Ahmed Elyamani

Ahmed Elyamani
Cairo University | CU · Department of Archaeological Conservation

PhD, MSc, Dip., BSc
Conservation Structural Engineer

About

28
Publications
29,719
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237
Citations
Introduction
Structural Engineer and Associate Professor in Structural Conservation of Historical Structures and Sites, Cairo University, Dept. of Archaeological Conservation. Research interests include structural analysis of historical structures, static and dynamic monitoring, rehabilitation of historical structures. Teaching classes in "Structural Analysis", "Intervention Techniques", "Management of Historical Sites", among other courses for students of Architectural Conservation Program.
Additional affiliations
August 2012 - August 2012
Bauhaus Universität Weimar, Germany
Position
  • Summer School
October 2010 - February 2015
Polytechnic University of Catalonia, Barcelona, Spain
Position
  • PhD Student
April 2009 - July 2009
Polytechnic University of Catalonia, Barcelona, Spain
Position
  • Master's Student

Publications

Publications (28)
Article
Full-text available
The Palace of Baron Empain in Cairo is a unique architectural masterpiece of its kind. Edward Empain, a rich Belgian, built it in 1911 influenced by the architecture of the famous Cambodian temple of Angkor Wat. The palace is composed of three floors (basement, ground and first) and a roof, it is surrounded by a garden from all sides. It suffered f...
Article
Full-text available
The cemetery of the royal family, who ruled Egypt from 1805 to 1952, is one of the masterpieces of the UNESCO World Heritage Site of Historic Cairo. It is a complex building from massive stone masonry walls supporting hemispherical domes and is very rich with the marble decorative elements. Unfortunately, it suffers nowadays from serious cracking d...
Article
Full-text available
Assessment of seismic safety of historical structures is a challenging task because the information available about the assessed structure is usually limited. Therefore, it is often necessary to exploit a number of integrated investigation activities to increase the level of knowledge about the historical structure under consideration. Thus, in the...
Article
Full-text available
This paper represents a continuation of a review on the seismic safety assessment of historical structures using some selected integrated investigation activities. In the first part of this review the dynamic investigation was presented. Here a focus is made on the updating of the numerical models used in the assessment phase and the used technique...
Conference Paper
Full-text available
This paper investigates the in-plane response of ambient-dry and wet clay-brick/lime-mortar masonry walls under lateral cyclic loading and co-existing compressive gravity load, as well as of square masonry panels under diagonal compression. The properties of the constituent materials were selected to resemble those of existing heritage masonry stru...
Chapter
This paper examines the experimental structural response of clay brick lime mortar masonry walls in wet and ambient-dry conditions. The properties of fired-clay bricks and hydraulic lime-mortar materials are selected to resemble those of existing heritage masonry structures in Historic Cairo. The investigation includes tests on square panels under...
Article
Full-text available
This paper presents an experimental investigation into the structural and material response of ambient-dry and wet clay-brick/lime-mortar masonry elements. In addition to cyclic tests on four large-scale masonry walls subjected to lateral in-plane displacement and co-existing compressive gravity load, the study also includes complementary tests on...
Article
Full-text available
Historic Cairo is a World Heritage Site listed by UNESCO due to its historical and architectural richness. The State spares no effort in preserving, restoring, and maintaining its monumental buildings. Nevertheless, some monumental buildings suffer from harsh surrounding conditions such as the rise of the groundwater level, the establishment of ind...
Article
Full-text available
This research is a part of an integrated study of Sednaoui El-Khazendar building in Khedival Cairo dating back to 1913. In the first part of this study, presented in another paper, the building was inspected, the causes and symptoms of damage were identified and proposals for conservation and re-use were developed. In this paper, the studies carrie...
Conference Paper
Full-text available
Egypt is famous for its cultural heritage and historic attractions that span thousands of years. This cultural heritage is one of the tourism industry motors which contributes significantly to the country's gross domestic product (GDP). Historic Cairo has been declared as a UNESCO World Heritage Site for having hundreds of mesmerizing historic Isla...
Article
Full-text available
The paper discusses the seismic assessment of Mallorca cathedral in Spain. This cathedral is an audacious Gothic structure built on the island of Mallorca during 14th-16th centuries, characterized by its large dimensions and slender structural members. For that purpose, different analysis methods were used. A 3D Finite Element (FE) model of the cat...
Conference Paper
Full-text available
For preserving existing structures to the extent possible, vibration-based damage detection techniques are gaining more attention. In specific, tracking the changes in a structure's natural frequencies employing the Principal Component Analysis (PCA) seems to be a promising technique. This paper presents an ongoing research for developing an approa...
Article
Full-text available
Mallorca cathedral is one of the largest ever built cathedrals in the world. When compared with all other Gothic cathedrals in the world, it is found that its columns have the highest slenderness ratio, its main nave span is the second longest after Girona cathedral, and its main nave is the third highest after those of Beauvais and Milan cathedral...
Article
Full-text available
