The vortex-induced force of bridges is not synchronized along the span direction. spatial correlation becomes obvious when bridge structure gradually increases, and mass decreases. Therefore, it important to study spanwise forces long-span ensure accuracy prediction vibration response bridges. established improved theory experimental research methods for analysis large-span by discussing during...

This paper describes a method of performance evaluation and remaining life prediction for an aged reinforced concrete (RC) T-girder bridge by J-BMS RC version via close visual inspection data, and also verifies the assessment results obtained as outputs from the Bridge Rating Expert System (RC-BREX) which is a subsystem of the J-BMS, to evaluate the effectiveness of the system. The Bridge Manag...

The main girders of the I-section steel-concrete composite twin girder bridge is usually connected together by frame cross bracing. When with welding, flat plates for stiffening can be used to strengthen connection ensure effective transfer forces between two. In this paper, finite element simulation method study influence plates. results show that, compared structure without stiffening, when s...

Because of their tensile strain-hardening characteristics, ultrahigh-performance concrete (UHPC) materials offer significant advantages in terms beam shear capacity and postcracking behavior compared to conventional reinforced-concrete beams. These rely on UHPC’s ability sustain its characteristics at the structural level. This paper reports results an experimental investigation parameters infl...

To compensate the incapability of traditional cable force adjustment methods to automatically optimize forces, this paper proposes Midas/Civil and MATLAB as a structure calculator optimizer, external memory data transfer. Initial solutions from conventional can be optimized by internalizing influence matrix into multiobjective particle swarm optimization algorithm with mutation operation constr...

We study the energy decay of a damped Euler-Bernoulli beam which is subject to point-wise feedback force representing Shape Memory Alloy (SMA) cable. The problem we consider that paper by [Liu et al. Int. J. Struct. Stab. Dyn. 17 (2017) 1750076] but, for simplicity, our mod-elization does not take into account additional stiffness term they considered. An explicit expression given resolvent und...

We present a design of the girder to accommodate injection of 1133 MeV kinetic energy H− ions from the linac [1] into the LEB. This design is based on Colton and Thiessen’s design [2] for 600 MeV ions, and does not require a modification of the current [3] LEB lattice.

The purpose of this paper is to eliminate the Electromagnetic Interference (EMI) from kicker power supply. Analysis of the EMI source and the propagation path are the beginning missions. The radiated and conducted EMI both affected the Integral Current Transformer (ICT) normal operation because of the space limitation for TLS in NSRRC. The ICT is to measure injection efficiency, thus, ICT locat...