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- Curing (2)
- Mixing water (2)
- Treated wastewater (2)
- Applied element method (1)
- Beam tests (1)
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- Built-up members (1)
- CFRP (1)
- CFRP plates (1)
- Column collapse (1)
- Communication towers (1)
- Construction and demolition waste (1)
- Corrosion (1)
- Egypt (1)
- Flexibility (1)
- Galvanic corrosion (1)
- Glass fibres (1)
- Lake BurullusContaminationDrain-ChemicalPollution-Index (DCPI)Water quality data (WQD)ANOVA (Analysis of Variance) (1)
- Modeling (1)
- Moment redistribution (1)
- Plastic waste; Recycling; HDPE Mortar; Plastering (1)
- Post-Tensioned Slabs (1)
- Progressive collapse; Post-tensioned slabs ; Applied element method; Collapsed area ; Column removal Rotation limits (1)
- Project Scheduling (1)
- Qualitative analysis (1)
- Quantitative analysis (1)
- Resource Allocation Problem(RAP) (1)
- Resource Planning in Construction Projects (1)
- Seismic Loading (1)
- Special Moment Connections; Column Loss; Connection Failure Pattern; Ductile RC Frames; Applied Element Method (1)
- Special Moment Connections; Column Loss; Connection Failure Pattern; Ductile RC Frames; Applied Element Method. (1)
Articles 1 - 15 of 15
Full-Text Articles in Engineering
Assessment Framework For Bim-Digital Twin Readiness In The Construction Industry, Aljawharah A. Alnaser, Ali Hassan Ali, Haytham H. Elmousalami, Ahmed Elyamany, Ahmed Gouda Mohamed
Assessment Framework For Bim-Digital Twin Readiness In The Construction Industry, Aljawharah A. Alnaser, Ali Hassan Ali, Haytham H. Elmousalami, Ahmed Elyamany, Ahmed Gouda Mohamed
Civil Engineering
No abstract provided.
Statistical Analysis For Water Quality Data Using Anova (Case Study- Lake Burullus Influent Drains), Mohamed Hussein Hegazy
Statistical Analysis For Water Quality Data Using Anova (Case Study- Lake Burullus Influent Drains), Mohamed Hussein Hegazy
Civil Engineering
Lake Burullus is considered one of the most valuable northern lakes in Egypt due to its unique ecological system and special location. Over the past four decades, the lake has suffered from high contamination levels due to expansion in fish farming and increasing of agricultural drainage water entering the southern side of the lake through eight influent drains. This research aims to assess the current situation of the lake’s influent drains. For this purpose, two types of statistical analysis, Mean average method, and Analysis of Variance (ANOVA) were used. The water quality conditions for six major drains (Therah (Tira), Nashart, …
Properties Of Cement Mortar Containing Recycled High-Density Polyethylene (Hdpe), Amany G. Micheal Prof., Esraa Torky, Merna Amir
Properties Of Cement Mortar Containing Recycled High-Density Polyethylene (Hdpe), Amany G. Micheal Prof., Esraa Torky, Merna Amir
Centre for Advanced Materials
Millions of tones of plastic waste are generated globally and only less than 10 per cent has been recycled. It is crucial to segregate and circulate plastic waste and repurposing it for countless other uses. There are many ways to repurpose and reuse these discarded plastics. One use that can be examined is the use of plastic as partial sand replacement in mortar. To contribute to this important and valid discourse, the research studies the mechanical and thermal properties of recycled HDPE mortar as an active way of integrating plastic waste into the construction industry to partially eliminate some of …
Implementation Of Secondary And Tertiary Treated Wastewater In Concrete Manufacturing, Amany G. Micheal Prof., Haidy Abdel Salam, Gouda Ghanem
Implementation Of Secondary And Tertiary Treated Wastewater In Concrete Manufacturing, Amany G. Micheal Prof., Haidy Abdel Salam, Gouda Ghanem
Civil Engineering
Water scarcity is a problem that faces many regions. In a developing and arid country like Egypt, the need for freshwater is exponentially increasing. This research is an evaluation of the recycled wastewater to be used in concrete manufacturing. The treated wastewater is blended with potable water with percentages of 25%, 50%, and 100%. The mixture of the two types of water is used in concrete mixing and curing. Control specimens with pure potable water are cast for comparison. The setting time for Ordinary Portland Cement is tested using the different water mixes. The hardened concrete is tested in compression …
Analyzing Resource Allocation And Levelling In Construction Projects, Mohamed Eizeldin, Mohamed Hussein Hegazy, Ahmed Alhady, Shahir Ashraf
Analyzing Resource Allocation And Levelling In Construction Projects, Mohamed Eizeldin, Mohamed Hussein Hegazy, Ahmed Alhady, Shahir Ashraf
Civil Engineering
Project scheduling has been crucial in any construction project since applying poor scheduling may lead to cost overruns and delays. The most commonly used technique for scheduling is the critical path method (CPM). As CPM neglects the availability of resources and assumes only time as a constrain; therefore, the resource allocation problem (RAP) technique is introduced. RAP appears when the number of resources required exceeds the number of resources available. Moreover, as a result of solving the RAP, another problem will occur known as the resource leveling problem (RLP). RLP lead to lots of hiring and firing of laborers. Researchers …
Implementation Of Secondary And Tertiary Treated Wastewater In Concrete Manufacturing, Amany G. Micheal Prof., Haidy Abd El Salm, Gouda Ghanem Prof.
