The way of pre-reserving oval bolt hole in steel plate support design in space grid structure so that it can provide lateral stiffness for the structure is a common practice. However, the details about this plate support can't be found in related codes. As a result, what effect this kind bolt hole could influence on the mechanical performance of the support needs to be further studied. In order to solve this problem, a common used plate support with oval bolt holes is discussed. The contact between the bolt and the hole, the bolt cap and the plate, the bottom plate and the base plate is established respectively with the ABAQUS/Standard, which is to analysis the impact of the oval bolt holes on the load capacity and lateral stiffness of the steel plate support.
