This page collects all the scientific articles published by Eng. Arch. Massimo Mariani in the journal Ingenio, a point of reference for information, in-depth analysis and research in the field of Italian engineering and architecture.
The partnership with the platform, cultivated over time, has accompanied the technical-scientific dissemination and professional debate in the sector and has given rise to a series of contributions on consolidation, seismic safety, restoration and structural diagnostics — also on the concept of vertical seismic action and on impulsive Jerk stresses, in collaboration with Eng. Francesco Pugi — eagerly followed by the Italian engineering scientific community.
Seismic
Studies on accelerations, vertical component and impulsive Jerk stresses, and their effects on existing masonry buildings; analysis of Italian and international seismic events.
Acceleration, Jerk and masonry disintegration: seismic effects on existing masonry buildings
The article proposes an innovative methodology for assessing the masonry disintegration of existing buildings, integrating the effect of seismic Jerk. An advanced approach to estimate risk and design interventions…
Read on Ingenio →Accelerations and impulsive Jerk content in the 18 September 2023 earthquake in Marradi: initial considerations
For the seismic event of 18 September 2023 with epicenter in the Municipality of Marradi (Florence), an initial assessment is presented on the accelerations and on the impulsive or high-frequency jerk content for the components…
Read on Ingenio →Accelerations and Jerk in the 6 February 2023 seismic event in Turkey and Syria: initial considerations
This study on the seismic event of 6 February 2023 in Turkey and Syria proposes an initial assessment of the accelerations and their impulsive content (Jerk), in order to evaluate their magnitudes and the relationships between…
Read on Ingenio →Seismic Jerk and impulsive stresses: design of masonry strengthening
In this article, after a framing of Jerk and its effects on structures, a design procedure is proposed for the first time concerning the construction details of existing buildings in…
Read on Ingenio →Seismic engineering can win. Interview with Massimo Mariani
The studies on the negativity of the vertical component of the earthquake, on impulsive Jerk stresses and on the memory of damage received by structures, have contributed, together with his professional activities on…
Read on Ingenio →Vertical seismic action: modeling and analysis in professional practice on existing masonry buildings
Finally possible to design considering all horizontal and vertical seismic components, in compliance with current regulations
Read on Ingenio →Vertical seismic action: amplification of the vulnerability of existing masonry buildings
Studies and analyses on the consequences of vertical seismic action in accordance with the D.M.17.1.2018 Regulation and its Circular, and description of a modeling and calculation methodology usable in the field…
Read on Ingenio →The memory of earthquake damage: I will meet professionals in the places of major Italian earthquakes
The presentation of the tour of meetings with Italian professionals
Read on Ingenio →JERK: the effects of impulsive seismic actions and local crises in masonry structures
The jerk, the first derivative of seismic acceleration and the third of displacement, so far scarcely considered, is the fundamental component of impulsive actions corresponding to the high-frequency content of the motion…
Read on Ingenio →JERK: Effects of impulsive seismic actions and local crises in masonry structures
What is Jerk? here is a brief definition.
Read on Ingenio →Structural ductility, masonry disintegration, memory of earthquake damage: how to delve deeper into these topics
3 meetings with Massimo Mariani to understand more
Read on Ingenio →The vertical seismic component must always be considered because it is relevant near and far from the source
The analysis of the accelerograms of instrumented earthquakes from 1976 (Friuli) to today, carried out in this article, demonstrates the simultaneity of the horizontal and vertical components, both in areas near the…
Read on Ingenio →"Vertical seismic action" in the NTC 2018: existing buildings and "expected" structural behavior
Further reflections on existing masonry buildings and the need to consider the vertical seismic action in relation to the "expected" structural behavior, as required by current regulations
Read on Ingenio →Circular NTC2018: "vertical seismic action" to be considered in both static and dynamic nonlinear analyses
Studies on the negative effects of the vertical seismic component have found proper recognition in the new Circular of the NTC2018.
Read on Ingenio →NTC2018 Circular: finally design must consider the vertical seismic action
Studies on the negative effects of the vertical seismic component have found proper recognition in the new Circular.
Read on Ingenio →Negative effects of vertical seismic action on the behavior of existing masonry walls
The vertical component of the earthquake is often neglected in assessments of existing masonry buildings, but it can decisively affect normal stresses and therefore ductility and the capacity to…
Read on Ingenio →The Journey with Massimo Mariani through the places of the great Italian earthquakes has begun
Today live video at 2:30 PM from Messina
Read on Ingenio →EARTHQUAKE and CHAOS: a new path for analyzing seismic behavior
A new way of interpreting the behavior of masonry buildings subjected to earthquakes.
