Open AccessEffect of joint positions on flexural behaviors of box segmental specimens internally post tensioned under cyclic and static loadings
Author(s) -
Waleed A. Wrayosh,
Ahmed H. Hashim
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/870/1/012084
Subject(s) - structural engineering , joint (building) , precast concrete , cracking , bending , materials science , flexural strength , failure mode and effects analysis , three point flexural test , static testing , composite material , engineering
The goal of this paper is to get a better knowledge of effect of joint positions on flexural behavior of box segmental specimens under bending stresses. Three segmental specimens with internal tendons were produced and tested. Each segmental specimen was produced assembling three precast concrete segments and they were connected by using four post tensioning tendons. All segmental specimens were formed with dry joint type, but they different in joint positions. All specimens were tested under two types of loadings cyclic and static two point loads. The test of cyclic loading was carried out by exposure each specimen to three loading cycles. The static load test was carried out in same rate of loading that of cyclic load test and all girder specimens were tested up to failure. The loads versus deflections at specified points were recorded. Also, cracking, mode of failure and ultimate loads values were recorded as well as the concrete surface strains at the specified locations for both loadings.