CN101839074B - Steel frame reinforced column and reinforcing method thereof - Google Patents

Steel frame reinforced column and reinforcing method thereof Download PDF

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Publication number
CN101839074B
CN101839074B CN2010102057932A CN201010205793A CN101839074B CN 101839074 B CN101839074 B CN 101839074B CN 2010102057932 A CN2010102057932 A CN 2010102057932A CN 201010205793 A CN201010205793 A CN 201010205793A CN 101839074 B CN101839074 B CN 101839074B
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China
Prior art keywords
steel
steel frame
frame post
strengthening
plate
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CN2010102057932A
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Chinese (zh)
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CN101839074A (en
Inventor
翟雷
卢百华
荣军成
安凤杰
杨凯明
胡大川
张福强
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中国建筑第二工程局有限公司
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Priority to CN2010102057932A priority Critical patent/CN101839074B/en
Publication of CN101839074A publication Critical patent/CN101839074A/en
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Publication of CN101839074B publication Critical patent/CN101839074B/en

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Abstract

The invention relates to a steel frame reinforced column and a reinforcing method thereof. The steel frame reinforced column is characterized in that sealing reinforcing steel plates are welded between two flanges at two sides of an H-shaped steel frame column along the overall length of the column, are arranged in pair at two side openings of the H-shaped steel frame column and are welded with two flanges at the opening of the H-shaped steel frame column, and two sealing reinforcing steel plates adjacent up and down are mutually welded. In the invention, the reinforcing steel plates are prefabricated into parts in advance, are directly hoisted to the position during construction, pass through the steel column in over length along the direction of a weak shaft of the H-shaped steel frame column and are welded in pair, thereby enabling the structure stress of the steel reinforced column to be more reasonable and the structural bearing of an original building to be enlarged and satisfying the structural bearing stress requirement. By adopting the construction method of the invention, the original structure can be used for reinforcing the frame steel column of the original steel structure without being disassembled, thereby not influencing the normal work in the original building. All the reinforcing steel plates can be precast in factories, thereby not only shortening the time limit for a project and reducing the construction cost but also ensuring project quality and satisfying the requirement of building extension.

