Experimental Seismic Response of a Damaged Brick Cave Dwelling Repaired Using a Cement Mortar Coating with Polypropylene Packing Strap Mesh

Zhang, Feng‐Liang; Liu, Xiguang; Xue, Jianyang; Mahmoud, Hussam; Hu, Pengchun; Zhou, Gengmin

doi:10.1061/(asce)st.1943-541x.0003173

Cited by 6 publications

(5 citation statements)

References 23 publications

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“…The mesh reinforcement is usually applied in discrete parts of the buildings and may be used as emergency repair or as a permanent strengthening method [30]. Some noteworthy applications of mesh in cementitious coatings include the reinforcement of load-bearing masonry in buildings constructed with non-structural blocks, especially in cases of old popular housing buildings [48] when bricks and mortar have low adherence [42] or for reinforcement of cave dwellings [9]. And as retrofit for historic buildings, when the use of epoxy resins is not allowed or suitable, as in stone masonry or reversible applications [3,30,47,49].…”

Section: Strengthening and Retrofittingmentioning

confidence: 99%

“…The crimped steel mesh used by Ghobadi et al [10] had an average ultimate stress of 458 MPa. Polymer, basalt fibers, and hot-rolled ribbed meshes, with similar properties, were also used [9,13,22,42].…”

Section: Strengthening and Retrofittingmentioning

confidence: 99%

“…Mortar coatings also enhance the mechanical behavior of masonries by slenderness reduction, cross-section increase, and stress distribution [6,7]. Masonry performance can be improved even more if reinforcing meshes are embedded in the coating layer, a technique known for its low cost, ease of execution, and high compatibility with multiple materials [8][9][10]. This procedure provides greater mechanical strength for masonries under multiple load conditions and many studies suggest it is suitable for repair, retrofitting, and reinforcement applications, as well as seismic strengthening of non-structural infill walls [7,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Mesh reinforcement in masonry mortar coatings: a systematic literature review

Coelho

Silva

2023

Cerâmica

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Mortar coatings have a major influence on a building's aesthetics, valorization, and habitability, with significant effects on the mechanical behavior of masonry walls. Multiple types of meshes can be embedded in plaster to enhance both masonry and coating's mechanical behavior, restrain crack formation, enhance the bonding between layers, and increase the wall's seismic resistance. The reinforcement technique has simple execution and is suitable for many applications, including the strengthening of non-load bearing walls, façade performance improvement, and restoration of historical buildings. However, there is an absence of guidelines and specifications for design and execution, resulting in high variability in field applications due to the many variables involved and few in-depth studies. This paper presents a systematic review of the effects of mesh reinforcement in cementitious mortar coatings and its major applications. Mortar and mesh parameters and influences, the status of analytical and simulation models, and suggestions for future research are described.

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Section: Strengthening and Retrofittingmentioning

confidence: 99%

Section: Strengthening and Retrofittingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mesh reinforcement in masonry mortar coatings: a systematic literature review

Coelho

Silva

2023

Cerâmica

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“…The internal forces at the vault and foot sections of the right half-arch ring for the hingeless, two-hinged, and three-hinged arches are calculated from Formulas ( 16)-( 18), ( 22), ( 23), ( 31), ( 32), (35), (36), (38) and (39); the absolute maximum values of the internal forces of the sections of the whole right half-arch ring are determined from Formulas ( 21)-( 23) and ( 34)- (39); and the corresponding results calculated by SM Solver are listed in Table 3. As can be seen, the results obtained from the theoretical calculation and numerical simulation are basically the same, and the difference in shear force is too large because the SM Solver adopts some segmental lines to simulate the circular arc arch, and the curved load on the arch ring uses linear distributed load to be applied in segments, which does not exactly match with the actual force, resulting in a deviation from the theoretical calculation results, and the calculation accuracy will be improved if more units are divided.…”

Section: Comparison Of Cross-section Internal Forces In the Arch Ringmentioning

confidence: 99%

“…Cave dwellings, as distinctive Chinese buildings, have attracted quite a few scholars in China to make a series of research on them. Their researches mainly focus on the construction principle [13][14][15], force characteristics [16][17][18], seismic performance [19][20][21][22], thermal insulation and energy conservation [23][24][25], stability analysis [26][27][28][29][30][31][32], and reinforcement and protection measures [33][34][35][36] for loess cliff-side cave dwellings and pit-type cave dwellings, while there are few researches on freestanding stone cave dwellings. Combining with the actual earthquake damage and numerical simulation experiment, Wang Feijian et al [37] put forward that the ratio of vertical displacement of the arch vault to arch vector height should be taken as the damage index of independent cave dwellings under seismic motion.…”

Section: Introductionmentioning

confidence: 99%

Study on Mechanical Calculation Model of Arch Ring in Freestanding Stone Cave-Dwelling

Hao

Lan

2023

Sustainability

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The freestanding stone cave-dwelling is a kind of arched and sheltered house built with stones in the Loess Plateau region of northwest China. Amazingly, before construction, this kind of cave-dwelling was not formally calculated and designed in theory, but only built on the experience passed down by predecessors. The arch ring is the main load-bearing component of the freestanding stone cave-dwelling, through which the upper loads are transmitted to the legs on the left and right sides of the cave-dwelling and then to the foundations. Therefore, it is a prerequisite to ensure the safety of cave dwellings by adopting a reasonable and accurate mechanical calculation model for the arch ring of a stone cave-dwelling to reveal the distribution of internal forces in the arch ring and scientifically design the arch ring accordingly. Three mechanical calculation models (structural calculation diagrams) are adopted for the arch ring of stone cave-dwelling, namely, hingeless arch, two-hinged arch, and three-hinged arch. Based on the force equilibrium and the force method from the structure mechanics, the formulae for calculating the internal force of the stone arch ring under these three different mechanical calculation models are derived respectively. The mechanical calculation results of three calculation models are compared and analyzed to clarify the difference and rationality of the stress results of the arch ring under the three mechanical calculation models and the degree of influence on the force of the lower cave-dwelling leg members. Lastly, in accordance with the internal force calculation results, the calculation formulae for the design of the arch ring thickness are proposed. The study shows that the hingeless arch and two-hinged arch models are more consistent with the actual failure characteristics, two-hinged arch calculation model is safer, more accu-rate, and more reliable than the hingeless arch calculation model when it is used in the mechanical analysis of circular arc arch ring. The findings are intended to serve as theoretical references for the design and construction, protection and reinforcement, and sustainable development and inheritance of cave dwellings in the future.

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