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Authored
12 records found
Influence of brick and mortar properties on bioreceptivity of masonry
Results from experimental research
The effect of mortar and brick properties on the growth of ivy-leaved toadflax (Cymbalaria muralis) and yellow corydalis (Pseudofumaria lutea) has been investigated in laboratory. Different mortar compositions were designed and tested in combination with two different bricks. Hig
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Capacity of unreinforced masonry walls in out-of-plane two-way bending
A review of analytical formulations
Investigations of post-seismic events show that the collapse of walls in out-of-plane (OOP) two-way bending can be one of the most predominant failure mechanisms for unreinforced masonry (URM) structures. To assess the force capacity of URM walls in OOP two-way bending, various a
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Core testing method to assess nonlinear shear-sliding behaviour of brick-mortar interfaces
A comparative experimental study
In this study, tests on cores and companion tests on triplets are compared with respect to the evaluation of the nonlinear shear-sliding behaviour of masonry, including the determination of post-peak softening response. Due to its slightly-destructive sampling nature and its good
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A Comparative study on the evaluation of different testing techniques
Evaluating the mechanical properties of masonry
To accurately assess the performance of existing unreinforced masonry (URM) structures, the mechanical characteristics of masonry under compressive loading are required. The compression properties of existing URM can be evaluated through different methods, either performing destr
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The present work aims at providing insights on the material characterization of multi-wythe masonry infrastructure, in particular exploring a through-thickness effect of mechanical properties and benchmarking the core testing as an efficient slightly-destructive testing method. A
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Innovative solutions for seismic-retrofitting existing structures are currently required, as often traditional strategies are expensive, non-reversible, highly invasive, and/or fail to address both serviceability and ultimate limit states together. The present paper describes a p
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Bezwijken Grimburgwal
Leerpunten voor het Amsterdamse areaal
In dit rapport is via een forensic engineering aanpak een eerste analyse gegeven (rapid assessment, RA) van het bezwijken van de Grimburgwal (GBW) op 1 september 2020. Het doel van het onderzoek is om te achterhalen welke lessen zijn te leren van het bezwijken van de Grimburgwal
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Core testing method to assess nonlinear behavior of brick masonry under compression
A comparative experimental study
This study investigates the applicability of the core testing method to assess the complete nonlinear behavior of masonry in compression. A comparative experimental approach was adopted performing compressive tests on cores and companion wallets. Via a correlation study on seven
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Innovative Application of Self-healing Technology to Masonry
A Proof of Concept
Cracks are one of the most common expressions of damage in masonry structures. Aside from aesthetic issues, they can compromise the overall behaviour of the structure; therefore, they are undesirable and need to be repaired. The repointing technique is traditionally implemented i
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Blind prediction of a cyclic pushover test on a two-storey masonry assemblage
A comparative study
In recent years induced seismicity in the north of the Netherlands has considerably increased. The built environment in the region mainly consists of unreinforced masonry (URM) buildings. Those buildings were not designed for seismic loads and have specific characteristics, that
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Shear-sliding behavior of masonry
Numerical micro-modeling of triplet tests
Masonry is a composite material, whose behavior is strongly influenced by the presence of vertical and horizontal mortar joints, weak elements along which the shear failure usually occurs. The scope of the present work was to investigate factors that could affect the shear-slidin
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Investigation of the Shear-Sliding Behavior of Masonry Through Shove Test
Experimental and Numerical Studies
To assess the shear properties of masonry for existing buildings, the shove test method proposed by ASTM C1531 can be carried out, in which the load required to slide a single brick with respect to the surrounding masonry is measured. To control the vertical stress-state on the t
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Contributed
8 records found
Explorative nonlinear pushover analyses for historical unreinforced masonry churches
A case study in Zandeweer, Groningen
In the past decades, gas productions in the province of Groningen in The Netherlands have caused a significant amount of shallow human-induced earthquakes. Its building stock has shown to be highly vulnerable to these unexpected events. Among various building typologies, damage h
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Investigation of the influence of open straight-legged stirrups on the shear resistance of concrete beams
Nonlinear finite element analysis
Nowadays, Rijkswaterstaat reassesses many older concrete bridges to guarantee their structural safety under the influence of increased traffic loads and stricter standards. Many of these concrete bridges contain open straight-legged stirrups, which are not allowed to take into ac
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Numerical prediction of the dynamic properties of a historic masonry structure
A Case Study of The Old Church in Garrelsweer, Groningen
The gas production in the Groningen gas field of the Netherlands has caused a significant amount of shallowhuman induced earthquakes. Among various building typologies, Groningen is home to many Dutch historical churches constructed by unreinforced masonry which has shown to be h
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A comparison study of numerical modeling approaches for simulating the in-plane seismic response of masonry walls
Comparing unreinforced masonry walls with masonry walls retrofitted with the bed-joint reinforcement technique
The extraction of natural gas in the northern part of the Netherlands, from the region of Groningen, has been causing human-induced seismic activities for the past several decades. This is a problem since the existing building stock in this region, which consists of mainly unrein
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In-plane pushover analysis of a quay wall with an uneven pile foundation
The case study of the Grimurgwal
The main motive for this research was to study the behaviour of quay walls when there is an uneven pile foundation present. This means that the number of piles varies in the thickness of the quay wall along the length. The inspiration came from the failure of the Grimburgwal (Ams
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Assessment of Existing Slender Masonry Walls beyond the Scope of the EN 1996 Norm
Numerically Based Analytical Solution to determine the Capacity under combined Vertical and Lateral Loading
In the last decade, maintenance and adaptive reuse, of the existing building stock, have gained ground in the construction sector. For the adaptive reuse of a building, it is required to analyze, meticulously, the existing structure. Unreinforced masonry structures are indicative
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Parametric numerical study on two-way bending capacity of unreinforced masonry walls
Evaluation of the influence of geometric parameters to improve analytical formulations
Investigations on unreinforced masonry (URM) walls subjected to natural hazards, such as earthquakes and wind loads, identify the out-of-plane (OOP) failure as one of the most common failure mechanisms. Concerning the OOP failure, two types of failure mechanisms can be distinguis
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Material characterisation of existing masonry
A strategy to determine strength, stiffness and toughness properties for structural analysis
Understanding the behaviour of unreinforced masonry (URM) structures requires in-depth insight into the mechanical properties of its constituents and their interaction under compression, tension, and shear loading. As a result, a complete picture of masonry characteristics, accou
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