Read on Ingenio →Collapse of masonry structures following an earthquake: a new interpretation is needed
In the interview with Massimo Mariani, CNI Councilor and Seismic Risk Expert, a new reading and interpretation of the failure and collapse mechanisms under seismic action of masonry structures. Fatigue phenomena,…
Read on Ingenio →Construction Details
Executive details of interventions on masonry buildings: encircling frames, restraints and connections, roofs and stairs, documented with construction drawings.
Sliding and fixed restraints for the main roof framing in the consolidation of masonry buildings and interventions on stairs
Improving restraints and connections without altering existing structures is the principle shared by three interventions on masonry buildings: the reinforcement of a staircase, the reduction of structural interferences in the…
Read on Ingenio →Reinforcement of openings in masonry buildings with flat steel sections avoiding demolition of jambs and lintels
The article shows three interventions dedicated to the reinforcement of openings, the strengthening of arches and lintels, and the consolidation of an opening in a slender load-bearing masonry wall damaged by the earthquake.
Read on Ingenio →Steel reinforcement for doors and windows in masonry buildings: strengthening, new openings and minimally invasive interventions
Three applied cases illustrate the use of steel sections for the local consolidation of openings in masonry buildings: from the strengthening of lintels to the reinforcement of existing openings, up to…
Read on Ingenio →Masonry vaults: consolidation techniques with reinforced stitching, reinforced plaster and collaborating slabs
Exposed masonry vaults and brick vaults require consolidation interventions capable of combining structural safety, conservation and improvement of seismic behavior. In this article, we…
Read on Ingenio →Vaults damaged by "false" loads and hydrogeological instability: techniques for structural consolidation
Through the analysis of three case studies, consolidation strategies are presented, accompanied by construction details, design drawings and operational indications to support the design of the interventions.
Read on Ingenio →Consolidation of damaged masonry arches and vaults: three intervention methods
Three structural consolidation intervention methods for the recovery of damaged masonry arches and vaults are illustrated: stiffening of arches by means of steel sections anchored to the load-bearing masonry,…
Read on Ingenio →Consolidation of masonry vaults: replacement of altered fillings, collaborating slabs and reinforced connections
Three intervention examples, accompanied by design drawings, illustrate effective solutions to improve static and dynamic behavior without altering the original equilibrium, offering technical details and…
Read on Ingenio →Containment of deformations in masonry and their confinement: interventions with tie-band systems and reinforced stitching
In masonry buildings, the loss of connection between walls, floors and facades generates out-of-plane deformations and local failures. The combined use of tie-band systems, reinforced stitching and structural plaster…
Read on Ingenio →Structural strengthening with steel tie-band systems for masonry buildings with deficient connections
In masonry buildings with deficient connections between walls and floors, out-of-plane mechanisms constitute one of the main seismic vulnerabilities. The article presents strengthening interventions with tie-band systems…
Read on Ingenio →Making historic masonry buildings safe: temporary fixings with expanding polyurethane and steel shoring works
After a seismic event or in the presence of evolving crack patterns, the priority is to prevent the activation of detachments and local mechanisms that can evolve into partial collapses. The combined use of fixings…
Read on Ingenio →Post-earthquake safety measures for masonry, facades and vaults with steel and polyurethane
In masonry buildings hit by earthquakes, the loss of interlocking between walls and the risk of overturning of facades require immediate containment interventions. Steel lattice structures,…
Read on Ingenio →Bracing systems with steel scaffolding, internal and external to buildings, assisted by tensioned cables
In masonry buildings hit by earthquakes or affected by progressive instability, the activation of out-of-plane mechanisms and the loss of local equilibrium require urgent safety measures. The systems…
Read on Ingenio →After the earthquake: securing masonry churches with UPN profiles, struts and steel cables
In masonry buildings hit by earthquakes, controlling out-of-plane mechanisms and masonry disintegration is a priority for safety. Two case studies illustrate temporary securing systems…
Read on Ingenio →Structural supports for masonry: scaffolding assisted by catenary steel cables placed under tension
In masonry buildings hit by earthquakes, containing out-of-plane mechanisms and local instability is a priority for safety. The use of metal frames and catenary steel cables allows…
Read on Ingenio →“STRENGTHENING and RESTORATION INTERVENTIONS on MASONRY buildings. CONSTRUCTION DETAILS”. The new book by MASSIMO MARIANI
A book that collects construction details of strengthening and restoration interventions on masonry buildings and offers solutions resulting from scientific research and field experience, with a focus on…
Read on Ingenio →Strengthening and Restoration of buildings: the construction details of Massimo Mariani's interventions
A collection of construction details of reinforcement, strengthening and restoration interventions on existing masonry buildings or parts of buildings, carried out by Eng. Massimo Mariani and published on INGENIO.
