加固楼层静载试验及安全性评估实例分析

以设备房加固工程为背景,采用有限元软件MIDAS/CIVIL采用板梁单元法建立空间模型,对最不利荷载作用下的挠度值、应力值进行了计算,得出相应的理论值,并与实测值进行比较,评估其结构的安全性。结果表明:该楼层在试验荷载作用下的最大挠度值均小于设计值和规范规定值,应力值均未超过材料的屈服强度,并具有一定的应力安全储备,加固后2楼机房在原有机柜不变的基础上能够承载另外5台机器。

Reinforcement Floor Static Load Test and Safety Assessment Case Study

Strengthening works to the equipment room as engineering background, by using special fi- nite element software bridge MIDAS/CIVIL establishment of a spatial model by plate beam element method. Calculate the most unfavorable condition of the deflection, stress, assess its structural safety. The results show that： the floor of the test load the maximum deflection values are less than the de- sign values and norms specified value, the stress value did not exceed the material yield strength, and stress has a certain safety margin, reinforced on the second floor room in the original based on the same rack capable of carrying five other machines.