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Jurnal Teknik Sipil dan Perencanaan
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 25031899     DOI : https://doi.org/10.15294/jtsp
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil dan Perencanaan (JTSP) is a scientific journal which biannualy published in April and October. We firstly published in 1999 as national journal of Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Semarang. In 2016, JTSP was indexed in DOAJ with Green Tick critera. And in 2018, JTSP expands its range of article quality and publication through publishing English-language articles.
Arjuna Subject : -
Articles 774 Documents
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OPTIMALISASI KINERJA SIMPANG BERSINYAL BANGKONG KOTA SEMARANG Julianto, Eko Nugroho
Jurnal Teknik Sipil dan Perencanaan Vol 14, No 2 (2012): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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The position of the city of Semarang reviewed in national and regional strategic growth will have an impact that is local traffic as well as being large enough. Growth substantial traffic generating traffic flow should be assessed continuously so as not to cause a negative impact. Traffic flow is large enough without setting the appropriate traffic pattern would cause long delays and queues were quite long. Traffic patterns of a road we can see from the pattern setting which is at the intersection of the segment. The parameters studied include the number of vehicles coming out of each arm, current conditions and time of the signal. This analysis includes: basic saturation flow, traffic flow, cycle time, green time, capacity, degree of saturation and traffic behavior. Rated capacity of the intersection for the morning peak period in Simpang Kuhl has a value of 2171 pcu/hour to approach the direction of the straight east. Of the value of the degree of saturation at each approach that most had values> 0.800; especially in the morning to the east to the west and the evening to the west to the east. In the morning peak period the average intersection delay that occurred at 42.80 seconds/pcu. At peak times during the intersection delay by an average of 55.10 seconds/pcu. In the afternoon peak period with an average intersection delay of 45.47 seconds/pcu.Posisi kota Semarang ditinjau dalam skala nasional maupun regional sangat strategis akan menimbulkan dampak pertumbuhan lalu lintas yang bersifat lokal maupun menerus yang cukup besar. Pertumbuhan lalu lintas yang cukup besar menghasilkan arus lalu lintas yang harus dikaji terus menerus sehingga tidak menimbulkan dampak negatif. Arus lalu lintas yang cukup besar tanpa disertai pengaturan pola lalu lintas yang sesuai akan menyebabkan tundaan yang cukup lama dan antrian yang cukup panjang. Pola arus lalu lintas suatu ruas jalan dapat kita lihat dari pola pengaturan simpang yang berada pada ruas tersebut. Parameter yang diteliti meliputi jumlah kendaraan yang keluar dari masing-masing lengan, kondisi saat ini dan waktu sinyalnya. Analisis ini meliputi : arus jenuh dasar, arus lalu lintas, waktu siklus, waktu hijau, kapasitas, derajat kejenuhan dan perilaku lalu lintas. Nilai kapasitas simpang untuk waktu puncak pagi di Simpang Bangkong memiliki nilai sebesar 2171 smp/jam untuk pendekat timur arah pergerakan lurus. Dari nilai derajat kejenuhan pada masing-masing pendekat yang sebagian besar memiliki nilai > 0,800; terutama pada waktu pagi untuk arah timur ke barat dan waktu sore untuk arah barat ke timur. Pada waktu puncak pagi tundaan rata-rata simpang yang terjadi sebesar 42,80 detik/smp. Pada waktu puncak siang dengan tundaan simpang rata-rata sebesar 55,10 detik/smp. Pada waktu puncak sore dengan tundaan rata-rata simpang sebesar 45,47 detik/smp.
