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黃廣龍1, 顏榮華1, 陸春其2
(1 南京工業(yè)大學土木工程學院,南京210009;2 無錫交通高等職業(yè)技術學校,無錫214151)[摘要] 預應力混凝土管樁用作水平承載樁主要是利用高強的鋼筋、高等級混凝土及施加的預應力提供足夠的水平抗力來承擔外部的水平荷載,水平承載預應力混凝土管樁具有施工速度快、環(huán)境污染少、沉樁效率高、經(jīng)濟安全等特點,具有非常廣的應用前景。本文在對當前承受水平荷載預應力管樁的理論研究、試驗研究及應用現(xiàn)狀等方面進行詳細分析的基礎上,指出了目前用于承受水平荷載的預制樁存在的一些不足,提出了水平荷載下預應力混凝土管樁受力特性中有待研究的問題,為進一步研究高強預應力混凝土管樁在水平荷載下的抗彎承載力提供研究思路。
[關鍵詞] 水平荷載;預應力混凝土;抗彎承載力;管樁
中圖分類號:TU437.1 文獻標識碼:A 文章編號:1002-848X( 2011) S2-0341-04Application situation and prospect of the prestressed concrete pipe pile under lateral load
Huang Guanglong1, Yan Ronghua1, Lu Chunqi2
(1 College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China; 2 Wuxi Higher Vocational and Technical School of Transportation, Wuxi 214151, China)Abstract: The prestressed concrete pipe pile as the lateral pile is to use high-strength reinforcement, high-grade concrete and prestress to provide adequate horizontal resistance to bear the external lateral load. Because prestressed concrete pipe pile of bearing lateral load has many advantages such as rapid construction speed, less environmental pollution, lught effective pile driving, economicals safe and so on, it has very wide application prospect. Based on the theoretical research, experimental research and application of the current prestressed concrete pipe pile under lateral load, some disadvantages were indicated, and some problems needed to be solved in mechanical characteristics of the lateralload pile had been put forward, which will provide some ideas for further research on the flexural capacity of prestressed pipe pile under lateral load.
Keywords: lateralload; prestressed concrete; flexural capacity; pipe pile