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Analysis of the Bearing Capacity of Bore Pile Foundation on the C83 Suites Building Countruction Project in Cirebon Zuliyanto, Muhammad Dwi; Budirahardjo, Slamet; Rizani, Mohammad Debby
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 6, No 2 (2025)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v6i2.24614

In soil testing using sondir in the C83 Suites building construction project in Cirebon City, the lowest soil carrying capacity was found at the S-1 point. In this study, an analysis of the carrying capacity of a bore pile with a diameter of 40 centimeters with a depth of 12 meters was carried out to obtain a comparison of calculation results using three methods, namely the LCPC (Bustamante Gianeselli) method, the Schmertmann Nottingham method, and the Direct method. The results of the calculation using the LCPC method (Bustamante Gianselli) obtained Qu= 232,001 tons, Qa = 92,800 tons. Then using the Schmertmann Nottingham method, Qu= 301,764 tons was obtained, Qa = 120,705 tons. Meanwhile, using the Direct method, it was obtained at the S-1 point with Qu= 115,158 tons, Qa = 46,063 tons.

ANALISIS KARAKTERISTIK PARKIR PADA RUMAH SAKIT UMUM DAERAH KABUPATEN BREBES Sadewo, Wasis Aziz; Budirahardjo, Slamet; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 6, No 2: Desember 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v6i2.27914

The Brebes Regional General Hospital which is located on Jalan Jenderal Sudirman No.181 Pangembon, Brebes District, Brebes Regency is one of the hospitals managed by the Brebes Regency government with class B type. There is a problem with parking at the Brebes Regional Hospital, namely there is no balance between the number of parking spaces available with the number of visitor vehicles coming due to limited parking space. Therefore, this research was carried out with the aim of knowing the characteristics of parking. The data taken in this research is primary data in the form of vehicle volume and secondary data in the form of the number of parking spaces at Brebes Regional Hospital. Based on survey and analysis results, it is known that the highest parking volume was 769 motorbikes and 191 cars. The highest parking accumulation was 461 motorbikes and 70 cars. The highest parking index value is 131.7% for motorbikes and 116.7% for cars. The highest average parking duration was for motorbikes, 54.1 minutes and cars, 54.1 minutes. The highest turnover rate for motorbikes is 0.24 vehicles/lot/hour and cars are 0.05 vehicles/lot/hour. The largest dynamic capacity for motorbikes is 3261 units and cars are 574 units.

REDESIGN JEMBATAN SUNUT KABUPATEN SEMARANG MENGGUNAKAN STRUKTUR PELENGKUNG TIPE A- HALF THROUGH ARCH BRIDGE Rahmasari, Maria Asysyifa; Praptiningrum, Retno Dwi; Budirahardjo, Slamet; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 5, No 2: Desember 2024
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v5i2.21964

The Sunut Bridge is a bridge that crosses the Jragung River which connects Semarang Regency and Demak Regency. The initial planning for the Sunut Bridge used a prestressed concrete structure with a total length of the main bridge of 60 meters. This bridge is divided into 4 parts. From the author's assessment, the use of prestressed concrete structures with many pillars is considered to cause design waste and give the impression of stiffness to the bridge. Apart from that, seeing that the condition of the river during floods often brings flooding, thereby reducing the effective linear waterway of the river, a bridge construction was re-planned with minimal pillars using an arch structure. In this planning, the Sunut Bridge was re-planned to use a steel arch structure type A Half Through Arch Bridge. From the planning results, the vechile floor plat tickness was 23 cm. The longitudinal girder profile used is WF 800x300x16x30 and the cross girder profile WF 900x300x16x28. The next stage of calculating the primary and secondary structures is carried out by calculating the working loads which refer to SNI 1725:2016 and RSNI T-02-2005 regulations to obtain a box prifile for the main structure of the arch bridge.