BENTUK DAN PROPORSI PADA PERWUJUDAN ARSITEKTUR VERNAKULAR BUGIS Sani, Andi Asrul; Supriyadi, Bambang; Rukayah, R.Siti
Jurnal Teknik Sipil dan Perencanaan Vol 17, No 2 (2015): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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This research lifting Vernacular Architectural Bugis with case studies Bola Soba State Watampone as part of the work of Duke ( King ). The issue building design process Bola Soba into focus through all proportions studys components constituent. Base his study , in addition to an understanding of the essence vernacular, the need of understanding also his tectonics, tradition ( build ) Architecture Bugis and rules proportion.the feel aesthetics in architecture is based on the elements and principles of design that can be explained rationally one of which is the principle of proportion. Leaning on his study approach: all characteristics of vernacular ( Bugis ) , visual and numerical portrait (measurement dimension ) objects. Images are visual and numerical reference database for reconstruction  groups object to the graphic data and figures. Analysis of calculation of the ratio  proportion to his assisted Software Microsoft Excel and SPSS ( Statistical Product and Service Solution). The findings of this research form the basic of the ratio of the amount used as a reference for comparison of the parts of the building detail in the building in the city of Bola Soba in Watampone. Proportion 1 : 1.23 with Sulapa Appa element and is believed to be the final findings as the basic for the size calculation of the proportion of the building Bola Soba. Implications of the findings could be early reference ( hypothesis ) , that the work of vernacular architecture Bugis embodiment has a basic size its design. Reference process is certainly still need to be explored with further research, including the work of other vernacular which created by the Duke / King Bugis. In historically, kingdom Bugis had been a formidable kingdom in his day which civilization has its own form of architecture heritage building. There are four great kingdoms that became the Bugis area is the kingdom of Luwu, kingdom of Bone, the kingdom of Soppeng and Wajo.Penelitian ini mengangkat Arsitektur Vernakular Bugis dengan studi kasus Bola Soba Kota Watampone sebagai wujud karya kalangan Bangsawan (Raja).Persoalan proses perancangan bangunan Bola Soba menjadi fokus telaah melalui ke-proporsi-an komponen-komponen pembentuknya.Dasar telaahnya, selain pemahaman tentang esensi ke-vernakular-an, perlu pemahaman pula sisi ke-tektonika-annya, tradisi (membangun) Arsitektur Bugis dan kaidah proporsi.Rasa estetika dalam arsitektur didasarkan pada elemen –elemen dan prinsip-prinsip perancangan yang bisa dijelaskan secara rasional salah satunya adalah prinsip proporsi. Pendekatan studinya bersandar pada : ke-ciri-an vernakular (Bugis), potret visual dan numerik (pengukuran dimensi) obyek. Potret visual dan numerik merupakan database rujukan untuk me-rekonstruksi-kan gugus obyek ke data grafis dan angka. Analisis perhitungan rasio ke-proporsi-annya dibantu perangkat lunak Microsoft Excel dan SPSS (Statistical Product and Service Solution). Temuan penelitian ini berupa besaran rasio dasar yang digunakan sebagai acuan perbandingan bagian-bagian detail bangunan dalam bangunan Bola Soba di Kota Watampone.Proporsi 1:1,23 dengan elemen Sulapa Appa menjadi temuan akhir dan diyakini sebagai dasar ukuran perhitungan proporsi dalam bangunan Bola Soba.Implikasi temuannya bisa menjadi referensi awal (hipotesis), bahwa perwujudan karya arsitektur vernakular Bugis memiliki dasar ukuran dalam proses perancangannya.Referensi ini tentunya masih perlu didalami dengan penelitian lanjutan, termasuk karya vernakular lain yang dikreasi oleh kalangan Bangsawan/Raja Bugis.Secara historis,kerajaan Bugis pernah menjadi kerajaan yang tangguh di zamannya memiliki peradaban tersendiri berupa peninggalan Arsitektur Bangunan.Ada empat kerajaan besar yang menjadi wilayah Bugis yaitu Kerajaan Luwu,Kerajaan Bone,Kerajaan Soppeng dan Wajo. This research lifting Vernacular