An integrated investigation of engineering archaeometry was carried out using dynamic identification, dynamic monitoring and Infra-Red (IR) thermography for the study of the dynamic behavior of Mallorca cathedral in Spain. The cathedral is a large historical masonry structure built during 14-16th c. Dynamic identification and monitoring allowed the...
Article
Full-text available
Cairo Down-Town is known as Khedival Cairo. It is famous for its rich architectural heritage buildings designed by many European architects during the 19th and the 20th c. Many of these buildings have deteriorated due to misuse and lack of maintenance. In this paper, the survival of a historic balcony of one of these buildings (dating back to 1911)...
Article
Full-text available
Islamic monumental buildings in Egypt, generally, and in Cairo, specifically, suffer from a number of typical problems such as: lack of maintenance, raising of ground water levels, and spread cracks in structural elements. As well, the surroundings of such buildings suffer from a number of typical problems such as: harmful anthropogenic actions inc...
Conference Paper
Full-text available
This research paper deals with Sednaoui El-Khazender building which is one of the unique buildings in Cairo dating back to the beginning of the 20th c. It was designed by the famous French Architect Eiffel. The building was visually inspected and the different signs and symptoms of damage were identified. Intervention techniques were proposed for t...
Conference Paper
Full-text available
Historical structures and sites are among the important touristic attractions if they are properly managed and exploited. Rehabilitation is one of the important approaches of their re-use. This paper is throwing the light on one of the modern techniques in the rehabilitation which is the three dimensional (3D) virtual shows. The paper presents an i...
Article
The paper presents an integrated approach aimed at assessing the seismic safety of Mallorca cathedral. This cathedral is an extraordinary historical construction dating back to the middle ages. The experimental modal parameters of the cathedral were identified using Ambient Vibration Testing (AVT). The cathedral numerical model was updated using th...
Article
The presented research aimed at studying the dynamic behavior of Mallorca cathedral (Mallorca Island, Spain) under ambient sources of vibration and seismic events. The cathedral is one of the greatest built masonry structures worldwide. It is characterized for its audacious dimensions and slender structural members. Because of it, the study of its...
Article
Full-text available
The spire of Barcelona cathedral suffered from severe problems due to the corrosion of the steel ties used in reinforcing its stone masonry beams. Wide visible cracks were noticed in the stone beams and large parts were detached. Therefore, the full spire was dismantled and reconstructed using titanium ties to eliminate the corrosion problem. A fin...
Article
Full-text available
This research aims at throwing the light on one of the few survived examples of Ancient Egyptian vaulted structures; those are the storerooms of the temples of the Ramesseum and Sety I built in the 13th century BC. In the first case, only some of the adobe vaults and walls are still standing; whereas in the second case all the vaults collapsed and...
Conference Paper
Full-text available
The discovery of the tomb of Meryneith is one of the recent and important discoveries in Saqqara. The tomb was discovered in the period from 2001 to 2003 by the archaeological mission of Leiden University (the Netherlands). The importance of the discovery goes back to the positions held by the tomb owner Meryneith. He was the High Priest of Aton in...
Thesis
Full-text available
Historical structures are vital to the realization of how the technical, artistic, and scientific skills of the human kind have developed over time. These structures are one of the motors of the tourism industry, and therefore, the studies related to their conservation do not only have social benefits but as well economical ones. It is unfortunatel...
Conference Paper
Full-text available
The paper presents the application of continuous dynamic monitoring and thermographic monitoring to the study of Mallorca Cathedral, one of the largest medieval structures built in Europe. The dynamic monitoring has been carried out by means of a network of three strong motion tri-axial accelerometers installed in December 2010. This network has al...
Conference Paper
Full-text available
The paper presents the current state of an on-going research aimed at characterizing the seismic response of Mallorca cathedral. Mallorca cathedral is an audacious Gothic structure built in the island of Mallorca during 14th-16th centuries, characterized for its large dimensions and slender structural members. So far, experimental and numerical mod...
Thesis
Full-text available
Barcelona Cathedral is one of the most important monuments not only in Spain but also all over the world. The construction of the Gothic cathedral started in 1298 under King Jaume II and in 1460 the main building was completed. The two architects Josep Oriol Mestres and August Font i Carreras completed the construction of the gothic façade in 1889...

Questions

Question (1)
Question
For instance, Uniform Code of Building Conservation (UCBC). 

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Projects

Projects (4)
Project
This research project aims at proposing and applying an interdisciplinary approach for the management and conservation of the UNESCO world heritage site of Historic Cairo. In order to apply and demonstrate the developed methodologies, a part of the site has been selected, namely “Al-Ashraf street”. The proposed project is not meant to be solely an engineering solution for the threats faced by this street but it is intended to provide a holistic approach that could be applied in other areas in Historic Cairo and, more generally, in other archaeological sites in Egypt and in other developing countries.