A kind of construction method for reinforcing steel structure girder or column
Technical field
Patent of the present invention belongs to building engineering field, and in particular to a kind of construction method for reinforcing steel structure girder or column.
Background technology
CN105926974 A disclose a kind of steel construction combination beam increasing existing girder steel bearing capacity, in existing girder steel
The setting pair girder steel of parallel beneath, setting anchorage and at least one gravitation supporting rack between existing girder steel and secondary girder steel, secondary girder steel
One end is fixed, and the other end connects force application apparatus or secondary girder steel is equipped with clamp device, and existing girder steel, secondary girder steel and anchorage securely connect
It connects, the steel construction combination beam for increasing bearing capacity is collectively constituted with clamp device, gravitation supporting rack.Using the steel construction of the invention
Combination beam can carry out field-hardened to existing girder steel under engineering present situation, and method is simple, steel construction combined beam structure letter
It is single, it disclosure satisfy that engineering design and requirement.The combination of steel construction+steel strand wires can improve being held by curved for beam in above-mentioned document
Power is carried, but there are no the technical solutions for being related to steel strand wires and how improving in the structure Torsion bearing capacity in the prior art.
Invention content
A kind of construction method for reinforcing steel structure girder or column is provided the purpose of the present invention is overcoming the deficiencies of existing technologies,
The purpose is to the Torsion bearing capacities in reinforcement/column.
The technical scheme is that:A kind of construction method for reinforcing steel structure girder or column, the beam or column are using basis
Shaped steel, construction procedure include:First, it prepares with lower member:4 U-type groove steel;The basic section steel is by top flange, lower flange, abdomen
Board group at;Second, U-type groove steel is installed:4 U-type groove steel are inserted into respectively in the quadrangle of the top flange of basic section steel, lower flange, U
Type groove steel is fixed along the elongated arrangement of basic section steel, U-type groove steel and basic section steel, be formed between U-type groove steel and the edge of a wing wear it is pre-
The duct of stress rib;Third passes through presstressed reinforcing steel in 4 jiaos of the basic section steel of duct, applies prestressing force.
Further, it is preset with bolt hole between U-type groove steel and the edge of a wing of basic section steel, U-type groove steel and basic section steel
The bolt hole on the edge of a wing is aligned, and the two is fixed by bolt and nut component.
Further, it in the first step, when preparing component, is welded respectively in the left and right sides of the top flange of basic section steel, lower flange
Vertical steel pipe, the both ends outstanding flange of vertical steel pipe are connect, the height of vertical steel pipe is more than the thickness on the edge of a wing, during vertical steel pipe is
It is empty;The spacing of vertical steel pipe is 15-50cm;Second step, when installing U-type groove steel, U-type groove steel is inserted into from the front of basic section steel,
Its two flank side surface for being inserted into the edge of a wing has protrusion, and the part that the edge of a wing is protruded from vertical steel pipe cooperates to positioning U type channel steel
With the mutual alignment on the edge of a wing;There is hole in the upper and lower surface of U-type groove steel part corresponding with vertical steel pipe, passes through bolt and nut component
It is both fixed.
Further, it in second step, installs in U-type groove steel, further includes:Install outer panel and lower outer panel, upper outer panel
It is arranged on the outside of the edge of a wing of 2 U-type groove steel of top flange;Lower outer panel is arranged outside the edge of a wing of 2 U-type groove steel of top flange
Side.
Further, it in second step, installs in U-type groove steel, further includes:Install interior plate and lower interior plate, upper interior plate,
Lower interior plate is separately positioned on one end on the inside of the edge of a wing of the U-type groove steel of top flange, lower flange and between web.
Further, 4 pieces of interior plates are formed with webShape.
Further, it in second step, installs in U-type groove steel, further includes:Left plate and right plate, left plate and right side are installed
Plate is parallel with web, and the U-type groove steel of basic section steel web both sides is connected by left plate with right plate respectively, and upper outer panel is under
Outer panel makes 4 jiaos of U-type groove steel connects to form " mouth " font with left plate with right edge.
Further, the basic section steel is I-steel, and top flange is identical with the structure of lower flange, and the presstressed reinforcing steel uses
Prestress wire, the beam or column are side bar or side column
Using above-mentioned technical proposal, compared with prior art, beneficial effects of the present invention are:1. the edge of a wing of beam/column uses
Knockdown method is formed:That is the mode of basic section steel+channel steel is formed;2. 4 jiaos in shaped steel are arranged presstressed reinforcing steel, Neng Gou
While improving bending resistance/pressure bearing capacity, Torsion bearing capacity is improved;3. the application be using beam, column reverse, U-type groove steel and
Internal prestressing force can form space curve under the action of torque, and presstressed reinforcing steel length can be stretched further, and presstressed reinforcing steel exists
While tension, presstressed reinforcing steel can link together to channel steel active force, channel steel with the basic section steel edge of a wing radially, and then inhibit
Beam/column is grappled;4. the combined type edge of a wing of the present invention facilitates channel steel and the edge of a wing by the way of the external bolt steel pipe of basic section steel
Be located by connecting, the stability both ensured;5. the present invention is applicable not only to newly-built structural steelwork, built work is applied also for
The reinforcing of journey.
Description of the drawings:
Fig. 1:The structure scheme of installation of embodiment one.
Fig. 2:The bolt and nut component of embodiment one and U-type groove steel detail drawing of installation.
Fig. 3:The structure scheme of installation of embodiment three.
Fig. 4:The structure scheme of installation of example IV.