Architectural Bugis with case studies Bola Soba State Watampone as part of the work of Duke ( King ). The issue building design process Bola Soba into focus through all proportions studys components constituent. Base his study , in addition to an understanding of the essence vernacular, the need of understanding also his tectonics, tradition ( build ) Architecture Bugis and rules proportion.the feel aesthetics in architecture is based on the elements and principles of design that can be explained rationally one of which is the principle of proportion. Leaning on his study approach: all characteristics of vernacular ( Bugis ) , visual and numerical portrait (measurement dimension ) objects. Images are visual and numerical reference database for reconstruction  groups object to the graphic data and figures. Analysis of calculation of the ratio  proportion to his assisted Software Microsoft Excel and SPSS ( Statistical Product and Service Solution). The findings of this research form the basic of the ratio of the amount used as a reference for comparison of the parts of the building detail in the building in the city of Bola Soba in Watampone. Proportion 1 : 1.23 with Sulapa Appa element and is believed to be the final findings as the basic for the size calculation of the proportion of the building Bola Soba. Implications of the findings could be early reference ( hypothesis ) , that the work of vernacular architecture Bugis embodiment has a basic size its design. Reference process is certainly still need to be explored with further research, including the work of other vernacular which created by the Duke / King Bugis. In historically, kingdom Bugis had been a formidable kingdom in his day which civilization has its own form of architecture heritage building. There are four great kingdoms that became the Bugis area is the kingdom of Luwu, kingdom of Bone, the kingdom of Soppeng and Wajo.
OVERURBANIZATION IN SEMARANG CITY Wilonoyudho, Saratri
Jurnal Teknik Sipil dan Perencanaan Vol 13, No 2 (2011): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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The economic growth in Semarang has resulted in bad impact of degradation the environment, traffic jams, increasing informal sectors and unemployment, crimes, and various social-politic conflicts. From this phenomenon, it is suspected that Semarang is undergoing overurbanization, that is the imbalance between population and economic growth.           From the result of research, it can be concluded that the main determinant of urbanization process in Semarang is the prolonged capitalization from colonial era. However, it not industrialization that develops, but informal sectors and service sectors. The impact is the city involution because as if the new employees can never participate in informal sectors. As a result, the Semarang City Government must mobilize non-producing resources to finance creating and organizing the needed service for high concentration of population under low standard of industrialization. In other words, Semarang and the hinterland are indeed undergoing “de-industrialization”. Industrial and agricultural sectors decreases their role, and on the other hand the service sector increases. In those areas, urbanization tends to occur with a spreading pattern characterized by high rate of population in urban areas like in regencies surrounding Semarang. The economic growth in those areas does not depend on the core city, Semarang, so that the level of advanced primate city has been passed through. The suggestions proposed are that the megapolitan issues has been reached, thus the things that need to consider in megaregional tendency. The regencies in the hinterland are proven “to balance’ the global capitalism, apart from wether the growth of enterpreunership innovation is accompanied by significant increase of welfare. This means that things need further attention is to manage the relationship between locality and production system and global economic in those ares to make people welfare and prevent people to migrate to other big cities. 
