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All Journal Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) VISA: Journal of Vision and Ideas JURNAL MULTIDISIPLIN ILMU AKADEMIK Jurnal Ilmiah Nusantara Jurnal Agregate Jurnal Penelitian Multidisiplin Bangsa LITERA: Jurnal Ilmiah Multidisiplin
Lewakabessy, Godfried
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Kajian Struktur Rangka Batang Jembatan Wailola Besar Kabupaten Seram Bagian Timur Laipeny, Fredrik Hendrik; Lewakabessy, Godfried; Roberth, Herry Henry
VISA: Journal of Vision and Ideas Vol. 4 No. 3 (2024): VISA: Journal of Vision and Ideas
Publisher : IAI Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/visa.v4i3.4934

Abstract

The Wailola Besar Bridge, which is located in Bula District, East Seram Regency, has a Warren truss type frame structure. However, unlike the truss used on other bridges, the truss on the Wailola Besar bridge has a larger size than the others. Because the span of the Wailola Besar bridge is 80 m, while the span of other bridges using the Warren truss type is a maximum of 60 m. The larger size than the other trusses makes the Wailola Besar bridge have a different truss from other trusses. The length of each horizontal bar is 6.65 m, while the maximum length for other bridges is 5 m. Then the purpose of this study is to determine whether the truss structure of the Wailola Besar bridge is capable of carrying the loads acting on the bridge, the method used is with the help of the SAP-2000 program to determine the truss forces then controlled with allowable voltage. In order to know whether the structure is able to withstand the forces acting. From the results of calculations with the help of SAP-2000 the rod forces acting on the largest truss structure are 11066.881 KN at constant loading and 12222.547 KN at temporary loading and the stress that occurs is 1742.82 Kg/〖cm〗^2. at constant loading and 1924.81 Kg/〖cm〗^2. The stress that occurs in the truss does not exceed the allowable stress.
OPTIMALISASI STRUKTUR RANGKA BATANG JEMBATAN WAY MAMUA KABUPATEN MALUKU TENGAH Aloon, Pedro; Frans, Pieter Lourens; Lewakabessy, Godfried
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1376

Abstract

The truss structure of the bridge is formed from several arrangement of rod elements which are connected by joint joints at the point of connection. The actual conditions in the field on the main frame structure of the Way Mamua bridge, Leihitu District, Central Maluku Regency, have dimensions of the steel cross-section that are quite large and not optimal, so that in this present study aims to analyze the rod forces of the Way Mamua Bridge structure and optimize the cross-sectional dimensions of the Way Mamua Bridge trunk frame. The methods used in this study are the ritter and cremona methods, as well as cross-sectional optimization simulations using the help of the SAP2000 program. Loading Standards for Bridges based on SNI 1725:2016 and Steel Structure Planning Standards for Bridges are used by SK regulations. SNI T-03-2005. Based on the results analysis of the rod forces of the Way Mamua Bridge structure, a minimum bar force was obtained for the upper horizontal bar, the lower horizontal bar and the diagonal bar totaling 2 bars. The maximum bar force for the upper horizontal bar is 1 bar, while the lower horizontal bar and diagonal bar are 2 bars with accepted forces namely compressive and tensile forces. The optimization results obtained an increase in the percentage of cross-sectional dimensions to the cross-sectional area for the upper horizontal bar by 2%, the lower horizontal bar and diagonal bar experienced a percentage reduction of 64% and 54% of the cross-sectional dimensions under actual conditions in the field. From the optimization results, the voltage ratio is not > 1 so that it can be concluded that the bridge bar truss structure is still in safe condition.
PERENCANAAN DINDING PENAHAN TANAH UNTUK MENANGGULANGI KELONGSORAN PADA RUAS JALAN HUTUMURI KECAMATAN LEITIMUR SELATAN Soumahu, Valentino; Lewakabessy, Godfried; Latar, Sjafrudin
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1509

