摘要
基于临时应急和长期使用相结合的特殊需要,提出了带型钢加劲肋的钢板-混凝土组合板这一新型组合板,型钢加劲肋分别采用工字钢、矩形钢管和由工字钢剖分而成的T字钢三种形式。以加劲肋形式、组合板厚度和栓钉布置为参数,进行了9块组合板的力学性能试验。试验结果表明,通过适当地选择型钢加劲肋形式,合理地布置栓钉和确定混凝土厚度,可以保证带肋钢板和混凝土组合作用的发挥。组合板的正截面承载力可按基于修正平截面假定的极限状态计算;组合板的跨中挠度,可在按现行规范计算的基础上,加上考虑界面滑移影响的附加变形值予以修正。计算值与试验值吻合较好。
In view of special need of combined use for emergency and long-term service, a new type of steel-concrete composite slab with stiffening ribs made of section steel is presented. The mechanical experiment of nine specimens was accomplished taking account of influencing factors such as stiffening rib, thickness of composite slab and arrangement of studs. The test result indicated that it is feasible to use the steel-concrete composite slab in practical engineering project. The normal section load-carrying capacity of composite slab can be calculated by the method according to limit state based on the revised planar cross-section assumption, and the mid-span deformation can be calculated by the current code with the addition of considering deformation values influenced by interface slippage. The calculation values agree well with the experiment ones.
出处
《建筑结构学报》
EI
CAS
CSCD
北大核心
2006年第1期77-82,共6页
Journal of Building Structures
关键词
型钢加劲肋
钢板-混凝土组合板
正截面承载力
附加变形
stiffening rib made of section steel
steel-concrete composite slab
normal section load-carrying capacity
additional deformation
