Experimental and Numerical Investigations on Fire-Resistance Performance of Precast Concrete Hollow-Core Slabs

被引：13

作者：

Heo, Inwook ^{[1
]}

Darkhanbat, Khaliunaa ^{[1
,2
]}

Han, Sun-Jin ^{[1
]}

Choi, Seung-Ho ^{[1
]}

Jeong, Hoseong ^{[1
,2
]}

Kim, Kang Su ^{[1
,2
]}

机构：

[1] Univ Seoul, Dept Architectural Engn, 163 Seoulsiripdaero, Seoul 02504, South Korea

[2] Univ Seoul, Smart City Interdisciplinary Major Program, 163 Seoulsiripdaero, Seoul 02504, South Korea

来源：

APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 23期

关键词：

hollow-core slab; precast concrete; prestressed concrete; fire resistance performance; nonlinear finite element analysis; SHEAR-STRENGTH; BEHAVIOR; CAPACITY; MODEL;

D O I：

10.3390/app112311500

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, full-scale fire tests and finite element (FE) analyses are conducted to investigate the fire resistance performance of hollow-core slabs (HCSs) manufactured using the extrusion method. The deflection of the HCS specimens and the temperature distribution in the section according to the fire exposure time are measured and analyzed comprehensively, and the test results are compared with the FE analysis results. In addition, parametric analyses are conducted on 21 cases with the HCS depth, span length, hollow ratio in a section, cover thickness of concrete, and load ratio (i.e., the ratio of the external load to the ultimate load) as variables, based on which the fire resistance performance of the HCS according to each variable is investigated. The analysis results show that the load ratio is a key factor governing the fire resistance behavior of HCSs, whereas the effects of the cover thickness of concrete and the hollow ratio in a section are relatively slight within the range of variables examined in this study.

引用

页数：24

共 50 条

[21] Flexural performance of precast hollow-core slabs strengthened with textile-reinforced highly ductile concrete (TRHDC)
Song, Shifei
Deng, Mingke
Yang, Jiasheng
Li, Ruizhe
Zhang, Yangxi
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, 2023, 23 (04)
[22] Effects of cast-in-place concrete topping on flexural response of precast concrete hollow-core slabs
Baran, Eray
ENGINEERING STRUCTURES, 2015, 98 : 109 - 117
[23] Experimental study on the shear behaviour of precast concrete hollow core slabs with concrete topping
Ibrahim, I. S.
Elliott, K. S.
Abdullah, R.
Kueh, A. B. H.
Sarbini, N. N.
ENGINEERING STRUCTURES, 2016, 125 : 80 - 90
[24] Flexural and Shear Strength of Prestressed Precast Hollow-Core Slabs
M. K. Rahman
M. H. Baluch
M. K. Said
M. A. Shazali
Arabian Journal for Science and Engineering, 2012, 37 : 443 - 455
[25] Flexural and Shear Strength of Prestressed Precast Hollow-Core Slabs
Rahman, M. K.
Baluch, M. H.
Said, M. K.
Shazali, M. A.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING, 2012, 37 (02): : 443 - 455
[26] Shear response of deep precast/prestressed concrete hollow core slabs subjected to fire
Nguyen, Hang T. N.
Tan, Kang-Hai
ENGINEERING STRUCTURES, 2021, 227
[27] Integrating hollow-core masonry walls and precast concrete slabs into building space heating and cooling
Chen, Yuxiang
Galal, Khaled E.
Athienitis, Andreas K.
JOURNAL OF BUILDING ENGINEERING, 2016, 5 : 277 - 287
[28] Experimental and theoretical study on static performance of prefabricated steel-bar truss frame-precast concrete composite hollow-core slabs
Han, Chun-xiu
He, Huan-lin
Luo, Qiang-jun
Zhao, Yun-long
Zhang, Jiu-chang
STRUCTURES, 2024, 61
[29] Behavior of reinforced sustainable concrete hollow-core slabs
Al, Adel A.
Shallal, Mustafa S.
ADVANCES IN CONCRETE CONSTRUCTION, 2021, 11 (04) : 271 - 284
[30] Strengthening of precast pretensioned hollow core slabs exposed to fire
Badran, Hussein
Alkloub, Amer
JOURNAL OF STRUCTURAL INTEGRITY AND MAINTENANCE, 2025, 10 (01)

← 1 2 3 4 5 →