Abstract

Retaining walls serve the purpose of withstanding lateral pressure from the soil behind them. This construction can be considered as an alternative for addressing potential landslides along the embankment of Hutumuri village road. The aim of this research is to plan a retaining wall as one of the reinforcement alternatives for the embankment along the section of Hutumuri road from Station (STA) 1+200 to 1+270. The planning of the retaining wall along this road section begins with a soil stability analysis using the simple slice method. Subsequently, employing the Terzaghi method, the stability of the wall against soil pressure behind it is analyzed to prevent displacement and potential collapse during the construction of the retaining wall. Utilizing the Simple Slice method and Rankine's theory to assess the slope conditions and the construction of the retaining wall along Hutumuri road section, values for the slope safety factor are obtained. In the unsafe condition, the slope safety factor is less than 1.2, indicating the need for an alternative slope reinforcement, such as a retaining wall. The analysis results for the stability of the Counterfort-type retaining wall indicate that it does not meet the requirements. This is due to the fact that, in section I, the soil bearing capacity safety factor (FS) is 2.454, where the value of FS is less than the recommended value of 3, signaling the need for further consideration and potential adjustments in the design.
ANALISIS FAKTOR PENYEBAB DAN PENANGGULANGAN KERUSAKAN RUAS JALAN BURIA-RIRING KABUPATEN SERAM BAGIAN BARAT Makaruku, Richard; Talakua, Elisabeth; Lewakabessy, Godfried
Journal Agregate Vol. 2 No. 2 (2023): September
Publisher : Jurusan Teknik Sipil

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/ja.v2i2.1717

Abstract

The Buria-Riring Road section is located in Taniwel District, West Seram Regency, Maluku Province. This road section was built in 2019. However, in the middle of 2021 this road experienced damage. The topographic condition of the road section is in the mountains with many hills and slopes, plus the high level of rainfall means that rainwater that falls directly floods the road body and damages the pavement structure. With this condition, people no longer feel comfortable accessing this road. The purpose of this study is to determine the type of damage that occurs and what factors cause the damage, as well as find solutions to overcome the damage that occurs in the form of planning pavement thickness and planning drainage channel dimensions. The method used for planning the thickness of the flexible pavement is the 2017 Pavement Design Manual and calculating the dimensions of the drainage channels. From the results of the analysis, the type of damage that occurs is the release of grains (Raveling) and the causative factors are not built drainage channels and the carrying capacity of subgrade soils that are less stable. From the calculation results, it is obtained that the thickness of the stabilized subgrade is 175 mm, the aggregate base layer for class B is 100 mm, the base layer for class A aggregate is 200 mm, the burda with an aggregate size of at least 20 mm. And from the results of the calculation of the dimensions of the drainage channel, it is obtained that the width of the base of the channel is 55 cm, the width of the top of the channel is 90 cm and the depth of the channel is 75 cm.
Analisis Dinding Penahan Tanah Pada Ruas Jalan Sumeith Pasinaro – SP Watui Kabupaten Seram Bagian Barat Rifki, Rifki; Lewakabessy, Godfried; Tahya, Hendrie
Jurnal Penelitian Multidisiplin Bangsa Vol. 2 No. 7 (2025): Desember
Publisher : Amirul Bangun Bangsa Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpnmb.v2i6.644

