Research On Wind-sand Load Of Building Structure Group Under Wind-sand Environment

For Xinjiang,which is located in the core area of the One Belt One Road and adjacent to the three countries,it is necessary to build housing and other infrastructure.Xinjiang’s severe wind and sand environment makes the building infrastructure in this area frequently suffer from the erosion of sandstorms during the life cycle,which reduces While improving the durability of concrete buildings,it seriously affects the safety of buildings.In my country’s strong wind and sand areas,buildings often not only bear wind loads,but under the environmental background of wind sand movement and desert deposits,buildings also need to resist wind sand loads.Based on this situation,this paper studies the distribution of wind-sand pressure in the building group in the wind-sand environment and analyzes its influence law:(1)Study the wind-sand load on the surface of the single-family house structure under the wind-sand environment,study the speed of the sand-carrying wind,the sandcarrying particle size,the sand density,the height of the building,the width of the building,the length of the building,and the effect of the concrete structure on the single building Changes in pressure on the windward,leeward,and top surfaces of objects,and obtain the influence of various parameters on the wind and sand load of a single building;(2)Establish a single-row multi-building model to study the interference effects of parameters such as spacing,building length,building width,and building height on multiple buildings;establish different spacing,different building length,width,For buildings with high heights,study the wind-sand pressure changes in the wind-sand environment,compare them with the wind-sand pressure on the surface of a single building in the same environment,and study the mutual interference between the building groups in the wind-sand environment;(3)Establish a single-row multi-building model,study the shielding effect of parameters such as spacing and building length on multiple buildings,establish building groups with different spacing and building lengths,and study their wind-sand pressure in a sandy environment Change,and compare with the wind and sand pressure on the surface of single-family buildings to study the shielding effect between multiple buildings;(4)Establish a multi-row and multi-column building group model to simulate the mutual shielding and interference effects of buildings in a sandstorm environment,compare it with single-row multi-buildings and single-row multi-buildings,and study group buildings in wind-sand environment The interaction.And based on the analysis of the results of the sand pressure changes between the above building groups,preliminary conclusions are drawn,and the following suggestions are made for the building structure groups in the strong wind and sand areas:(1)Use wind-proof building materials on the surface of the building,especially the bottom part(within 3m),to resist the wind-sand pressure on the surface of the building and avoid wind erosion;(2)Appropriately increasing the length and width of the building can effectively reduce the wind and sand pressure on the surface of the building;(3)Appropriately increase the distance between adjacent buildings to the increasing effect of wind and sand pressure on the surface between adjacent buildings in the group of buildings;(4)Appropriately increase the distance between the front and rear rows of buildings to reduce the shielding effect of the front rows of buildings on the back rows of buildings in the complex.