Read on Ingenio →Structural Reinforcement
Techniques for reinforcing masonry, vaults, floors and roofs with steel, reinforced repointing, reinforced plaster and connection systems.
Reinforced repointing and reinforced plaster, evolution of connection systems in the strengthening of historic masonry
The NETFIX STEEL MATRIX system by CVR S.p.A. integrates reinforcement techniques of reinforced repointing with stainless steel strands and reinforced plaster with G.F.R.P. meshes, through an innovative connection system…
Read on Ingenio →Steel structures for the strengthening of barrel vaults: the use of cable-stayed beams with cables and anchors on masonry
The strengthening of barrel vaults sometimes requires particular structural solutions. This article analyzes the use of cable-stayed beams with steel cables, with tie rods anchored to the masonry…
Read on Ingenio →Structural strengthening interventions with steel on the top part of a building, on floors, columns and walls
The article describes, through numerous construction details, a structural strengthening intervention in a historic building, with the stiffening of steel floors, wrapping of columns and the addition of…
Read on Ingenio →Reinforcement of wooden beams using steel cables
Description of a method for strengthening wooden beams using pre-stressed steel cables, illustrated through construction details and variants of the system. The method described is…
Read on Ingenio →Strengthening of barrel vaults with steel and fiber-reinforced mortar: construction details
This article describes a structural consolidation intervention on a barrel vault, the result of the author's research and field experience, taken from one of his projects and expressed with the…
Read on Ingenio →Construction details of strengthening interventions on wooden floors with steel beams, cables and tie rods
In this article Massimo Mariani addresses the topic of consolidating wooden floors through the use of steel beams, cables and tie rods, through a series of very useful construction details (of which…
Read on Ingenio →Strengthening of reinforced concrete and steel floors using steel sections: the construction details
In this article eng. Massimo Mariani addresses the topic of structural strengthening of reinforced concrete and steel floors carried out at their intrados and in the upper slab by means of flat sections,…
Read on Ingenio →Framing of openings in masonry structures: construction details
In this article Massimo Mariani addresses the topic of framing openings in masonry buildings using flat steel sections, with a series of very useful construction details downloadable in PDF…
Read on Ingenio →Floor strengthening of masonry buildings with reinforced stitching bands and reinforced plaster: construction details
In this article eng. Massimo Mariani addresses the topic of external reinforced stitching bands and internal reinforced plaster for the floor strengthening of masonry buildings having an “exposed” face…
Read on Ingenio →Structural strengthening with steel band-ties: construction details and "Massimo Mariani Method-Device”
An in-depth look at structural strengthening with steel band-ties and the use of the “Massimo Mariani Method and Device” through a series of design drawings. Within each detail drawing will be…
Read on Ingenio →Consolidation of a floor made partly of wood and partly of steel
Description, through a series of construction details, of a strengthening intervention at the intrados of a floor of a building subject to a preservation order, with the particularity of having, for half, a load-bearing structure in…
Read on Ingenio →Structural failures of the superstructure: construction details of temporary works
Construction details relating to the support of a structure damaged by the earthquake, on the verge of collapse, by means of rigid closed-cell polyurethane foam, sprayed internally and externally at a distance and…
Read on Ingenio →Consolidation interventions on wooden trusses with steel
The article is part of the series of in-depth studies dedicated to the consolidation of wooden structures, with a strongly operational approach. Trusses represent one of the most delicate elements of building…
Read on Ingenio →Restoration and Conservation
Knowledge, consolidation and conservation of historic buildings and ancient masonry, between structural safety and heritage protection.
Vulnerable historic masonry, Mariani: why the NTCs must be changed
Ineffectiveness of the linear oscillator theory of the seismic dynamics of vulnerable masonry structures without a prior intervention to restore their integrity.
