CN105544865A - Prestress assembly type combined special-shaped column - Google Patents

Abstract

The invention discloses a prestress assembled combined special-shaped column, which comprises a steel plate, a high-strength bolt and a prestress cable; the steel plate includes four kinds: angle steel plate, interior angle steel plate, outer angle steel plate, stiffening rib steel sheet. The column is formed by splicing an inner angle steel plate and a long limb back of an outer angle steel plate, splicing an angle steel plate and a short limb back of the inner and outer angle steel plates, aligning bolt holes, fixing by using high-strength bolts, welding stiffening rib plates to form an L-shaped special-shaped column, and arranging a prestressed cable; or the splicing mode is changed, and the special-shaped column in the shape of T or cross can be formed. The prestress assembly type combined special-shaped column has the advantages of full energy consumption and strong bending moment resistance, ensures that the transverse displacement of the column top is smaller, and meets the requirement of a strong column.

Description

A prestressed assembled composite special-shaped column

technical field

The patent of the invention belongs to the technical field of building structures, and relates to a novel prestressed assembled composite special-shaped column.

Background technique

The collapse of buildings in earthquakes is the main cause of threats to people's lives and property losses. The technical advantages of prestressing can effectively reduce the damage of buildings in earthquakes. Stress locks and steel are fully energy-dissipating and have a strong ability to resist bending moments, so that the lateral displacement of the column top is small, which meets the requirements of strong columns.

This prestressed assembled combined special-shaped column has a small cross-sectional size, and the column can be as wide as the wall, which avoids the problem of convex angles at the inner corners of the building and thus affecting the use. Today, when people pay more and more attention to the quality of life, avoiding the convex angle caused by the pillars is undoubtedly in line with the requirements of contemporary use and living.

It meets the requirements of modern industrial batch production and rapid construction and installation, and realizes real factory production, on-site installation, and fast construction period.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a novel prestressed assembled composite special-shaped column with high energy strength and good seismic performance, which is suitable for industrialized mass production and can be quickly installed on the construction site.

The technical scheme adopted in the present invention is: a prestressed assembly type combined special-shaped column, including angle steel plates, inner angle steel plates, outer angle steel plates, connecting steel plates, high-strength bolts and prestressed cables, the limbs of the angle steel plates, inner angle steel plates and outer angle steel plates A number of bolt holes are arranged on the plate from top to bottom, the angle steel plate leg is the same length as the short leg of the inner and outer angle steel plates, and the inner angle steel plate is as wide as the long leg of the outer angle steel plate;

The inner angle steel plate is spliced with the long limb back of the outer angle steel plate, the angle steel plate is spliced with the short limb back of the inner and outer angle steel plate, the bolt holes are aligned, and fixed with high-strength bolts to form an L-shaped special-shaped column;

The back of the long limb of the inner angle steel plate and the outer angle steel plate are spliced, the back of the long limb of the two inner angle steel plates is spliced, the angle steel plate is spliced with the back of the short limb of the inner and outer angle steel plate, the bolt holes are aligned, and fixed with high-strength bolts to form a T-shaped special-shaped column;

The backs of the long limbs of the four inner angle steel plates are spliced, the angle steel plates are spliced with the backs of the short limbs of the inner angle steel plates, the bolt holes are aligned, and fixed with high-strength bolts to form a cross-shaped special-shaped column;

The edges and intersections of the limbs of the special-shaped columns are spliced to form small rectangular columns, each of which is symmetrically provided with 4 prestressed cables, and the top and bottom of the columns are provided with connecting steel plates that can fix both ends of the prestressed cables.

Preferably, the angle steel plate, the inner angle steel plate, and the outer angle steel plate are vertically provided with a square stiffener steel plate at every other section, and there are cable holes in which the prestressed cables can pass through, and are used to restrain the prestressed cables.

At the construction site, the inner angle steel plate and the outer angle steel plate are hoisted upright, the inner angle steel plate and the outer angle steel plate are spliced back to back, the angle steel plate is spliced back to back with the inner and outer angle steel short legs, the bolt holes are aligned, and fixed with high-strength bolts. The stiffeners are then welded, and the spacing of the stiffeners is determined by calculation.

Finally, set the prestressed cable, pass the cable through the stiffener hole, and fix it at the connecting plate at the top of the column and at the bottom of the column.

Beneficial effects of the present invention: (1) It is suitable for industrialized batch production, and the manufacturing difficulty is low. With few accessories, it meets the requirements of L, T, and cross-shaped special-shaped columns, which greatly improves production efficiency;

(2) Meet the requirements of "strong column", the prestressed cable can fully dissipate energy in the earthquake, the ability to resist bending moment is strong, the lateral displacement of the column top is small, and the buckling can be prevented when the vertical force is large;

(3) Adopting the form of steel combined special-shaped columns can realize the equal width of column walls and avoid indoor corner bulges.

