英语翻译The yield strength of steel was 308MPa for Grade 43 stee

英语翻译
The yield strength of steel was 308MPa for Grade 43 steel (S275) and 390MPa for Grade
50 steel (S355);
.
The yield strength of the steel used in the anti-crack mesh was assumed to be 460 MPa;
.
The elastic modulus of steel was 2.1x105 MPa;
.
The average compressive strength of concrete test samples was 35 MPa,and this is used.
A uniform floor load of 5.48kN/m2 was applied to the whole building,using sand-bags for the
imposed portion,and this is assumed in the modelling.The temperature distributions across
the section of the steel beam and the depth of the slab are assumed to be invariant with
position within the fire compartment.These temperature distributions at any time in the test
are the averages of the recorded test temperature distributions at this time across the beam and
slab.The maximum recorded temperatures of the bottom flange,web and top flange were
834°C,816°C,and 764°C respectively,and the maximum recorded temperatures of the
bottom and top layers of the slabs were 481°C and 129°C respectively.In order to investigate
the structural behaviour of the restrained beam up to extremely high temperatures,these
temperatures have been extrapolated linearly,so that the maximum temperatures of the
bottom flange of the beam and the bottom layer of the slab become 1005°C and 637°C
respectively.The temperature of the bottom flange of the tested beam is used as the "key
temperature" which is quoted in all figures.
Position of BRE large compartment fire test

屈服强度钢308mpa二级43钢（ s275 ）和390mpa三级
50钢（ s355 ） ;
.
屈服强度钢用在抗裂网格假设为460兆帕斯卡;
.
弹性模量的钢2.1x105兆帕斯卡;
.
实际操作中平均混凝土抗压强度测试样本为35兆帕斯卡.
一个统一的楼面荷载5.48kn/m2适用于整幢建筑,砂袋为
强加的部分,当然这是模拟情况下的假定.温度分布
该科的钢梁和深度板坯均假定为不变
位置.这些温度分布,在任何时候,在测试
是平均数的记录测试温度分布在这个时候整个梁和
板坯.最高气温记录的底部法兰, Web和顶部法兰人
834 ° C时, 816 ° C和764 ° C的分别,而最高气温记录本
底层和上层的砖都是481 ° C和129 ° C的分别.为了考察
结构性的行为约束束起来,以非常高的温度下,这些
气温已直线外推,所以说,最高气温的
底部法兰的光束和底层的板坯成为1005 ° C和637 ° C时
分别.温度的底部法兰的测试光束是用来作为"关键
温度" ,这是引用的所有数字.
立场是BRE大型火灾试验