Ridwan was conducting his PhD in civil engineering at University of Birmingham, United Kingdom. His research is in concrete structures, in particular the rehabilitation and strengthening existing concrete structures, combined with the use of non linear finite element analysis (NLFEA) to study the parameters regarding the use of new material. This research was conducted under supervision of Dr Samir Dirar.
PhD in Civil Engineering, University of Birmingham, 2016 Thesis : Reinforced Concrete Beam-Column Joints Strengthened in Shear with Embedded Bars. Available at: online
Master in Civil Engineering, Gadjah Mada University, 2004 Thesis : Behavior of Reinforced Concrete Beam Having Rectangular and Circular-Shaped Opening at Exterior RC Beam-Column Joints Subjected to Earthquake-type Loading. Available at: online
BSc in Civil Engineering, Islamic University of Indonesia, 1997 Thesis : Comparison of Soil Bearing Capacity on Shallow Foundation Based on Meyerhofs’s, Terzaghi ‘s and Hansen’s Theories
Struktur Beton Dasar Struktur Beton Gedung Struktur Beton Jembatan Dasar-Dasar Pemrograman Aplikasi Komputer/CAD Analisa Struktur Dengan Metode Matrik Rekayasa Beton Forensik dan Rehabilitasi Struktur Perilaku Struktur Pemodelan Analisis Struktur
The recent spate of large earthquakes in Indonesia (Aceh 2004, Nias 2005, Padang and Tasikmalaya 2009) had devastating consequences. In Padang earthquake (2009), for instance, with the nature of its building and large population, 250,000 families affected through the loss of their homes and business (Griffith et al, 2010). An investigation conducted into the collapsed buildings showed that poorly designed concrete members and the lack of shear reinforcement in the joint were observed, even in the buildings that were constructed since the introduction of the Indonesia Reinforced Concrete Building Code (SNI 2002).
There are several techniques have been developed to enhance the performance of under-designed RC buildings, ranging from the traditional techniques (concrete jacketing and steel jacketing) to the so-called modern technique with the application of high strength fibres reinforced polymers (FRPs) material. However, experimental results have shown that FRP de-bonding remains the main drawback and prevent the utilisation of the high tensile strength of the FRPs.
A newly technique, namely deep embedded (DE) method was developed to strengthen shear deficient beam (Valerio et al., 2009, Chaallal et al., 2011). The successful of DE method was extended to the strengthening of shear deficient beam-column joints conducted at the University of Birmingham (Ridwan, 2016). Beam-column joints that were strengthened using DE method exhibited more enhanced behaviour where damage occurred in the beam region at the early stages of loading, suggesting the outset of a beam hinging mechanism.
Test of Beam-Column Connection Strengthened with Deep Embedded Bars
Finite Element Model of Beam-Column Connection Strengthened with Deep Embedded Bars
Strengthening of existing reinforce concrete (RC) structure using fibre reinforced polymers (FRPs) material
Concrete-steel and or concrete-FRPs bond model on the use of deep embedment (DE) strengthening method
Non-linear finite element analysis of unstrengthened and strengthened RC structures
Irsan Taufik Ali, Ridwan, Effect of Multimedia Implementation on Learning Management System to The Student’s ability in Mastering Course Material (2008)
Ridwan, Nonlinear Behavior of Reinforced Concrete Beam Column Joints Subjected To Earthquake-Type Loading (2010)
Ridwan, Performance Evaluation of Wall Infill Frame in Moderate Seismic Zone (Case Study : Building in Pekanbaru City) (2010)
Zulfikar Djauhari, Ridwan, Kajian Eksperimental Pengaruh Dinding Bata Tanpa Tulang (URM) dan Dinding Bata Bertulang Terhadap Perilaku Portal Beton Bertulang Akibat Beban Gempa, Hibah Bersaing DIKTI 2011-2012
