Shear behaviour of reinforced concrete beams under impact loads by the lumped damage framework

Lumped damage mechanics as a diagnosis tool of reinforced concrete structures in service: case studies of a former bridge arch and a balcony slab

“…4. Although a complete nonlinear analysis is possible [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29], since the goal of this paper is to present a diagnosis of the analysed structure, a single measurement of the tested arch [13] is taken into account. Then, the procedure was carried out for the step of 10.15% of the collapse T load i.e., experimental value of 6.902 kN, since the collapse load is 68 kN.…”

“…LDM was firstly proposed to analyse RC structures submitted to seismic loads [18][19][20][21][22]. Later, LDM was expanded for several other conditions, as impact loads [23][24][25] and tunnel linings [26][27][28]. One of the great advantages of using LDM to evaluate damage of reinforced concrete structures is the use of parameters easily obtained by civil engineers in practice, such as cracking moment and the load conditions.…”

Reliability and Reliability-based Sensitivity Analyses of Steel Moment-Resisting Frame Structure subjected to Extreme Actions

“…The results of the mentioned study revealed that the vehicle impact analyses would lead to greater structural responses and critical damages especially for high collision velocities than column removal approach by using alternative-load path method (APM) [9]. Oliveira et al (2020) proposed a simplified lumped damage model to assess the performance of RC structures under impact loading with considering shear failure mode [10]. Sadeghi et al (2021) evaluated the collapse capacity and endurance duration of SMRF structure including a corner damaged column due to light vehicle impact under seismic records.…”

Evaluation of the behaviour of reinforced concrete beams repaired with glass fibre reinforced polymer (GFRP) using a damage variable

“…Therefore, it is possible to affirm that the same damage value means collapse for a RC beam in conventional buildings and bridges. LDM models were suitably developed and applied for RC structures in several conditions, such as buildings under seismic loads [15][16][17][18][19], tunnel linings [20][21][22] and even impact loaded beams [23][24][25]. In this paper, the behaviour of reinforced concrete beams pre-loaded with different ultimate load ratios and repaired with glass fibre reinforced polymer is investigated, using such damage variable.…”