Composite column composite beam frame with built-in high-strength concrete core column and its construction method

Abstract

The invention relates to a composite column composite beam frame with a built-in high-strength concrete core column and a construction method thereof, wherein the composite column composite beam frame with a built-in core column of different strength has a built-in asymmetrical steel bone or plastic bone prestressed concrete composite beam, The reinforced concrete composite column with built-in core column, the composite beam is horizontally arranged between the composite columns, and the two are connected by nodes at the intersection; the core column is formed by pouring longitudinal bars, stirrups, and concrete together, and the longitudinal bars are distributed in the core column The stirrups are wrapped around the longitudinal reinforcement, and the core column is placed in the reinforced concrete column; the steel frame or plastic frame in the composite beam is provided with transverse stiffeners, the steel frame or plastic frame at the mid-span is located at the lower part of the composite beam, and the steel frame at the support The bone or plastic bone is located on the upper part of the composite beam, and the prestressed tendons are arranged in the composite beam along the length direction; the prestressed tendons pass through both sides of the core column at the beam-column node, and are tensioned and anchored at the end of the composite column. The invention can obviously reduce the cross-sectional size of the column, and avoid excessive fat columns in the system; the prestressed tendon in the composite beam can generate uniformly distributed reaction force to offset part of the external load.

Description

technical field [0001] The invention relates to a building frame structure in the field of civil engineering structures, in particular to a composite column composite beam frame with a built-in high-strength concrete core column and a construction method thereof. Background technique [0002] Conventional building frame structures are mostly reinforced concrete frames and steel frames, the achievable spans are small, and the bearing capacity of components is low, which has great limitations in practical engineering applications. In recent years, with the development of higher buildings, larger spans and heavy loads, conventional structural systems are facing new challenges. People began to build a structural system with greater rigidity and stronger bearing capacity. Steel bones were added to the concrete, and the concrete and steel bones were bonded together to form a combined structure with high rigidity and convenient construction. Due to the deficiencies and defects of ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a composite column composite beam frame with a built-in high-strength concrete core column, which is used to solve the problem that the existing general reinforced concrete column has a large section size and the prestressed tendons in the composite beam are difficult to arrange at the nodes. Another purpose of this is to provide a construction method for this composite column composite beam frame with built-in high-strength concrete core columns

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