Comparative Study on Autoclaved Aerated Concrete Slab Design in Chinese and European Codes

ZHANG Guowei; FENG Yang; QIN Changan; LU Qinggang; LIU Hua

doi:10.13204/j.gyjzG22041004

Volume 53 Issue 2

Feb. 2023

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ZHANG Guowei, FENG Yang, QIN Changan, LU Qinggang, LIU Hua. Comparative Study on Autoclaved Aerated Concrete Slab Design in Chinese and European Codes[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 204-210,168. doi: 10.13204/j.gyjzG22041004

Citation:

ZHANG Guowei, FENG Yang, QIN Changan, LU Qinggang, LIU Hua. Comparative Study on Autoclaved Aerated Concrete Slab Design in Chinese and European Codes[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(2): 204-210,168. doi: 10.13204/j.gyjzG22041004

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Comparative Study on Autoclaved Aerated Concrete Slab Design in Chinese and European Codes

doi: 10.13204/j.gyjzG22041004

1. Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material, Beijing University of Civil Engineering and Architecture, Beijing 100044, China;
2. Beijing Institute of Architectural Design, Beijing 100045, China

Received Date: 2022-04-10
Available Online: 2023-05-25
Publish Date: 2023-02-20

Abstract

Abstract

As a kind of lightweight and high-strength member, autoclaved aerated concrete slabs have been widely used in multi-high-level building envelope structures, and the mechanical properties of such slabs can effectively ensure the structure safety. The codes of autoclaved aerated concrete in China and Europe were comparatively analyzed from the four aspects of the positive section bearing capacity, oblique cross-section bearing capacity, and the cracked load. The results showed that compared with the experimental values, the design valves of the bearing capacity of normal sechen and obliqhe section in JGJ/T 17-2020 had smaller error than those in EN 12602:2016, and the oblique section bearing capacity was mainly related to the strength of the concrete; under the limit state of normal use, the deflection and crack load has a safety reserve of 1.5 to 2 times the design value. The EN 12602:2016 considered the bonding properties of steel bars, autoclaved aerated concrete creep and contraction, and this kind of theoretical value ratio and test value ratio between 0.71 to 1.02 and 0.78 to 1.06, respectively, the degree of fit could be used as a basis for structure.
- autoclaved aerated concrete slab,
- bearing capacity,
- deflection,
- cracking load,
- structural design

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References(19)

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