The stability concerning lateral buckling of a proposed double-deck truss bridge for highway and railway traffic had to be investigated for feasibilityof omitting the sway bracings.

• 我国计划修建一座双层桥道的公、铁两用桁梁桥,主桁采用纯斜腹杆系,拟不设或少设中间横撑架,要求分析其侧倾稳定性。