Essays about: "pre-stressed"

Showing result 1 - 5 of 13 essays containing the word pre-stressed.

1. 1. Stress dependent flow behavior in sublevel caving mines

   University essay from KTH/Jord- och bergmekanik

   Author : Linde Mattsson; [2022]
   Keywords : level caving; Material Flow; Mining; Discrete element modeling.;

   Abstract : Sublevel caving is an underground mass mining method that utilizes the gravity-induced material flow for ore extraction. The granular flowbehavior is one of the main phenomena describing this mining method’s efficiency; therefore, a good understanding of the flow behavior is essential. READ MORE

3. 2. A comparison of pressurised cylinders in HIP systems using CFD and FEM

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Lisa Lindqvist; [2021]
   Keywords : Hot isostatic pressing; HIP; Pressure vessel; Monoblock; Axisymmetric; FSI;

   Abstract : A hot isostatic press (HIP) is a system which utilises high temperatures and pressure in order to densifyand enhance the material properties of components in the aerospace, automotive and additive manufacturingindustries, to mention a few. Quintus is a world leading manufacturer of HIP systems, and this master’s thesiswork has been written in collaboration with them. READ MORE

4. 3. Making the connection : Are post-tensioned CLT walls an economically sound option?

   University essay from Uppsala universitet/Byggteknik och byggd miljö

   Author : Jakob Mehlig; Elisabeth Wade; [2021]
   Keywords : CLT; post-tensioned; shear wall; pre-stressed; cost; connections; stability;

   Abstract : This thesis aims to compare the cost of post-tensioned connection systems with conventional connections for the transferal of uplift forces in CLT stabilising walls. The desire for taller timber buildings has increased over time, in part due to environmental aspects but also to meet demands from an urbanizing population. READ MORE

5. 4. Monitoring and Modelling of the Abiskojåkka Bridge

   University essay from Luleå tekniska universitet/Byggkonstruktion och brand

   Author : Kasper Furenstam; [2020]
   Keywords : Prestressed bridge; Abisko; Monitoring; thermal effects; FEM;

   Abstract : The infrastructure of today is getting older and problems caused by deterioration over time is affecting the service life of these structures. In Sweden most of the existing bridges were constructed 60 to 70 years ago, rising the need to determine the state of health of the bridges as the maintenance costs will increase heavily. READ MORE

6. 5. Concrete floor : Design of prefabricated pre-stressed hollow core slabs with verification through PRE-Stress and comparison with site-cast slab

   University essay from KTH/Byggteknik och design

   Author : Alexander Eriksson; Veronica Flykt; [2020]
   Keywords : Pre-stressed hollow core slab; site-cast slab; design; concrete; Förspända håldäcksplattor; platsgjutet bjälklag; dimensionering; betong;

   Abstract : The most common prefabricated concrete slabs are hollow core slabs, which are usually pre-tensioned. How to design these parts is not compiled today in a manual where it is clear how this is done, this knowledge is generally classified as expert knowledge. READ MORE