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(北京市建設工程質(zhì)量第三檢測所有限責任公司, 北京 100037)
[摘要]隨著我國經(jīng)濟的發(fā)展和橋梁建設水平的大幅提升,越來越多的旅游景區(qū)為提升服務效果開始修建人行玻璃懸索橋,人行玻璃懸索橋以其獨特的造型和強大的跨越能力,在旅游觀光建筑中得到了很好的發(fā)展。人行玻璃懸索橋加勁梁一般采用縱、橫方鋼焊接成梁格體系,上面鋪設鋼化玻璃,具有自重輕、梁體剛度小等特點。為保障后期運營橋梁的安全,以某景區(qū)一座跨徑178m的玻璃懸索橋為背景,采用有限元分析軟件,對橋梁結(jié)構(gòu)的靜力及動力指標進行分析和研究,并采用等效荷載加載的方式對橋梁的承載能力進行鑒定。結(jié)果表明橋梁結(jié)構(gòu)承載力滿足設計要求。
[關鍵詞]玻璃懸索橋;荷載試驗;等效加載;承載力;梁格體系;鋼化玻璃
中圖分類號:TU393-3, U446-1 文獻標識碼:A文章編號:1002-848X(2021)14-0051-05
Study and analysis of load test on pedestrian glass suspension bridge in the scenic spot
SHAN Jiming
(Beijing Construction Engineering Quality Third Test Institute Co.,Ltd., Beijing 100037, China)
Abstract: With the development of China’s economy and the improvement of bridge construction level, more and more tourist attractions begin to build pedestrian glass suspension bridges in order to improve the service effect. With its unique shape and strong crossing ability, pedestrian glass suspension bridges have been well developed in tourism and sightseeing buildings. The stiffening beam of pedestrian glass suspension bridge is generally made of longitudinal and transverse steel welded into beam lattice system and laid with toughened glass, which has the characteristics of light dead weight and low beam stiffness. In order to ensure the safety of the bridge in later operation, taking a glass suspension bridge with a span of 178m in a scenic spot as the background, finite element analysis software was used to analyze and study the static and dynamic indicators of the bridge structure, and the bearing capacity of the bridge was evaluated by using equivalent load loading method. The results show that the bearing capacity of the bridge structure meets the design requirements.
Keywords:glass suspension bridge; load test; equivalent loading; bearing capacity; beam lattice system; toughened glass
作者簡介:單積明,學士,工程師,Email:coolsxim@yeah.net。