Results 81 to 90 of about 912 (203)

Impact of accurate reinforcement steel assessment on structure longevity and progressive collapse resistance

Sustainable Structures
Current standards for reinforcement steel may not accurately reflect the actual properties of steel used in construction, leading to potentially underestimating the resistance and longevity of structures.
Omer Ghunaim, Said Elkholy, Osama H. Galal, Bilal El-Ariss   +3 more
doaj   +1 more source

Short-circuit Test Methods for 25 kV AC Catenary of Suburban Railways

Chengshi guidao jiaotong yanjiu
ObjectiveTo address the urgent need for standardized implementation of 25 kV AC catenary short-circuit testing in suburban railways, a set of systematic and comprehensive short-circuit test methods is proposed.
Jingjie YAN
doaj   +1 more source

Performance of the PR connections under combined Axial-tension and moment loading

Electronic Journal of Structural Engineering, 2010
The inherent moment capacity of bolted top-seat angle connections with double web angles (TSDW), categorized as partially restrained (PR) connections according to AISC-LRFD specifications, can be considered in analyses of semi-rigid connections ...
A. Pirmoz, M. M. Ahmadi, E. Valadi, V. Farajkhah, S. R. Balanoji   +4 more
doaj   +1 more source

Catenary action on RC beams subjected to missing column scenario

, 2010
Progressive collapse is becoming a major issue globally after the collapse of Ronan Point apartment building (1968) and the recent one, World Trade Centre (2001). The ability to mitigate it has become a main concern.
Kuan, Ian U.
core  

Strengthening of Precast RC Frame to Mitigate Progressive Collapse by Externally Bonded CFRP Sheets Anchored with HFRP Anchors

Advances in Civil Engineering, 2018
Currently, the robustness of precast reinforced concrete frames is attracting wide attention. However, avoiding “strong beams and weak columns” during strengthening against progressive collapse is a key problem.
Jianwu Pan, Xian Wang, Fang Wu
doaj   +1 more source

The prevention of disproportionate collapse using catenary action

, 2007
Disproportionate collapse occurs when the removal of load bearing members (one or more columns, or load bearing walls) causes localized structural damage which leads to further loss of load bearing members and, ultimately, to the collapse of whole or ...
Byfield, M.P., Paramasivam, S.
core  

Prediction model for progressive collapse resistance of concrete beam-column subassemblies considering tensile catenary action using machine learning algorithms

Results in Engineering
Following the gradual crushing and spalling of concrete at large deformations, tensile catenary action (TCA) usually develops in axially restrained reinforced concrete beam-column subassemblies and provides a crucial resistance mechanism to avoid ...
Yihua Zeng, Faisal Khan, Chao Wang, Mohammad Noori   +3 more
doaj   +1 more source

RESEARCH ON VIBRATION CONTROL METHOD OF TRAIN PANTOGRAPH

Jixie qiangdu, 2019
In this paper, the vibration control method of train pantograph is studied. A dynamic equation based on Newton’s second law is established for the two element pantograph model.
GUO YanHong
doaj  

Catenary action in single storey industrial halls subjected to localized fires

, 2017
This paper reports on the results from extensive finite element study of single storey industrial halls subjected to the action of localized fires.
Fodor, Jovan,, Heistermann, Tim,, Sandström, Joakim,, Veljkovic, Milan,, Iqbal, Naveed,   +4 more
core  

Contact force control In multibody pantograph/catenary systems

, 2015
In this paper, a new continuum-based pantograph/catenary model based on the absolute nodal coordinate formulation (ANCF) is proposed and used to develop an effective method to control the contact force which arises from the pantograph/catenary ...
Mohil D Patel (7961852), Pappalardo, Carmine M., Brian Tinsley (8001158), Patel, Mohil D., Shabana, Ahmed A., Ahmed A Shabana (8001809), Tinsley, Brian, Carmine M Pappalardo (8001812)   +7 more
core   +1 more source