Abstract

Ruas jalan Sumeith Pasinaro–SP Watui di Desa Sumeith Pasinaro, Kecamatan Elpaputih, Kabupaten Seram Bagian Barat, mengalami tiga titik longsor dengan kerusakan terparah pada STA 00+980, sehingga penelitian ini dilakukan untuk menentukan jenis dan desain dinding penahan tanah yang paling sesuai. Analisis menggunakan metode Rankine untuk tekanan tanah lateral dan metode Terzaghi untuk kestabilan daya dukung tanah, dengan pengujian laboratorium berdasarkan standar SNI meliputi kadar air, berat jenis, bobot isi, analisis saringan, batas Atterberg, dan pemadatan tanah. Hasil perencanaan menunjukkan bahwa dinding penahan tanah tipe kantilever dengan dimensi H = 7,0 m, B = 4,5 m, dan P = 22 m adalah yang paling tepat dan telah disesuaikan dengan kondisi longsor di STA 00+980. Stabilitas struktur dinyatakan aman dengan faktor keamanan terhadap gaya geser 2,03 dan gaya guling 3,08, serta daya dukung tanah Qult = 1522,618 yang jauh lebih besar dari Q maksimum 142,305.
STABILITAS DINDING PENAHAN TANAH RUAS JALAN WAISARISA SERAM BAGIAN BARAT Siahaya, Vera Theresia Caroline; Marantika, Giovianne Friensty; Lewakabessy, Godfried; Syahailatua, Elvira Cornelia
Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Vol. 12 No. 1 (2026)
Publisher : Himpunan Pengembangan Jalan Indonesia (HPJI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/0w2ed648

Abstract

Abstract Stability of a structure is a crucial aspect in structural design, as it determines its safety against various loads. This study conducted observations in Waisarisa Village, West Seram Regency, Maluku Province. At the study site, there are two retaining walls, each 7 m high, at STA 06+00 - 06+15 and STA 08+00 - 08+05. The first site is in good condition, while the second site was damaged by landslides following heavy rainfall. This study was conducted to analyze the stability of the retaining wall to determine its safety level and to use the results as a consideration in improving conditions at the study site. Based on the analysis, a retaining wall design was developed to address the problems at the study site: a cantilever retaining wall with dimensions of 7 m high, 1 m footing height, 0.3 m top width, 4.6 m base width, 1.5 m toe width, and 2.4 m heel width. Keywords: stability of the structure; retaining wall; structural safety; cantilever wall Abstrak Stabilitas konstruksi merupakan aspek terpenting dalam perancangan suatu struktur, karena menentukan keamanan struktur tersebut terhadap berbagai beban. Pada studi ini dilakukan pengamatan di Desa Waisa­risa, Kabupaten Seram Bagian Barat, Provinsi Maluku. Di lokasi penelitian terdapat 2 titik dinding penahan tanah dengan tinggi 7 m, yaitu pada STA 06+00 - 06+15 dan STA 08+00 - 08+05. Kondisi titik pertama masih baik, sedangkan kondisi di titik kedua mengalami kerusakan akibat longsor setelah curah hujan yang tinggi. Studi ini dilakukan untuk menganalisis stabilitas dinding penahan tanah, agar dapat diketahui tingkat keamanannya serta hasilnya dapat digunakan sebagai bahan pertimbangan dalam memperbaiki kondisi yang terdapat di lokasi studi. Berdasarkan hasil analisis yang dilakukan, diperoleh desain dinding penahan tanah untuk menyelesaikan permasalahan di lokasi studi, yaitu dinding penahan tanah tipe kantilever dengan dimensi tinggi 7 m, tinggi tapak 1 m, lebar atas 0,3 m, lebar dasar 4,6 m, lebar kaki 1,5 m, dan lebar tumit 2,4 m. Kata-kata kunci: stabilitas konstruksi; dinding penahan tanah; keamanan struktur; dinding kantilever
DAYA DUKUNG FONDASI TIANG BOR PADA ABUTMEN JEMBATAN WAI RAHWAEN DI PULAU BURU PROVINSI MALUKU Hamkah, Hamkah; Paais, Enjelita; Lewakabessy, Godfried; Huwae, David Daniel Marthin; Latar, Sjafrudin; Kakaly, Sulastri
Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Vol. 12 No. 1 (2026)
Publisher : Himpunan Pengembangan Jalan Indonesia (HPJI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26593/4spd2f69