Implementation Of Secondary And Tertiary Treated Wastewater In Concrete Manufacturing, Amany G. Micheal Prof., Haidy Abd El Salm, Gouda Ghanem Prof.
Centre for Advanced Materials
Water scarcity is a problem that faces many regions. In a developing and arid country like Egypt, the need for freshwater is exponentially increasing. This research is an evaluation of the recycled wastewater to be used in concrete manufacturing. The treated wastewater is blended with potable water with percentages of 25%, 50%, and 100%. The mixture of the two types of water is used in concrete mixing and curing. Control specimens with pure potable water are cast for comparison. The setting time for Ordinary Portland Cement is tested using the different water mixes. The hardened concrete is tested in compression …
Numerical Assessment Of Post-Tensioned Slabs Due To Seismic Column Collapse, Mariam Ehab, Aya Elhozayen
Numerical Assessment Of Post-Tensioned Slabs Due To Seismic Column Collapse, Mariam Ehab, Aya Elhozayen
Civil Engineering
In our recent catastrophes, Progressive collapse become an essential behavior that should be researched widely and to be considered by engineers through the design process. The main vertical loss can be caused by different reasons, either blast due to terrorist attack, failure of columns due to extreme earthquake application, or finally, losing a structural element due to high impact resulted from a vehicle or any other moving object. Losing main vertical element due to extreme earthquake excitation is an important and repeated occurrence, However, it didn’t take much attention in progressive collapse recent studies. Unified Facilities Criteria (UFC) and General …
Modeling Considerations For Built-Up Compression Members In Communication Towers, Ghada M. El-Mahdy P.Eng., Ceng, Amro A. Alawamry
Modeling Considerations For Built-Up Compression Members In Communication Towers, Ghada M. El-Mahdy P.Eng., Ceng, Amro A. Alawamry
Civil Engineering
It is a well-established fact that built-up compression members exhibit extra flexibility than their equivalent solid members due to the shear action which effects the overall stability. This is usually taken into consideration by using a modified slenderness ratio for buckling modes that involve relative deformation of the interconnectors. Built-up members are often used as space truss members in communication towers. When modeling communication towers in structural analysis programs like SAP2000, the built-up member is usually defined as a single member element with a double section cross section. This does not catch the increase in deflection in the member due …
Quantifying Materials Waste In The Egyptian Construction Industry: A Critical Analysis Of Rates And Factors, Ayman Ahmed Ezzat Othman, Ahmed Osama Daoud Dr., Obas John Ebohon, Ali Bayyati
Quantifying Materials Waste In The Egyptian Construction Industry: A Critical Analysis Of Rates And Factors, Ayman Ahmed Ezzat Othman, Ahmed Osama Daoud Dr., Obas John Ebohon, Ali Bayyati
Architectural Engineering
Construction and demolition waste (CDW) is a critical challenge facing the construction industry. It leads to deterioration of the triple bottom line of sustainability. Unfortunately, the CDW management research in Egypt lacks studies investigating (1) the variations in CDW generation (CDWG) among different types of construction projects, and (2) the factors affecting CDW reduction (CDWR). Based on a benchmarking approach, this research (1) quantifies CDW in terms of generation rates and costs among different construction project types in Egypt, and (2) investigates the relationship between CDWG and different adopted CDWR factors. Using structured interviews, a comparative case study was conducted …
Experimental Investigation For Moment Redistribution In Continuous Rc Beams Top Strengthened With Cfrp And Steel Plates, Amr Ibrahim, Shady Salem, Ayman Khalil, Mahmoud El-Kateb
Experimental Investigation For Moment Redistribution In Continuous Rc Beams Top Strengthened With Cfrp And Steel Plates, Amr Ibrahim, Shady Salem, Ayman Khalil, Mahmoud El-Kateb
Civil Engineering
An experimental study was conducted on eight T-section continuous reinforced concrete beams top strengthened with CFRP and steel plates. The beams had a constant cross section and flexural steel reinforcement which was designed to prevent brittle failure due to crushing of concrete before steel yielding. The plates were installed on both sides of the slab above the beam web as near surface mounted or externally bonded to investigate the effect of different plating techniques on the moment redistribution in reinforced concrete beams. The number of plates in each specimen was changed. Steel stirrups were used and designed so that no …