ANALISIS PENGARUH TAMBAHAN KAPUR DAN SEMEN TERHADAP PEMADATAN DAN KUAT TEKAN TANAH SIGAR BENCAH Zakariya, Rifan; Fadillah, M. Sadam; Budirahardjo, Slamet; Rizani, Mohammad Debby
Jurnal Teknik Sipil Giratory UPGRIS Vol 6, No 1: Juni 2025
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v6i1.24100

The soil condition in Sigar Bencah, Semarang City, has characteristics that are less supportive of construction, such as cracks, low bearing capacity, and instability. This study aims to evaluate the effects of soil stabilization using lime and cement on soil compaction and unconfined compressive strength (UCS). The variations of lime and cement content used are 0%, 5%, 10%, and 15%, with lime and cement ratios of 30:70, 50:50, and 70:30. The tests conducted include physical property analysis, standard compaction, and UCS testing. The results of the study show a significant improvement in both UCS and optimal soil compaction after stabilization treatment. The optimal additive combination for improving soil quality was found at a 10% additive content with a 50:50 lime-to-cement ratio, which produced a UCS value of 14.2 kg/cm². This indicates that the use of lime and cement as stabilization materials can enhance soil strength and stability, making it suitable for use in construction in areas with poor soil conditions. This stabilization can also serve as a solution to increase soil bearing capacity, reduce potential damage, and improve soil performance in various construction applications.

ANALISA DESAIN PELEBARAN PERKERASAN LENTUR PADA JALAN WOLTER MONGINSIDI SEMARANG Trisno, Trisno; Tegar, Ais Anantatama; Husodo, Ibnu Toto; Budirahardjo, Slamet
Jurnal Teknik Sipil Giratory UPGRIS Vol 1, No 1: Juni 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.8528

Pembangunan gudang logistik Polres Lamongan, sebagai salah satu elemen infrastruktur publik, perlu dilakukan pengawasan dengan tingkat efisiensi yang tinggi untuk mendukung kebutuhan operasional kepolisian. Beberapa masalah operasional telah muncul yang menghambat penyelesaian tepat waktu. Salah satu masalah utama yang dihadapi adalah keterlambatan dalam pengiriman material yang sangat mempengaruhi kelancaran pekerjaan. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi keterlambatan dalam proyek pembangunan Gudang Logistik Polres Lamongan, dengan fokus pada peran kontraktor, supplier, konsultan, dan pemilik proyek. Melalui pendekatan kuantitatif, penelitian ini mengidentifikasi faktor-faktor internal dan eksternal yang dapat menyebabkan keterlambatan proyek konstruksi. Metode yang digunakan dalam penelitian ini meliputi analisis regresi linier berganda untuk menentukan hubungan antara variabel independen (lingkungan kerja, keterlambatan material, peralatan, tenaga kerja, dan perubahan desain) dengan keterlambatan pelaksanaan pekerjaan.Hasil penelitian menunjukkan bahwa faktor tenaga kerja memiliki pengaruh terbesar terhadap keterlambatan proyek, dengan nilai beta 0,455, diikuti oleh perubahan desain yang memiliki pengaruh positif meskipun kecil. Sementara itu, faktor lingkungan kerja, keterlambatan material, dan peralatan tidak menunjukkan pengaruh signifikan. Untuk mengatasi keterlambatan, penelitian ini merekomendasikan perbaikan dalam koordinasi antar pihak terkait, manajemen sumber daya yang lebih baik, dan perencanaan yang lebih matang. Penelitian ini memberikan wawasan yang penting untuk meningkatkan pengelolaan proyek konstruksi dan mencegah keterlambatan yang tidak terduga pada proyek-proyek serupa di masa depan.

Perencanaan Gedung Asrama Putra Universitas PGRI Semarang (Lokasi : Jalan Gajah Raya Nomor 40 Sambirejo Gayamsari Semarang) sandra, Susandra; Astiyani, Heni; Kristiawan, Agung; Budirahardjo, Slamet
Jurnal Teknik Sipil Giratory UPGRIS Vol 1, No 1: Juni 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i1.5425

Pembangunan gudang logistik Polres Lamongan, sebagai salah satu elemen infrastruktur publik, perlu dilakukan pengawasan dengan tingkat efisiensi yang tinggi untuk mendukung kebutuhan operasional kepolisian. Beberapa masalah operasional telah muncul yang menghambat penyelesaian tepat waktu. Salah satu masalah utama yang dihadapi adalah keterlambatan dalam pengiriman material yang sangat mempengaruhi kelancaran pekerjaan. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi keterlambatan dalam proyek pembangunan Gudang Logistik Polres Lamongan, dengan fokus pada peran kontraktor, supplier, konsultan, dan pemilik proyek. Melalui pendekatan kuantitatif, penelitian ini mengidentifikasi faktor-faktor internal dan eksternal yang dapat menyebabkan keterlambatan proyek konstruksi. Metode yang digunakan dalam penelitian ini meliputi analisis regresi linier berganda untuk menentukan hubungan antara variabel independen (lingkungan kerja, keterlambatan material, peralatan, tenaga kerja, dan perubahan desain) dengan keterlambatan pelaksanaan pekerjaan.Hasil penelitian menunjukkan bahwa faktor tenaga kerja memiliki pengaruh terbesar terhadap keterlambatan proyek, dengan nilai beta 0,455, diikuti oleh perubahan desain yang memiliki pengaruh positif meskipun kecil. Sementara itu, faktor lingkungan kerja, keterlambatan material, dan peralatan tidak menunjukkan pengaruh signifikan. Untuk mengatasi keterlambatan, penelitian ini merekomendasikan perbaikan dalam koordinasi antar pihak terkait, manajemen sumber daya yang lebih baik, dan perencanaan yang lebih matang. Penelitian ini memberikan wawasan yang penting untuk meningkatkan pengelolaan proyek konstruksi dan mencegah keterlambatan yang tidak terduga pada proyek-proyek serupa di masa depan.

