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介绍了《高强钢设计规程》(征求意见稿)中关于压弯构件和受弯构件计算的相关条款,并与我国现行GB 50017—2003《钢结构设计规范》进行了比较。收集了目前高强钢压弯构件、受弯构件的试验,对试验进行了有限元模拟。在此基础上,应用有限元模型对高强钢焊接截面880组压弯构件、460组受弯构件的极限承载力进行了计算。将极限承载力的有限元计算结果和规范公式的计算值进行了比较,对高强钢焊接截面压弯构件和受弯构件的计算模式不定性做了数理统计分析,得到了高强钢压弯和受弯构件计算模式不定性的统计参数,为下一步提出高强度钢材材料设计指标提供了依据。
The relevant clauses on the calculation of compression-bending members and flexural members in “Design Rules for High-strength Steel” (Draft) are introduced and compared with the current “Design Code for Steel Structures” of GB 50017-2003 in our country. The current high strength steel bending members, flexural members of the test collected, the finite element simulation of the experiment. On this basis, the ultimate bearing capacity of 880 sets of flexural members and 460 sets of flexural members of high strength steel welded sections were calculated by finite element method. The ultimate bearing capacity of the finite element calculation results and calculated values of the formula are compared, the high-strength steel welded section of the bending and flexural members of the computational model to do a mathematical analysis of uncertainty, obtained high-strength steel bending and bending The statistical parameters of the calculation uncertainty of the flexural members provide the basis for the design of the high strength steel material in the next step.