Abstract

Abstract The foundation is the most crucial element of a bridge structure, as it plays a role in supporting the load and transmitting it to the harder soil layers. The Wai Rahwaen Bridge, located on Buru Island, Maluku Province, was built using bored pile foundations, to provide effective bearing capacity for the structure above it. The analysis of the foundation bearing capacity in this study was conducted using a pre- and post-installation approach. This is very important to ensure that the foundation can support the stability of the appropriate abutment load. Before the foundation was installed, the foundation bearing capacity was estimated based on data from 2 points from the Standard Penetration Test and using 2 empirical methods, namely the Reese and Wright Method and the Reese and O'Neill Method. After the foundation was installed, the foundation bearing capacity was determined using data from 4 points from the Pile Driving Analyzer test. The Reese and Wright Method produced an ultimate bearing capacity of 272.5 tons, while the Reese and O'Neill Method produced an ultimate bearing capacity of 309.4 tons. After the foundation was installed, the ultimate bearing capacity determined based on Pile Driving Analyzer test data was 316.2 tons. This study shows that the Reese and Wright Method and the Reese and O'Neill Method produced estimates of the ultimate bearing capacity of a single pile by 13.8% and 2.2%, respectively, when compared to the ultimate bearing capacity obtained using the Pile Driving Analyzer test results. Keywords: foundation; bridge structure; bearing capacity; bored pile foundation; bridge abutment Abstrak Fondasi merupakan elemen paling krusial dari struktur jembatan, karena fondasi berperan menahan beban dan meneruskan beban tersebut ke lapisan tanah yang lebih keras. Jembatan Wai Rahwaen, yang terletak di Pulau Buru, Provinsi Maluku, dibangun dengan menggunakan fondasi tiang bor, untuk memberikan daya dukung yang efektif bagi struktur di atasnya. Analisis daya dukung fondasi pada studi ini dilakukan dengan pendekatan sebelum dan setelah pemasangan fondasi. Hal ini sangat penting untuk dilakukan, untuk memastikan bahwa fondasi itu dapat menopang stabilitas beban abutmen yang sesuai. Sebelum fondasi dipasang, daya dukung fondasi diestimasi berdasarkan data 2 titik hasil uji Standard Penetration Test serta menggunakan 2 metode empiris, yaitu Metode Reese and Wright dan Metode Reese and O’Neill. Setelah fondasi terpasang, daya dukung fondasi ditentukan dengan menggunakan data 4 titik hasil uji Pile Driving Analyzer. Metode Reese and Wright menghasilkan daya dukung ultimit fondasi sebesar 272,5 ton, sedangkan Metode Reese and O’Neill menghasilkan daya dukung ultimit sebesar 309,4 ton. Setelah fondasi terpasang daya dukung ultimit yang ditentukan berdasarkan data uji Pile Driving Analyzer adalah sebesar 316,2 ton. Studi ini menunjukkan bahwa Metode Reese dan Wright serta Metode Reese dan O’Neill menghasilkan nilai estimasi daya dukung ultimate tiang tunggal yang lebih rendah, masing-masing 13,8% dan 2,2%, bila dibandingkan dengan daya dukung ultimate yang dihasilkan dengan menggunakan hasil uji Pile Driving Analyzer Kata-kata kunci: fondasi; struktur jembatan; daya dukung; fondasi tiang bor; abutmen jembatan
Co-Authors Aloon, Pedro Frans, Pieter L hamkah, hamkah Hattu, Glen Michell Huwae, David Daniel Marthin Kakaly, Sulastri Kaliky, Isnain Sah Laipeny, Fredrik Hendrik Latar, Sjafrudin Lawalata, Alexander Biondy Maitimu, Nexsien R Makaruku, Richard Marantika, Giovianne Friensty Mataheru, Afreldo Benjamin Metekohy, Selly Paais, Enjelita Paunno, Dionisius David Rifki Rifki, Rifki Roberth, Herry Henry Rumahlaiselan, Novalia Venesia Sahertian, Tommy Agustinus Sahupala, Azani Subhi Siahaya, Vera Th. C. Siahaya, Vera Theresia Caroline Sopacua, Michael Edwin Soumahu, Valentino Soumena, Rizki Samad Syahailatua, Elvira Cornelia Tahya, Hendrie Talakua, Elisabeth Tuanakotta, Abraham