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Rebar discharging method

A technology for steel bars and blanking, applied in special data processing applications, instruments, electrical digital data processing, etc.

Active Publication Date: 2019-05-10
HUBEI HUAYUE AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in multi-objective programming, the selection of weights has some empirical components, and the selection of weights in different projects is very subjective

Method used

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Embodiment Construction

[0088] The steel bar blanking method provided by the embodiment of the present invention considers multiple problems such as the length of the remaining raw material two steel bars after cutting, the waste rate of the steel bar, and the middle span of the beam, and can maximize the use of the entire steel bar, reduce the waste rate of the steel bar, and significantly reduce Cutting times and welding times reduce material and labor costs.

[0089] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0090] The reinforcing bar blanking method that the embodiment of the present invention provides, comprises the steps:

[0091] Step 1: Collect the length of steel bar to be cut and the length of raw material steel bar:

[0092] Specifically, you can call th...

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Abstract

The invention discloses a rebar discharging. The rebar discharging comprises the steps that a raw material rebar combination mode is adopted for blanking, after combination cutting, the effect that the length of the rest raw material rebar is the smallest and not larger than the set threshold value is set as the target, the raw material rebar blanking combination is screened through the intlinprogfunction in matlab, and the result of to-be-discharged rebars and the corresponding raw material rebar blanking combination is output; the effect that after cutting, the length of the rest o-be-discharged rebars is the smallest is set as the target, the raw material rebar blanking combination is solved, the smallest rebar wasting rate is set as the target, the situation that welded joints do notlocated in the girder span serves as the constraint, the situation that the length of each rest to-be-discharged rebar after cutting is at most composed of two rebars is set as the hard constraint, orthe smallest rebar wasting rate serves as the target, the situation that each rest to-be-discharged rebar after cutting is only composed of one rebar serves as the hard constraint, and the blanking combination of the rest to-be-discharged rebars after cutting is obtained through a corresponding lingo model. Through the rebar discharging, the material cost and the manpower cost can be remarkably reduced.

Description

technical field [0001] The invention relates to a steel bar blanking method, which belongs to the technical field of civil engineering. Background technique [0002] For a 100,000-square-meter civil engineering project, based on a general waste rate of 3%, excluding labor costs, the cost of the entire project is about 1 million wasted. Therefore, establishing a reasonable mathematical model and optimizing a reasonable steel bar blanking list and cutting method are of great significance to saving project costs. [0003] In addition, in the optimization calculation process of steel bars, welding joints in the beam span has always been a difficult problem to solve. Even if the constraint conditions of the beam span can be given, it is usually difficult to obtain the optimal solution of the problem due to the complex conditions. [0004] For this reason, an optimization method for cutting steel bars with lower waste rate is proposed, which has very significant economic and soci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21F11/00B21F23/00G06F17/50
Inventor 李业学曹林涛王元元张素香
Owner HUBEI HUAYUE AUTO PARTS
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