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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.38 No.1
- 발행연도
- 2021.1
- 수록면
- 87 - 102 (16page)
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초록· 키워드
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To investigate the failure form, bending stiffness, and residual bearing capacity of monolithic composite beams with laminated slab throughout the fire process, fire tests of four monolithic composite beams with laminated slab were performed under constant load and temperature increase. Different factors such as post-pouring layer thickness, lap length of the prefabricated bottom slab, and stud spacing were considered in the fire test. The test results demonstrate that, under the same fire time and external load, the post-pouring layer thickness and stud spacing are important parameters that affect the fire resistance of monolithic composite beams with laminated slab. Similarly, the post-pouring layer thickness and stud spacing are the predominant factors affecting the bending stiffness of monolithic composite beams with laminated slab after fire exposure. The failure forms of monolithic composite beams with laminated slab after the fire are approximately the same as those at room temperature. In both cases, the beams underwent bending failure. However, after exposure to the high-temperature fire, cracks appeared earlier in the monolithic composite beams with laminated slab, and both the residual bearing capacity and bending stiffness were reduced by varying degrees. In this test, the bending bearing capacity and ductility of monolithic composite beams with laminated slab after fire exposure were reduced by 23.3% and 55.4%, respectively, compared with those tested at room temperature. Calculation methods for the residual bearing capacity and bending stiffness of monolithic composite beams with laminated slab in and after the fire are proposed, which demonstrated good accuracy.
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참고문헌 (31)
참고문헌 신청
Ankit Agrawal / 2020 / A Novel Experimental Approach for Evaluating Residual Capacity of Fire Damaged Concrete Members / Fire Technology 56(2):715~735
Abdullah Huzeyfe Akca / 2020 / Post-fire mechanical behavior and recovery of structural reinforced concrete beams / Construction and Building Materials 253(30):119188~10
Said M. Allam / 2013 / Behavior of one-way reinforced concrete slabs subjected to fire / Alexandria Engineering Journal 52(4):749~761
Gordon M.E Cooke / 2001 / Behaviour of precast concrete floor slabs exposed to standardised fires / Fire Safety Journal 36(5):459~475
Ayman El-Zohairy / 2017 / Experimental and FE parametric study on continuous steel-concrete composite beams strengthened with CFRP laminates / Construction and Building Materials 157:885~898
Abdullah Huzeyfe Akca / 2020 / Post-fire mechanical behavior and recovery of structural reinforced concrete beams / Construction and Building Materials 253(30):119188~10
Said M. Allam / 2013 / Behavior of one-way reinforced concrete slabs subjected to fire / Alexandria Engineering Journal 52(4):749~761
Gordon M.E Cooke / 2001 / Behaviour of precast concrete floor slabs exposed to standardised fires / Fire Safety Journal 36(5):459~475
Ayman El-Zohairy / 2017 / Experimental and FE parametric study on continuous steel-concrete composite beams strengthened with CFRP laminates / Construction and Building Materials 157:885~898
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