Results 51 to 60 of about 29,843 (316)
Special problems in evaluating the safety of concrete bridges and concrete bridge components
Abstract The safety and reliability of concrete bridges and bridges with concrete components depend on the ductility of reinforced and prestressed concrete, on the internal and external redundancy typical of concrete construction, and on concrete's demonstrated capacity to carry full design load while at the same time exhibiting severe cracking and ...
openaire +1 more source
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang +5 more
wiley +1 more source
Benefit Evaluation of Preventive Maintenance of Highway Bridges Based on Fuzzy Neural Network
Aiming at the deficiencies in the existing bridge preventive maintenance evaluation, this paper constructs a concrete bridge preventive maintenance benefit evaluation index system based on the common preventive maintenance methods of concrete bridges ...
Yiquan Zou, Jialin Fang, Zedong Liu
doaj +1 more source
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj +8 more
wiley +1 more source
Interface‐Engineered Binary Framework Composites: Advancing Porous Materials for Precision Medicine
Binary framework composites integrate two complementary porous architectures into a unified platform, enabling multifunctional design, enhanced structural tunability, and improved physicochemical performance. By combining high surface area, ordered porosity, interfacial synergy, and versatile functionalization, these hybrid materials offer new ...
Navid Rabiee +3 more
wiley +1 more source
Influence of Cracking on Deflections of Concrete Box Girder Bridges
The problem of cracking and long-term deflection in larger-span prestressed concrete box girder bridges exists throughout the world and has restricted the development of long-span concrete bridges to some extent.
Chao Liu, Dong Xu
doaj +1 more source
Study on the Technical Status of Old Concrete Truss-Arch Bridge Based on Vehicle-Bridge Interaction
With the rapid development of the country’s economy, a large number of heavy vehicles are being used due to the expansion of transportation demand and increased transportation costs.
Renchao Xie, Ming Li, Chihao Xu
doaj +1 more source
One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee +7 more
wiley +1 more source
Optimum design of composite prestressed concrete girder railway bridges
This paper deals with the formulation of design optimisation of pretsressed concrete bridges. The bridge is of a slab-on-girder type, hence modeled as an equivalent orthotropic plate.
Mohammed, S, Mohammad, F, Al-Nuaimi, A
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Alternative Solutions to Meet the Service Needs of Low Volume Bridges in Iowa; TR-452, June 2004 [PDF]
There is a nationwide need for a safe, efficient and cost effective transportation system. An essential component of this system is the bridges. Local agencies perhaps have an even greater task than federal and state agencies in maintaining the low ...
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