Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13575
Title: Design appraisal of steel-concrete composite joints
Authors: TEO TECK HEONG
Keywords: Moment rotational responses, joint modeling, global frame analysis, semi continuous, joint transformation.
Issue Date: 4-Dec-2003
Source: TEO TECK HEONG (2003-12-04). Design appraisal of steel-concrete composite joints. ScholarBank@NUS Repository.
Abstract: The main objective of this study is to obtain a clear picture of moment rotational responses of different types of composite joints. 14 full-scale composite beam-to-column joint specimens were tested to failure. These specimens were configured as cruciform shape with special test set up to examine its behaviour under the influence of solely negative or both negative and positive moments at the same time. The general trends of test data are evaluated and established to derive the analytical models, namely moment capacity, rotational stiffness and rotation capacity for composite joint under positive moment. The moment rotation relationships (M-fj) obtained by using these models are then incorporated into global frame analysis by taking into consideration various joint modelling techniques provided in EC3. The rigorous approach considers the semi-continuous behaviour by a special joint element consisting of separate rotational springs for the left and right hand side connection and the shear panel connecting to column and beam axes by infinite rigid stubs. Eurocodes allow the joint model to be concentrated in the intersection of beam and column axes without joint transformation. It is highlighted in the present study that the error due to neglecting the finite joint size can be significant. It may result in conservative approximation of mid span deflection, leading to under-utilization of section capacity and hence uneconomical design.
URI: http://scholarbank.nus.edu.sg/handle/10635/13575
Appears in Collections:Ph.D Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
TeoTH.pdf4.42 MBAdobe PDF

OPEN

NoneView/Download

Page view(s)

268
checked on Dec 11, 2017

Download(s)

434
checked on Dec 11, 2017

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.