling, distortion, and lateral-torsional buckling.Â

Perilaku Rangka Open Web Truss Joist LVL Sengon Basuki, Achmad; Awaludin, Ali; Suhendro, Bambang; Siswosukarto, Suprapto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 27, Nomor 1, JULI 2021
Publisher : Department of Civil Engineering, Diponegoro University

Laminated Veneer Lumber (LVL) Sengon is classified as one of the engineering products having a significant increase of both physical and mechanical properties compared with Sengon solid wood. Considering its short planting years and sustainable production, Sengon wood is very potential to be used as construction materials of low-rise houses to support the housing needs in Indonesia. Creep behaviour of LVL Sengon material is one of the mechanical properties that needs to be considered. This article evaluated value of creep factor of the open web truss joist (OWTJ) LVL Sengon test and compared this experimental creep factor with the numerical results developed by FE model taking into account the viscoelastic parameters of authors' previous study. The viscoelastic parameters were based on a 217-day creep test of compression and tension parallel to the grain of LVL Sengon at 20 % of stress level that were further modeled using Prony series creep model having n equals to 3. The reduction in the modulus of elasticity over time resulted in creep deflection and creep factor values at 217 days of testing results and FE numerical analysis of the OWTJ LVL Sengon ranging from 1.50â€“1.54; while the predicted creep factor at 25 years of service life is 1.57 or greater than the creep factor value provided in SNI 7973: 2013 of 1.5.

Co-Authors Achmad Basuki Ahmad, Mohammad Ismail Ramadan Aminullah, Akhmad Andreas Triwiyono Arfiati FArdhani, Arfiati Ay Lie Han Ayun, Zaimah Qurrata Bambang Suhendro Bambang Supriyadi Darmawan, M. Fauzi Endita Prima Ari Pratiwi* Fatchan Nurrochmad Haroki, Yusuf Hassan, Rohana I Gusti Lanang Bagus Eratodi Iman Satyarno Irawati, Inggar Septhia Ismanti, Sito Mahmud Kori Effendi Making, Maria Yasinta Menge Md Nor, Noorsuhada Muhammad Akbar Neil Andika Ni Nyoman Nepi Marleni Niken Palaeowati Purnomo, Sidiq Saputra, Muhamad Dandy Harjunaseta Hadi Setiawan, Angga Fajar Siswokarto, Suprapto Sulhan, Muhammad Afif Sumartono, Ignatius Harry Suprapto Siswosukarto Tantisaputri, Intan Archita Tantri Nastiti Handayani TATI NURHAYATI Yudhi Arnandha

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