WebFeb 12, 2024 · Correct determination of masonry deformability is fundamental for evaluating the seismic response of masonry structures. For existing buildings, double flat-jack … WebApr 3, 2024 · ABSTRACT. Flat-jack testing method is one of the most commonly used techniques for the structural assessment of existing masonry structures. Single and double flat jacks are usually adopted to evaluate the acting normal stress, or the compressive behaviour of masonry material.
Investigations on the elasticity modulus of stone masonry
WebApr 1, 2024 · Flat-jack tests include some assumptions: i) the state of stress in the place of the test is compressive, ii) the masonry surrounding the jacks is homogeneous, and it deforms symmetrically around the slots, and iii) uniform stress is applied to the masonry by the flat-jack. The pressure level in the masonry wall is given by Eq. (6). WebApr 20, 2024 · The double flat-jack test is an on-site test used to determine the masonry deformability. It is regulated by RILEM TC 177-MDT.D.5 [26] and ASTM C1197 [27] . It is considered a semi-destructive test because two horizontal slots, through the masonry mortar joints, are made by using an abrasive cutting machine (in case of irregular or … marlowe near me
Flat Jack Test How to perform Flat Jack Test on Stone …
WebSingle flat jack As happens in the case of in-situ tests on masonry, one of the most difficult task is the interpretation and elaboration of the results. As a first step the correct … WebFeb 28, 2024 · Average E m values by flat jack test for random rubble stone masonry was 12.95 and 15.90 GPa for downstream and upstream faces respectively. Average Poisson’s ratio values by flat WebApr 25, 2024 · Flat-jack testing is a versatile and powerful technique that provides significant information on the mechanical properties of historical constructions. ... In-situ compressive stress within solid ... nba tips and tricks