Partially Grouted Reinforced Masonry Piers Under Seismic-Type in-Plane Loads. Experimental Measurements and Non-Linearnumerical Simulations

Manos, George C.; Kotoulas, Lambros; Melidis, Lazaros; Katakalos, Konstantinos

doi:10.7712/120119.6917.19257

Cited by 3 publications

(4 citation statements)

References 3 publications

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“…Additionally, two horizontal channels are formed aiming to host the horizontal reinforcing rebars. The final geometry of this brick unit and the configuration of the holes was designed utilizing extensive material testing combined with a series of numerical studies [13][14][15][16][17]. This work summarizes the most fundamental properties of the masonry unit which went though a preliminary design stage (section 3) in order to attain the desired characteristics before being produced industrially.…”

Section: Methodsmentioning

confidence: 99%

“…The main objective of the present study is to validate the local materials and construction practices towards building earthquake resistant low-rise partially grouted reinforced clay brick masonry structures in areas of moderate seismicity of Greece (Manos et al [1][2]). The following summarizes the main features of the experimental program with partially grouted reinforced clay brick masonry wall specimens [1]. Extensive past research dealt with the performance of partially grouted reinforced masonry walls, when subjected to simulated seismic loads.…”

Section: Introductionmentioning

confidence: 99%

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Reinforced Masonry Piers Built With a Novel Clay Masonry Units Under Seismic-Type Loads

Manos,

Melidis,

Katakalos

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The main features of a study dealing with partially grouted reinforced clay brick masonry wall specimens are summarized here. Results from an experimental campaign studying the inplane behavior of such partially grouted wall specimens, built using novel clay bricks with vertical holes manufactured in Greece, are presented and discussed. All wall specimens were partially grouted at specific locations hosting vertical steel reinforcement. Horizontal (shear) steel reinforcement was also included at the mortar bed joints. These specimens were rigidly attached at a reaction frame and were subjected at their top to a constant vertical load together with a horizontal seismic-type in-plane cyclic load. A key issue in the construction of these wall specimens is the masonry unit which is employed. Due to the thermal insulation requirements as well as the revisions in the provisions of the Euro-Code relevant to the seismic design and construction of unreinforced and reinforced masonry, a novel masonry unit was designed and tested. The design was based on preliminary material tests and a series of numerical simulations. The thermal insulation properties of this new unit were also taken into account in its design as well as the accommodation of the transverse horizontal joint reinforcement that was to be accommodated in a thin layer mortar joint. Summary results of all these aspects in the design and construction of this new masonry unit are present and discussed.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reinforced Masonry Piers Built With a Novel Clay Masonry Units Under Seismic-Type Loads

Manos,

Melidis,

Katakalos

2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…The employment of reinforcing bars to construct earthquake resistant partially grouted masonry structures has been widely investigated. Manos et al [3,4] tested partially reinforced piers with different reinforcing schemes. For the tested piers with a height over length ratio equal to 1 and horizontal reinforcing ratio values larger than 0.085%, the flexural response together with the rather ductile plastic rotation response at the bottom of the wall, similar to a plastic-hinge mechanism.…”

Section: Introductionmentioning

confidence: 99%

In Plane Behavior of Partially Grouted Masonry Walls Using a New Clay Unit. Laboratory Measurements and Numerical Simulations

Manos¹,

Melidis²,

Kotoulas³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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A new innovative clay brick unit is used for the construction of partially grouted masonry walls. This new unit aims to provide both the required mechanical properties and thermal insulating properties. The behavior of masonry specimens constructed with this unit and thin mortar method under in plane loads is discussed here. The basic mechanical properties of the examined construction system are measured by a series of material tests, prism tests under combined shear and compression and wallets under compression tests. The laboratory measurements are compared with the defined by EC6 values. Following, diagonal compression tests were conducted at the Laboratory of Strength of Materials and Structures (Aristotle University of Thessaloniki) to ungrouted and grouted masonry wallets with different reinforcing details employing horizontal reinforcing steel bars placed at the prefabricated holes of the clay unit. The effect of the reinforcing steel bars in the bearing capacity and in the post peak behavior is investigated. Apart from the experimental investigation, numerical models simulating these tests were developed utilizing all the geometrical properties of the specimens and the mechanical properties of the materials used. The numerically simulated behavior resembles the measured load-deformation response of the tested specimens and the observed actual damage at the end of the tests.

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“…The in-plane behavior of such structures has been widely investigated. Manos et al [3,4] tested partially reinforced piers with different reinforcing schemes under in plane cyclic loads. Recent studies investigate the in-plane behavior of reinforced masonry walls using new clay units with the appropriate thermal properties in an effort to improve the structures energy consumption [5,6].…”

Section: Introductionmentioning

confidence: 99%

The Behavior of Partially Grouted Masonry Walls Subjected to Out of Plane Seismic Type Loads. Laboratory Measurements and Numerical Simulations

Manos¹,

Melidis²,

Kotoulas³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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A number of ungrouted and grouted masonry walls were built at the laboratory of Strength of Materials and Structures of Aristotle University using an innovative clay unit vertically perforated. This vertically perforated clay unit was designed and produced with the proper holes in order to host the required horizontal and vertical reinforcing steel bars. At the same time the remaining holes are filled with expanded polystyrene parts capable to provide sufficient thermal insulation and drastically reduce the energy consumption. The specimens constructed with the thin mortar method using a high strength mortar and employing vertical reinforcing bars of different diameters. The measured behavior is depicted here in terms of horizontal applied load versus the horizontal displacement at mid height. Furthermore, numerical models were developed in order to simulate the observed behaviour of the tested specimens by modeling separately the masonry panels as homogenized material and linear beam elements representing the employed longitudinal (vertical) reinforcement. The numerically simulated behavior resembles the measured load-deformation response of the tested specimens and the observed actual damage at the end of the tests.

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Partially Grouted Reinforced Masonry Piers Under Seismic-Type in-Plane Loads. Experimental Measurements and Non-Linearnumerical Simulations

Abstract: COMPDYN 2019 7 th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering M. Papadrakakis, M. Fragiadakis (eds.

Cited by 3 publications

References 3 publications

Reinforced Masonry Piers Built With a Novel Clay Masonry Units Under Seismic-Type Loads

Reinforced Masonry Piers Built With a Novel Clay Masonry Units Under Seismic-Type Loads

In Plane Behavior of Partially Grouted Masonry Walls Using a New Clay Unit. Laboratory Measurements and Numerical Simulations

The Behavior of Partially Grouted Masonry Walls Subjected to Out of Plane Seismic Type Loads. Laboratory Measurements and Numerical Simulations

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