Emad El-Dardiry

• PhD
• Benha University

This paper investigates the structural response of wide span structures where the primary structural system is cable-stayed roof, and aims at optimizing the design of such structures. Finite element analysis is carried out using commercial software taking into consideration the nonlinear formulation of cables. In order to check the accuracy and cap...

Concrete structures are still suffering from different types of distress such as cracking and deformation. At present, the characterization of the concrete structures is implemented using two different concepts. The first concept is based on performing laboratory-testing methods on prepared concrete specimens. In fact this concept should be taken w...

The characterization of concrete on macrostructure based evaluation using the numerical techniques is still limited because modeling the concrete as a single-phase material. Therefore, misunderstanding the actual behavior of the concrete elements is the end result. On the other hand, microstructural analysis are still qualitative technique and very...

The dynamic characteristics of multi-panel floors, primarily to provide information for calculating their response to human loading are examined. The design concern arises from the possibility of resonance being generated by rhythmic human loading if the floor's principal frequency coincides with the load frequency or with two or three times its va...

This paper discusses the behaviour of normal and high strength concrete beams exposed to elevated temperature. The paper also provides a simple, economical, and reliable technique that can be used to assess the fire resistance of concrete beams exposed to multi-action of external loads and elevated temperature simultaneously. The new technique was...

This paper discusses the behaviour of normal and high strength concrete beams exposed to elevated temperature. The paper also provides a simple, economical, and reliable technique that can be used to assess the fire resistance of concrete beams exposed to multi-action of external loads and elevated temperature simultaneously. The new technique was...

The paper investigates the effect of neutral axis locations of a composite section on the dynamic behaviour of composite floors. It is demonstrated that for a composite section the second moment of area of the section in respect to any assumed location of the neutral axis is always larger than the true value of the second moment of area of the sect...

The paper develops an isotropic and an orthotropic flat plate models for predicting simply and reasonably accurately the dynamic behaviour of composite floors. Based on the observation that the mode shapes of a multi-panel floor are different and complicated but the mode shape of each panel is either concave or convex, the two equivalent flat plate...

The paper identifies an appropriate FE model for determining the dynamic characteristics of a long-span flat concrete floor using natural frequency measurements. The Cardington concrete building was selected for the study because it represents a popular form of concrete construction. The natural frequencies of the floors were measured. Several FE m...