Fig. 5:Steel strand wires deform schematic diagram when being turned round.
Fig. 6:Steel strand wires of the present invention and basic section steel stress diagram.
Specific implementation mode
Embodiment 1:As shown in Figs. 1-2, a kind of construction method for reinforcing steel construction side bar, the beam or column use basic type
Steel, construction procedure are as follows:
First, prepare component:Basic section steel, 4 U-type groove steel 1-1,1-2,1-3,1-4;Basic section steel uses I-steel,
It is made of top flange 2-1, lower flange 2-2, web 3, top flange 2-1 is identical with the structure of lower flange 2-2;
Second, 4 U-type groove steel are inserted into the top flange of basic section steel, the quadrangle of lower flange, U-type groove steel and basic type
Bolt hole is preset between the edge of a wing of steel, U-type groove steel is aligned with the bolt hole on the edge of a wing of basic section steel, and the two passes through bolt spiral shell
Female component 1-5 is fixed;The duct 4 for wearing presstressed reinforcing steel is formed between U-type groove steel and the edge of a wing;
Third passes through presstressed reinforcing steel in 4 jiaos of the basic section steel of duct, applies prestressing force;The presstressed reinforcing steel
Using prestress wire;Prestress wire is anchored on the column of beam both sides.
Embodiment 2:A kind of construction method for reinforcing steel construction side column, difference from example 1 is that:The base
Plinth shaped steel is column;Prestress wire is anchored at the upper/lower terminal of column.
Embodiment 3:As shown in figure 3, a kind of construction method for reinforcing steel structure girder or column, the beam or column use basic type
Steel, construction procedure are as follows:
First, prepare component:Basic section steel, 4 U-type groove steel 1-1,1-2,1-3,1-4;Basic section steel uses I-steel,
It is made of top flange 2-1, lower flange 2-2, web 3, top flange 2-1 is identical with the structure of lower flange 2-2;In the upper of basic section steel
Vertical steel pipe 1-7, the both ends outstanding flange of vertical steel pipe, the height of vertical steel pipe are respectively welded at left and right sides of the edge of a wing, lower flange
For degree more than the thickness on the edge of a wing, vertical steel pipe is hollow;The spacing of vertical steel pipe is 15-50cm;
Second, 4 U-type groove steel are inserted into the top flange of basic section steel, the quadrangle of lower flange, U-type groove steel and basic type
Bolt hole is preset between the edge of a wing of steel, U-type groove steel is aligned with the bolt hole on the edge of a wing of basic section steel, and the two passes through bolt spiral shell
Female component 1-6 is fixed;The duct 4 for wearing presstressed reinforcing steel is formed between U-type groove steel and the edge of a wing;
U-type groove steel is inserted into from the front of basic section steel, and two flank side surfaces for being inserted into the edge of a wing have protrusion, is protruded with vertical steel pipe
The mutual alignment on positioning U type channel steel and the edge of a wing is cooperated in the part on the edge of a wing;The upper and lower surface and vertical steel of U-type groove steel
Both managing corresponding part has hole, fixed by bolt and nut component;
Upper and lower outer panel 2-1-2, upper and lower interior plate 2-1-3 are welded, 2 U-type grooves in top flange are arranged in upper outer panel
On the outside of the edge of a wing of steel;Lower outer panel is arranged on the outside of the edge of a wing of 2 U-type groove steel of lower flange;Upper interior plate, lower interior plate difference
One end on the inside of the edge of a wing of the U-type groove steel of top flange, lower flange is set and between web.
Third passes through presstressed reinforcing steel in 4 jiaos of the basic section steel of duct, applies prestressing force;The presstressed reinforcing steel
Using prestress wire.
Embodiment 4:With embodiment 3 the difference is that:Pass through the left plate parallel with web and right side in U-type groove steel
Plate 2-1-4 connections;So that 4 jiaos of U-type groove steel connects to form " mouth " font, the Torsion bearing capacity of beam/column is further increased.
Embodiment 5:With embodiment 3 the difference is that:Upper and lower interior plate is connect by the way of diagonal brace with web, and 4
Block interior plate is formed with webShape can be more conducive to the globality of U-type groove steel and basic section steel, be conducive to antitorque hold
Carry the raising of power.
Reinforcement principle is illustrated from amechanical angle below, first, U-type groove steel and upper and lower outer panel and left and right side
The square shape that plate is formed, square shape can improve Torsion bearing capacity, this design from mechanics it will be understood that be the equal of
A torque member is increased again on I-steel, also, U-type groove steel is arranged on the quadrangle of basic section steel, antitorque shape herein
Become maximum, thus setting " square shape " can improve Torsion bearing capacity to greatest extent here;Second, for prestress steel twist
For line, if its longitudinal direction is not arranged in U-type groove steel, effect is only the length elongation of steel strand wires, is between steel strand wires
Straight line;But be disposed in U-type groove steel, under the action of torque, steel strand wires reverse together with U-type groove steel, and do not set
The case where setting U-type groove steel is different, and steel strand wires at this time are curve, for prestress wire, when it is become bent by external force
When line, radial load is necessarily will produce, and its size is related with deformation extent.As shown in fig. 6, above-mentioned radial load acts on basis
Shaped steel F1, F2, F3, F4, F1-F4 improve Torsion bearing capacity as shear force.
The preferred embodiment of present aspect has already been described in detail above, it is understood that being said having read the above-mentioned of the present invention
After awarding content, those skilled in the art can make various modifications or changes to the present invention.Such equivalent forms equally fall into this Shen
It please be in the protection domain of the appended claims.