PEMODELAN KETERSEDIAAN AIR UNTUK PERENCANAAN PENGENDALIAN BANJIR KALI BLORONG KABUPATEN KENDAL Setyowati, Dewi Liesnoor
Jurnal Teknik Sipil dan Perencanaan Vol 10, No 2 (2008): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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At centered of Blorong watershed happened switching function of farm run quickly, towards to form of setlement area, causes happened improvement of floods at downstream Kali Blorong. Making base concept of water availability model is water balance. Software yielded in the form of KTSAIRDAS.EXE is made with program delphi version 7. Result of examination shows relationship enough signifikan between debits result of model with result of measurement in field. Test value t-tes shows value t-model 0,97 bigger than t-table 0,576, told model applicable to analyse water availability in Blorong watershed by doing simulation. Debit ratio value yielded from various alternative of land uses shows smallest debit ratio value at first alternative 27,64. The biggest ratio value at alternative of 3 is 28,48. Although result of debit ratio in Blorong watershed still at tolerance threshold boundary, but current debit Kali Blorong has value to range from 27,64 to 28,48 closing stall number. Degradation of ratio is not followed with improvement of farm production rate. Evaluated from aspect produce of farm, hence composition of farm wide in the form of reduction of area of rice field and garden, can reduce debit ratio but produce of farm declines.DAS merupakan suatu ekosistem yang memiliki kekomplekan variabel, untuk mempermudah dalam melakukan analisis sistem maka diperlukan pemodelan. Pemodelan dapat menyederhanakan sistem dengan tetap mempertahankan karakteristiknya. Model ketersediaan air disusun dalam rangka  melakukan upaya perencanaan pengelolaan DAS, dinamakan software model KTSAIRDAS. EXE. Pengujian model secara grafis dan uji statistik menunjukkan bahwa terdapat hubungan cukup signifikan antara debit hasil model dengan hasil pengukuran lapangan. Model dapat digunakan untuk analisis ketersediaan air suatu DAS dengan melakukan simulasi berbagai alternatif penggunaan lahan. Nilai rasio debit Kali Blorong berkisar antara 27,64 sampai 28,48 mendekati angka kritis. Berdasarkan aspek produksi lahan, pengurangan lahan sawah dan kebun, dapat menurunkan rasio debit dan produksi juga menurun. Analisis aspek ekonomi termasuk merugikan karena terganggunya suplai beras dan tanaman tegalan yang diperlukan untuk menopang kehidupan masyarakat. Upaya pengendalian banjir Kali Blorong dapat ditekan dengan melakukan perencanaan simulasi penggunaan lahan sampai memperoleh angka rasio debit kecil, dengan harapan produksi lahan juga meningkat sehingga dari aspek ekonomi menguntungkan masyarakat.
MODEL PENENTUAN LOKASI PENIMBUNAN (LANDFILL) LIMBAH B3 DENGAN BANTUAN SISTEM INFORMASI GEOGRAFIS (SIG) Sardi, .
Jurnal Teknik Sipil dan Perencanaan Vol 10, No 1 (2008): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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One of the activity bunch of managing the hazardose waste is site choice for landfilling waste reduce. Using GIS (Geographic Information System) be the answer “Where is it”, SIG can be used as tools for identifikated site to supply all the requirement or criteria al at once. Salah satu rangkaian kegiatan dari pengelolaan limbah bahan berbahaya dan beracun (B3) adalah penentuan site (lokasi) untuk penimbunan hasil olahan limbah. Dengan kemampuan Sistem Informasi Geografis (SIG) yang dapat menjawab pertanyaan-pertanyaan “Where is it”, SIG dapat digunakan sebagai alat bantu (tool) untuk menemukan lokasi yang memenuhi beberapa syarat atau kriteria sekaligus
STRUCTURE DESIGN OF PARKING BUILDING SUNTER PARK VIEW APARTMENT WITH THE EQUIVALENT STATIC ANALYSIS METHOD Wuritno, Bambang
Jurnal Teknik Sipil dan Perencanaan Vol 15, No 1 (2013): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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Parking building (Tower C), Project Sunter Park View Apartment is a public facility that serves as a parking garage. This building consists of 4 floors including the roof plate with a typical floor plan for each level. Floor to floor elevation is 3 meters height, so the total height of the building reach 9 meters height (less than 40 meters height). Review Design Parking building structure (Tower C) Project Title: "Structure Design Of Parking Building Sunter Park View Apartment With The Equivalent Static Analysis Method” , wherein the influence of earthquakes on structures analyzed by Equivalent Static method based on the Standard Provisions Design for Earthquake Resistance of Building Structures (SNI 03-1726-2002). Structural components of buildings designed by Special Moment Frame System Bearers (SRPMK) based on Procedure for Calculation of Concrete Structure for Buildings (SNI 03-2847-2002).
