Seismic performance of steel-PEC spliced frame beam

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F22%3A00561256" target="_blank" >RIV/68378297:_____/22:00561256 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jcsr.2022.107456" target="_blank" >https://doi.org/10.1016/j.jcsr.2022.107456</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcsr.2022.107456" target="_blank" >10.1016/j.jcsr.2022.107456</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Seismic performance of steel-PEC spliced frame beam

Popis výsledku v původním jazyce

In this paper we propose a novel form known as the steel-PEC spliced frame beam (SPSFB), which is intended to maintain the advantages of the PEC beam while reducing the consumption of steel. In the SPSFB, an independent H-beam (mid-portion beam) is replaced by the PEC beam with a thinner flange. The PEC and stub beams are connected by web bolts, a welded flange, and a girth welded flange cover plate to improve flexural capacity. Low cycle loading tests were conducted on five SPSFB specimens testing the variables of the concrete strength, the length of the stub beam, and the length of flange-plates. Two failure modes were observed, and the related seismic behavior was investigated. When the damage occurred at the bottom of the PEC beam, higher grade concrete was correlated with better seismic performance. When the damage occurred at the bottom of the stub beam, setting an appropriate length of stub beam and flange-plate can improve the hysteretic capacity and further reduce steel consumption. Based on elastic and plastic analysis, the bearing capacities and deformation were calculated. The calculated results agreed well with the experimental results.

Název v anglickém jazyce

Seismic performance of steel-PEC spliced frame beam

Popis výsledku anglicky

In this paper we propose a novel form known as the steel-PEC spliced frame beam (SPSFB), which is intended to maintain the advantages of the PEC beam while reducing the consumption of steel. In the SPSFB, an independent H-beam (mid-portion beam) is replaced by the PEC beam with a thinner flange. The PEC and stub beams are connected by web bolts, a welded flange, and a girth welded flange cover plate to improve flexural capacity. Low cycle loading tests were conducted on five SPSFB specimens testing the variables of the concrete strength, the length of the stub beam, and the length of flange-plates. Two failure modes were observed, and the related seismic behavior was investigated. When the damage occurred at the bottom of the PEC beam, higher grade concrete was correlated with better seismic performance. When the damage occurred at the bottom of the stub beam, setting an appropriate length of stub beam and flange-plate can improve the hysteretic capacity and further reduce steel consumption. Based on elastic and plastic analysis, the bearing capacities and deformation were calculated. The calculated results agreed well with the experimental results.

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

Journal of Constructional Steel Research

ISSN

0143-974X

e-ISSN

1873-5983

Svazek periodika

197

Číslo periodika v rámci svazku

October

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

107456

Kód UT WoS článku

000848330200004

EID výsledku v databázi Scopus

2-s2.0-85135305458