Essays about: "post tensioned"

Showing result 1 - 5 of 7 essays containing the words post tensioned.

1. 1. 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

3. 2. Structural Health of a concrete tunnel lining under complex in situ loading

   University essay from KTH/Bro- och stålbyggnad

   Author : LEONARDO DALLA ROSA; [2019]
   Keywords : ;

   Abstract : Supporting structures were designed for a utility tunnel in hard rock which was to be intersectedby some road tunnels. With the intersections involving partial overlapping between the idealcross-sections, a concrete lining and post-tensioned steel cables were added to support theutility tunnel prior to the excavation of the road tunnels. READ MORE

4. 3. Analysis of post-tensioned concrete box-girder bridges : A comparison of Incremental launching and Movable scaffolding system

   University essay from KTH/Bro- och stålbyggnad

   Author : Hamad El Hamad; Furkan Tanhan; [2018]
   Keywords : Movable scaffolding system; MSS; Incremental launching; post-tension; prestress; slen- derness; box-girder; Stockholm Bypass; Movable scaffolding system; MSS; Etappvis lansering; efterspänning; förspänning; slankhet; box-girder; Förbifart Stockholm;

   Abstract : When designing a bridge it is of high importance that the geometry for the cross section is optimized for the structure. This is partly due to the influence of the amount of material needed and its impact on the budget and environment. READ MORE

5. 4. Post-tensioned stress ribbon systems in long-span roofs : Case study: Västerås Travel Center

   University essay from KTH/Betongbyggnad

   Author : Samih Ahmed; Guayente Minchot; [2018]
   Keywords : cable suspended; stress ribbon; roof structure; post-tensioned concrete; SAP2000;

   Abstract : The stress ribbon system has numerous advantages, that includes but are not limitedto: increasing overall stiffness, control deflections and reduction of materialsconsumption, which in turn, reduces the load and the cost. Nevertheless, its use isusually limited to bridges, in particular, pedestrian bridges; this can be attributedto the insufficient space that buildings’ usually have for end supports, or/and backstayedcables, that can accommodate the expected high pull-out forces occuring atthe cables’ ends. READ MORE

6. 5. Numerical analyses of concrete buttress dams to design dam monitoring

   University essay from KTH/Betongbyggnad

   Author : Daniel Svensen; [2016]
   Keywords : Concrete; buttress dams; thermal effects; finite element analysis; instrumentation; alarm values; alert values; Betong; lamelldammar; termiska effekter; finit element analys; intstrumentering; larmvärden;

   Abstract : Old concrete buttress dams are sensitive to cracking if exposed to large temperature variations. The cracks can make dams sensitive to failure, depending on the size and location of the cracks. These problems can be overcome by lowering the temperature variations and stabilizing the dams. READ MORE