Research on optimization of cantilever building structure based on static balance calculation

Abstract

The inclined cantilevered pile plate wall comprises an inclined pile foundation and retaining board, a new type of retaining structure suitable for high and steep mountainous areas. Through analysis, it is found that the calculation method of this structure can follow the traditional theory and be it. This paper calculates the deformation mechanism and the applicable scope, which lays the foundation for the subsequent comparison with the finite element calculation. The structure load is reasonably distributed through the soil arch effect, and the full cloth thrust is turned into the concentrated thrust of the two adjacent piles, effectively playing the role of the pile body. The analysis found that the structure is suitable for the rock slope with good integrity and high strength, and the anchorage point of the pile body and the surrounding rock inlay entrance is weak. When exploring the influence of geometric layout conditions on the structure, the corresponding assessment indicators are proposed according to the structure characteristics and relevant specifications, and the relevant bearing capacity of the structure under different assessment indicators is evaluated. The results show that the pile length of the cantilever section decreases and the tilt Angle of the pile foundation increases, which will generally improve the stress state of the structure. When the length of the cantilever section exceeds 7 m, the back of the pile is pulled by more than 2 MPa, so it is necessary to properly control the size of the cantilever of the pile plate wall and control the ratio of the cantilever section and the anchorage section at about 1. At the prestress of zero, we calculated the stress and strain of each rod of the structure, And we checked the vertical displacement of the whole structure To find out the location where the structural force and deformation are most significant, provide a reference for the preliminary design of the structure; at the same time, the static and dynamic performance of the cable without prestressed state is analyzed, including linear flexion analysis, auto vibration characteristics, and dynamic reaction studies under seismic action ensure that the structure does not overturn under the load conditions.