Juan Murcia-Delso

Juan Murcia-Delso
Universitat Politècnica de Catalunya | UPC · ETSECCPB - School of Civil Engineering of Barcelona

PhD

About

35
Publications
11,028
Reads
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329
Citations
Citations since 2016
23 Research Items
288 Citations
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20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060

Publications

Publications (35)
Article
Full-text available
The increase in strength of Steel Fiber Reinforced Concrete (SFRC) depends mainly on factors such as the dosage, aspect ratio and number of hooked ends of the fibers. Previous studies proposed models to estimate the flexural and shear strength of SFRC beams, but the shear behavior of SFRC panels has not been extensively studied. The study includes...
Poster
Full-text available
The beam-truss model (BTM) in the finite element program FE-Multiphys won the 2022 UCLouvain Blind Prediction Competition on the Cyclic Response of RC U-shaped Walls Weblinks related to the competition as well as to the BTM in FE-Multiphys computational framework follow: Competition Results Announcements and Videos https://uclouvain.be/en/resear...
Conference Paper
This paper presents an accurate, simple and computationally efficient method called the beam-truss model (BTM), for the computational seismic performance assessment and design of reinforced concrete (RC) structural wall buildings. The BTM has been extensively validated through a number of prior studies, and its capability to enable the accurate sim...
Article
Full-text available
This paper presents a study on the in-plane shear response of partially-grouted reinforced masonry walls with bond-beam reinforcement. A database of 95 tests on partially-grouted walls made of concrete hollow blocks was compiled from experimental studies reported in the literature to characterize the capacity and damageability of walls subjected to...
Article
This paper presents a detailed finite element modeling scheme to simulate the cyclic response of RC columns considering low-cycle fatigue and bond-slip of reinforcement. The modeling scheme includes a triaxial constitutive model recently proposed in the literature to simulate concrete failure under cyclic loading. For steel, a commonly used uniaxia...
Article
Full-text available
This paper introduces a new approach for the seismic performance evaluation of planar RC walls. Compared to existing assessment guidelines, such as those in ASCE/SEI 41-17, where performance limits are described by plastic rotation or lateral drift, the proposed method uses local (strain) quantities, obtained from computational models. The analyses...
Article
Iron-based shape memory alloys (Fe-SMA) have shown a strong potential for strengthening applications in concrete structures. This paper presents an experimental study on the bond strength and bond-slip behavior of ribbed Fe-SMA bars embedded in concrete. A total of nineteen pullout tests were conducted to study the bond behavior of 16-mm Fe-SMA bar...
Article
Full-text available
The 19 September 2017 Puebla–Morelos earthquake provides a unique opportunity to (a) study the effectiveness of seismic rehabilitation methods implemented in Mexico City after 1985 and (b) collect large amounts of data on current building rehabilitation practices. This article presents and discusses seismic rehabilitation efforts conducted on concr...
Article
This paper presents an analytical model to determine the bar slip and pullout capacity of straight bars embedded in wellconfined concrete. The model provides a closed-form solution of the slip experienced at the loaded end of a bar, which can be used to compute the end rotation of flexural members. The slip equations are obtained from the strain pe...
Article
Fragility functions are a key component of performance-based earthquake engineering methodologies. They relate the response of the building, quantified by means of engineering demand parameters (EDPs), with the probability of reaching or exceeding different levels of damage in structural or nonstructural components. This paper develops fragility fu...
Conference Paper
Full-text available
Fragility functions are a key component of performance-based earthquake engineering methodologies. They relate the response of the building, quantified by means of engineering demand parameters (EDPs), with the probability of reaching or exceeding different levels of damage in structural or nonstructural components. This paper develops fragility fu...
Chapter
This paper presents an investigation on the bond-slip behavior and development of large-diameter bars embedded in well-confined concrete under seismic load conditions. Bond-slip tests and bar pull-push tests were conducted to characterize the bond strength, cyclic bond deterioration, and tension development of large-diameter bars up to No. 18 in si...
Conference Paper
p>The 1985 Mexico City earthquake resulted in extensive damage and collapse of concrete construction. In the months and years following this earthquake, there was an unparalleled effort to repair and retrofit concrete buildings. On September 19, 2017, a new strong earthquake struck Mexico City. This event represented the first severe test for concr...
Conference Paper
p>This paper presents results of an ongoing study on the seismic performance of a retrofitted concrete building located in the soft soil area of Mexico City. The original structure consisted of reinforced concrete frames in two directions. The building was repaired and retrofitted after having been damaged during a moderate earthquake in 1979. The...
Conference Paper
Full-text available
Nowadays, the condition assessment of roadway bridges is mainly performed using visual inspection techniques and more rarely through the use of non-destructive tests or structural health monitoring methods. In order to identify, how feasible can be the integration of the seismic hazard in the condition assessment process of a roadway bridges, the f...
Article
This paper presents results of an investigation on the development of headed bars extending from a column into the slab of a reinforced concrete slab bridge. Three full-scale slab-column specimens were tested under quasi-static cyclic lateral loading to determine the minimum embedment length required for the headed bars to develop their full tensil...
Article
This paper presents a numerical investigation to examine the bond-slip behavior of column longitudinal reinforcing bars embedded in oversized pile shafts and to determine the minimum embedment length required for the column bars to prevent anchorage failure. Three-dimensional nonlinear finite-element models of column-pile assemblies incorporating t...
