首页|两对边简支另两对边固支组合肋预制底板混凝土双向叠合板的简化塑性设计方法

两对边简支另两对边固支组合肋预制底板混凝土双向叠合板的简化塑性设计方法

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目前组合肋预制底板混凝土双向叠合板(双向叠合板)已得到广泛应用.针对双向叠合板设计计算复杂的特点,基于塑性铰线法对两对边简支另两对边固支双向叠合板的设计计算进行了研究,推导出双向叠合板的极限承载力,确定塑性铰线位置,求解极限均布荷载和极限弯矩.采用极限平衡法对双向叠合板的极限弯矩求解公式进行了简化分析,得到极限弯矩的简化塑性计算公式.采用简化公式对2 个算例进行求解计算,结果表明:对于两对边简支另两对边固支双向叠合板可采用文章的简化公式进行计算,简化后的塑性计算公式计算简便,有利于在工程设计中推广使用.
Simplified Plastic Design Method for Two-way Composite Slab with Precast Combined Ribs Panelsand with Two Opposite Supported Sides and the Other Two Clamped Edges
At present,the two-way composite with pricast combined ribs panal sand slab(two-way composite slab)has been widely used.In view of the complex design and calculation of two-way composite slab,the design and calculation of two opposite supported sides and the other two clamped edges two-way composite slabs are studied based on the plastic stranding method.The ultimate bearing capacity of the two-way composite slab is deduced and determined.The position of the plastic strand is determined,and the ultimate uniform load and ultimate bending moment are solved.The limit equilibrium method is used to simplify the analysis of the formula for the ultimate bending moment of the two-way composite slab,and the simplified plastic formula for the ultimate bending moment is obtained.A simplified formula is used to solve the two calculation examples,and the results show that the simplified formula of this paper can be used for the calculation of two opposite supported sides and the other two clamped edges two-way composite slab,and the simplified plastic calculation formula is easy to calculate.It is conducive to popularization and use in engineering design.

two-way composite slabcombined ribplastic designtwo opposite supported sidestwo opposite clamped edges

周盼、黄海林、黄曙

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湖南科技大学 土木工程学院,湖南 湘潭 411201

湖南省智慧建造装配式被动房工程技术研究中心,湖南 湘潭 411201

长沙市人防工程服务中心,湖南 长沙 410013

双向叠合板 组合肋 塑性设计 两对边简支 两对边固支

湖南省教育厅优秀青年项目湖南省自然科学基金青年基金湖南科技创新计划

19B1882018JJ31612023SK2014

2024

湖南科技大学学报(自然科学版)
湖南科技大学

湖南科技大学学报(自然科学版)

CSTPCD北大核心
影响因子:0.675
ISSN:1672-9102
年,卷(期):2024.39(1)
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