Experimental study on the in-plane response of cast-in-situ reinforced concrete sandwich walls under combined vertical and horizontal load

Cassese, Paolino; Riascos, Carlos; Rainieri, Carlo; Luca, G. De; Pavese, Alberto; Bonati, Antonio

doi:10.1016/j.prostr.2023.01.101

Cited by 4 publications

(4 citation statements)

References 15 publications

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“…An extensive description of the experimental program is reported in [27]. The cRCSPs considered in this study were composed by two external layers of reinforced sprayed concrete and a central layer of Sintered Expanded polystyrene (EPS).…”

Section: Specimens Procedures and Measuring Systemmentioning

confidence: 99%

“…In addition to the most common and widespread prefabricated version of SPs, cast-in-situ (or sprayed-in-situ) approach is becoming more attractive since it allows to solve relevant construction issues related to transportation and erection of panels, and several research studies are available in literature in this line ( [9]- [11]). Despite the considerable interest concerning castin-situ Reinforced Concrete Sandwich Panels (cRCSPs), so far, no seismic design guideline is available and, moreover, limited research studies focused to a detailed assessment of the inplane cyclic response can be found in literature, thus someway limiting their potential [12].…”

Section: Introductionmentioning

confidence: 99%

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Continuous Strain Field Estimation for Cast-in-Situ Reinforced Concrete Sandwich Walls Under Cyclic Lateral in-Plane Loading

Riascos González,

Cassese,

Occhiuzzi

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Cast-in-situ reinforced concrete sandwich walls represent a promising solution for energy-efficient housing. Nevertheless, their use in earthquake-prone areas is fairly limited because of the lack of seismic guidelines. Furthermore, the evaluation of seismic response of such a structural typology can be partially considered a still open issue. In this study, the in-plane seismic behavior of cast-in-situ reinforced concrete sandwich walls is investigated through cyclic experimental tests on real scale sandwich walls composed of a central layer of insulating material closed between two external reinforced shotcrete layers. Experimental load-displacement curves and observed damage are briefly described. A special focus on the deformative mechanisms of the walls is dealt with. A hybrid experimental-numerical procedure is proposed,to derive continuous strain fields starting from local discrete experimental measures, with promising preliminary results.

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Section: Specimens Procedures and Measuring Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Continuous Strain Field Estimation for Cast-in-Situ Reinforced Concrete Sandwich Walls Under Cyclic Lateral in-Plane Loading

Riascos González,

Cassese,

Occhiuzzi

et al. 2023

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…prevent BIM from being widely used in prefabricated building design and prevent its benefits from being fully realised. The introduction of BIM in 1987 was welcomed with excitement because of its promise to speed up the implementation of prefabricated modular construction [15], a novel strategic approach that departs from the norm of cast-in-situ technologies [16]. Room-sized volumetric pieces are assembled off-site in regulated factories, then transported to construction sites and stacked to create a full, sustainable infrastructure design as part of the re-engineering of construction industry practises.…”

Section: Of 28mentioning

confidence: 99%

Identifying Barriers to Effective BIM Adoption in the Re-Engineering of Construction Business Practices in Developing Countries

Alam¹,

Ali²,

Madni³

et al. 2023

Preprint

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Building Information Modelling (BIM) has been more popular in the construction industry as a consequence of the many advantages it offers, such as increased productivity, improved project outcomes, and reduced expenses. However, there are many obstacles that must be overcome before BIM can be widely used. This research uses a poll of construction industry experts to investigate the challenges associated with using BIM in projects. Cost of implementation, inadequate standards and procedures, and a lack of knowledge with BIM were some of the hurdles that were measured in the study. Statistical techniques were used to examine the data, and the findings indicate that the high cost of implementation and the absence of sufficient standards and procedures are the two main obstacles to the widespread adoption of BIM. Problems with supply chain management and a lack of experience with BIM are also mentioned as obstacles. The report also suggests solutions, such as a more focused teaching effort on BIM-related issues and the creation of a specialised BIM curriculum. Professionals in the construction industry may utilise the study’s results to their advantage by expanding their knowledge of the obstacles standing in the way of widespread adoption of BIM.

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“…In building structures, traditional walls such as masonry or reinforced concrete bearing walls have been widely used as axial load-resisting systems [1,2]. However, the doubleskinned profiled composite wall (DSPCW) system, consisting of two profiled steel sheets (PSS) filled with concrete, has emerged as a more efficient alternative [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Structural Performance of Internally Stiffened Double-Skinned Profiled Composite Walls with Openings

et al. 2023

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The double-skin profiled composite wall (DSPCW) system, filled with concrete material, is favorable in modern structures due to its high strength and ductility. Openings may be required within this composite wall (DSPCW) for various reasons, similar to a conventional bearing wall, which can lead to a reduction in bearing capacity. Therefore, to avoid changes in the geometry, materials, and thickness of this DSPCW wall, a new internally stiffening concept has been suggested by providing embedded cold-formed steel tube (CFST) columns. For this purpose, two full-scale DSPCW specimens were tested under static axial load, one of which was fabricated with a large opening size and stiffened with two octagonal CFST columns, while the other was designed without an opening and served as a control wall specimen. The results showed that the stiffened DSPCW with an opening achieved a slightly lower ultimate bearing strength (−9.4%) than the control wall specimen, with no reduction in the ductility behavior. Furthermore, several finite element models of DSPCW have been analyzed and designed to investigate additional parameters that were not experimentally tested, including the effects of the embedded CFST column’s shape and different types of internal stiffeners longitudinally provided inside these columns. The numerical investigation confirmed that the embedded CFST column with an octagonal cross-section was more efficient compared to the hexagonal and rectangular shapes by about 11% and 18.4%, respectively. Furthermore, using internal steel stiffeners for embedded tubes with a T-shape improved the axial bearing capacity of the DSPCW with an opening slightly higher than the corresponding stiffened walls with other investigated stiffener shapes (V-shaped, U-shaped, and L-shaped).

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Experimental study on the in-plane response of cast-in-situ reinforced concrete sandwich walls under combined vertical and horizontal load

Cited by 4 publications

References 15 publications

Continuous Strain Field Estimation for Cast-in-Situ Reinforced Concrete Sandwich Walls Under Cyclic Lateral in-Plane Loading

Continuous Strain Field Estimation for Cast-in-Situ Reinforced Concrete Sandwich Walls Under Cyclic Lateral in-Plane Loading

Identifying Barriers to Effective BIM Adoption in the Re-Engineering of Construction Business Practices in Developing Countries

Structural Performance of Internally Stiffened Double-Skinned Profiled Composite Walls with Openings

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