Rheology of steel - concrete composite bridges

bachelor's degree work from academic study program

Mihael Peternelj (Author), Stojan Kravanja (Mentor), Milan Kuhta (Co-mentor), Dorian Janjic (Co-mentor)

Abstract

Osnovni namen diplomske naloge je predstaviti reološke vplive betona na sovprežno konstrukcijo (kot njen sestavni material). V nadaljevanju bomo predstavili numerične postopke za izračun teh vplivov, ter rešili dva primera. Prvi poenostavljen primer, ki detajlno opisuje postopek in drugi (bolj zahteven) primer s pomočjo programskega paketa RM Bridge, ki velja za enega najboljših programskih paketov za računsko analizo mostov. Diplomsko delo je sestavljeno iz dveh delov: teoretičnega in računskega dela. V prvem delu je predstavljena teorija, pristop in formule, ki omogočajo natančno določanje reoloških vplivov betona na sovprežno konstrukcijo kot njen sestavni element. Drugi del je v grobem sestavljen iz dveh računskih primerov. Prvi računski primer je enostaven sovprežni nosilec podprt z dvema elastičnima podporama in služi zgolj v demonstativne namene, ter detajlno prikazuje računski postopek analize konstrukcije. Primer je bil rešen ročno in rezultati računske analize konstrukcije primerjani z tistimi dobljenimi s pomočjo programskega paketa RM Bridge. Drugi primer bolje ustreza realiteti. V drugem primeru je izračunan sovprežni most z tremi razponi dolžine 40 m - 60 m - 40 m. Tak sovprežni most ustreza kakšnemu podobnemu mostu v praksi, zato se rezultati njegove računske analize lahko primerjajo na realni osnovi. Na podlagi rezultatov drugega primera lahko sklepamo, da je časovno odvisne materialne in reološke karakteristike betona, kot sestavnega materiala sovprežne konstrukcije, potrebno vedno upoštevati.

Keywords

rheology;composite bridges;steel;concrete;creep;shrinkage;relaxation;finite element method;structural analysis;

Data

Language:	English
Year of publishing:	2009
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Publisher:	[M. Peternelj]
UDC:	666.97.035:035:624.21(043.2)
COBISS:	13698326
Views:	2889
Downloads:	321
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Reologija jekleno - betonskih sovprežnih mostov
Secondary abstract:	The main purpose of this diploma work is to discuss the time dependant effects of concrete as a component material of the composite construction and their influence. In addition numerical solutions for calculating creep and shrinkage effects will be presented and two examples solved, one simpler with detailed description and one more difficult using the leading software package RM Bridge for modelling bridges. This work is divided into two parts: theoretical part and calculation part. In the first part theory, methodology and formulas that enable precise prediction of concrete time dependant parameters on the composite construction as a part of it. The second part of this work consists of two examples. First example is a very simplified composite beam held up by two elastic supports. The main purpose of this much simplified example is for demonstration purposes only. It was calculated manually with detailed description and the results of structural analysis compared to those gained with help of software package RM Bridge. Second example tends to be more realistic. In this case we have a three span 40 m – 60 m – 40 m steel — concrete composite bridge. Such bridge corresponds to an average composite bridge in reality and therefore the results of structural analysis can be evaluated on real ground basis. Based on the results of the second example we can conclude that time dependent effects of concrete as a material used in composite constructions always have to be considered.
Secondary keywords:	reologija;sovprežni mostovi;jeklo;beton;lezenje;krčenje;relaksacija;metoda končnih elementov;računska analiza konstrukcij;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za gradbeništvo
Pages:	XVI, 110 f.
Keywords (UDC):	applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;chemical technology;chemical and related industries;kemijska tehnologija;kemijske in sorodne industrije;glass industry;ceramics;cement and concrete;industrija stekla;keramika;cement in beton;gypsum;lime and cement industries;hard-setting materials;plasters and compositions;mortar and concrete;industrije mavca;apna in cementa;vezivni materiali;ometi in sestavne zmesi;malta in beton;science and knowledge;organization;computer science;information;documentation;librarianship;institutions;publications;znanost in znanje;organizacije;informacije;dokumentacija;bibliotekarstvo;institucije;publikacije;applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;civil and structural engineering in general;gradbena tehnika;gradbeništvo;
ID:	986060