Ridwan, Reinforced Concrete Beam-Column Joints Strengthened in Shear with Embedded Bars, Ministry of Research and Higher Education of Indonesia Grant No. 323/E4.4/K/2012, 2012-2016
Zulfikar Djauhari, Ridwan, Keruntuhan Progresif Bangunan Beton Bertulang Sistem Ganda, Riset Unggulan Universitas Riau 2017
Zulfikar Djauhari, Ridwan, Keruntuhan Progresif Struktur Bangunan Beton Bertulang Pada Sistem Rangka Beraturan dan Tidak Beraturan, Riset Unggulan Universitas Riau 2018
Ridwan, Zulfikar Djauhari, Pemanfaatan Fibre Reinforced Polymer (FRP) Sebagai Alternatif Pengganti Tulangan Baja Konvensional Pada Struktur Beton Bertulang di Daerah Pekanbaru, Riset Unggulan Universitas Riau 2018
Ridwan, Bambang Suhendro, Andreas Triwiyono. Behavior of Reinforced Beam Having Rectangular and Circular-Shaped Opening at Exterior Beam-Column Joint. Jurnal Teknosains, XVIII, 1,2005. Available at: online
Ridwan, Zulfikar Djauhari, Redhi Delano. Studi Komparasi Analisis Pushover Portal Beton Bertulang Dinding Pengisi Bata Menggunakan Model FEMA 273 dan Saneinejad-Hobbs. Jurnal Sains dan Teknologi, 10, March. 2011. Available at: <http://jst.eng.unri.ac.id/index.php/jst/article/view/98>
Ridwan, Samir Dirar, Yaser Jemaa, Jian Yang, Mohammed Elshafie. Shear Strengthening of Exterior Beam-Column Joints Using Embedded Carbon Fibre Reinforcement Polymer Bars. 7th Biennial Conference on Advanced Composites in Construction, 9th – 11th September 2015,St. John’s College, University of Cambridge, UK. Available online at: <Indexed by Scopus>
Alex Kurniawandy, Shoji Nakazawa, Andy Hendri, Ridwan, Rahmatul Firdaus. Structural Building Screening and Evaluation. AIP Conference Proceeding 1892, 020031 (2017). Available online at DOI : https://doi.org/10.1063/1.5005662
Dhika Fazrian, Zulfikar Djauhari, Ridwan. Keruntuhan Progresif Struktur Rangka Beton Bertulang Sistem Ganda. Konferensi Nasional Teknik Sipil (KONTEKS) 11, 26th – 27th October 2017, Universitas Tarumanagara, Jakarta. Available online at:
Hendra, Reni Suryanita, Ridwan. Penggunaan High Damping Rubber Bearing System pada Struktur Bangunan Gedung Dengan Analisis Time History. 4th Andalas Civil Engineering (ACE) Conference 2017, 9th – 10th November 2017, Universitas Andalas, Padang. Available online at: <ACE Webpage>
Dhika Fazrian, Zulfikar Djauhari, Ridwan.Keruntuhan Progresif Gedung Beraturan Sistem Ganda. JTS UAJY.
Ridwan, Samir Dirar, Yaser Jemaa, Marios Theofanous, Mohammed Elshafie. Shear Strengthening of Exterior Beam-Column Joints using Embedded Steel Bars. Submitted to fib 2018 Congress,7 – 11 October 2018, Melbourne – Australia. Abstract accepted
Ari Sandhyavitri, Alfian Malik, Imam Suprayogi, Manyuk Fauzi, Ridwan. Risk and Uncertainty in the Medan-Binjai Toll Road Infrastructure Project, Indonesia Based on the Stochastic Analyzes, June. 2018. Available at: <https://www.ejers.org/index.php/ejers/article/view/769>
Ridwan, Samir Dirar, Yaser Jemaa, Marios Theofanous, Mohammed Elshafie. Strengthening of Seismically Deficient Exterior Beam-Column Connections using Embedded Steel Bars. DOI: 10.1051/matecconf/201927601007 . ICAnCEE 2018 Conference, 24 – 25 October 2018, Bali – Indonesia
Ridwan, Samir Dirar, Yaser Jemaa, Marios Theofanous. Numerical and Analytical Modelling of RC Beam-Column Joints Shear-Strengthened with Embedded CFRP Bars. Advanced Composites in Construction 2019, 3rd – 5th September 2019, University of Birmingham, UK. <Abstract Accepted>
Ridwan, Yaser Jemaa, Samir Dirar, Zulfikar Djauhari. Analytical Prediction of Reinforced Concrete Beam-Column Joints Strengthened with Deep Embedment Method. International Conference on Earthquake Engineering and Disaster Management, 26th – 27th September 2019, Grand Inna Padang, Indonesia. <Abstract Submitted>