Abstract
In many literatures, studies show that infill’s modify the behavior of framed structures under lateral loads; the contribution of panels is generally neglected in common structural analyses. The structural effect of brick infill is generally not considered in the design of columns as well as other structural components of RC frame structures. The brick walls have significant in-plane stiffness contributing to the stiffness of the frame against lateral load. The lateral deflection is reduced significantly in the infilled frame compared to the deflection of the frame without infill. It is observed that frames with infill produce much smaller deflections as compared to frames without infill. The results reflect the significance of infill in increasing the strength, stiffness and frequency, of the entire system depending on the position and amount of infilling. Lower infilling is noted to provide more stiffness for the system as compared with upper locations. A number of non-linear static (pushover) analyses were performed on proper structural models of the building, considering both bare framed structure and the infilled one, in order to appraise the influence of infill walls on the failure mechanisms. In particular, a sensitivity analysis was performed by assigning different Partial Safety Factors (PSF) to the mechanical parameters of infill walls, in order to investigate their effect on the overall structural response of the building.
Highlights
Masonry is the building of structures from which individual units laid in and bound together by mortar; the term masonry can refer to the units themselves
Masonry walls are more resistant to projectiles, such as debris from hurricanes or tornados
Depending on which materials are used, and how they are located, Reinforced Masonry (RM) walls can be divided into the following classes: confined masonry, reinforced cavity masonry, reinforced solid masonry, reinforced hollow unit masonry, reinforced grouted masonry and reinforced pocket type walls
Summary
Masonry is the building of structures from which individual units laid in and bound together by mortar; the term masonry can refer to the units themselves. The common materials of masonry construction are brick, stone, marble, granite, travertine, limestone, cast stone, concrete block, glass block, stucco, and tile. Most types of masonry typically will not require painting and so can provide a structure with reduced life-cycle costs. Masonry is very heat resistant and provides good fire protection. Masonry walls are more resistant to projectiles, such as debris from hurricanes or tornados. Extreme weather causes degradation of masonry wall surfaces due to frost damage. This type of damage is common with certain types of brick, though rare with concrete blocks. Save for concrete, masonry construction does not lend itself well to mechanization, and requires more skilled labour than stick-framing. Depending on which materials are used, and how they are located, Reinforced Masonry (RM) walls can be divided into the following classes: confined masonry, reinforced cavity masonry, reinforced solid masonry, reinforced hollow unit masonry, reinforced grouted masonry and reinforced pocket type walls
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