Fiber Reinforcement Polymer(FRP) has been widely accepted as an innovative material for renovation and strengthening of existing infrastructures. Among the FRP materials, the Poly-p-phenylene benzobisoxazole (PBO) fiber sheets attracted great attention in recent years because of the high strength, high Young modulus and high energy absorption capability. In this study, a PBO Prestressing Upgrad...

The LCLS x-ray FEL has recently achieved its 1.5Angstrom lasing and saturation goals upon first trial. This was achieved as a result of a thorough pre-beam checkout, both traditional and beam-based component alignment techniques, and high electron beam brightness. The x-ray FEL process demands very tight tolerances on the straightness of the electron beam trajectory (<5 μm) through the LCLS und...

Abstract This study employs the finite element-based CSiBridge v.20.0.0 software to examine response of a single-cell prestressed box-girder bridge subjected Indian loading conditions. The analyses is carried out on simply supported considering specifications Road Congress (IRC) 6:2017, IRC 18:2000 and 21:2000. An existing model skewed validated with published one. A convergence conducted for d...

Abstract. Recently, an indirect displacement estimation method using data fusion of acceleration and strain (i.e., acceleration-strain-based method) has been developed. Though the method showed good performance on beam-like structures, it has inherent limitation in applying to more general types of bridges that may have complex shapes, because it uses assumed analytical (sinusoidal) mode shapes...

in Cl/Iwda 10 pre/ellSioll six girders of (I l'lJJlcre/e hiXhway bridXe, builf ill the C;fY o/Calxa,-y, A /berra. Thl' bridge \l'lH cOIUlrllcted IIsillg 13 T-bufh seerirlll ,)rt'len~i(J/led precast ('(IIlcrele girder.\' ill f'(l"h .lpWI. COIl/illlliry of rhe two ,lpan.I' 1\'(/.\' l/chie l'ed by IISillK po.w·(ellsioll f'C/ .weel lendolls extending almlg the emir(' Imgt" of file bridge. This pape...

Elevated rail transit has been developed in some big cities in China in recent years. However, specialized codes for design of the bridges in the elevated rail transit system have not yet been established. Based on the prestressed concrete (PC) box girder bridges on Guangzhou metro line 4, some technical features of design principle and technology requisition, ensemble plan and design load of b...