【摘 要】
：
Maintenance of bridge deck slabs is one of the most demanding tasks in management of road infrastructures because intervention of bridge deck slabs causing traffic disruptions should be avoided as muc
【机 构】
：
Laboratory of Maintenance and Safety of Structures (MCS),(E)cole Polytechnique Fédérale de Lausanne
【出 处】
：
The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Maintenance of bridge deck slabs is one of the most demanding tasks in management of road infrastructures because intervention of bridge deck slabs causing traffic disruptions should be avoided as much as possible considering its large impact on economic activities heavily relying on road transportation.Bridge deck slabs are the most solicitated structural members making up road infrastructures due to severe actions such as wheel loading.Effective technologies optimising the life cycle maintenance of bridge deck slabs are called for by bridge owners.Overlay of Ultra-high Performance Fibre Reinforced Concrete combined with steel rebars (R-UHPFRC) on top of concrete bridge deck slab is a promising method to establish an efficient life cycle maintenance strategy due to UHPFRCs properties such as high compressive and tensile strength (≥ 180 and 10 MPa respectively),tensile strain-hardening behaviour and low permeability.Besides,high workability makes UHPFRC easy-to-handle material on site.
其他文献
Through the history,bridges are designed for varying traffic loads,and designs are made using varying assessments methods.In long-term,weight of permitted vehicles tends to increase over time.To serve
The diagonal crack in the webs of box-girder has been one of the most common diseases in long-span prestressed concrete box-girder bridges in recent years.One of the key reasons is the great prestress
The structural design aims at minimizing the total cost without compromising the functional requirements.The design has to ensure structural integrity by considering the entire life cycle,from design
The use of dynamic programming algorithms for the optimization Markov Decision Processes (MDPS)related to the Inspection,maintenance and rehabilitation (IM&R) decisions of civil engineering facilities
The Precast Segmental Bridge Piers (PSBP) is composed of precast elements joined together by means of wet joints.There have been a number of joints proposed for application of PSBP in regions with mod
Long span bridges are regularly subjected to the simultaneous presence of multiple vehicles,resulting in high traffic volumes,the behaviour of which is governed by drivers/vehicle interaction such as
Bridge expansion joints require inspection and maintenance throughout their lives,and replacement at the end of these lives,and these activities result in considerable costs to the bridge owner and im
In the responsible management of any construction project or asset,life-cycle considerations must be to the fore.This is now widely recognised,even if this has,to a large extent,regrettably not yet tr
In japan,the very real social problem of the corrosion damage associated with aging has reared its ugly head in the case of steel bridges.Old bridges erected in previous eras used riveted joints,and w
This study concerns seismic vulnerability assessment of existing reinforced concrete (RC) bridges with a common structural scheme in Italy (multi-span simply supported girder bridges).Most of these br