1、5900 英文单词，英文单词，3.1 万英文字符万英文字符，中文中文9200 字字 文献出处：文献出处：Knyziak P. The impact of construction quality on the safety of prefabricated multi-family dwellingsJ. Engineering Failure Analysis, 2019, 100: 37-48. The impact of construction quality on the safety of prefabricated multi-family dwellings Piotr Kny
2、ziak Abstract This study presents analysis of the safety of prefabricated buildings utilizing concrete large-panel technology in the context of building failures as a result of exceptional loads and in the context of their technical condition. Examples of incorrect construction and maintenance from
3、on-site inspections of 110 buildings in Poland are described. Lack of assembly alignment, elements of the structure not protected against corrosion, elements damaged during construction work, no repairs after exceptional loads, and lack of structural strengthening are discussed. The set of case stud
4、ies of large-panel buildings undergoing partial progressive collapses investigated in this study describe how this type of building, despite the impact of all the imperfections of construction and maintenance, carry exceptional loads. A systematic defi ning of the degree of advancement of a progress
5、ive collapse in residential buildings in relation to typical damage ranges was proposed. Keywords: Large-panel buildings ；Building failures ；Progressive collapse； Explosion ； Maintenance 1. Introduction A large number of large-panel prefabricated buildings were assembled in many eastern countries. T
6、he industrial nature of this type of construction required the use of typical wall and ceiling elements as well as typifi ed system solutions. Many large-panel construction systems have been designed. In Poland there were both central and local systems 1. A large number of buildings maintained at the same time forced builders to employ poorly qualifi ed staff and this led to errors during the production of precast elements and their assembly 1. The buildings made in these systems were in
