[논문]Numerical Simulation on Disproportionate Collapse of the Tall Glulam Building under Fire Conditions

Zhao, Xuan; Zhang, Binsheng; Kilpatrick, Tony; Sanderson, Iain

doi:10.21022/ijhrb.2021.10.4.311

Numerical Simulation on Disproportionate Collapse of the Tall Glulam Building under Fire Conditions 원문보기

International journal of high-rise buildings, v.10 no.4, 2021년, pp.311 - 321

Zhao, Xuan (Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University) , Zhang, Binsheng (Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University) , Kilpatrick, Tony (Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University) , Sanderson, Iain (Department of Civil Engineering and Environmental Management, School of Computing, Engineering and Built Environment, Glasgow Caledonian University)

Abstract ▼ AI-Helper

Perception of the public to structural fires is very important because there are only a number of tall timber buildings constructed in the world. People are hesitating to accept tall timber buildings, so it is essential to ensure the first generation of tall timber buildings to a very high standard, especially fire safety. Right now, there are no specific design standards or regulations for fire design of tall timber buildings in Europe. Even though heavy timber members have better fire resistance than steel components, many conditions still need to be verified before considering the use of timber materials, e.g. fire spread, post-fire collapse, etc. This research numerically explores the structural behaviours of a tall Glulam building when one of its internal Glulam (Glued laminated timber) columns fails after sustaining a full 120-min standard fire and is removed from the established finite element building model created in SAP2000. The numerical results demonstrate that the failure and removal of the selected internal Glulam column may lead to the local failure of the adjacent CLT (Cross laminated timber) floor slabs, but will not lead to large disproportionate damage and collapse of the whole building. Here, the building is assumed to be located in Glasgow, Scotland, UK.

주제어

표/그림 (13)

그림 Figure 1. Treet in Bergen, Norway. (Woodskyscrapers 2020)
그림 Figure 2. Different views of Model B for the tall Glulam building.
그림 Figure 3. The floor plan of the tall Glulam building.
표 Table 1. Sizes of the wall and window openings
표 Table 2. Sizes of Glulam elements
표 Table 3. Equivalent stiffness parameters of the CLT elements
그림 Figure 4. Removing the internal supporting Glulam Column B2 in Storey 1 in the tall Glulam building model after a 120-min standard fire
그림 Figure 5. Contours of the principal stresses on the bottom surface of the selected Slabs 1, 2, 3 and 4 at the top of Storey 1 before and after removing the Glulam Column B2 from the tall Glulam building once subjected to a full 120-min standard fire
표 Table 4. Design loadings and deflections on the selected Glulam beams at the top of Storey 1 in the building model before and after removing the internal Glulam Column B2
표 Table 5. Design loadings and deflections on the selected Glulam beams in Storey 1 after removing Glulam Column B2 and CLT floor Slab AC13
그림 Figure 6. Design axial loadings and compressive stresses on the selected adjacent Glulam columns in Storey 1 before and after removing some fire damaged key structural members
그림 Figure 7. Design loadings and compressive stresses on the selected Glulam Columns B2 in Storeys 2, 3 and 4 before and after removing Column B2 in Storey 1.
그림 Figure 8. Deformed floor shapes and possible collapse modes of the CLT floor Slabs AC13 in Storeys 1 to 4 of the Glulam building model after removing Column B2 in Storey 1.

참고문헌 (27)

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상세보기
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