Study on progressive collapse resistance and mechanisms of beam-column sub-assemblages

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00549851" target="_blank" >RIV/68378297:_____/22:00549851 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1080/15376494.2021.2006836" target="_blank" >https://doi.org/10.1080/15376494.2021.2006836</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/15376494.2021.2006836" target="_blank" >10.1080/15376494.2021.2006836</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study on progressive collapse resistance and mechanisms of beam-column sub-assemblages

Popis výsledku v původním jazyce

Compressive arch action (CAA) and tensile catenary action (TCA) are the main resistance mechanisms against progressive collapse in reinforced concrete (RC) buildings. When the lateral constraints of beams are strong enough, CAA and TCA could be developed and obtain significant additional progressive collapse resistance. Lateral constraints of beams are key parameters affecting the CAA and TCA capacities. For a frame under a middle column lost scenario, the adjacent columns can carry much more loads than designed. Whether the adjacent column could provide adequate lateral constraints to beams need to be examined. Therefore, this article selected beam-column substructures as the research objects. Firstly, a new division method on resistance mechanisms was proposed considering the contributions of each action. Then a model of the beam-column substructure was established and verified with ABAQUS software. The effects of different lateral constraints and beam height on CAA and TCA capacities were investigated by changing the column dimensions and beam heights. Finally, a new theoretical model for predicting the BM capacity, CAA capacity, and TCA capacity of beam-column substructures under different lateral constraints was established. The interaction between the column and beam and the parameters of columns and beams are taken into consideration.

Název v anglickém jazyce

Study on progressive collapse resistance and mechanisms of beam-column sub-assemblages

Popis výsledku anglicky

Compressive arch action (CAA) and tensile catenary action (TCA) are the main resistance mechanisms against progressive collapse in reinforced concrete (RC) buildings. When the lateral constraints of beams are strong enough, CAA and TCA could be developed and obtain significant additional progressive collapse resistance. Lateral constraints of beams are key parameters affecting the CAA and TCA capacities. For a frame under a middle column lost scenario, the adjacent columns can carry much more loads than designed. Whether the adjacent column could provide adequate lateral constraints to beams need to be examined. Therefore, this article selected beam-column substructures as the research objects. Firstly, a new division method on resistance mechanisms was proposed considering the contributions of each action. Then a model of the beam-column substructure was established and verified with ABAQUS software. The effects of different lateral constraints and beam height on CAA and TCA capacities were investigated by changing the column dimensions and beam heights. Finally, a new theoretical model for predicting the BM capacity, CAA capacity, and TCA capacity of beam-column substructures under different lateral constraints was established. The interaction between the column and beam and the parameters of columns and beams are taken into consideration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mechanics of Advanced Materials and Structures

ISSN

1537-6494

e-ISSN

1537-6532

Svazek periodika

29

Číslo periodika v rámci svazku

28

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

7781-7795

Kód UT WoS článku

000728487800001

EID výsledku v databázi Scopus

2-s2.0-85121386701