This study presents experimental investigations on dynamic characteristics of bridges coupled with vehicles in order to clarify the vehicle-bridge interaction under earthquakes. Oscillator experiment is carried out at a one-box girder bridge coupled with a vehicle. Both acceleration responses of the bridge and those of the vehicle are measured in horizontal and vertical directions. The dynamic ...

The Softened Truss Model Theory applied to a prestressed concrete multiple cell box is developed in this study. In this theory, the concrete torsional problem is solved by combining equilibrium conditions, compatibility conditions and constitutive laws of materials. Up to now the theory has been applied only to the case of pure torsion with single cell section. An algorithm is presented to deal...

HULL GIRDER IN GROUNDING ACCIDENTS by DANIEL TROY PIPPENGER B.S., Marine Engineering, United States Coast Guard Academy, 1986 Submitted to the Department of Ocean Engineering in Partial Fulfillment of the Requirements for the Degrees of MASTER OF SCIENCE IN NAVAL ARCHITECTURE AND MARINE ENGINEERING and MASTERS OF ENGINEERING FOR THE PROGRAM IN MARINE ENVIRONMENTAL SYSTEMS at the Massachusetts I...

The presented research deals with the optimal design of main girder an asymmetric box cross-section double-beam bridge crane. Moth-Flame Optimization algorithm (MFO) is used for solving this multicriteria optimization problem. This a relatively new population-based metaheuristic method. paper takes following criteria as constraint functions: strength, local stability plates (webs and top flange...

The excessive deflection of large-span cantilever cast prestressed concrete (LCCPC) box girders has always been a complex problem to be solved in bridge engineering. To analyze the effect shear deformation at segmental joints on LCCPC girders, comparison tests were carried out three (PC) I-girders with and PC I-girder without joints, finite element simulation method was proposed based tests. Su...

Aiming at the fatigue cracking of steel bridge deck pavement and shortage river sand resources, a sea RPC scheme was proposed. Taking Quanhe box girder as research background, simulation model established by using ANSYS finite element software, mechanical analysis RPC-asphalt composite structure carried out to determine most unfavorable load position. A three-point test study performance specim...