A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bomb Damage Repair. Precast Slab Design
A study was made to evaluate various methods of rapid repair of bomb craters on runways using precast concrete slabs as structural elements. Primary focus was on optimum utilization of the concrete slabs when placed on debris backfill and on compacted select material backfill. Three primary repair concepts were studied: placement of slabs flush with the surrounding pavement and interlocked at the edges with concrete grout (Flush Slab Method); placement of slabs slightly below the surrounding pavement and surfaced with a 2-inch thick concrete cap screeded flush with the old pavement (Submerged Slab Method); and placement of the slab flush with the old pavement with no-load transfer mechanism (German Method). Analyses were made of the various repair methods based on estimated time of repair and on expected structural response under aircraft loading. Time estimates were subdivided into time elements for the major repair tasks. Structural analyses were conducted with layered elastic and modified finite element computer codes. Repair methods evaluated as having most potential for development as standard procedures were those involving use of slabs submerged in a capped-concrete matrix. Analyses indicated that the other two methods offered less potential for future development. It was recommended that field tests be conducted to further evaluate all three methods. (Author)
Bomb Damage Repair. Precast Slab Design
A study was made to evaluate various methods of rapid repair of bomb craters on runways using precast concrete slabs as structural elements. Primary focus was on optimum utilization of the concrete slabs when placed on debris backfill and on compacted select material backfill. Three primary repair concepts were studied: placement of slabs flush with the surrounding pavement and interlocked at the edges with concrete grout (Flush Slab Method); placement of slabs slightly below the surrounding pavement and surfaced with a 2-inch thick concrete cap screeded flush with the old pavement (Submerged Slab Method); and placement of the slab flush with the old pavement with no-load transfer mechanism (German Method). Analyses were made of the various repair methods based on estimated time of repair and on expected structural response under aircraft loading. Time estimates were subdivided into time elements for the major repair tasks. Structural analyses were conducted with layered elastic and modified finite element computer codes. Repair methods evaluated as having most potential for development as standard procedures were those involving use of slabs submerged in a capped-concrete matrix. Analyses indicated that the other two methods offered less potential for future development. It was recommended that field tests be conducted to further evaluate all three methods. (Author)
Bomb Damage Repair. Precast Slab Design
W. N. Brabston (author)
1984
124 pages
Report
No indication
English
Civil Engineering , Construction Equipment, Materials, & Supplies , Runways , Bomb damage , Repair , Concrete , Prefabrication , Tiles , Field tests , Resource management , Air Force research , Test and Evaluation , Structural analysis , Structural response , Grout , Precast concrete slabs , Bomb craters
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