Read on Ingenio →Collapse of the Torre dei Conti. The hidden fragilities of historic masonry: equilibria that can suddenly change
Following the collapses that occurred at the Torre dei Conti in Rome, we spoke with Eng. Massimo Mariani, one of the most experienced figures on the subject of historic masonry buildings. Not to formulate assessments…
Read on Ingenio →Historic places of worship: knowledge, strengthening and conservation
Structural safety and conservation of cultural heritage: a possible balance? In a country with high seismicity like Italy, where there are more than 100,000 historic places of worship, reconciling protection…
Read on Ingenio →Inheriting the architecture of the Modern. Knowledge, restoration and reuse of the 20th century
Restoration, materials, reuse and protection of 20th-century architecture: a cultural seminar dedicated to architects and engineers analyzed the opportunities and critical issues of the Restoration of the Modern. Watch the presentations again and…
Read on Ingenio →Strengthening and restoration works on vaults in masonry buildings: the design drawings
The strengthening of masonry vaults represents one of the most delicate topics in interventions on existing buildings. The solutions must guarantee structural safety without altering the static behavior…
Read on Ingenio →Doubling of restoration and reconstruction contributions for historic buildings with the new ordinance
With the new Ordinance 166 of the Commissioner for post-2016 earthquake reconstruction, there are new contributions and simplified procedures for buildings of historic, artistic and cultural interest, even if not…
Read on Ingenio →Bringing new life to the existing by starting from a careful reading of the origins of the structural system
Our Engineering of Strengthening and Restoration of buildings must move away from evanescent modeling on masonry systems whose behaviors can come closer to the laws of "chaos" and…
Read on Ingenio →Strengthening and restoration of timber trusses: construction details
This article presents structural strengthening works on timber roofs resulting from the author's field research, taken from his projects and expressed with the detail of the construction details…
Read on Ingenio →SEISMIC: Massimo Mariani new President of the Sisto Mastrodicasa Study Center
He succeeds Antonio Borri, who becomes Honorary President
Read on Ingenio →Structural interventions
Cases of strengthening of connections, floors, vaults and roofs, with executive details and technical solutions.
Deficiencies in connections in masonry buildings: cases of strengthening with steel tie-rods and bands
In masonry buildings, in the event of an earthquake, deficiencies in the connections between orthogonal walls and floors generate out-of-plane lesions and deformations. The insertion of steel tie-rods and bands, anchored with drill holes…
Read on Ingenio →The reinforcement of a timber floor with steel beams, cables and turnbuckles
In timber floors, deformations and losses of flatness are often linked to flexural relaxation phenomena of the secondary framing (joists) and of the primary one. In these cases the reinforcement…
Read on Ingenio →Structural strengthening of steel floors and brick vaults. Construction details of the intervention
Steel floors with brick vaults sometimes present deficiencies in load-bearing capacity, stiffness and seismic response. Strengthening by means of collaborating slabs in lightweight concrete, such as…
Read on Ingenio →Consolidation of masonry structures: reinforced perforations, reinforced plaster, metal strapping and column reinforcement
The consolidation of existing masonry requires targeted interventions based on the crack pattern and deficiencies in the connection between structural elements. Techniques such as reinforced perforations, plaster…
Read on Ingenio →Increasing the strength of load-bearing masonry with reinforced repointing. Construction details
Improving the strength of existing load-bearing masonry requires techniques compatible with the original bond pattern and capable of increasing mechanical capacity without altering the overall behavior. The…
Read on Ingenio →Repair of deteriorated parts of wooden beams at the restraints on masonry walls
Deteriorated wooden beams at the supports can be repaired without replacing the entire element and, in several cases, without dismantling the floor. The intervention requires the removal of the wood…
Read on Ingenio →CRM - Composite Reinforced Mortar
Reinforcement systems with CRM reinforced plaster: interaction between GFRP meshes and structural mortars, experimental research and material optimization.
Material optimization in the CRM technique: experimental research for the study of the interaction between GFRP meshes and fiber-reinforced structural mortars
In this article, the results of a study that analyzed the interaction phenomena at the interface between GFRP meshes and structural mortars in the context of consolidation using CRM systems. Thanks to numerous…
Read on Ingenio →Interaction between GFRP meshes and structural mortars in reinforcement systems with CRM reinforced plaster. Guidelines for design
An innovative research study analyzes the interaction phenomena at the interface between GFRP meshes and structural mortars in the context of consolidation using CRM systems. Thanks to numerous experimental tests, findings emerged…
Read on Ingenio →Campi Flegrei
Analysis of the Campi Flegrei seismic sequence: accelerations, Jerk and possible effects on buildings in the bradyseismic area.
