Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39): Poslední příspěvky

Zobrazují se záznamy 281-290 z 290

    • Lateral load bearing characteristics of light gauge steel and lightweight concrete shear walls 

      Autor: Quan, Chunri; Huang, Qiang; Li, Dongbin; Chen, Yong
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      In China, there is a new structural system named light gauge steel and lightweight concrete (LSLC) structure, which used lightweight concrete as structural material in composite way with cold-formed steel. Here, the shear ...

    • Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach 

      Autor: Charpin, Laurent; Haelewyn, Jessica; El Idrissi, Anass Cherki; Niepceron, Julien; Masson, Benoît; Toulemonde, Charles; Boulant, Guillaume; Mathieu, Jean-Philippe; Hamon, François; Michel-Ponnelle, Sylvie; Hénault, Jean-Marie; Taillade, Frédéric; Adia, Jean-Luc; Escoffier, Florian
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and ...

    • Natural fiber-reinforced light-weight cement blocks prepared from waste for sustainable development 

      Autor: Chandeng, Latda; Meesak, Thanawat; Tuakta, Chakrapan; Wisuthseriwong, Tidarut; Ueda, Tamon; Jongprateep, Oratai
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Low density of the light-weight cement blocks offers an advantage in terms of dead load reduction, which is advantageous in structural design-reduction of size and numbers of load-carrying structural components is possible. ...

    • Stability of concrete containing blast-furnace slag following exposure to cyclic elevated temperature 

      Autor: Iravani, Ahmad; Feldrappe, Volkert; Ehrenberg, Andreas; Anders, Steffen
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      Concrete is widely used in constructions such as industrial floors or airducts in steel- and casting industry where it is often exposed to long-term or cyclic elevated temperatures. For these applications, thermal stability ...

    • Long span post-tensioned box girder bridge in Bratislava 

      Autor: Chalupec, Adrián; Ondroš, Martin; Novotný, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The paper describes an analysis and detailed design of the 470 m long D4 motorway bridge in the Slovak capital Bratislava. This bridge is a part of 2 932.50 m long D4 motorway crossing of the Danube River and its surrounding ...

    • Utilization of recycled and secondary materials in concrete production - LCA 

      Autor: Horáková, Anna; Kohoutková, Alena; Broukalová, Iva
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The paper describes an assessment of concrete in terms of environmental impacts in relation to the utilization of recycled materials. The article includes a short summary of the literature search on evaluation methods for ...

    • Feasibility experiments of seismic concrete block walls without joint mortar 

      Autor: Choi, Ho; Jin, Kiwoong; Jeong, Jaecheon; Kim, Bongseok; Hwang, Eonju
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The authors developed two types of block systems consisting only of main block and key block without joint mortar in consideration of seismic performance and workability. Two types of block systems have different key block ...

    • Strength and durability characteristics of self compacting concrete (SCC) with recycled aggregate and manufactured sand 

      Autor: Chundupalle, Sashidhar; Seeri, Nirmala; Veera, Sudarsana Reddy; Nelluri, Venkata Ramana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The investigations on self compacting concrete (SCC) with recycled coarse aggregate and Manufactured sand (M-Sand) were performed in this current study. The SCC mixtures were produced with the recycled coarse aggregate of ...

    • Contribution of fly ash to mortar strength development under steam and internal curing 

      Autor: Insako, Ryo; Miyoshi, Yuki; Huynh, Phat Tan; Ogawa, Yuko; Kawai, Kenji
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The purpose of this study is to quantitatively evaluate the effects of steam curing and internal curing on contribution of fly ash to strength development of mortar by using cementing efficiency factor (k-value) that ...

    • Tensile behavior of newly developed undercut anchor in cracked and uncracked concrete 

      Autor: Hatanaka, Tomoyuki; Funaki, Naoki; Tanaka, Reiji; Fujita, Shogo
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)
      The authors have been designing a post-installed anchor that fixes itself into concrete material by expanding the anchor tip in an upward direction, and conducted tensile loading tests to confirm its fundamental dynamic ...