Representation of The Masonry Walls Techniques By Using FEM

Abstract

Masonry is one of the oldest building systems used to date, although with the development of building construction methods the principle of linking two materials (bricks and mortar) still is the basis. This system has several advantages, including acceptable appearance, strength, durability, thermal insulation and fire resistance, as well as the ease and speed of implementation. Despite these features, this system of construction remains designed to withstand vertical loads and is sensitive to seismic loads. The seismic performance is assessed by calculating the base shear, drift and comparing it with the standard seismic demand requirements. The main objective of this paper evaluates masonry wall modeling using the representation techniques adopted in literature and use the appropriate technique to represent masonry room by using the ABAQUS software under the seismic load. Results: The results of the numerical analysis using the finite element method with the experimental results of the masonry wall, where a significant convergence was achieved. The total displacement value was 15 mm for the experimental work, while the total displacement value was for micro modeling method 14.32, simplified modeling 14.25 and macro modeling 14.18.As well the results of the macro modeling of room under dynamic load, the maximum displacement found from finite element analysis is 55.51 mm, while the maximum displacement found in the experimental investigation is 60.80 mm. The results showed a great convergence between the techniques of representation. The macro modeling is selected to the representation of the large models as it saves time and effort. As for the analysis of the results, the results were satisfactory under dynamic load. The results were close to the experimental work and proved the efficiency of the ABAQUS program and the suitability of the elements of the program to represent the masonry, rebar and nonlinear properties of the materials.

Numerical Solution for Masonry Wall Using General Static Step with ABAQUS/Standard

“…Then the inelastic deformation, plastic strain, and damage parameters (dc) can be found in Eqs. ( 5)- (7), respectively [39].…”

“…The research results indicated that a 16*16 finite element mesh size was optimal for the task at hand, and intermediate mortar outperformed both stronger and weaker mortar types. In 2017, Abbas and Saeed [7] utilized the ABAQUS software to simulate masonry wall behavior using three modeling approaches: micro, simplified micro, and macro strategies. The macro modeling technique was chosen to represent masonry rooms under seismic load due to its efficiency in reducing time and effort.…”