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针对规范GBJ3-88中墙梁设计方法存在的问题进行研究 ,提出补充和改进建议。通过简支墙梁的有限元分析摸清其应力和内力分布 ,提出托梁内力近似计算公式和承载力简化计算公式 ,并改进了墙体验算。给出了计算实例并与其他设计方法进行了对比。
Aiming at the existing problems of the standard GBJ3-88 middle wall beam design method, some suggestions for supplementing and improving are put forward. Through the finite element analysis of simply supported beam, the stress and internal force distribution are found out. The approximate calculation formula of the internal force of the beam and the simplified calculation formula of bearing capacity are proposed and the wall checking calculation is improved. The calculation examples are given and compared with other design methods.