Characteristics of unconfined masonry walls under in-plane static and reverse-cyclic loading: a comparative numerical study

Naseer, Muhammad Asad; Qazi, Asad Ullah; Mughal, Ubaid Ahmad; Ajmal, Muhammad Mubashir; Ahmed, Ali

doi:10.1080/19648189.2023.2206456

Cited by 4 publications

(1 citation statement)

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“…The cement sand mortar and non-shrinkage grout were modeled using a pair of nonlinear spring elements (COMBIN39) and contact elements (CONTA178) arranged sequentially with the spring elements, as illustrated in Figure 5 [35][36][37]. This modeling considers both the material properties and the interaction between the mortar and adjoining pipe structures.…”

Section: Elements Used For Modelingmentioning

confidence: 99%

Joint Behavior of Full-Scale Precast Concrete Pipe Infrastructure: Experimental and Numerical Analysis

Basit,

Abbas,

Ajmal

et al. 2024

Infrastructures

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This study undertakes a comprehensive experimental and numerical analysis of the structural integrity of buried RC sewerage pipes, focusing on the performance of two distinct jointing materials: cement mortar and non-shrinkage grout. Through joint shear tests on full-scale sewer pipes under single point loading conditions, notable effects on the crown and invert of the joint were observed, highlighting the critical vulnerability of these structures to internal and external pressures. Two materials—cement–sand mortar and non-shrinkage grout—were used in RC pipe joints to experimentally evaluate the joint strength of the sewerage pipes. Among the materials tested, cement–sand mortar emerged as the superior choice, demonstrating the ability to sustain higher loads up to 25.60 kN, proving its cost-effectiveness and versatility for use in various locations within RC pipe joints. Conversely, non-shrinkage grout exhibited the lowest ultimate failure load, i.e., 21.50 kN, emphasizing the importance of material selection in enhancing the resilience and durability of urban infrastructure. A 3D finite element (FE) analysis was also employed to assess the effect of various factors on stress distribution and joint deformation. The findings revealed a 10% divergence between the experimental and numerical data regarding the ultimate load capacity of pipe joints, with experimental tests indicating a 25.60 kN ultimate load and numerical simulations showing a 23.27 kN ultimate load. Despite this discrepancy, the close concordance between the two sets of data underscores the utility of numerical simulations in predicting the behavior of pipe joints accurately. This study provides valuable insights into the selection and application of jointing materials in sewerage systems, aiming to improve the structural integrity and longevity of such critical infrastructure.

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Section: Elements Used For Modelingmentioning

confidence: 99%