丰台站SRC承轨梁结构设计

Chen Liu,Hu Tang,Hongguang Mi,Honggang Bai,Shaowei Gong,Yilong Li,Changjie Ye

Building Science（2020）

Cited 0|Views9

Abstract

型钢混凝土组合结构以其高强的承载性能以及优越的防火、防腐能力越来越受到工程领域的重视,其应用也从静力结构拓展到承受疲劳荷载作用的结构,如公路、铁路、桥梁等.本文依托于正在建设的丰台铁路大型综合枢纽项目,采用通用有限元分析软件MIDAS,对SRC承轨梁的承载力、疲劳强度进行了分析.结果表明:在设计荷载作用下,SRC承轨梁各组件(混凝土、纵向钢筋、箍筋、型钢)应力水平均低于相应的容许应力限值,梁内型钢、钢筋应力幅亦低于相应的容许应力幅限值,满足设计预期.

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Pretraining has recently greatly promoted the development of natural language processing (NLP)
We show that M6 outperforms the baselines in multimodal downstream tasks, and the large M6 with 10 parameters can reach a better performance
We propose a method called M6 that is able to process information of multiple modalities and perform both single-modal and cross-modal understanding and generation
The model is scaled to large model with 10 billion parameters with sophisticated deployment, and the 10 -parameter M6-large is the largest pretrained model in Chinese
Experimental results show that our proposed M6 outperforms the baseline in a number of downstream tasks concerning both single modality and multiple modalities We will continue the pretraining of extremely large models by increasing data to explore the limit of its performance

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【要点】：本文研究了SRC型钢混凝土组合结构承轨梁的承载力和疲劳强度，证明了其在丰台铁路大型综合枢纽项目中的适用性。

【方法】：利用通用有限元分析软件MIDAS对SRC承轨梁的承载力和疲劳强度进行模拟分析。

【实验】：通过模拟分析，验证了在设计荷载作用下，SRC承轨梁的各组件应力水平及应力幅均满足设计预期，具体数据集名称未提及。