Daniel Caicedo

University of Minho · Departamento de Engenharia Civil (DEC)

Traditional unreinforced masonry structures are extremely vulnerable to seismic events, featuring large losses in many countries worldwide. This study focuses on the seismic assessment of a traditional masonry structures located in Faial Island—Azores (Portugal), which was hit by an earthquake of M w = 6.2 on 9 July 1998. A set of analyses was cond...

Through the centuries, earthquakes represent one of the main causes of damage and loss of cultural heritage, monumental buildings, and historic centres, affecting the development of many countries worldwide. These kinds of constructions are usually constituted by structural masonry and have shown evidence of good behaviour under vertical static loa...

In the field of ground motion simulation, the stochastic site-based methodology relies on the existing database of ground shaking. Based on these methodologies, several properties of seismic signals are used to simulate seismic waves. These parameters could be evaluated either parametrically via linear or nonlinear regression techniques or non-para...

Una parte importante en el proceso de diseño estructural es disminuir el efectode vibración en edificios, particularmente en aquellos que pueden estar sujetos aexcitación sísmica. Aunque investigaciones en el campo del control estructural sehan venido desarrollando desde principios de 1900, la complejidad y dimensionesde las estructuras civiles hac...

Turkey is characterized by a high level of seismic activity attributed to its complex tectonic structure. The country has a dense network to record earthquake ground motions; however, to study previous earthquakes and to account for potential future ones, ground motion simulations are required. Ground motion simulation techniques offer an alternati...

Selection and scaling of ground motion records have been recognised as one of the major sources of bias and uncertainty in the seismic assessment of civil engineering structures. This review paper provides a comprehensive description from a critical point of view of the scaling and selection approaches of earthquake motions for structural engineeri...

Vibration-based damage detection techniques, and particularly frequency and modal-based methods, address the problem of localization and quantification of damage in a structure by using observed changes in its dynamic properties. Most of these procedures are based on an optimal criterion in which the stiffness distribution of an element into a stru...

This paper concerns the numerical performance evaluation of multi-degree-of-freedom systems equipped with Tuned Mass Dampers-Inerter (TMDIs); a passive control device used for the mitigation of mechanical vibrations induced by dynamic loads. The inerter device is commonly used to increase the apparent mass of classics tuned mass dampers (TMDs), imp...

Infrastructure development is a common feature of emerging countries. As a result, the design and construction of complex structures susceptible to damage is becoming increasingly common. Over the years, multiple advances in Structural Health Monitoring (SHM) haven allowed researchers and engineers to detect, locate, and quantify structural damage...

Controlling wind-induced vibrations as well as aerodynamic forces is an essential part of the structural design of tall buildings in order to guarantee the serviceability limit state of the structure. This paper presents a numerical investigation focused on finding the optimal design parameters of a Tuned Inerter Damper (TID) based system for the c...

This paper introduces a novel methodology for the optimum design of linear tuned mass dampers (TMDs) to improve the seismic safety of structures through a novel Whale Optimization Algorithm (WOA). The algorithm is aimed to reduce the maximum horizontal peak displacement of the structure, and the root mean square (RMS) response of displacements as w...

This paper introduces a methodology for the optimal design of passive Tuned Mass Dampers (TMDs) to control the dynamic response of buildings subjected to earthquake loads. The selection process of the optimal design parameters is carried out through a metaheuristic approach based on differential evolution (DE) which is a fast, efficient, and precis...

This paper presents a methodology for the tuning process of tuned mass dampers (TMDs) and tuned mass dampers inerter (TMDIs) positioned at the upper story of high-rise buildings under seismic excitations. A numerical study is conducted through the best fitness design values found through the optimization of three objective functions in the time dom...

Mitigating unwanted vibration in civil engineering structures is an important part of the design process, particularly for structures that may be subject to seismic excitation. This paper introduces a passive control device based on the conventional tuned inerter damper (TID) designed for the passive control of seismically excited multi-degree of f...

This paper presents a numerical investigation on the optimal design parameters for a tuned mass damper (TMD) using a metaheuristic optimization based on the differential evolution method to reduce the dynamic effects in a structural system caused by seismic loads. It was used for the study the structural model of the Cantagirone Tre Piu Building, w...

A parameter selection algorithm based on exhaustive search was used for the design of an optimal Tuned Mass Damper Inerter (TMDI), based on the classic tuned mass damper (TMD). The TMDI is a modified passive vibration control device, that combines the TMD with a mechanical flywheel element of negligible mass, called inerter, which is the mechanical...

To accomplish an appropriate performance of tuned mass dampers (TMDs) in building structures subjected to earthquake excitations, considerable amounts of mass must be added at upper floors, which in occasions may result impractical or economically unfeasible, especially in tall buildings. Therefore, this investigation contemplates two possible alte...

Mitigating unwanted vibration in civil engineering structures is an important part of the design process, particularly for structures that may be subject to seismic excitation. This paper introduces a passive control device based on the conventional tuned inerter damper (TID) designed for the passive control of seismically excited multi-degree of f...