Results 61 to 70 of about 340 (173)

Weak‐Story Mitigation and Drift Redistribution in Moment‐Resisting Frames Using Stepping Rocking Walls

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2760-2780, September 2026.
ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
wiley   +1 more source

Construction Technology for Ultra-Long Composite Girders of Shenzhen Museum Using Bonded Post-Tensioning Prestressing Approach

Buildings
Long-span prestressed structures present distinct challenges during tensioning. Their considerable length inherently induces significant tendon friction, resulting in substantial prestress loss. Additionally, prestressing operations within buildings will
Lehua Huang, Dongying Li, Xianggang Su, Wei Dai, Rui Bai, Huan Wang   +5 more
doaj   +1 more source

Development of a Prestressing CFRP Laminate Anchorage System and Bridge Strengthening Application

Advances in Materials Science and Engineering, 2019
For prestressed carbon fiber reinforced polymer (CFRP) tendon anchorage systems to become well established and used on a large scale, practical requirements for structure strengthening may be met by performing a relatively easy anchorage technique using ...
Fangyuan Li, Wenhao Li, Shaohui Lu, Yin Shen   +3 more
doaj   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

Journal of Field Robotics, Volume 43, Issue 6, Page 3868-3892, September 2026.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone, Mohammed Anteet, Pawandeep S. Matharu, Yara Almubarak   +3 more
wiley   +1 more source

Shear Mechanism of Precast Segmental Concrete Beam Prestressed with Unbonded Tendons

Buildings
The shear tests are conducted on six precast segmental concrete beams (PSCBs) in this paper. A new specimen design scheme is presented to compare the effects of segmental joints on the shear performance of PSCBs.
Wu-Tong Yan, Lei Yuan, Yong-Hua Su, Zi-Wei Song   +3 more
doaj   +1 more source

Strains, thermal relaxation and strength loss of prestressing steel at fire temperature. Guidance on the practical use of the Eurocode 2-1-2 model [PDF]

Archives of Civil Engineering
The paper gives guidance on the use of the EC2-1-2 model of degradation of the mechanical properties of prestressing steel at high temperature useful for estimating the loss of prestressing force in members exposed to fire.
Robert Kowalski, Julia Wróblewska
doaj   +1 more source

Behavior of arch composite beam: Experimental and numerical investigation

Results in Engineering
The behavior of arch composite beams prestressed with external tendons is experimentally and numerically investigated in this study, combining the structural efficiency of arch geometry, composite action, and external prestressing.
Abdelrahim Sabsabi, Oussama Baalbaki, Adnan Masri, Hassan Ghanem   +3 more
doaj   +1 more source

On the optimal strut-and-tie models and design approach for the cable-pylon anchorage zone

Journal of Civil Engineering and Management, 2019
The cable-pylon anchorage zone is a typical D-region in a cable-stayed bridge, for which there has been no uniform simplified design method until now. In this paper, based on the extensive statistics of actual projects, topology optimization techniques ...
Nannan Cui, Shiping Huang
doaj   +1 more source

A Study on Rational Pre-Tensioning Schemes for 60 m Prefabricated Railway Box Girders Considering Steel Formwork Constraints

Buildings
Early-age cracking is a common issue in the prefabrication of large-scale box girders, and the application of pre-tensioning techniques to introduce pre-compressive stress is an effective measure to mitigate such cracking.
Tao Zhang, Weitao Ye, Wei Yang, Zuqing Zhao, Lei Wang, Fei Wang, Yuliang Cai   +6 more
doaj   +1 more source

Rational Estimation of Initial State of Post-tensioned Concrete Beams Using Field Measurement Data

International Journal of Concrete Structures and Materials
Accurate estimation of initial prestress is essential for ensuring the structural integrity, durability, and quality management of prestressed concrete (PSC) girders. However, conventional estimation methods that rely on design provisions or experimental
Hyun Woo Park, Dongmin Lee, Jin Ho Hwang, Seong-Cheol Lee   +3 more
doaj   +1 more source