预制T梁存梁期间上拱挠度影响因素分析  

Factorial Analysis for Camber of T-shape Precast-beam in Resting Period

作　　者：张振东 

机构地区：[1]福建省高速公路有限责任公司福州管理分公司,福州350001

出　　处：《福建建筑》2009年第9期53-54,共2页Fujian Architecture & Construction

摘　　要：结合工程实例,进行了25m和30m预应力混凝土预制T梁在存梁期间上拱挠度影响因素(反拱度、预应力损失、徐变,温度)的分析,并提出了控制梁体上拱挠度的措施。研究结果可对类似工程提供借鉴。Factorial analysis for camber of T shape precast beam with 25m and 30m span in resting period was carried out. Influence factors include inverted camber, prestressing loss, creep and temperature. The method to control camber of beam was presented. Research results could be draw lessons from other similarly project.

关 键 词：预应力混凝土 T梁 上拱挠度 徐变 存梁期 

分 类 号：U442[建筑科学—桥梁与隧道工程]