Design method of steel fiber recycled concrete beam

Abstract

The invention belongs to the technical field of architectural design structures, particularly relates to a design method of a steel fiber recycled concrete beam, and mainly provides a novel design structure method of steel fiber recycled concrete to effectively solve the technical problems of easy cracking and poor stiffness of the recycled concrete. The design method of the steel fiber recycled concrete beam comprises the steps of 1, determining the sectional width b and sectional height h of the designed reinforcement steel fiber recycled concrete beam; 2, determining the reinforcement ratiopMu of the reinforcement steel fiber recycled concrete beam; 3, determining the deflection value f of the reinforcement steel fiber recycled concrete beam; 4, conducting cracking checking calculation; 5, calculating the width of cracks. The design structure method not only effectively solves the technical problems of easy cracking and poor stiffness of the recycled concrete, but also effectivelyensures the structural stability of the steel fiber recycled concrete, and meanwhile the method is also effectively applied to weighing or non-weighing structure beams.

Description

Technical field: [0001] The invention belongs to the technical field of architectural design structures; in particular, it relates to a design method for steel fiber recycled concrete beams. Background technique: [0002] Recycled concrete means that waste concrete blocks are crushed, cleaned and graded, mixed with gradation in a certain proportion, partially or completely replaced by natural aggregates (mainly coarse aggregates) such as sand and gravel, and then added with cement, water, etc. According to the combination of aggregates, recycled concrete can have the following situations: all aggregates are recycled aggregates; coarse aggregates are recycled aggregates, fine aggregates are natural sand; coarse aggregates are natural crushed Stones or pebbles and fine aggregates are recycled aggregates; recycled aggregates replace part of coarse aggregates or fine aggregates; recycled concrete is an effective means of dealing with construction waste, but now recycled concrete...

AI Technical Summary

Problems solved by technology

[0004] The main purpose is to provide a new structural design method for steel fiber recycled concrete, which not only effectively overcomes the technical problems of easy cracking and poor stiffness of recycled concrete, but also effectively guarantees the structural stability of steel fiber recycled concrete, and through this The steel fiber recycled concrete structure designed by this method can be effectively applied to weighing or non-weighing structural beams, and the steel fiber recycled concrete beam structure designed by this structural method can also effectively meet the performance indicators of the beam structure design , which opens up new design concepts for the design of steel fiber recycled concrete structures

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