Article
The behavior of reinforced concrete structures under severe demands, as strong ground motions, is highly complex; this is mainly due to the complexity of concrete behavior and to the strong interaction between concrete and steel, with several coupled failure modes. On the other hand, given the increasing awareness and concern on the worldwide seism...
Article
This paper presents an interface element formulation for modeling dowel action and bond-slip behavior of steel reinforcing bars in the finite element analysis of concrete structures. The interface connects steel bar elements to concrete elements, and allows bar elements to have a smaller size than the concrete elements to which they are connected,...
Conference Paper
Full-text available
This paper summarizes the main findings of two experimental and numerical investigations to develop new seismic design recommendations to minimize the development length of bridge column longitudinal bars. The first study was to determine the minimum embedment length required for longitudinal reinforcement extending from a bridge column into an enl...
Article
This paper presents an experimental investigation to determine the embedment length required for longitudinal reinforcement in a bridge column extending into an oversized pile shaft, and the amount of transverse reinforcement required for the pile shaft to prevent premature bar anchorage failure due to concrete splitting induced by bar slip. Four f...
Conference Paper
Full-text available
This paper presents results of an experimental and analytical investigation conducted at the University of California, San Diego to improve the seismic design of column-enlarged pile shaft connections. Four full-scale column-shaft assemblies were tested under quasi-static cyclic lateral loading to study the minimum embedment length required for col...
Conference Paper
This paper presents the three-dimensional finite element analysis of squat RC walls using a continuum constitutive model for concrete developed at ANATECH. The concrete model is based on the smeared-cracking concept and an elastic-plastic formulation that permits the simulation of cracking and other particular response characteristics of concrete....
Article
Full-text available
This paper presents a study on the tension development length of large-diameter reinforcing bars embedded in well-confined concrete. Pull-push tests were conducted on No. 14 and 18 (43 and 57 mm) bars to evaluate whether the development length requirements in the AASHTO LRFD Specifications are adequate for large-diameter bars subjected to severe cy...
Article
This paper presents a new interface model to simulate the cyclic bond-slip behavior of steel reinforcing bars embedded inconcrete. A multi-surface plasticity formulation is used to model two major inelastic deformation mechanisms occurring in bond slip.One is the crushing and shearing of the concrete between the bar ribs, and the other is the slidi...
Article
A new interface model to simulate the bond-slip behavior of reinforcing bars is presented. The model adopts a semiempirical law to predict the bond stress-versus-slip relations of bars, accounting for the bond deterioration caused by cyclic slip reversals, the tensile yielding of the bars, and the splitting of concrete. The wedging action of the ri...
Article
Full-text available
A study on the bond strength and cyclic bond deterioration of large-diameter reinforcing bars embedded in well-confined concrete is presented. The study included monotonic pullout tests and cyclic pull-pull tests conducted on No. 11, No. 14, and No. 18 (36, 43, and 57 mm) reinforcing bars. The bond stress-slip relations obtained from the tests are...
Conference Paper
Full-text available
Foundation shafts that are continuous with columns are used frequently in reinforced concrete bridges because of the convenience in construction. The California Department of Transportation (Caltrans) classifies foundation shafts into Type I and Type II. A Type I shaft has the same diameter as the column it supports, and has its longitudinal reinfo...
Article
Fragility functions have been developed to evaluate the damageability of fully grouted and partially grouted reinforced masonry shear walls subjected to in-plane seismic loading. Six damage states are considered, representing different levels of flexure, diagonal shear, and sliding shear damage. For each damage state, two classes of fragility funct...
Conference Paper
Full-text available
This paper presents the results of a study on the bond strength and development length of 35 mm, 43 mm, and 57 mm reinforcing bars embedded in well-confined concrete. The first phase of this study included monotonic pull-out tests and cyclic pull-pull tests on bars with a short embedment length. The local bond strength and bond stress-vs.-slip rela...
Article
Full-text available
Santa Maria del Mar és una joia arquitectònica construïda en només 50 anys en un estil gòticpur i sobri. Acabada a finals del segle XIV, l’edifici inclou innovacions estructurals moltinteressants compartides només, entre totes les construccions gòtiques, amb les catedrals deBarcelona i Mallorca. Aquest edifici es caracteritza per tenir 3 naus i no...
Article
The influence of stress-reduction methods on the strength of adhesively bonded joints composed of brittle adherends was studied. Experimental and numerical investigations were carried out on two types of adherends: (a) fibre reinforced polymers and (b) timber, considering three different stress-reduction methods: (i) adhesive roundings, (ii) chamfe...
Conference Paper
Full-text available
Structural analysis of two important Gothic constructions in Spain (Santa Maria del Mar Church in Barcelona and Mallorca Cathedral at Palma) has been performed. A 3D Finite Element model of a typical bay for each building has been adopted in conjunction with a tension-compression distributed damage model. Nonlinear analysis both for vertical gravit...
Conference Paper
The studies carried out on three Gothic structures, namely Mallorca Cathedral and the churches of Santa Maria del Mar and Santa Maria del Pi in Barcelona, are described These structures are located in moderate seismic regions, with a/g below 0.08 or 0.04 according to the European-Mediterranean Seismic Hazard Map. The studies aimed at a general unde...

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