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Prestress connected concrete beam round steel tube concrete column node

A concrete column and precast concrete technology, which is applied in the direction of building and building structure, can solve the problems of unclear node calculation model, unclear force transmission, and difficult construction, and achieves fast construction speed, broad application prospects, and improved performance. Effect

Active Publication Date: 2014-07-16
宝嘉智能科技(南通)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many forms of existing CFST joints, most of which are complex in structure, difficult in construction, unclear in force transmission, and unclear in joint calculation models. Up to now, there is no relatively complete set of joint calculation theory and design methods in our country.

Method used

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  • Prestress connected concrete beam round steel tube concrete column node
  • Prestress connected concrete beam round steel tube concrete column node
  • Prestress connected concrete beam round steel tube concrete column node

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The joint structure of prestressed precast concrete beam circular steel tube concrete column is as follows: figure 1 Shown:

[0023] 1. Manufacture of circular steel pipe concrete and reinforced concrete beams

[0024] The circular concrete-filled steel tube columns (1) and reinforced concrete beams (2) are fabricated in the factory in strict accordance with the relevant specifications and drawings, and four corresponding channels are reserved during prefabrication. Pipe (4), the ring plate (5) and channel steel (6) are welded by surrounding welding at the connection beam of the circular steel tube concrete column (1).

[0025] 2. Assembly of beam-column joints

[0026] After the circular steel pipe concrete column (1) is positioned, the reinforced concrete beam (2) is hoisted and positioned by supporting.

[0027] 3. Tensile prestressed tendons

[0028] Wear the prestressed tendons (3) in the bellows (4), and stretch the prestressed tendons (3). The tension adopts...

Embodiment 2

[0034] See when it is a side column node figure 2 , other measures are the same as in embodiment 1, except that the prestressed tendon is welded on the ring plate (5) at the end of the side column, and this ring plate can be used as a pressure bearing plate when the prestressed tendon is stretched.

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Abstract

The invention provides a precast prestress connected concrete beam round steel tube concrete column node and belongs to the technical field of architectural structures. The prestress connected concrete beam round steel tube concrete column node comprises a round steel tube concrete column, a precast reinforced concrete beam, a prestress tendon, an annular plate and box iron. The round steel tube concrete column (1) and the reinforced concrete beam (2) are precast; a hole channel is formed in the position, corresponding to a beam cross-section, of the precast reinforced concrete beam and the round steel tube concrete column, and a metal bellows (4) is pre-buried in the hole channel; the annular plate (5) is welded at the joint of the round steel tube concrete column (1) and the reinforced concrete beam (2); the box iron (6) is welded on the round steel tube; the prestress tendon (3) is arranged in the metal bellows (4) in a rear penetration mode, and the prestress tendon (3) stretch-draw is conducted; hole channel grouting is finished within 48 hours after the stretch-draw, and the beam column is integrated into a whole. The prestress connected concrete beam round steel tube concrete column node is quick in construction speed, capable of increasing shear capacity of the node and enhancing the connection performance, and wide in the application prospect.

Description

technical field [0001] The invention relates to a joint of a prestressed connected concrete beam circular steel pipe concrete column and belongs to the technical field of building structures. Background technique [0002] Concrete filled steel tubes have been used in construction projects for more than 100 years. Circular concrete filled steel tube has been valued by engineering circles because of its advantages of high bearing capacity, good plasticity and toughness, good economic effect and convenient construction. Circular concrete filled steel tubes can adapt to the needs of modern engineering structures to develop towards large spans, high towers, heavy loads and withstand harsh conditions, and meet the industrial requirements of modern construction technology, so they are being more and more widely used in single-story and multi-story industrial factory building columns , Equipment frame columns, trestle columns, piles, space structures, commercial plazas, multi-store...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/58E04B1/41
Inventor 李振宝王文静解咏平宋坤马华
Owner 宝嘉智能科技(南通)有限公司
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