Results 91 to 100 of about 8,557 (257)

Pre‐failure behavior of continuous post‐tensioned and post‐grouted beam in case of tendon failure

Structural Concrete, EarlyView.
Abstract Grouted tendons are a common solution for long‐span bridge structures. The grout provides bond and corrosion protection for prestressing steel. However, if the grouting is defective, corrosion of the prestressing steel may initiate and eventually lead to tendon failure.
Olli Asp, Joonas Tulonen, Anssi Laaksonen   +2 more
wiley   +1 more source

A nonlinear dynamic hysteresis model with magnetic–prestress–thermal coupling effect and dynamic electromagnetic losses of a giant magnetostrictive actuator

AIP Advances
Compared with traditional actuators, the giant magnetostrictive actuator has the merits of fast response, high accuracy, and high reliability and has been widely applied.
Yuesong Li
doaj   +1 more source

Prestress Loss Law of Anchor Cables and Deformation Control for Metro Station Deep Foundation Pit in Soil-rock Composite Strata

Chengshi guidao jiaotong yanjiu
[Objective] To control construction risks associated with deep metro station foundation pit in soil-rock composite strata, it is essential to analyze the stress characteristics of anchor cables and excavation-induced deformation during construction ...
SUN Chao, XIN Qingfei, SUN Zhicheng, WU Yufei, ZHOU Hao, XU Dongming, YANG Enze   +6 more
doaj   +1 more source

Mechanical properties of pre-stressed linings with un-bonded annular anchors under high internal water pressure based on large-scale in-situ tests

Yantu gongcheng xuebao, 2019
The new type of pre-stressed lining with un-bonded annular anchors has the advantages of low prestress loss, small weak area and convenient construction. However, its mechanical properties are not clear because of its complex structure, which hinders its
CAO Rui-lang 1, WANG Yu-jie 1, WANG Xiao-gang 1, QI Wen-biao 2, PI Jin 1
doaj   +1 more source

Transfer Length of Strands in Prestressed Concrete Piles [PDF]

, 2002
A top bar effect has been identified in prestressed concrete piles. The effect that this top bar effect has on the development of the prestressing strand is investigated. Strand transfer length is found to be proportional to the observed end slip.
Harries, Kent A., Petrou, Michael F., Wan, Baolin   +2 more
core   +1 more source

Insertion Magnets

, 2017
Chapter 3 in High-Luminosity Large Hadron Collider (HL-LHC) : Preliminary Design Report. The Large Hadron Collider (LHC) is one of the largest scientific instruments ever built.
Ambrosio, G., Anerella, M., Bermudez, S. Izquierdo, Bossert, R., Cheng, D., Chlachidze, G., Dietderich, D., Fabbricatore, P., Farinon, S., Felice, H., Ferracin, P., Fessia, P., Ghosh, A., Hagen, P., Juchno, M., Krave, S., Marchevsky, M., Matos, J. Garcia, Nakamoto, T., Ogitsu, T., Perez, J. C., Prin, H., Ramos, D Duarte, Rifflet, J. M., Sabbi, G. L., Sasaki, K., Schmalzle, J., Segreti, M., Sugano, M., Todesco, E., Toral, F., Volpini, G., Wanderer, P., Wang, X., Weelderen, R. V., Xu, Q., Yu, M.   +36 more
core   +1 more source

Prestress Losses in Concrete Rafters with Openings [PDF]

, 2020
Falah J. Alkhafaji, Amer F. Izzet
openalex   +1 more source

Punching shear of unbonded post‐tensioned steel fiber reinforced concrete slabs: The fiber contribution

Structural Concrete, EarlyView.
Abstract Steel fiber reinforced concrete (SFRC) enhances the flexural capacity of flat slabs and, due to its effectiveness in statically redundant bi‐dimensional elements, represents a viable alternative to conventional reinforcement. Although numerous studies have investigated the flexural behavior of SFRC slabs with and without bonded reinforcement ...
Chiara Gaddi, Matteo Colombo, Marco di Prisco   +2 more
wiley   +1 more source

Time-Limited Aging Analysis of the Containment of Nuclear Power Plants without Monitoring Tendons

Energies
A prestressed concrete containment is the enclosure structure of a nuclear reactor that serves as the last physical barrier of a nuclear power plant (NPP) safety defense system.
Feng Sun, Guopeng Ren
doaj   +1 more source

The unicellular green microalga Botryosphaerella sudetica links plant‐like light protection with an algal lifestyle

New Phytologist, EarlyView.
Summary Nonphotochemical quenching (NPQ) mechanisms fine‐tune light utilisation in the photosynthetic antenna, for example, in response to excess light, to prevent photodamage. NPQ comprises distinct mechanisms, all contributing to photoprotection but acting on different time scales.
Olga Blifernez‐Klassen, Hanna Berger, Viktor Klassen, Swapnil Chaudhari, Thomas Baier, Lutz Wobbe, Olaf Kruse   +6 more
wiley   +1 more source