# Concrete structure prestress equivalent simulation method

## A concrete structure, equivalent simulation technology, applied in the field of effective simulation, can solve problems such as the inability of finite element analysis of complex structures, and achieve the effect of efficient calculation methods and accurate calculation results

Pending Publication Date: 2019-04-23

POWERCHINA CHENGDU ENG

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## Abstract

The invention discloses a prestress equivalent simulation method in finite element analysis of a complex prestressed concrete structure in the field of water conservancy and hydropower engineering. The prestress equivalent simulation method comprises the following steps of establishing a concrete structure unit according to structure arrangement and size; establishing pre-stressed tendon units according to the specifications and sizes of pre-stressed tendons configured in the concrete structure; applying the cooling value to the prestressed tendon unit, so that the shrinkage force generated byshrinkage of the prestressed tendon is used for simulating the pre-pressing stress of the prestressed tendon on the concrete. The beneficial effects of the invention are as follows the prestressed tendons and concrete units are established respectively; only the prestressing force of the prestressed tendons, the cross-section area, the linear dilatation coefficient and the elasticity modulus needto be clear, so that the actual effect of the prestressed tendons is considered, the prestressed effect can be effectively simulated, only the cooling value of the prestressed tendons needs to be calculated in a complex prestressed concrete structure, the calculation result is accurate, and the calculation method is efficient.

Application Domain

Design optimisation/simulationSpecial data processing applications

Technology Topic

Elastic modulusHydropower engineering +8

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