Key changes to wind load provisions of the draft TCVN 2737:202x

Từ khóa:

Wind loads
TCVN 
2737
basic wind pressure
reference height
gust effect factor...

https://doi.org/10.59382/j-ibst.2023.en.vol1-6

Tóm tắt:

TCVN 2737:1995 Loads and Actions – Norm for Design [1] is the current Vietnamese design standard to determine the wind loads acting on the buildings & structures. This standard was prepared and officially issued in 1995, and has been effective until today (May 2023). Subsequently, two draft revisions related to wind loads were prepared in 2006 and 2009.The applications of design practices have demonstrated the limitations of TCVN 2737:1995.Therefore, Vietnam Ministry of Construction has asked the Vietnam Institute for Building Science & Technology (IBST) to carefully revise TCVN 2737:1995 and to prepare the new TCVN 2737:202x to meet the present and future requirements for design of buildings and structures as well as to harmonise with the region and the world. Hence, the draft standard TCVN 2737:202x Loads and Actions has been prepared since 2017 and has been uploaded to the IBST website [3] to receive feedbacks and opinions from designers, engineers and experts. This draft is expected to be approved and officially published to replace the current standard TCVN 2737:1995. In the draft of this new standard, there are many contents, including wind load provisions. And this paper presents the key changes to wind load provisions of the new draft TCVN 2737:202x.

Nội dung:

Tài liệu tham khảo:

[1]   TCVN 2737: 1995, Loads and Actions - Norm for design.

[2]   TCVN 2737: 202x, Loads and Actions.

[3]   Http://www.ibst.vn/thong-bao/moi-gop-y-du-thao-tieu-chuan-tcvn-2737-20xx-.ht.

[4]   QCVN 03:2022, National Technical Regulation on Clasificasions of Buildings and Structure for design.

[5]   TCVN 2737: 1990, Loads and Actions - Norm for design.

[6]   Eurocode 1: Actions on Structures - Part 1-4: General Actions – Wind Actions.

[7]   ASCE/SEI 7-16, Minimum Design Loads and Associated Criteria for Buildings and Other Structures.

[8]  SP 20.13330.2016, Loads and Actions.