TINJAUAN ASPEK KELAYAKAN ELEMEN PEMBENTUK RUANG KOMUNAL DI TAMAN MONUMEN 45 KOTA PEKALONGAN Setiawan, Moch Fathoni; Purnomo, Andi
Jurnal Teknik Sipil dan Perencanaan Vol 18, No 1 (2016): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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Taman Monumen 45 is one of the city park in Pekalongan City, in which there are statues of the heroes as monument to commemorate the services of the heroes. In this park there are also garden element in shape of hard elements and soft elements. Some hard elements are sitting group, pedestrian area, sports area, and the statue of the heroes (sculpture). The hard elements are referred to support the communal activity for the citizens of Pekalongan. They are functioned as for gathering and chatting, lounging, skateboarding and BMX styling. This study aims to assess the feasibility aspects in Taman Monumen 45 in Pekalongan City. From the research, it was revealed that there are some elements of the park that do not meet the eligibility aspect as constituting elements of communal space. It can be seen from the condition of these elements, either hard material or soft material that is still less maintained and is not in accordance with its function.Taman Monumen 45 merupakan salah satu taman kota di Kota Pekalongan yang mana di sana terdapat patung pahlawan sebagai monumen  untuk mengenang jasa para pahlawan. Pada taman ini juga terdapat elemen taman berupa elemen keras (hard material) dan elemen lunak (soft material). Elemen keras pada taman ini diantaranya sitting group, area pedestrian, sport area, dan patung pahlawan (sculpture). Elemen keras tersebut sebagai salah satu pendukung aktifitas komunal bagi warga Kota Pekalongan seperti berkumpul, mengobrol dan duduk santai, tempat bermain skateboard dan BMX style. Penelitian ini bertujuan untuk mengkaji aspek kelayakan pada Taman Monumen 45 di Kota Pekalongan. Dari hasil penelitian, terungkap bahwa ada beberapa elemen taman yang tidak memenuhi aspek kelayakan sebagai pembentuk elemen ruang komunal. Hal ini dapat dilihat dari kondisi elemen-elemen tersebut, baik hard material atau soft material yang masih kurang terawat dan tidak sesuai dengan fungsinya.
GERUSAN LOKAL DI KAKI STRUKTUR IMPERMEABLE BERDINDING MIRING -, Dalrino; Utomo, Karuniadi Satrijo
Jurnal Teknik Sipil dan Perencanaan Vol 13, No 2 (2011): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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Toe scour was one of phenomenon that frequently experienced by coastal structures and realized as the causative factor to structure failure. When a coastal structure was placed at coastal environment, existence of that structure would rapidly affect to the flow pattern around its area, one of them was breaking wave position. When breaking wave happened, energy dissipation caused by breaking process would be compensated in the form of vortex and improvement of flow intensity that have ability to move bed material from its original rest position around the toe.This research was focused on the breaking wave condition that produce local scouring at toe of impermeable sloping wall structure. Testing variable consists of wave height (H ), wave period (T) , water depth at toe (ds), beach slope (tan b), and angle of structure (a). Physical Modeling was conducted at wave flume with 40 m length, 0.6 m width and 1.1 m height in Balai Hidraulika and Geoteknik Keairan (BHGK) PUSAIR, Bandung. Riset result shows that improvement of toe scour was affected by breaking wave characteristics and their interaction with the structure. Improvement of depth of scour was in relation with water depth at toe, height of wave breaking, surf similarity parameter, bed agitation caused by breaking process, and downrush flow velocity.Gerusan kaki merupakan fenomena yang sering dialami oleh struktur-struktur bangunan pantai dan disadari sebagai faktor penyebab kegagalan struktur. Saat struktur ditempatkan di lingkungan pantai, keberadaan struktur tersebut akan segera mempengaruhi pola aliran disekitarnya, salah satunya adalah posisi gelombang pecah. Saat terjadi gelombang pecah, disipasi energi akibat proses pecahnya gelombang akan terkompensasi dalam bentuk vortex dan peningkatan intensitas aliran yang memiliki kemampuan untuk memindahkan material dasar dari posisi awalnya di kaki struktur. Penelitian ini difokuskan pada kondisi gelombang pecah yang menghasilkan gerusan local di kaki pada struktur impermeable berdinding miring. Variabel pengujian terdiri atas tinggi gelombang (H), periode gelombang (T), kedalaman air di kaki struktur (ds), kemiringan pantai (tan b), dan sudut kemiringan struktur (a). Pemodelan fisik dilakukan pada saluran gelombang dengan panjang 40 m, lebar 0,6 m dan tinggi 1,1 m di Balai Hidraulika dan Geoteknik Keairan (BHGK) PUSAIR, Bandung. Hasil penelitian memperlihatkan terjadinya peningkatan gerusan kaki sebagai akibat dari karakter gelombang pecah dan interaksinya terhadap struktur. Peningkatan kedalaman gerusan sebagai hubungan dari kedalaman air di kaki struktur, tinggi gelombang pecah, parameter surf similarity, gangguan terhadap dasar di kaki struktur akibat proses pecah gelombang, dan kecepatan aliran downrush.
