Integrating geomatic approaches, Operational Modal Analysis, advanced numerical and updating methods to evaluate the current safety conditions of the historical Bôco Bridge

Castro, Álvaro Bautista-De; Sánchez-Aparicio, Luis Javier; Ramos, Luís F.; Sena-Cruz, José; González‐Aguilera, Diego

doi:10.1016/j.conbuildmat.2017.10.084

Cited by 42 publications

(27 citation statements)

References 28 publications

(44 reference statements)

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“…In addition to numerical finite element analyses and analytical calculation, nondestructive ambient vibration examinations are widely conducted to get the dynamic features in functioning condition without any external forces. A vast amount of literature can be found regarding the finite element model updating of steel structures, 13–20 reinforced concrete structures, 21–27 base isolated structures, 28 timber structures, 29,30 and masonry structures 31–36 . However, there are very limited studies about the ambient vibration test‐based system identification and FEM updating of concrete steel composite structures 37–39 …”

Section: Introductionmentioning

confidence: 99%

Model updating‐based automated damage detection of concrete‐encased composite column‐beam connections

Nasery

Hüsem

Okur

et al. 2020

Struct Control Health Monit

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Summary This paper presents a comparative study about the numerical and experimental system identification and model updating‐based automated damage detection of concrete‐encased composite column‐beam connections. Four different column‐beam connection types named as CBC#A, CBC#B, CBC#C, and CBC#D were considered without any changes in geometrical configuration. Numerical and experimental dynamic characteristics were extracted by initial finite element analysis and nondestructive experimental measurements for undamaged condition. Enhanced frequency domain decomposition (EFDD) method was used for experimental modal extractions. A good agreement was observed between experimental natural frequencies but not enough correlation between damping ratios for all connection types. Maximum differences between initial finite element and undamaged experimental results were calculated as 34.68% for CBC#A, 40.78% for CBC#B, 33.15% for CBC#C, and 47.13% for CBC#D type connection details. The differences were reduced to 0.24%, 0.24%, 0.16%, and 0.15%, respectively, by automated model updating procedure using spring coefficient, modulus of elasticity and weight per unit volume. In the case of the damaged condition, lateral forces were applied to simulate the effect of an earthquake. Cracks strongly affected the natural frequencies. The mode shapes were not broken evidently after damaged conditions. The mode shapes definitely deviated a bit, but generally the same after damages. The natural frequencies have decreased non‐monotonically due to the decrease in the rigidity of the column and beam at the cracked section. Maximum differences were calculated as 14.96% for CBC#A, 41.08% for CBC#B, 31.35% for CBC#C, and 45.93% for CBC#D type connection details. After automated model updating the above‐mentioned differences were reduced to 0.35%, 0.78%, 0.73%, and 0.85% respectively. Contour diagrams of changes of updating parameters were plotted for damage identification. The regions with high difference rates indicated the location of the damage.

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Section: Introductionmentioning

confidence: 99%

Model updating‐based automated damage detection of concrete‐encased composite column‐beam connections

Nasery

Hüsem

Okur

et al. 2020

Struct Control Health Monit

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“…Modern restoration standards, based on the principles exposed by the last International Charter of Restoration (Charter of Krakow, 2000), highlight the necessity of carrying out multidisciplinary studies to understand historical building from different points of view, i.e., constructive or historical. Within this multidisciplinary context, the Terrestrial Laser Scanner (TLS) has been placed as a potential tool being possible to evaluate the presence of different degradation processes (Del Pozo et al, 2016;Sánchez-Aparicio et al, 2018), as well as to provide the geometrical framework required for the evaluation of its structural stability (Bautista-De Castro et al, 2018;Sanchez-Aparicio et al, 2019). However, these approaches lack efficiency when the complexity of the building increases and many TLS stations are required, demanding massive field campaigns that entail important errors propagation.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study Between WMMS and TLS for the Stability Analysis of the San Pedro Church Barrel Vault by Means of the Finite Element Method

Sánchez-Aparicio

Conde

Maté-González

et al. 2019

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. Stability of masonry constructions is highly conditioned by the geometric disposition of its elements due to its low tensile strength and great compressive mechanical properties. Under this framework, this paper attempts to evaluate the suitability of a wearable mobile mapping solution, equipped in a backpack and based on the well-known simultaneous location and mapping paradigm, for the structural diagnosis of historical constructions. To evaluate the suitability of this device, the structural analysis obtained is compared with a high precision terrestrial laser scanner, which is considered as ground truth. The Romanesque church of San Pedro (Becerril del Carpio, Spain) was selected as a study case. This construction, initially conceived in the XIIIth century, has experimented in the past a soil settlement promoting the leaning of the north wall, several plastic hinges in its barrel vault and a visible geometrical deformation. The comparison of both techniques was carried out at different levels: i) an evaluation of the time needed to obtain the point cloud of the church; ii) an accuracy assessment based on the comparison of a terrestrial network using artificial spheres as checkpoints and; iii) an evaluation of the discrepancies, in terms of safety factor and collapse topology, found during the advance numerical evaluation of the barrel vault by means of the finite element method. This comparison places this wearable mobile mapping solution as an interesting tool for the creation of advanced numerical simulations to evaluate the structural stability of historical constructions.

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“…Preservation and analysis of the archaeological findings: processes in which different techniques are applied in order to check the deterioration suffered by the resource and preserve its conservation [28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

On the Combination of Remote Sensing and Geophysical Methods for the Digitalization of the San Lázaro Middle Paleolithic Rock Shelter (Segovia, Central Iberia, Spain)

et al. 2019

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This paper is focused on the Middle Paleolithic rock shelter called “Abrigo de San Lázaro”, placed in the Eresma River valley (Segovia, Spain). In this area, a multisource geomatic approach is used. On the one hand, the external envelope of the shelter has been digitalized by the means of an efficient combination between aerial photogrammetry and laser scanning (static and mobile). On the other hand, the ground penetrating radar and the electric tomography were used with the aim of evaluating the inner disposition of the shelter. The combination of both digitalization (external and internal) has allowed for improving the knowledge of the site characteristics that, in turn, will facilitate the future excavation works. The results of these studies allow archaeologists to know new data for a better understanding of the site formation (geology of the site, sedimentary potential, rock shelter dimensions, etc.) and the events that took place in it (knowing its historical evolution, especially the interaction between man and the environment). Additionally, the information obtained from these studies is very useful to plan future excavation works on the site.

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Integrating geomatic approaches, Operational Modal Analysis, advanced numerical and updating methods to evaluate the current safety conditions of the historical Bôco Bridge

Cited by 42 publications

References 28 publications

Model updating‐based automated damage detection of concrete‐encased composite column‐beam connections

Model updating‐based automated damage detection of concrete‐encased composite column‐beam connections

A Comparative Study Between WMMS and TLS for the Stability Analysis of the San Pedro Church Barrel Vault by Means of the Finite Element Method

On the Combination of Remote Sensing and Geophysical Methods for the Digitalization of the San Lázaro Middle Paleolithic Rock Shelter (Segovia, Central Iberia, Spain)

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