摘要
在实际工程中应用中,钢筋混凝土板是使用非常广泛的结构件之一,混凝土板的设计是土木工程结构设计的基础,但目前混凝土板的挠度没有专门的计算公式,通常是通过借用由梁推导出板的挠度公式。同时不同国家对工程领域所遵循的设计规则存在一定的差异,本文针对中美两国在建设领域在挠度计算方面设计规则的差异,对我国《混凝土结构设计规范》(GB50010-2010)和美国ACI318M-08相关挠度的计算规范进行了对比分析,并设置了3组试验。结果表明,中国规范和美国规范均未能较好对混凝土板的挠度变化进行描述。采用这两个规范计算挠度,会对板结构的使用性和可靠度造成影响,中美的规范均未对板弯曲的双向性进行深入考虑;在计算混凝土板挠度时,因梁受力比较复杂,套用梁的公式计算挠度会产生较大误差。
The reinforced concrete slab is used very extensive in practical engineering applications, the structural pieces of concrete slab design is the basis of civil engineering structure design, but the deflection of concrete slab of no special formula, usually by borrowing from the beam push the deflection formula is derived in the. And different countries in the field of engineering should follow the design rules exist certain differences, the differences of Sino-US two countries in the field of construction in the deflection calculation design rules for, on China＇s ＂ code for design of concrete structures＂ （GB50010 -2010） and deflection of the American ACI318M -08 computing specification of the comparative analysis, and set up the test 3 group. The results show that Sino-US deflection calculation specification have failed to accurately reflect the plate deflection and deflection calculation results will impact on the plate structure of the usability and reliability, Sino-US specification were not on plate bending of the two-way were in-depth consideration;in the calculation of concrete slab deflection, beam is more complex, apply formula of the beam deflection calculation will produce large errors.
出处
《公路工程》
北大核心
2016年第6期78-81,173,共5页
Highway Engineering
关键词
混凝土
规范
挠度
力学模型
concrete
standard
deflection
mechanical model
