A Calculation Method of Internal Force of Assembled Truss
A computing method and assembled technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of non-reusable, inconsistent mastery ability and business quality, deviation, etc.
Active Publication Date: 2017-09-26
山东高速德建集团有限公司
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Problems solved by technology
[0004] The calculation method of the above-mentioned internal force requires a lot of work and requires a deep knowledge of mechanics. Many technicians use a variety of mechanical software for calculation in practical engineering applications. The calculation results do not display the internal force results in the form of charts. The mastering ability and professional quality are different, and software calculations need to be used again for each construction, and the results after calculation and analysis cannot be reused. The calculation workload is heavy and it is easy to cause deviations in the calculation of various internal forces, which may easily lead to engineering safety accidents
Method used
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Embodiment 1
[0038] The cast-in-place ordinary reinforced concrete slab is 120mm thick, the concrete beam grid is 5.1×5.1m, the beam section size is 0.25m×0.6m, the number of spans is single span, and the floor height is 5.7m. The formwork system panel is made of bamboo plywood.
[0039] 1. Establish a mathematical model: establish a multi-span assembled truss model on the finite element software interface, input the unit uniform load of the upper chord, determine the boundary conditions, conduct internal force analysis, and output the self-weight of the assembled truss and the shaft under the unit uniform load. Force, shear, bending moment, deflection displacement diagrams;
[0040] 2. Create charts: Create calculation charts for axial force, shear force, bending moment, and deflection displacement under the action of unit uniform load; calculation charts for axial force, shear force, bending moment, and deflection displacement under the action of truss self-weight, using the form of chart...
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The invention provides a method for calculating the internal force of an assembled truss, using software to establish a span assembled truss model, inputting the unit uniformly distributed load on the upper chord, determining the boundary conditions of the support, performing internal force analysis, and outputting the self-weight of the assembled truss and the unit uniformly distributed load respectively Axial force, shear force, bending moment, deflection displacement. Create calculation charts of axial force, shear force, bending moment, and deflection displacement under the action of unit uniform load; calculation charts of axial force, shear force, bending moment, and deflection displacement under the action of truss self-weight, and use the form of the chart to mark the calculation results In the corresponding positions of rods and nodes, it is more intuitively displayed.
Description
technical field [0001] The invention belongs to the technical field of construction, and relates to a calculation method and a mathematical model for the internal force of an assembled truss in the formwork support design of the assembled truss. Background technique [0002] Calculation of the internal force of the assembled truss is the most basic technical work in the design of the assembled truss formwork support, and is the key to the design of the assembled truss formwork support. The assembly conditions of truss units and structural parts are carried out according to industry product standards, and the maximum assembly span of a single span and the corresponding maximum load have been considered in product design. In the actual application of the project, different truss units and accessories should be assembled into an assembled truss of corresponding length in combination with the span of the project axis. Due to the safety requirements of engineering construction, ...
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IPC IPC(8): G06F17/50
Inventor 夏凯胡兆文苏钢杨玉桐于付振
Owner 山东高速德建集团有限公司