高层建筑混凝土墙板裂缝事故调查分析及处理办法(Investigation and analysis of cracks in concrete wall panels of high-rise buildings).doc
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高层建筑混凝土墙板裂缝事故调查分析及处理办法(Investigation and analysis of cracks in concrete wall panels of high-rise buildings)
The high-rise building concrete wallboard cracks accident investigation and analysis and treatment method of _ Chinese construction network address bar enter the building materials or construction design to enter the home page to download data | |
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The high-rise building concrete wallboard cracks accident investigation and treatment measures
Author: Li Shujun
1. crack accident
1.1 project overview
A high-rise office building in Northwest China, the main building is a reinforced concrete frame tube structure, underground 1 floors, 18 floors on the ground, the total height of 76.8m, total construction area of 36482m2. The building foundation piles, the basement wall thickness of 300mm C30 waterproof concrete. The elevation of 13.6m above the grade of concrete slab thickness were C40, 120mm.
1.2 crack
The project started in June 1998, mid September 1998 the construction of basement wall construction, January 19, 1999 to 6 layer beam plate structure. The floor slab in the construction at the same time that the small
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