Description of drawings

Fig. 1 is the schematic diagram of prestressed assembly type combined L-shaped special-shaped column of the present invention;

Fig. 2 is the schematic diagram of the prestressed assembled combined T-shaped special-shaped column of the present invention;

Fig. 3 is a schematic diagram of the prestressed assembled combined cross-shaped special-shaped column of the present invention;

Fig. 4 is the structural representation of angle steel plate;

Fig. 5 is the structural representation of inner angle steel plate;

Fig. 6 is a structural schematic diagram of an outer angle steel plate;

Fig. 7 is the structural representation of angle steel plate, stiffener, prestressed cable combination;

Fig. 8 is a structural schematic diagram of the combination of inner angle steel plates, stiffeners, and prestressed cables;

Fig. 9 is the structural representation of outer steel plate, stiffener, prestressed cable combination;

Figure 10 is a schematic diagram of the stiffener structure.

In the figure: 1: Angle steel plate, 2: Inner angle steel plate, 4: Connecting steel plate, 5: Prestressed cable, 6: Stiffening rib steel plate, 7: Bolt hole, 8: Cable hole.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-3, a prestressed assembled composite special-shaped column, the column includes steel plates, high-strength bolts and prestressed cables 5; steel plates include four types: angle steel plate 1, inner angle steel plate 2, outer angle steel plate, and stiffener steel plate 4. A number of bolt holes 7 are arranged on the three kinds of steel plate limb plates from top to bottom, as shown in Fig. 4-6. The angle steel plate limbs are as long as the short limbs of the inner and outer angle steel plates, and the inner angle steel plates are as wide as the long limbs of the outer angle steel plates. At the same time, a stiffener steel plate 4 is provided, in which there is a cable hole 8 for the prestressed cable 5 to pass through, as shown in Figure 7-9. Steel plate inner angle welds a stiffening rib steel plate 4 on the steel plate at intervals from top to bottom, and a connecting steel plate 4 is provided at the top and bottom of the column, which can fix the two ends of the prestressed cable 5 .

At the construction site, the inner angle steel plate and the outer angle steel plate are hoisted upright, the inner angle steel plate and the outer angle steel plate are spliced back to back, the angle steel plate is spliced back to back with the inner and outer angle steel short legs, the bolt holes are aligned, and fixed with high-strength bolts. Then weld the stiffeners, as shown in Figure 10, the spacing of the stiffeners is determined by calculation.

Finally, set the prestressed cable, pass the cable through the stiffener hole, and fix it at the connecting plate at the top of the column and at the bottom of the column.

Using the same method, 4 steel pipes are combined, and after pouring concrete, a T-shaped steel pipe concrete combined special-shaped column is formed, as shown in Figure 8. Combine 5 steel pipes and pour concrete to form a cross-shaped concrete-filled steel pipe combined special-shaped column, as shown in Figure 9.

The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, within the scope of the principles and technical ideas of the present invention, various changes, modifications, replacements and deformations to these implementations still fall within the protection scope of the present invention.

Claims (2)

1. a prestressing force assembling combined special-shaped column, it is characterized in that: comprise angle steel steel plate, interior gusset, exterior angle steel plate, junction steel plate, high-strength bolt and prestressed cable, the limb plate of described angle steel steel plate, interior gusset and exterior angle steel plate arranges multiple bolt hole from top to bottom, angle steel steel plate limb and inside and outside gusset manomelia are with long, and interior gusset and the long limb of exterior angle steel plate are with wide;

Described interior gusset and the long limb of exterior angle steel plate are carried on the back and are spliced, and angle steel steel plate and inside and outside gusset manomelia are carried on the back and spliced, and bolt hole aligns, and fixes with high-strength bolt, form L shape hetermorphiscal column;

Described interior gusset and the long limb of exterior angle steel plate are carried on the back and are spliced, the splicing of two interior gusset long limb back ofs the body, and angle steel steel plate and inside and outside gusset manomelia are carried on the back and spliced, and bolt hole aligns, and fixes with high-strength bolt, form T-shaped hetermorphiscal column;

The splicing of four described interior gusset long limb back ofs the body, angle steel steel plate and interior gusset manomelia are carried on the back and are spliced, and bolt hole aligns, and fixes with high-strength bolt, form cross hetermorphiscal column;

Described hetermorphiscal column limb limit, limb point of intersection are by being spliced to form little rectangular column, and each little rectangular column is symmetrical arranged 4 prestressed cables, is provided with the junction steel plate can fixing prestressed cable two ends at the bottom of capital post.

2. a kind of prestressing force assembling combined special-shaped column according to claim 1, it is characterized in that: described gusset, interior gusset, exterior angle steel plate vertically arrange one piece of square stiffening rib steel plate every one section, stiffening rib steel plate is provided with the rope hole can passed for prestressed cable.