Sökning: "Punching shear"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden Punching shear.

  1. 1. Parametric optimization of reinforced concrete slabs subjected to punching shear

    Master-uppsats, KTH/Betongbyggnad

    Författare :Sofia Thuresson; [2020]
    Nyckelord :Parametric design; Optimization; Punching shear; Concrete; Flat slab; Eurocode 2; Shear reinforcement; Genetic algorithm; Visual programming; Dynamo.; Parametrisk design; Optimering; Genomstansning; Betong; Pelardäck; Eurocode 2; Tvärkraftsarmering; Genetisk algoritm; Visuell programmering; Dynamo.;

    Sammanfattning : The construction industry is currently developing and evolving towards more automated and optimized processes in the project design phase. One reason for this development is that computational power is becoming a more precise and accessible tool and its applications are multiplying daily. LÄS MER

  2. 2. Punching shear in concrete flat slabs supported on slender edge steel columns

    Master-uppsats, KTH/Betongbyggnad; KTH/Betongbyggnad

    Författare :Pasha Jalal; Jose Andres Perez; [2020]
    Nyckelord :Punching shear; ATENA; FEA; precast slab; flat slab; top and foot plate.; Genomstansning; ATENA; FEA; plattbärlag; pelardäck; topp- och fotplåt.;

    Sammanfattning : Punching shear is a failure mechanism caused by concentrated loads, creating a crack pattern that resembles a cone shape or piece of pie starting from the top surface of the slab and prolongs downwards. When the total shear force is greater than the shear resistance of the slab, it may eventually lead to punching shear failure. LÄS MER

  3. 3. The effect of pre-stressing location on punching shear capacity of concrete flat slabs

    Master-uppsats, KTH/Betongbyggnad

    Författare :Saeed Vosoughian; [2019]
    Nyckelord :Concrete flat slabs; Concrete damage plasticity model; Eurocode 2; Nonlinear finite element analysis; Punching capacity; Pre-stressing cables;

    Sammanfattning :         Implementing pre-stressing cables is a viable option aiming at controlling deformation and cracking of concrete flat slabs in serviceability limit state. The pre-stressing cables also contribute to punching shear capacity of the slab when they are located in vicinity of the column. LÄS MER

  4. 4. Inverkan av placering av spännkablar pågenomstansningskapacitet hos armeradebetongplattor

    M1-uppsats, KTH/Byggteknik och design; KTH/Byggteknik och design

    Författare :David Tran; Sebastian Correa; [2018]
    Nyckelord :ACI; critical shear crack theory CSCT ; Eurocode 2; Flat slabs; MC 2010; Post tensioned concrete; Prestress concrete; Punching shear; Slabs; Tendon; Tendon Placement; Tension; Two-way shear; Unbonded tendons; ACI; betonggenomstansning; betongplatta; dragspänning; efterspänd betong; Eurokod 2; Genomstansning; icke vidhäftande spännkablar; kabel; kabelplacering; MC 2010; platta; spännbetong;

    Sammanfattning : På grund av bostadsbristen de senaste åren har byggbranschen varit tvungen att möta den höga efterfrågan på bostäder. Ett sätt att underlätta det tryck som skapats på grund av den höga efterfrågan är att rekonstruera byggnader avsedda för annan användning än bostäder till bostadshus. LÄS MER

  5. 5. Comparison of Punching Shear Design Provisions for Flat Slabs

    Master-uppsats, KTH/Betongbyggnad; KTH/Betongbyggnad

    Författare :Jonatan Aalto; Elisabeth Neuman; [2017]
    Nyckelord :Punching shear; resistance; concrete; flat slab; design provisions; Eurocode 2; case study; parametric study; shear reinforcement; prestressed;

    Sammanfattning : Abstract A new generation of EN 1992-1-1 (2004) also known as Eurocode 2 is under development and currently there is a set of proposed provisions regarding section 6.4 about punching shear, PT1prEN 1992-1-1(2017). It was of interest to compare the proposal with the current punching shear design provisions. LÄS MER