Seismic performance of traditional adobe masonry walls subjected to in-plane cyclic loading

Wu, Feng; Wang, Haitao; Li, Gang; Jia, Jinqing; Li, Hong‐Nan

doi:10.1617/s11527-016-0927-0

Cited by 24 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…e loading device of the test is shown in Figure 4. To simulate the deformation and stress state of the wall under the action of the earthquake, according to [26], the test adopts the load-displacement mixed loading mode. First, the constant vertical force is loaded to the wall and then a cyclic load is applied in the horizontal direction.…”

Section: Loading Device and Loading Systemmentioning

confidence: 99%

Experimental Analysis of Seismic Performance of Masonry Shear Wall Reinforced with PP‐Band Mesh and Plastering Mortar under In‐Plane Cyclic Loading

Zhou

Yang

Zhao

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

Masonry structures are widely used in developing countries due to their low cost and simple construction, especially in remote areas, where there are a large number of houses without seismic measures. These buildings are prone to collapse and cause a lot of casualties, even under the action of small earthquakes. For the reinforcement of this structure, a cheap, effective, and easy-to-construct reinforcement method is urgently needed. Therefore, this article studies the reinforcement method of polypropylene bands (PP-bands). We have carried out low-frequency cyclic loading tests for two PP-band reinforced masonry walls and two compared masonry walls. We mainly studied the influence of PP-band and different compressive strengths of plastering mortar on the masonry wall’s seismic capacity. The seismic indicators mainly studied in this article include ultimate bearing capacity, energy dissipation capacity, stiffness degradation, and hysteresis characteristics. The experimental results show that the PP-band can greatly enhance the seismic capacity of the masonry wall. The ultimate bearing capacity, energy dissipation capacity, and displacement ductility of the PP-band reinforced wall are increased by 38%–48%, 22%–47%, and 138%–226%.

show abstract

Section: Loading Device and Loading Systemmentioning

confidence: 99%

Experimental Analysis of Seismic Performance of Masonry Shear Wall Reinforced with PP‐Band Mesh and Plastering Mortar under In‐Plane Cyclic Loading

Zhou

Yang

Zhao

2020

Advances in Civil Engineering

View full text Add to dashboard Cite

show abstract

“…This paper describes the experimental tests performed on full-scale masonry walls to evaluate the effectiveness of a TRM reinforcement in enhancing the seismic performance of masonry walls. There are some previous studies regarding the in-plane shear behavior of masonry walls, in which different dimensions and vertical preloads are combined [29,33,34]. However, there is hardly any information about the use of TRM to repair and test pre-damaged masonry walls.…”

Section: Introductionmentioning

confidence: 99%

Textile reinforced mortars (TRM) for repairing and retrofitting masonry walls subjected to in-plane cyclic loads. An experimental approach

Torres

Ivorra

Baeza

et al. 2021

Engineering Structures

View full text Add to dashboard Cite

Masonry walls exhibit low tensile strength and high material heterogeneity, which makes them especially vulnerable against cyclic loading conditions, such as those typical in earthquakes. This paper presents the experimental results obtained from tests on three masonry walls reinforced with textile reinforced mortar (TRM) materials subjected to in-plane cyclic loading. These full-scale masonry walls were tested in the LARGE laboratory at the University of Alicante (Alicante, Spain). The walls had been built using a traditional construction technique, with solid clay bricks layered with lime mortar. One specimen was tested and damaged by in-plane cyclic loading and was subsequently strengthened by a vertical layer of TRM with an overlapping of 200 mm. It was then tested again until failure in a second test. In addition, another undamaged specimen had been previously reinforced with the same TRM technique and tested until failure, thus providing a third test. A network of sensors and digital image correlation systems were used to monitor displacements and crack patterns. The comparison between these experimental results made it possible to assess the effectiveness of TRM in restoring the structural integrity of damaged masonry walls and almost doubling their load-bearing capacity under cyclic loads. Conclusions obtained here provide valuable information to the scientific community, architects and structural engineers about the strengthening and repair of severely damaged masonry walls.

show abstract

“…For the seismic vulnerability of masonry wall structures, the key variables are their cyclic behavior, the stiffness' variation and energy dissipation, besides the mechanical properties of the material itself [17]. The effectiveness of TRM on these properties has been assessed in small masonry specimens [18] or full-scale masonry walls [19]. For example, TRM seemed to provide a significant improvement of masonry's strength and deformability [18].…”

Section: Introductionmentioning

confidence: 99%

“…The main objective of the current study is the evaluation of a TRM reinforcement for the purpose of seismic performance enhancement of masonry walls. There are several studies regarding the in-plane shear behavior of massive masonry walls, in which different dimensions and vertical preloads are combined [19,21]. However, there is less information regarding TRM solutions in walls with different openings, which represent weak elements in masonry structures.…”

Section: Introductionmentioning

confidence: 99%

In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars

Ivorra

Torres

Baeza

et al. 2021

Engineering Structures

View full text Add to dashboard Cite

The current experimental study is focused on the mechanical performance of masonry walls under in-plane cyclic shear forces. All specimens were fabricated with a central window, in which the geometry considered the recommendations of the Spanish structural seismic design code. Windows represent a weak area in the masonry structure, in which there are stress concentrations responsible for crack initiation. In order to improve the mechanical strength and ductility, a reinforcement with a Textile Reinforced Mortar (TRM) was used on both sides of the wall. The performance of the unreinforced and reinforced masonry has been discussed in terms of strength and ductility gain, stiffness degradation and energy dissipation capacity. The experimental tests comprised an initial vertical preload, and shear cycles with increasing amplitude.All tests were monitored by means of traditional displacement transducers, and digital image correlation. The analysis of the images showed the time evolution of the overall crack distribution. The TRM effect could be observed as an increase of the mechanical strength (maximum shear from 120 kN to more than 300 kN), higher displacements (drift from 9 to 35 mm), and more energy dissipation (the cumulative energy loss from 2.7 to 12.7 kN•m). In addition, the TRM reinforcements were capable of controlling the crack initiation and growth. The widespread crack along mortar joints observed in the This is a previous version of the article published in Engineering Structures. 2021, 226: 111343.

show abstract

Seismic performance of traditional adobe masonry walls subjected to in-plane cyclic loading

Cited by 24 publications

References 23 publications

Experimental Analysis of Seismic Performance of Masonry Shear Wall Reinforced with PP‐Band Mesh and Plastering Mortar under In‐Plane Cyclic Loading

Experimental Analysis of Seismic Performance of Masonry Shear Wall Reinforced with PP‐Band Mesh and Plastering Mortar under In‐Plane Cyclic Loading

Textile reinforced mortars (TRM) for repairing and retrofitting masonry walls subjected to in-plane cyclic loads. An experimental approach

In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars

Contact Info

Product

Resources

About