ANALISIS PENGARUH SERBUK CANGKANG KERANG HIJAU SEBAGAI FINE AGREGAT TERHADAPKUAT TEKAN DAN KUAT LENTUR CAMPURAN BETON Setiawan, Yudi Wahyu; Septyawan, Bayu Adhy; Husodo, Ibnu Toto; Budirahardjo, Slamet
Jurnal Teknik Sipil Giratory UPGRIS Vol 1, No 2: Desember 2020
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v1i2.9449

Along with advances technology in the field of construction. Concrete was used in construction activities such as high-rise buildings, bridges and dams. Concrete was defined as a composite material with the main constituent of fine aggregates, coarse aggregates, cement, and water. So much green seashells waste that made us interested to observe the effect of replacing shellfish shell powder on concrete mixtures on compressive strength and flexural strength of concrete. The aim of this study was to analyze the compressive strength and optimum flexural strength of the concrete with variations in clamshell powder 5%, 10%, and 20% at the age of 14 and 28 days. The research was carried out by means of mix design, by making Standard 25 MPa concrete samples as controls, then making a variation of concrete samples with a mixture of fine aggregates of shell powder with a composition of 5%, 10%, and 20% of fine aggregate requirements. Cylinder samples are used (Ø = 15 cm, h = 30 cm) and beams (15 x 15 x 60 cm). The samples were compressive strength and flexural strength at 14 and 28 days. From the results of the study at the age of 14 days the average value of the compressive strength of standard concrete was 25.46 MPa, in the mixture of 5% the compressive strength was 25.55 MPa, the mixture of 10% was 29.504 MPa, the mixture of 20% was 27.1 Mpa. From these result was known that the greatest compressive strength is 10%. While testing the flexural strength of the specimens in the form of blocks with (15 x 15 x 60 cm). From the results of the 14 day age test the average value of the standard concrete flexural strength obtained was 33.55 kg / cm², mixture 5% flexural strength value 45.33 kg / cm², 10% mixture obtained 53.9 kg / cm², mixture 20% flexural strength value 60.759kg / cm²

PERENCANAAN STRUKTUR BAJA PADA BANGUNAN RUMAH SAKIT IBU DAN ANAK DI KABUPATEN TEGAL Saputra, Wisnu; Kamal, Sukron; Kristiawan, Agung; Budirahardjo, Slamet
Jurnal Teknik Sipil Giratory UPGRIS Vol 4, No 1: Juni 2023
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v4i1.16184

This thesis is planned in accordance with the regulations that apply to buildings including the Building and Structural Design Grading Regulations (SNI - 1727 -2013) Development Planning Guidelines for Houses and Buildings (PPPURG 1987) Procedures for Planning Steel Structures for Buildings (SNI-03) 1729-2015) Procedures for Planning Earthquake Resistance for Buildings (SNI 03 - 1726 - 2012) Procedures for calculating concrete structures for buildings (SNI 03-2847-2013). In this planning data analysis uses manual calculations assisted by excel and SAP 2000 v.14 programs and steel design calculations using the LRFD method. This plan uses a concrete roof plate with a thickness of 10 cm and a floor plate with a thickness of 12 cm. Calculation of columns and beams using SAP 2000 v.14 obtained column dimensions K1 = 350x350 K2 = 300x300 K3 = 250x250 and for BI = 350x175 and B2 = 300x150. In this plan, the foundation used is a mini pile foundation with a circular shape with a diameter of 40 cm, a depth of subgrade 7.2 m with a pile length of 6 m.Keywords: building regulations, SAP 2000 v.14

