A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A precast concrete beam A beam for use in construction of a long span bridge structure comprising:a reinforcing member having a geometric configuration selected from a group consisting of: a “U” tub beam with composite deck system; a decked I-beam; and an adjacent box beam;said geometric configuration formed of a UHPC mix having:an initial compressive strength, f′ci=10.0 ksi;a compressive strength at service, f′c=17.4 ksi;a modulus of elasticity of concrete, Ec=6500 ksi;a residual rupture stress, frr=0.75 ksi; anda concrete unit weight, wc=0.155 kcf; andsaid UHPC mix further comprises a plurality of discontinuous fibers distributed randomly throughout a concrete matrix, said plurality of discontinuous fibers formed of a material selected from the group consisting of: steel; polypropylene; nylon; polyvinyl alcohol; polyolefin; polyethylene; polyester; acrylic; aramid; carbon; silica glass; basalt glass; glass fiber-reinforced polymer; and basalt fiber-reinforced polymer.
A precast concrete beam A beam for use in construction of a long span bridge structure comprising:a reinforcing member having a geometric configuration selected from a group consisting of: a “U” tub beam with composite deck system; a decked I-beam; and an adjacent box beam;said geometric configuration formed of a UHPC mix having:an initial compressive strength, f′ci=10.0 ksi;a compressive strength at service, f′c=17.4 ksi;a modulus of elasticity of concrete, Ec=6500 ksi;a residual rupture stress, frr=0.75 ksi; anda concrete unit weight, wc=0.155 kcf; andsaid UHPC mix further comprises a plurality of discontinuous fibers distributed randomly throughout a concrete matrix, said plurality of discontinuous fibers formed of a material selected from the group consisting of: steel; polypropylene; nylon; polyvinyl alcohol; polyolefin; polyethylene; polyester; acrylic; aramid; carbon; silica glass; basalt glass; glass fiber-reinforced polymer; and basalt fiber-reinforced polymer.
Long span bridge designs
SAID MOHAMED J (author)
2024-10-15
Patent
Electronic Resource
English
| NTIS | 1983
| British Library Conference Proceedings | 1994
Competitive designs for long-span arch bridge over the Mosel at Coblenz
| Engineering Index Backfile | 1928