Campi Flegrei seismic sequence: studies on accelerations, jerk and possible effects on buildings due to damage accumulation
The Campi Flegrei seismic sequence continues. In this article, the analysis of accelerations and the impulsive or high-frequency jerk content for the event of October 2, 2023.
Read on Ingenio →Campi Flegrei earthquake of 27.09.2023: acceleration and Jerk in the epicentral area of bradyseism
For the seismic event of September 27, 2023 in the Campi Flegrei, a preliminary assessment of accelerations and the impulsive or high-frequency jerk content is presented.
Read on Ingenio →Foundation Consolidation
Interventions on foundations, from the outside or inside of the building, with small-diameter piles and related construction details.
Consolidation of foundations from the outside or inside of the building using small-diameter piles
Description of the construction details of some foundation consolidation interventions carried out using small-diameter piles executed outside and/or inside the building.
Read on Ingenio →Foundation consolidation of a masonry building: construction details
This article describes an intervention for the consolidation of the foundations of a load-bearing masonry building that exhibited foundation settlements and other defects. Through a series of detail drawings…
Read on Ingenio →Soil Consolidation
Stabilization of landslides and unstable slopes with reinforced concrete piles and geotextile-reinforced earth embankments.
Consolidation of a landslide with large-diameter reinforced concrete piles free at the top, adopting the Fukuoka method in the modeling
The article describes the consolidation work on a landslide that damaged a monumental complex, caused by an excavation for a building downstream. 101 large-diameter reinforced concrete piles were installed…
Read on Ingenio →Geotextile-reinforced earth embankment and intervention on an unstable slope
The article describes some safety interventions on unstable slopes through the use of earth reinforced with reinforced geotextile. Inside, also through design tables, some aspects are illustrated…
Read on Ingenio →Profession
Awards and appointments of Massimo Mariani in the professional representation of engineers, in Italy and in Europe.
Massimo Mariani, new President of the European Council of Civil Engineers
Massimo Mariani, new President of the European Council of Civil Engineers
Read on Ingenio →Massimo Mariani appointed President of the European Council of Civil Engineers
Massimo Mariani was appointed President of the European Council of Civil Engineers last October 18
Read on Ingenio →Wooden Constructions
Consolidation of trusses and timber structures with struts and reinforcements.
Consolidation of trusses: intervention on the rafters with wooden struts supported by steel cables
The article illustrates a consolidation technique for wooden trusses with deformed rafters, using wooden struts supported by steel cables. This method allows the structure to be reinforced without…
Read on Ingenio →Hydrogeological Instability
Prevention of hydrogeological instability and land protection policies.
Prevention and politics
But prevention is frankly difficult in a territory like ours: geologically young, in continuous surface and coastal erosion, in continuous tectonic settling and with disastrous events…
Read on Ingenio →Geology and Geotechnics
Geotechnical culture as the basis of seismic prevention and land protection.
Massimo Mariani: geotechnical culture at the basis of seismic prevention and land protection
INTERVIEW WITH ENG. MASSIMO MARIANI, CNI ADVISOR Massimo Mariani, CNI advisor, was interviewed by the INGENIO editorial team...
Read on Ingenio →Structural Engineering
Seismic safety of existing buildings and the need to update the Technical Standards.
Vulnerable masonry and seismic risk: why the Technical Standards must be revised
Vulnerable masonry undergoes a progressive disintegration during the seismic event, retains the memory of the damage caused by previous earthquakes and manifests a continuous reduction in ductility, up to…
Read on Ingenio →Structural Strengthening Mortars
Structural mortars for reinforced plasters: behavior under cyclic dynamic stresses.
Structural mortars for reinforced plasters: study of the effects of cyclic dynamic stresses on materials
Analysis of the accumulation of the memory of deformations undergone by mortars during the repetition of stresses. Hysteretic dissipation curves.
Read on Ingenio →Masonry
Safety of old buildings and masonry aggregates: room for improvement.
Mariani, CNI: the safety of old buildings and aggregates can be improved
It is possible to intervene on old buildings and aggregates, similar to those hit by the earthquake
Read on Ingenio →Cracking Problems
Interpretation of lesions and structural distress: analysis of causes.
The interpretation of structural distress in buildings: the analysis of the causes of lesions in masonry
Eng. Massimo Mariani, among the leading experts in the consolidation and restoration of buildings, explains how to analyze and interpret lesions and cracking phenomena in masonry, which can be caused by…
Read on Ingenio →