OPTIMALISASI KARAKTERISTIK TANAH SEDIMEN BENDUNGAN LEIS RANDUDONGKAL-PEMALANG AKIBAT VARIASI PENAMBAHAN CAMPURAN ASPAL EMULSI DAN FLY ASH Arianto, Lutfian Dikma; Ghofur, Abdul; Budirahardjo, Slamet; Husodo, Ibnu Toto
Jurnal Teknik Sipil Giratory UPGRIS Vol 3, No 1: Juni 2022
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v3i1.12834

Soil has physical and technical properties or what can be called physical properties and engineering properties. Soil conditions and characteristics in each area have different properties, as is the case with the problematic sedimentary soil of the Leis Randudongkal dam, Pemalang district, which has poor soil bearing capacity. The research conducted on the sediment soil of the Leis Randudongkal dam, Pemalang district, varied the mixture of sedimentary soil with a mixture of additives in the form of emulsified asphalt and fly ash . The percentage of mixing of additives is 0%, 5%, 10% and 15% with two ratios of additives, namely (75% emulsified asphalt + 25% fly ash) with a ratio of (25% emulsified asphalt + 75% fly ash) with physical properties and engineering properties. From the tests carried out, it shows the percentage of addition of additives that show increased soil characteristics, namely as follows; Specific gravity testing with the percentage of adding additives is 15% in a ratio (25% asphalt emulsion + 75% fly ash), Atteberg limit by reviewing the plasticity index occurs at the percentage addition of additives by 5% with a percentage ratio (75% emulsified asphalt + 25% fly ash), soil compaction testing using a due to a larger fly ash showing the optimum water content value that is not too large, then testing the soil development (swelling) using the addition of an additive percentage of 10% with a percentage ratio (25% emulsified asphalt + 75% fly ash), in the CBR test the percentage of additives added is 10% with a percentage ratio (25% emulsified asphalt + 75% fly ash).

PEMANFAATAN BATU BLONDOS SUNGAI LONING DESA MLUWEH KEC. UNGARAN TIMUR KAB. SEMARANG SEBAGAI SUBSTITUSI AGREGAT PADA CAMPURAN ASPAL POROUS Irfan, Misbakhul; Kusuma, Fiki Rifan; Budirahardjo, Slamet; Husodo, Ibnu Toto
Jurnal Teknik Sipil Giratory UPGRIS Vol 3, No 1: Juni 2022
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/giratory.v3i1.12852

Porous asphalt is an open graded mixture with a large percentage of coarse aggregate, a small percentage of fine aggregate, thus providing a large air void. Porous asphalt is an innovation to reduce standing water on the road surface. Porous asphalt has a low stability value but has a high permeability value caused by the large number of cavities in the pavement layer mix as a drainage system. Porous asphalt is used on roads that have low traffic. This study aims to determine the value of the permeability and strength of the material based on the Marshall criteria with aggregates sourced from Kakaskasen and regulated in the laboratory so that it has parameters of mixture composition as filler and 60/70 penetration asphalt as binder. The mix design is based on the aggregate composition in accordance with the gradation requirements (Asphalt Concrete-Wearing Course) or abbreviated as AC-WC and the approximate asphalt content is searched for a Marshall test object. The asphalt content was determined first using 60/70 penetration asphalt as a binder and a Marshall test object was made with 5 variations of blondos stone content and testing was carried out to obtain a permeability value where the water in the tube fell freely into the mold containing the test object at a certain height until it passed through the cavity. on the mix. The results showed that in the porous asphalt mixture, the best asphalt content was 4.7% with blondos stone content of 75%, the stability value was 870.1 mm, flow was 5.5 mm, VIM = 19.6%, MQ = 203.4 kg/mm, all the values of the Marshall criteria meet the specification limits. The results of the research showed that the permeability of porous asphalt was 0%; 0.48 cm/s , 25%; 0.81 cm/s, 50%; 0.60 cm/s, 75%; 0.34 cm/s, 100%; 0.63 cm/s, of all the asphalt permeability values that meet the limits of the specification criteria are 75% blondos stone mixture. Based on this research, it was found that the porous asphalt mixture using material sourced from the Loning River using a 60/70 penetration asphalt binder has a high stability value and has a high permeability value, but the mixture is still suitable for use on low-traffic road conditions. Thus, it is recommended for the porous asphalt mixture to do more research using different material sources and binders and further research is needed on marshall performance along with the effect of strength on the pavement mixture. Keywords: Porous Asphalt, Permeability, 60/70 Penetration Asphalt, Rounded Stone.

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