Browsing UiS Brage by Author "Sha, Yanyan"
Now showing items 1-20 of 21
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A study on ship-bridge collisions and the significance of the collision energy and impact angle for the probability of collapse
Tronsli, Sindre (Master thesis, 2022)Bridges are a necessity for transportation across waterways in modern society, and the passing of large ships below bridges poses the risk of ship-bridge collision, which can, in the worst case, lead to the total collapse ... -
An efficient approach for ship collision design of reinforced concrete pontoon walls
Sha, Yanyan; Amdahl, Jørgen; Yang, Kun (Journal article; Peer reviewed, 2019)This paper presents an efficient method for collision design of prestressed concrete pontoon walls. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are first established. ... -
Analysis and design of floating bridge subjected to seismic motion and seismic-induced tsunami
Alani, Mondir (Master thesis, 2022)The objective of this master's thesis is to examine one of the bridge designs suggested by the Norwegian Public Road Administration (NPRA) for the Bjørnafjorden crossing. The main goal for NPRA is to build a continuous ... -
Analysis and Modelling of the Bjørnafjorden Floating Bridge subjected to Earthquake and Tsunami loads
Grastveit, Erlend (Master thesis, 2022)The ferry free E39 project includes the crossing of several demanding straits at the Norwegian west coast. Among them is the 5km wide and 600m deep Bjørnafjord located south of Bergen. To construct a floating bridge over ... -
Analysis of a ship-bridge collision at Nordhordland Bridge
Moen, Ida (Master thesis, 2023)The Nordhordland Bridge, a floating bridge located in Norway, spans a length of 1246 meters and was completed in 1994. Over the years, the bridge has experienced two instances of ship collisions so far, resulting in minor ... -
Design of steel bridge girders against ship forecastle collisions
Sha, Yanyan; Amdahl, Jørgen; Liu, Kun (Peer reviewed; Journal article, 2019-10)A key aspect in the design of mega bridge structures across navigable waterways is to ensure bridge safety with respect to accidental ship collisions. Special attention has been paid to providing sufficient impact resistance ... -
Design of steel bridge girders against ship forecastle collisions
Sha, Yanyan; Amdahl, Jørgen; Liu, Kun (Journal article; Peer reviewed, 2019-10)A key aspect in the design of mega bridge structures across navigable waterways is to ensure bridge safety with respect to accidental ship collisions. Special attention has been paid to providing sufficient impact resistance ... -
Dropped object impact analysis on subsea pipelines
Dirdal, Torstein Ulland (Master thesis, 2023)This thesis studies the response of a subsea pipeline's structure when a dropped object hits it. The pipeline and seabed were modelled using solid elements, while the container model was imported from Aker Solutions and ... -
Effect of basalt minibars and steel fibers on the mechanical behavior of concrete.
Nikolov, Nikolay; Sultani, Omed (Bachelor thesis, 2021)Bruken av stålarmering i form av armeringsjern har vært brukt i mange år for å forbedre strekk- og bøyestyrken til betongelementer. Forskningen og utviklingen innen betongfeltet utvides stadig på grunn av at betong er det ... -
Experimental investigation on the mechanical and chemical properties of lightweight aggregate concrete with CO2 curing
Wang, Zihao; Dehestani, Salar; Kakay, Samdar; Sha, Yanyan (Peer reviewed; Journal article, 2021)In the cement and concrete industry, enormous amounts of Carbon Dioxide (CO2) are emitted during their production processes. Carbon dioxide emission significantly contributes to the global climate change, which has been ... -
Impact response of fibre reinforced concrete
Mesloe, Einar (Master thesis, 2022)Fiber reinforced concrete have for long been researched to better find its possibilities withing concrete structures. Today fibre reinforced concrete is mainly used for slabs resting on the ground, or as thin shotcrete. ... -
Investigation on The Mechanical Properties of CO2 Cured Concrete with Natural Aggregates.
Tayyem, Yousef Bassam; Kvamme, Daniel (Bachelor thesis, 2021)Betongproduksjon er en av industriene med størst CO2 utslipp i verden. En liten reduksjon i CO2 utslippene fra denne industrien kan derfor være svært gunstig for å nå klimamålene. Herding ved akselerert karbonatisering ... -
Numerical and analytical studies of ship deckhouse impact with steel and RC bridge girders
Sha, Yanyan; Amdahl, Jørgen; Dørum, Cato (Peer reviewed; Journal article, 2021)Bridges crossing navigable waterways are under the threat of accidental collisions from passing ships. However, previous research focus was mainly placed on ship collision with bridge substructures while ship-bridge ... -
Numerical investigation of blast and fire response of secondary tunnel structures
Idsø, Katrine (Master thesis, 2023)Submerged Floating Tube Bridges (SFTB) are evaluated as potential fixed links in the Ferry-Free E39 project led by the National Public Road Administration (NPRA). However, the risk of internal explosions and the impact of ... -
Numerical investigation on blast-induced rock fragmentation with different stemming structures
Li, Xudong; Liu, Kewei; Sha, Yanyan; Yang, Jiacai; Hong, Zhixian (Peer reviewed; Journal article, 2023-09)Stemming is one of the main concerns in blast of rock engineering due to its impact on explosion energy consumption and rock excavation performance. In this study, blast-induced rock fragmentation under different stemming ... -
Numerical investigation on rock fragmentation under decoupled charge blasting
Li, Xudong; Liu, Kewei; Sha, Yanyan; Yang, Jiacai; Song, Ruitao (Peer reviewed; Journal article, 2023-05)Blasting using decoupled charge is extensively applied in rock excavation and rock fragmentation. In this study, the rock fragmentation induced by blasting using decoupled charge is investigated by combined finite element ... -
Numerical investigations of vehicle collisions and explosions in tunnels
Evje, Anne Vilde (Master thesis, 2022)Tunnels perform a crucial role when it comes to the transportation system. Because of the possibility of an explosion occurring in the structure, either due to terrorism or an accident, it is important to take it into ... -
Pendulum impact test of reinforced concrete structure
Kesen, Ali Rahim; Bjørndal, Eivind (Master thesis, 2021)Floating offshore concrete structures are vulnerable to collisions with ships, and the likelihood of accidents increase with increasing numbers of structures. Current design codes are not accurate for impact short duration ... -
Seismic response of floating bridges
Fjeldstad, Susanne Lien (Masteroppgave/UIS-TN-IMBM/2020;, Master thesis, 2020-06-15)The object of this study is to collect the results of an end-anchored floating bridge when it is subjected to seismic excitations. The bridge is an end-anchored floating bridge, mounted on 46 separate pontoons, with an ... -
Shipping Container Impact with Bridge Girders
Dyrkolbotn, Simen Mundal (Master thesis, 2021)Aluminium bridge decks have been proposed as alternatives to traditional steel bridge decks. These girders can meet all design criteria for bridges and have the advantages of low density and high corrosion resistance. ...