Analiza razlika proračuna nosivosti plitkih temelja između starih i novih tehničkih propisa

undergraduate thesis

• Title (english): The analysis of the calculation differences of shallow foundations bearing capacity between old and new technical regulations
• Author: Mihaela Dukić
• Mentor: Krešo Ivandić (mentor)
• Committee member: Sanja Kovač (predsjednik povjerenstva)
• Committee member: Krešo Ivandić (član povjerenstva)
• Committee member: Filip Dodigović (član povjerenstva)
• Committee member: Boris Kavur (član povjerenstva)
• Committee member: Stjepan Strelec (član povjerenstva)
• Granter: University of Zagreb; Faculty of Geotechnical Engineering; Varaždin
• Defense date and country: 2022-09-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Temelj je dio konstrukcije između same građevine i tla. Plitki temelji koriste se kada je potrebno prenijeti opterećenje od objekta u temeljno tlo na način da ne dođe do sloma tla i prekomjernog slijeganja. Ponajviše se koriste kod relativno krutih tla i manjih vanjskih djelovanja. Prema obliku plitki temelji se dijele na: temelje samce, temeljne trake, temeljne ploče i temeljne roštilje.
Govori se o proračunu nosivosti prema obrascima iz starih propisa iz Pravilnika 15/90 gdje su navedene opće odredbe, ispitivanje, klasifikacija i identifikacija tla, vrste opterećenja te pravila kod izvedbe plitkog temeljenja.
Pojašnjen je Eurokod 7 sa razrađenim geotehničkim kategorijama, graničnim stanjima, projektnim pristupima (PP1, PP2 i PP3) te plitkim temeljima gdje je posebno objašnjeno granično stanje nosivosti s pripadajućim izrazima.
U konačnici su prikazane razlike dvaju tehničkih propisa na analitičkim izrazima. Potom je obrađen numerički primjer proračuna prema Pravilniku 15/90 i prema EC7 za centrično opterećen kvadratni temelj u nedreniranim uvjetima.

Abstract (english)

Foundation is a part of the construction between the building itself and the ground. Shallow foundations are used when it is necessary to transfer the load from a building to an underlying soil in such a way that soil failure and excessive settlement do not occur. They are mostly used for relatively stiff soils and minor external influences. According to the shape of shallow foundations, they are divided into: single foundations, foundation strips, foundation slabs and foundation grills.
The paper presents the calculation of the bearing capacity according to the forms from the old regulations from Ordinance 15/90, where the general provisions, testing, classification and identification of the soil, types of loads and rules for the execution of shallow foundations are stated.
Eurocode 7 is clarified with elaborated geotechnical categories, limit states, design approaches (PP1, PP2 and PP3) and shallow foundations, where the limit state of bearing capacity is specifically explained with associated expressions.
Finally, the differences between the two technical regulations are presented in analytical terms. Then, a numerical example of calculations according to Ordinance 15/90 and according to EC7 for a centrally loaded square foundation in undrained conditions is shown.

• Keywords: plitki temelji; Pravilnik 15/90; nosivost; Eurokod 7; granična stanja; posmična čvrstoća
• Keywords (english): shallow foundations; Ordinance 15/90; bearing capacity; Eurocode 7; limit states; shear strength
• Language: croatian
• URN:NBN: urn:nbn:hr:130:649139
• Study programme: Title: Environmental Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/ inženjerka inženjerstva okoliša (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/ baccalaurea) inženjer/ inženjerka inženjerstva okoliša)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-10-24 09:13:40