PEMODELAN BANGKITAN TRANSPORTASI BERBASIS RUMAH TANGGA Tjahyono, Sigit
Jurnal Teknik Sipil dan Perencanaan Vol 11, No 1 (2009): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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About 3% from household total at semarang live in housing,  or around 15.000 family in all  semarang. Total will evoke rising movement at every day. This watchfulness aims to composed model rising movement that come from housing. Looked for influential factors towards rising movement in housing location, so that can be used to predict magnitude  rising that will happen suppose be built new housing location. Sample is taken at nine housing locations that represent 3 housings class. Watchfulness is done by using structured interview technique by using kuesioner. Model arrangement is done by using doubled linear regression technique. Movement total (trip) as bound variable (dependent variable) while variable other as free variable (independent variable). Rising trip in luxurious housing is influenced by : (1) family income, (2) vehicle occupant total moment take a trip, (3) family member total in house, (4) car total that has, (5) motorcycle total that has, (6) child total that school / work. In intermediate housing is being influenced by: (1) sex that be family head, (2) vehicle occupant total moment take a trip, (3) family member total in house, (4) that pair, (5) child total that school / work. In simple housing is influenced by: (1) sex that be family head, (2) family head age, (3) family income each month, (4) vehicle occupant total moment take a trip, (5) family member total in house, (6) that pair, (7) child total that school / work.Sekitar 3% dari total rumah tangga di Semarang tinggal di perumahan, atau sekitar 15.000 keluarga di seluruh Semarang yang akan mendorong peningkatan pergerakan setiap hari. Kewaspadaan ini bertujuan untuk menyusun model peningkatan pergerakan yang berasal dari perumahan. Mencari faktor-faktor yang berpengaruh terhadap meningkatnya gerakan di lokasi perumahan, sehingga dapat digunakan untuk memprediksi besarnya kenaikan yang akan terjadi pada lokasi perumahan baru. Sampel tersebut diambil di sembilan lokasi perumahan yang mewakili kelas 3 perumahan. Kewaspadaan dilakukan dengan menggunakan teknik wawancara terstruktur dengan menggunakan kuesioner. Pengaturan model dilakukan dengan menggunakan teknik regresi linier dua kali lipat. Gerakan total (perjalanan) sebagai variabel terikat (variabel), sementara variabel lainnya sebagai variabel bebas (independen variabel). Meningkatnya perjalanan di perumahan mewah dipengaruhi oleh: (1) pendapatan keluarga, (2) jumlah penghuni kendaraan saat melakukan perjalanan, (3) jumlah anggota keluarga di rumah, (4) total jumlah mobil yang dimiliki, (5) total jumlah sepeda motor yang memiliki , (6) jumlah anak sekolah / kerja. Di perumahan menengah dipengaruhi oleh: (1) jenis kelamin kepala keluarga, (2) jumlah penghuni kendaraan saat melakukan perjalanan, (3) jumlah anggota keluarga di rumah, (4) pasangan, (5) jumlah anak sekolah / bekerja. Di perumahan sederhana dipengaruhi oleh: (1) jenis kelamin kepala keluarga, (2) umur kepala keluarga, (3) penghasilan keluarga setiap bulan, (4) jumlah penumpang kendaraan saat melakukan perjalanan, (5) jumlah anggota keluarga di rumah , (6) pasangan, (7) jumlah anak sekolah/kerja.
