Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide component node reinforcement means in the building, can effectively improve joint cores shear behavior and anti-seismic performance, have easy construction, simple to operate, with low cost, the characteristics of function admirable.
To achieve these goals, the technical solution used in the present invention is:
Component node reinforcement means in the building, plural member intersects at common node, with other member the definition of the component of maximum cross surfaces mutually being arranged is main member 1, other is a secondary member 2, on main member 1, the position of intersecting with each secondary member 2, length direction perpendicular to main member 1, open equally spaced groove, the groove that steel band hoop 3 edges are opened seals around main member 1 then, and the spacing of described groove is identical with steel band hoop spacing, groove width equals or is slightly larger than the width of steel band hoop 3, also can substitute described groove with the hole.
If have two members to intersect, then on the phase cross surface of arbitrary member, perpendicular to the length direction of this member, open equally spaced groove, the groove that steel band hoop 3 edges are opened seals around this member then, the spacing of described groove is identical with steel band hoop spacing, and groove width is slightly larger than the width of steel band hoop 3.
At the secondary member 2 and the corresponding position of slotting, also split an emissions groove mutually.
Described groove is opened on each secondary member 2, the position of intersecting with main member 1.
Steel band hoop 3 by pass in slotting after, adopt pneumatic baling press to install, with packing detain 4 forever seal fixing.After treating that the steel band packing installs formation steel band hoop 3, sulculus is tamped with the grouting material.
Described steel band hoop 3 materials are the steel band that turns blue, stainless steel band, galvanized steel or carbon fiber tape.
Described node is the node of concrete component and concrete component, masonry member, wood members, the perhaps node of masonry member and masonry member, wood members, the perhaps node of wood members and wood members.
The present invention compared with prior art has the following advantages:
(1) consolidation effect is good.
(2) easy construction.
(3) good endurance.
(4) draw materials conveniently, with low cost.
(5) applied range, good in economic efficiency.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further details.
Embodiment one
As shown in Figure 1, one has five members, main member 1 and secondary member 2 intersect at node, main member 1 has four cross surfaces mutually with secondary member 2, main member 1 and secondary member 2 all are concrete component, on the face that main member 1 and secondary member 2 intersect, length direction perpendicular to main member 1, open equally spaced groove, groove width slightly is wider than steel band hoop 3 width, slot thickness is slightly thicker than steel band hoop 3 thickness, and the groove that steel band hoop 3 edges are opened is packed around the pneumatic baling press of main member 1 usefulness then, it is 40% of steel band ultimate tensile strength that the packing elasticity of adjusting given atmospheric pressure value control steel band hoop makes the steel band tension stress, forever seal fixingly with packing button 4, the width of steel band hoop 3 equates that with groove width its material is a stainless steel band, also can adopt carbon fiber tape, the galvanized steel or the steel band that turns blue, its intensity is more than 800MPa, and thickness is 0.5~1.5mm, and present embodiment is selected 1.2mm.
Embodiment two
In the present embodiment, one has five members, main member 1 has four cross surfaces mutually with secondary member 2, main member 1 is the masonry member, secondary member 2 is the masonry member, on the face that main member 1 and secondary member 2 intersect,, open equally spaced groove perpendicular to the length direction of main member 1, groove width slightly is wider than steel band hoop 3 width, slot thickness is slightly thicker than steel band hoop 3 thickness, and the groove that steel band hoop 3 edges are opened is packed around the pneumatic baling press of main member 1 usefulness then, it is 35% of steel band ultimate tensile strength that the packing elasticity of adjusting given atmospheric pressure value control steel band hoop makes the steel band tension stress, forever seal fixingly with packing button 4, the width of steel band hoop 3 equates that with groove width its material is a stainless steel band, also can adopt carbon fiber tape, the galvanized steel or the steel band that turns blue, its intensity is more than 800MPa, and thickness is 0.5~1.5mm, and present embodiment is selected 1.2mm.
Embodiment three
In the present embodiment, one has five members, main member 1 has four cross surfaces mutually with secondary member 2, main member 1 is a wood members, secondary member 2 is a timber compoment, on the face that main member 1 and secondary member 2 intersect,, open equally spaced groove perpendicular to the length direction of main member 1, groove width slightly is wider than steel band hoop 3 width, slot thickness is slightly thicker than steel band hoop 3 thickness, and the groove that steel band hoop 3 edges are opened is packed around the pneumatic baling press of main member 1 usefulness then, it is 25% of steel band ultimate tensile strength that the packing elasticity of adjusting given atmospheric pressure value control steel band hoop makes the steel band tension stress, forever seal fixingly with packing button 4, the width of steel band hoop 3 equates that with groove width its material is a stainless steel band, also can adopt carbon fiber tape, the galvanized steel or the steel band that turns blue, its intensity is more than 800MPa, and thickness is 0.5~1.5mm, and present embodiment is selected 0.9mm.
Embodiment four
In the present embodiment, one has four members, intersect at node, in this case, on the phase cross surface of arbitrary member, length direction perpendicular to this member, open equally spaced groove, groove width slightly is wider than steel band hoop 3 width, and slot thickness is slightly thicker than steel band hoop 3 thickness, then with steel band hoop 3 along the groove of being opened, around the packing of the pneumatic baling press of main member 1 usefulness, it is 20% of steel band ultimate tensile strength that the packing elasticity of adjusting given atmospheric pressure value control steel band hoop makes the steel band tension stress, with packing detain 4 forever seal fixing, the width of steel band hoop 3 equates with groove width, its material is a stainless steel band, also can adopt carbon fiber tape, the galvanized steel or the steel band that turns blue, its intensity is more than 800MPa, thickness is 0.5~1.5mm, and present embodiment is selected 1.2mm.
Among all embodiment, groove can be opened on secondary member, also can all be slotted on main member and secondary member, also can come instead of grooves with aperture simultaneously, aperture can construction easily on the node structure of moulding.
After packing is finished, with mortar or coating aperture or groove are sealed, and then whole node outer brush japanning or coating, can protect the steel band hoop, prevent to get rusty.
The present invention improves beyond the intensity realize increasing force-summing element (encased steel strap) by pneumatic packaging technique, most important part is to rely on the bailing band hoop to concrete in the member, timber or brick, stone material produces very large horizontal restrain prestressing force, make old material (concrete in institute's strenthening member, timber or brick, stone) be subjected to good active lateral constraint, can effectively improve the strength and deformation ability of the member that is tied, and effectively limit or delay (or the timber of concrete in the member, brick, stone) cracking, thereby greatly improve institute's strenthening member deformation performance and energy dissipation capacity, improved the antidetonation and the shear behavior at node place.
Existing all kinds steel band is as the steel band that turns blue, stainless steel band, galvanized steel and carbon fiber tape etc., its ultimate strength all can be up to more than the 900MPa, wherein carbon fiber tape intensity is especially up to more than the 2000Mpa, therefore consolidation effect of the present invention is very good, simultaneously, utilize pneumatic baling press to construct, convenient and easy.Steel band material among the present invention can be chosen according to different needs, and its durability is good.
The present invention is applicable to the joint reinforcing in various material types and various cross sections, draw materials conveniently, with low cost, be applicable to civilian construction, industrial premises, bridge node etc., provide economic, effective, practical reinforcing technique for solving at present a large amount of engineering structures reinforcing reparations, effectively improve the functional performance and the application life of existing engineering structures, the antidetonation that effectively the improves existing engineering structures ability of taking precautions against natural calamities has great social significance.