Bangunan Gedung/Bengkel Teknik Konstruksi dan Perumahan (TKP/BKP) di SMKN 2 Samarinda merupakan salah satu bangunan sekolah yang cukup tua, yaitu usia ± 38 tahun. Gedung workshop ini digunakan sebagai ruang kelas, ruang praktek dan ruang administrasi, dengan ± 75 orang melakukan kegiatan setiap harinya. Di dalam gedung bengkel terdapat beberapa mesin mekanik praktis, yaitu bar bander dan jeruji pemotong besi-beton, serta tempat menyimpan beton dan bahan-bahan praktis lainnya. Pada waktu-waktu tertentu bengkel juga digunakan sebagai tempat kegiatan yang cukup besar, seperti pertemuan orang tua dan komite sekolah yang melibatkan lebih dari 200 orang. Hal ini menimbulkan kekhawatiran bagi Kepala Sekolah dan Instruktur tentang keselamatan pengguna bangunan karena kondisi bangunan sudah banyak mengalami kerusakan pada elemen strukturnya.Dengan latar belakang tersebut, kami ingin membantu mengatasi permasalahan yang dihadapi mitra dengan melakukan evaluasi terhadap TKP/ gedung bengkel BKP. Dengan tim yang memiliki keahlian struktur dan manajemen akan berusaha memberikan rekomendasi dan solusi penguatan struktur yang dapat menjadi acuan bagi pemangku kepentingan dalam pengambilan kebijakan penanganan permasalahan di gedung bengkel TKP/BKP. Dari hasil kajian diketahui bahwa gedung bengkel TKP SMK 2 Samarinda dikategorikan rusak berat. Untuk mencegah jatuhnya korban jiwa, perlu dilakukan perkuatan bangunan baik pada kolom, balok maupun dindingnya.   The construction and housing engineering workshop building/construction and housing business (TKP/BKP) at SMKN 2 Samarinda is one of the school buildings that is quite old, aged ± 38 years. This workshop building is used as a classroom, practice room and administration room, with ± 75 people doing activities every day. Inside the workshop building, there are several practical mechanical machines, namely bar banders and iron-concrete cutter bars, as well as a place to store concrete and other practical materials. At certain times the workshop is also used as a place for quite large activities, such as a meeting of parents and school committees involving more than 200 people. This raises concerns for the Principal and Instructors about the safety of building users because the condition of the building has suffered a lot of damage to its structural elements.With this background, we want to help solve the problems faced by partners by evaluating the TKP / BKP workshop buildings. With a team that has structural and management expertise, they will try to provide recommendations and solutions for strengthening structures that can be a reference for stakeholders in making policies on handling problems in the TKP/BKP workshop building. From the results of the study, it was found that the TKP SMK 2 Samarinda workshop building was categorized as heavily damaged. To prevent casualties, it is necessary to strengthen the building both on the columns, beams and walls.

The need for housing is very rapid, especially the type of house growing with several choices of area, namely types 21, 27, 36, 45 to 120m2. In the growing house will be provided land for homeowners to develop the house so it is more feasible. The concept of housing provided by the developer is sometimes incompatible with the concept of utilizing natural lighting because it only emphasizes attractive design and number of units. For this reason, it is necessary to provide a reference for homeowners as a strategy to renovate buildings facing the west so that the utilization of natural lighting remains optimal and meets the measurement of comfort visually. The study will analyze the average lux value or Daylight Levels avarage of natural lighting resulting from the amount of light openings. The analysis will be done is the average value of natural lighting from the location strategy and the amount of light aperture in producing quality lighting in space. The kitchen room and family room are spaces with a high level of activity that require optimal lighting. The most optimal lighting level is the opening type of model 1 with 10% opening in the west, 10% opening in the roof, and 50% in the east. The resulting lighting level is 998.58 lux in clear sky conditions and 849 lux overcast conditions.

Proyek Jalan Tol Balikpapan - Samarinda mengaplikasikan jembatan dengan sistem beton prategang. Salah satu pekerjaan penting yang dilakukan pada beton prategang yaitu proses pemberian tegangan (stressing). Pemberian tegangan pada beton prategang mengakibatkan kehilangan gaya prategang yang harus dipertimbangkan pada perencanaan. Secara teori metode stressing pada beton pascatarik dapat dilakukan dengan metode satu arah (single stressing) dan metode dua arah (double stressing). Tujuan penelitian ini dilakukan untuk mengetahui perbandingan nilai kehilangan prategang pada jembatan beton prategang akibat metode satu arah (single stressing) dan metode dua arah (double stressing). Jenis girder yang digunakan pada penelitian ini adalah PC I girder dengan bentang span 25,80 m dan 16,80 m. Dari hasil analisis didapatkan kehilangan prategang terbesar akibat metode penarikan satu arah adalah sebesar 25,03% untuk bentang 25,80 m dan sebesar 27,18% untuk bentang 16,80 m. Sedangkan kehilangan prategang terbesar akibat metode penarikan dua arah sebesar 17,22% untuk bentang 25,80 m dan sebesar 24,12% untuk bentang 16,80 m. Perbandingan kehilangan prategang akibat metode penarikan satu arah dan metode penarikan dua arah adalah sebesar 7,81% untuk bentang 25,80 m dan sebesar 3,06% untuk bentang 16,80 m. Dapat disimpulkan metode penarikan satu arah menghasilkan kehilangan prategang lebih besar daripada metode penarikan dua arah.

The cantilever concrete beam is a beam made of concrete that is only supported or clamped at one end and the other end free or without the pedestal. The measure to which a structural member gets deviated from the initial position is called deflection. All the internal forces of cantilever beam serve to hold all the external forces due to the load so that the structure remains balanced. While the beam gets deflected under the loads, bending occurs in the same plane due to which stresses are developed. From the moment balance formula after integrated and solved with required boundary conditions, we get the downward deflection of beam. Fuzzy logic provides an inference structure that enables appropriate human reasoning capabilities. FIS (Fuzzy Inference System) is a system that processes the mapping formulation of a given input to produce an output using Fuzzy Logic. By using randomized data for all the variables of deflection formula within their respective ranges as training data, the FIS will be able to predict deflection of cantilever concrete beam after going through the training process adaptively.