# Anas M. Fares

## Publications

##### 5 The Effect of Shear Wall Positions on the Seismic Response of Frame-Wall Structures

**Authors:**
Anas M. Fares

**Abstract:**

The configuration of shear walls in plan of building will affect the seismic design of structure. The position of these walls will change the stiffness of each floor in the structure, the diaphragm center of mass displacement, and the drift of floor. Structural engineers preferred to distribute the walls in buildings to make the center of mass almost close enough to the center of rigidity, but to make this condition satisfied, they have many choices: construct the walls on the perimeter, or use intermediate walls, or use walls as core. In this paper and by using ETABS, each case is studied and compared to other cases according to three parameters: lateral stiffness, diaphragm displacement, and drift. It is found that the core walls are the best choice for the position of the walls in the buildings to resist earthquake loads.

**Keywords:**
Seismic,
Reinforced Concrete,
Stiffness,
lateral loads,
shear wall,
drift,
lateral displacement,
ACI code,
ASCE7-16 code

##### 4 Effect of Columns Stiffness's and Number of Floors on the Accuracy of the Tributary Area Method

**Authors:**
Anas M. Fares

**Abstract:**

**Keywords:**
Reinforced Concrete,
Finite Element Method,
Stiffness,
lateral load,
ETABS,
axial loads,
Tributary area method,
multi-floor buildings

##### 3 Effect of Shear Wall Openings on the Fundamental Period of Shear Wall Structures

**Authors:**
A. Touqan,
Anas M. Fares

**Abstract:**

**Keywords:**
Concrete,
modal analysis,
Earthquake-Resistant Design,
SAP2000,
finite element,
shear wall,
fundamental period,
linear analysis,
Rayleigh,
lateral stiffness,
ASCE7-16

##### 2 The Effect of Cracking on Stiffness of Shear Walls under Lateral Loads

**Authors:**
Anas M. Fares

**Abstract:**

The lateral stiffness of buildings is one of the most important properties which define resistance to displacements under lateral loads. Moreover, it has a great impact on the natural period of the structures. Different stiffness’s values can ultimately affect the behavior of the structure under the seismic load and the lateral forces that will be applied to it. In this study the effect of cracking is studied on 2D shell thin cantilever shear wall by using ETABS. Multi linear elastic analysis is conducted with the ACI stiffness modifiers for each analysis step. The results showed that the cracks affect the value of the drift especially at the top of the high rise buildings and this will change the lateral stiffness and so change the fundamental period of the structures which lead to change in the applied shear force that comes from the earthquake. Finally, this study emphasizes that the finite element method can be considered as a good tool to predict the tensile stresses in the elements.

**Keywords:**
Reinforced Concrete,
Cracks,
Stiffness,
lateral loads,
shear wall,
ETABS,
lateral displacement,
ACI code

##### 1 Simplified Equations for Rigidity and Lateral Deflection for Reinforced Concrete Cantilever Shear Walls

**Authors:**
Anas M. Fares

**Abstract:**

**Keywords:**
Rigidity,
lateral loads,
shear deformation,
lateral deflection,
cantilever shear walls,
flexural deformation,
reinforced concrete shear walls,
virtual work theorem

## Abstracts

##### 1 Simplified Equations for Rigidity and Lateral Deflection for Reinforced Concrete Cantilever Shear Walls

**Authors:**
Anas M. Fares

**Abstract:**

**Keywords:**
Rigidity,
lateral loads,
shear deformation,
lateral deflection,
cantilever shear walls,
flexural deformation,
reinforced concrete shear walls,
virtual work theorem