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Effects of Corrosion on Compressive Arch Action and Catenary Action of RC Frames to Resist Progressive Collapse Based on Numerical Analysis. [PDF]

open access: yesMaterials (Basel), 2021
Many negative factors can influence the progressive collapse resistance of reinforced concrete (RC) frame structures. One of the most important factors is the corrosion of rebar within the structure. With increasing severity of corrosion, the duration, robustness, and mechanical performance can be greatly impaired.
Zhang L, Wei T, Li H, Zeng J, Deng X.
europepmc   +4 more sources

Numerical Investigations of Progressive Collapse Behaviour of Multi-Storey Reinforced Concrete Frames

open access: yesBuildings, 2023
This paper presents numerical simulations of multi-storey reinforced concrete frames under progressive collapse scenarios. Reinforced concrete frames with different storeys are modelled using DIANA.
Qiao-Ling Fu   +3 more
doaj   +1 more source

Analysis of Bearing Safety and Influencing Factors of Supporting Structures of Hydraulic Tunnels in Cold Regions Based on Frost Heave

open access: yesBuildings, 2023
In order to study the bearing safety and influencing factors of the support structures of hydraulic tunnels in cold regions under the action of low-temperature frost heave, a mechanical model of the support structure and surrounding rock was established.
Haibo Jiang   +3 more
doaj   +1 more source

Analysis of Damage Mechanism of Tunnel Lining Structure under the Coupling Action of Active Fault

open access: yesAdvances in Civil Engineering, 2021
To reveal the failure mechanism of tunnel structure under active fault movement, based on the pseudostatic elastoplastic finite element method, the failure modes of the tunnel lining are studied under different movement ratios of strike-slip faults and ...
Guotao Yang   +5 more
doaj   +1 more source

Seismic damage mechanism of slope and lining in the mountain tunnel portal section [PDF]

open access: yesE3S Web of Conferences, 2020
A series of numerical simulations were conducted to study the seismic response in the mountain tunnel portal section. The seismic damage mechanism, including slope cracking and landslide, rockfalls and collapse, and lining cracking were analyzed based on
Xu Hua   +4 more
doaj   +1 more source

Progressive collapse performance of shear strengthened RC frames by nano CFRP

open access: yesNanotechnology Reviews, 2022
To investigate the effect of nano carbon-fiber-reinforced polymer (nano CFRP) on retrofitting reinforced concrete (RC) structures, this article presented the progressive collapse performance of two half-scale four-bay RC frames including one control ...
Chen Weihong   +4 more
doaj   +1 more source

Effects of Floor System on Progressive Collapse Behavior of RC Frame Sub-Assemblages

open access: yesBuildings, 2022
The ability to predict the resistance of reinforced concrete (RC) structures to progressive collapse as a result of an interior column removal has become a need in structural design.
Said Elkholy   +2 more
doaj   +1 more source

Masonry Arch Bridges with Finite Compression Strength Subject to Horizontal Longitudinal Seismic Actions

open access: yesApplied Sciences, 2023
The great diffusion of masonry arch bridges, sometimes of historical interest, requires the development of simple but effective methodologies for a preliminary but reliable evaluation of their static and seismic capacity. In this paper, the behaviour under longitudinal seismic actions is analysed by using the mechanism method.
Paolo Clemente   +3 more
openaire   +3 more sources

New analytical calculation models for compressive arch action in reinforced concrete structures [PDF]

open access: yesEngineering Structures, 2018
Abstract Research challenges associated with progressive collapse of reinforced concrete (RC) structures have attracted growing attention from researchers and industries worldwide, since the 1995 explosion at the Murrah Federal Building in Oklahoma City.
Xinzheng Lu   +3 more
openaire   +2 more sources

Analytical Model for Compressive Arch Action in Horizontally Restrained Beam-Column Subassemblages [PDF]

open access: yesACI Structural Journal, 2016
This paper presents an analytical model to predict the compressive arch action (CAA) of reinforced concrete beam-column subassemblages. In the model, a new method is proposed to quantify the strains of longitudinal reinforcement in the beam. Instead of equivalent rectangular concrete stress block, the constitutive model for concrete is employed to ...
Kang, Shao-Bo, Tan, Kang Hai
openaire   +2 more sources

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