对预应力混凝土管桩上浮问题的研究

预应力混凝土是在外荷载作用前预先建立有预压应力的混凝土,混凝土的预压力一般是通过张拉预应力筋实现的。普通混凝土框结构由于跨度小、柱网密,无法满足多种功能的需要,而预应力可以有效解决以上问题。预应力混凝土管桩由于具有承载力高、适应性强等特点,近年来得到了大力推广。本文通过分析预应力混凝土管桩的施工特点,以南昌市某工业区工程为例,针对上浮原因,提出处理措施。

Research on Floating of Prestressed Concrete Piles

Prestressed concrete is concrete which external loads to establish a pre-stress in advance concrete,pre-stress is generally achieved through the prestressed tendons.Ordinary concrete frame structures due to span is small and dense column network unable to meet the needs of a variety of functions,and prestressed can effectively solve the above problems.Prestressed concrete piles due to the high carrying capacity,adaptability and other characteristics,in recent years has been vigorously promoted.This paper analyzes the characteristics of prestressed concrete pile construction with an industrial zone project in Nanchang as an example,direct to floating reasons puts forward dealing measures.