曲梁内曲线预应力筋锚固损失的计算  

ANALYSIS OF ANCHORING LOSS OF THE CURVED PRESTRESSING TENDONS IN THE CURVED BEAMS

作　　者：任茶仙[1] 竺润祥[1] 

机构地区：[1]宁波大学土木建筑工程系,浙江宁波315211

出　　处：《宁波大学学报（理工版）》1999年第2期70-75,共6页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：浙江省自然科学基金!595090;宁波大学青年基金!943101GY

摘　　要：根据变形协调原理，应用数值解法，导出了曲梁内曲线预应力筋反向摩擦影响长度及其锚固损失的计算公式．从工程实例计算了一通长布置的预应力筋束的锚固损失值。By deforming coordination principle and numerical method, the formulas for calculating theinfluence length of kickback friction and the anchoring loss of the Curved prestressing tendons in thecurved beams are given. The values of anchoring loss in a bunch of prestressing tendons arranged in acurved continuous bridge in Dalian are calculated and compared with the ones in the correspondingstright beam.

关 键 词：曲线预应力筋 摩擦影响长度 锚固损失 桥梁 

分 类 号：U448.35[建筑科学—桥梁与隧道工程]