Moment Redistribution In Continuous Rc Beams Top Strengthened With Steel And Cfrp Plates, Amr Ibrahim, Ayman Khalil, Shady Salem, Mahmoud El-Kateb
Moment Redistribution In Continuous Rc Beams Top Strengthened With Steel And Cfrp Plates, Amr Ibrahim, Ayman Khalil, Shady Salem, Mahmoud El-Kateb
Civil Engineering
It is common practice to retrofit continuous reinforced concrete (RC) beams by fiber reinforced polymer (FRP) or steel plates. This can cause a significant amount of moment redistribution (MR) which results in an efficient and economic design when taken into consideration. There is lack in research regarding MR in continuous RC beams when strengthening plates are applied only at the top side at the hogging regions. The main purpose of this paper is to assess MR in continuous RC beams top strengthened with steel and/or carbon fiber reinforced polymer (CFRP) plates. In this respect, a nonlinear finite element model was …
Assessment Of Smc Frames Under Different Column Removal Scenarios, Mina Maxi, Mariam Ehab
Assessment Of Smc Frames Under Different Column Removal Scenarios, Mina Maxi, Mariam Ehab
Civil Engineering
Throughout the past decades, failure of structures threatening the lives of humans had been popular whether through structure failure due to human error such as Hyatt Regency walkway collapse, 1981, terrorist attacks on the American embassy attack in Nairobi, Kenya 1998 and the famous 9/11 attacks in 2001 and many more. As a result of these incidents, The Unified Facilities Criteria (UFC) was developed concerning the progressive collapse issues by analyzing different types of structures under column loss and studying the overall structural behavior. However, the (UFC) didn’t scope on the local behavior of the structural components and its connection …
Assessment Of Smc Frames Under Different Column Removal Scenarios, Mariam Ehab, Mina Malak
Assessment Of Smc Frames Under Different Column Removal Scenarios, Mariam Ehab, Mina Malak
Civil Engineering
Throughout the past decades, failure of structures threatening the lives of humans had been popular whether through structure failure due to human error such as Hyatt Regency walkway collapse, 1981, terrorist attacks on the American embassy attack in Nairobi, Kenya 1998 and the famous 9/11 attacks in 2001 and many more. As a result of these incidents, The Unified Facilities Criteria (UFC) was developed concerning the progressive collapse issues by analyzing different types of structures under column loss and studying the overall structural behavior. However, the (UFC) didn’t scope on the local behavior of the structural components and its connection …
Progressive Collapse Assessment Of Post-Tensioned Reinforced Concrete Flat Slab Structures Using Aem, Amgad Mahrous, Mariam Ehab, Hamed Hadhoud
Progressive Collapse Assessment Of Post-Tensioned Reinforced Concrete Flat Slab Structures Using Aem, Amgad Mahrous, Mariam Ehab, Hamed Hadhoud
Civil Engineering
Progressive collapse is defined as the failure of a primary vertical element of a structure, which may result in the failure of adjoining elements, consequently, leads to a partial or total collapse of the structure. Unified Facilities Criteria (UFC) and General Services Administration (GSA) guidelines used to assess the behavior of structures subjected to progressive collapse as a result of the loss of primary vertical support. For the current case study, numerical analysis is carried out for a typical ten-story reinforced concrete post-tensioned flat slab structure subjected to primary vertical element loss (corner column, edge column, internal column, edge shear …
Strengthening Of Corroded Steel Structures Using Cfrp – An Experimental Review, Ghada El-Mahdy Ph.D., P.Eng, Abdallah H. Yassin, Abdel El Rahman Khaled
Strengthening Of Corroded Steel Structures Using Cfrp – An Experimental Review, Ghada El-Mahdy Ph.D., P.Eng, Abdallah H. Yassin, Abdel El Rahman Khaled
Civil Engineering
Fibre reinforced polymers (FRP) have been widely used to strengthen reinforced concrete structures, however, nowadays their use to strengthen steel structures is under investigation. In particular, the need to strengthen corroded steel structures found in aggressive environments, such as marine environments, which have undergone a reduction in cross-sectional area and hence a reduction in their load-carrying capacity is in need of studying. The main problems that arise when using carbon fibre reinforced polymer (CFRP) sheets to strengthen steel structures is the weakness in the interfacial bond between the CFRP and the steel surface, the thinness of CFRP sheet, and the …