Automated calculation of a slab on an elastic base for additional load
Abstract
A technical inspection and assessment of the condition of the reinforced concrete floor slab of building No. 14 of JV "Modern-Expo" LLC, Rivnenska street, 4 Strumivka villages. The survey was carried out by specialists of the Scientific and Research Construction Laboratory of the Lutsk National Technical University at the Department of Construction and Civil Engineering. Based on the results of the survey, a verification calculation of the load-bearing capacity of the floor slab was performed based on the weight of the slab and the wheels of the Linde H100D/600 forklift. The floor slab was calculated as a slab on an elastic base. The existing soil and foundations under the columns are supports for the slab. Columns are placed with a step of 6 meters in both directions. The base soil consists of crushed stone, bulk soil, humus loess sand, loess sand, fine sand (according to the engineering and geological conclusion)
To determine the maximum stresses, two positions of the loader on a 6x6 m slab fragment were considered. Positions 1. The geometric center of the loader is placed in the middle of the slab. The load from the wheels is taken according to the technical characteristics. The front wheels transmit a load of 12.4525t each to the plate. The rear wheels transmit a load of 1.697t each to the slab. Positions 2. The front axle of the loader is placed in the middle of the slab. The load from the wheels is taken according to the technical characteristics. The front wheels transmit a load of 12.4525t each to the plate. The rear wheels transmit a load of 1.697t each to the slab.
As a result, the position in the first variant, when the geometric center of the loader is placed in the middle of the plate, turned out to be the most unfavorable position.
After carrying out a verification calculation of the bearing capacity of the floor slab from the own weight of the slab and the wheels of the Linde H100D/600 loader according to the first load option, a conclusion was made about the sufficient bearing capacity and the possibility of using the slab under the planned loads.