MECHANICAL PROPERTIES OF AFTER-FIRE CONCRETE WITH RICE HUSK ASH (RHA) AS AN ADDITIONAL MATERIAL Joedono, Ngudiyono
Jurnal Teknik Sipil dan Perencanaan Vol 9, No 1 (2007): Jurnal Teknik Sipil & Perencanaan
Publisher : Semarang State University

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Abstract

The temperature above 200  oC at fire can cause reducing of the strength of concrete. To anticipate that condition, in order to enhance the strength, the use of rice husk ash (RHA) as an additional material is an alternative. The research would like to know the mechanical behavior and physical changing of after fire concrete with RHA. The specimens are concrete cylinder with 15 cm in diameter and 30 cm height. They are 54 specimens, 30 specimens are used for compression strength of normal concrete at various ages, and the less 24 specimens are used for the compression strength of after fire concrete. The test runs at 3, 7, 14, 28, and 90 days for normal concrete, and 90 days for after fire concrete. The temperatures of fire are 200, 400, 600, and      800 oC respectively with duration one hour. At temperature 200  oC, the compression strength of normal concrete lower than that of RHA concrete. In addition, at 400, 600, and 800 oC, the compression strength of normal concrete less decrease than that of RHA concrete Modulus elasticity of both normal and RHA concrete decrease after firing at 200 to 800 oC. At 400 to 600 oC, they have surface crack and color changing brown to black brown for normal concrete, also white brown for RHA concrete. At 800 ˚C, for normal concrete not only have surface cracks but also spalling. The colors of the concrete become white brown (at 600  oC), and white pink (at 800  oC).Pada saat kebakaran, bila suhu yang terjadi di atas 200 oC, kekuatan beton akan menurun. Penambahan abu sekam padi (RHA, rice husk ash) merupakan upaya memperbaiki mutu beton. Pada penelitian ini akan dikaji seberapa jauh penurunan kekuatan dan perubahan fisik beton dengan penambahan abu sekam padi 15 % pasca kebakaran. Benda uji berupa silinder beton dengan diameter 15 cm dan tinggi 30 cm.  Jumlah benda uji sebanyak 54 sampel, 30 sampel dipakai untuk kuat tekan pada umur yang berbeda, dan 24 sampel dipakai untuk uji kuat tekan beton pasca bakar. Pengujian kuat tekan beton dilakukan pada umur 3, 7, 14, 28, dan 90 hari untuk beton pra bakar, dan 90 hari untuk beton pasca bakar  Pembakaran dilakukan pada suhu 200, 400, 600, dan 800 oC, dengan lama pembakaran masing-masing 1 jam. Pada suhu 200 oC, beton normal mengalami kenaikan kuat tekan lebih kecil bila dibandingkan dengan kuat tekan beton dengan abu sekam padi. Pada suhu 400, 600, dan 800 oC beton normal mengalami penurunan kuat tekan  lebih kecil  dari penurunan kuat tekan beton dengan abu sekam padi. Modulus elastisitas beton normal maupun beton dengan abu sekam padi pasca bakar suhu 200hingga    800 oC mengalami penurunan. Pada suhu 400hingga 600 oC, beton normal maupun beton dengan RHA mengalami retak-retak permukaan (surface crack), dan perubahan warna, menjadi abu-abu kehitaman (beton normal), dan abu-abu (beton RHA). Pada suhu 800 oC beton normal selain mengalami retak-retak permukaan juga mengalami pengelupasan (spalling). Warna beton menjadi putih keabu-abuan (suhu 600  oC) dan merah muda keputih-putihan (suhu 800  oC). 

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