Precom Girder
Precom Rahmen
POS Rahmen
Bicon Girder
Aicon Girder
HDBox Girder
HiTAB Girder
ecoRDT Girder
Launching Crane
Business Facilities
Factory Facilities
Precom girder for Building
Bridge Business
Bicon GirderBicon Girder structural mechanisms
Bicon Girder structural mechanisms
Stress distribution of long span/smaller heigth
Structural mechanism of the longer span girder with a fixed height
Problem solving of long span/smaller heigth
| Category | Bottom flange | Upper flange |
|---|---|---|
| Problems | Limit of allowable compressive stress on the prestress stage | Accumulation of compressive stress by the external force and prestressing |
| Solution | 1) Multiple prestressing 2) Section expansion |
1) Section expansion 2) Moment prestress |
| Assessment | 1) Uneasy prestressing after slab casting 2) Upgraded constructability with one-stage prestress only |
1) Increase of the overturned risk by the section expansion of the upper flange 1) Realization of the stable section with lower center of mass |
Comparison of cross section
The fundamentals of moment prestress
Full-scale loading test
Anchorage system test
Girder performance test