Description

Steel frame reinforced column and reinforcement means thereof
Technical field
The present invention relates to a kind of ruggedized construction and reinforced construction method of construction steel frame post.
Background technology
Along with the fast development of large-span space structure building, the designed structural span of architect is also increasing, and moulding is more and more novel, unique, and structure connects and becomes increasingly complex.Original steel structure member is because historical reasons and the passing of time cause local damage, corrosion easily, or because member section is little, bearing capacity is low, can't satisfy the requirement of workmanship.Existing reinforcing mode can't be in the existing building normal office work, and under the situation about not unloading the original structure Steel Frame Column is transformed, reinforced.Existing structural strengthening mode complex procedures, circulation material have high input, long construction period, can not adapt to the requirement of modern architecture construction.
Summary of the invention
The purpose of this invention is to provide a kind of steel frame reinforced column and reinforcement means thereof, solve existing steel work reinforcement means and need unload construction, working procedure complexity, long technical problem of cycle.
For achieving the above object, the present invention adopts following technical scheme: this steel frame reinforced column, comprise H structural steel frame post, be welded with along the post total length between two wing plates of described H structural steel frame post both sides and seal strengthening steel slab, seal strengthening steel slab in the both sides of H structural steel frame post open-mouth group to being provided with, and with the welding of two wing plates of H structural steel frame post open-mouth, neighbouring two seal strengthening steel slab is welded to each other.
The described strengthening steel slab that seals is slotted in the intersection with steel-frame beam, and steel-frame beam embeds in the above-mentioned groove.
The welding of strengthening steel slab base and steel column base plate is sealed at the suspension column place of described H structural steel frame post, and each vertical welding of web two sides of H structural steel frame post is connected to a web and reinforces the strength plate, and web is reinforced the base and the welding of steel column base plate of strength plate; Seal strengthening steel slab and reinforce the welding of strength plate with web simultaneously, each vertical welding of two wing plates middle part of H structural steel frame post is connected to a wing plate and reinforces the strength plate, and wing plate is reinforced the base and the welding of steel column base plate of strength plate.
The variable cross-section place of described H structural steel frame post also is welded with one deck steel liner plate sealing between strengthening steel slab and the H structural steel frame post.
The described weld seam that seals between strengthening steel slab and the steel column base plate is butt weld; The weld seam that web is reinforced between strength plate, wing plate reinforcing strength plate and the steel column base plate is a penetration T type weld seam; The weld seam that seals between strengthening steel slab, web reinforcing strength plate, wing plate reinforcing strength plate and the H structural steel frame post is the fillet weld seam.
The reinforced construction method of this steel frame reinforced column, construction sequence is as follows: step 1, the fireproof paint of H structural steel frame post is removed and cleaned out.
Step 2 is set up non-bearing operation scaffold around being reinforced H structural steel frame post.
Step 3 puts prefabricated strengthening steel slab lifting in place.
Step 4 is reinforced H structural steel frame post suspension column, and concrete steps are as follows: A, web of each vertical welding is reinforced the strength plate on the web two sides of H structural steel frame post, and web is reinforced the strength plate weld with the steel column base plate.
B, between two wing plates of H structural steel frame post both sides the solder up strengthening steel slab, and will seal strengthening steel slab and web and reinforce the welding of strength plate, will seal strengthening steel slab and steel column base plate and weld.
C, in the middle of two wing plates of H structural steel frame post, respectively weld a wing plate and reinforce the strength plate, and wing plate is reinforced the strength plate weld with the steel column base plate.
Step 5, reinforce H structural steel frame post typical construction, weak direction of principal axis at H structural steel frame post seals strengthening steel slab along the welding of steel column total length, organizes the right strengthening steel slab that seals and is symmetrically welded in the both sides open-mouth of H structural steel frame post, and the neighbouring strengthening steel slab that seals is welded to each other.
In H structural steel frame post and steel-frame beam intersection, will seal the web thickness fluting of strengthening steel slab in advance according to steel-frame beam, steel-frame beam is embedded in the above-mentioned groove, will seal the two wing plates welding of strengthening steel slab and H structural steel frame post open-mouth again.
The variable cross-section place of described H structural steel frame post also is welded with one deck steel liner plate sealing between strengthening steel slab and the H structural steel frame post.
When the typical construction of described H structural steel frame post was reinforced, the longitudinal angle weld seam between solder up strengthening steel slab and the H structural steel frame post was waited to be reduced to after the environment temperature in the neighbouring horizontal butt weld of sealing strengthening steel slab of welding earlier again.
Described web reinforces the strength plate, seal strengthening steel slab and wing plate is reinforced the strength plate when weld with H structural steel frame post, welds longitudinal weld longitudinal seam after all welding transverse weld earlier.
Beneficial effect of the present invention is as follows: the present invention is according to easy construction, rational principle, the strengthening steel slab that the steel framework reinforced column is used is prefabricated into part earlier, directly lift during construction and put in place, direction of principal axis connects the welding of steel column total length a little less than H structural steel frame post, can make the structure stress of steel reinforced column more reasonable, the structural bearing capacity of original building is strengthened, satisfy the structural bearing force request.Adopt job practices of the present invention, original structure need not to unload and can carry out strengthening construction to the framework steel column of former steel work, does not influence the normal office work of existing building.All strengthening steel slabs all can adopt prefabrication, not only can the reductions of erection time, reduce construction cost, and also guarantee workmanship, and can satisfy the needs of building enlarging.
Description of drawings
The present invention is further detailed explanation below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram that H structural steel frame post suspension column is reinforced.
Fig. 2 is the schematic diagram that H structural steel frame post typical construction is reinforced.
Fig. 3 is the schematic diagram that H structural steel frame post and steel-frame beam node place reinforce.
Fig. 4 is the schematic diagram that H structural steel frame post variable cross-section place reinforces.
Fig. 5 is the neighbouring schematic diagram that seals butt weld place between the strengthening steel slab.
Fig. 6 is the schematic diagram that web is reinforced penetration T type commissure between strength plate, wing plate reinforcing strength plate and the steel column base plate.
Fig. 7 is the schematic diagram that seals penetration T type commissure between strengthening steel slab and the steel column base plate.
Fig. 8 is the schematic diagram that seals strengthening steel slab and H structural steel frame post longitudinal seam place.
Reference numeral: 1-H structural steel frame post, 1.1-web, 1.2-wing plate, 2-seal strengthening steel slab, 3-steel-frame beam, 4-steel liner plate, 5-web reinforcing strength plate, 6-wing plate reinforcing strength plate, 7-steel column base plate.
The specific embodiment
Embodiment is referring to shown in Figure 2, this steel frame reinforced column, comprise H structural steel frame post 1, be welded with along the post total length between two wing plates 1.2 of described H structural steel frame post 1 both sides and seal strengthening steel slab 2, seal strengthening steel slab in the both sides of H structural steel frame post open-mouth group to being provided with, and with two wing plates 1.2 welding of H structural steel frame post open-mouth, neighbouring two seal strengthening steel slab 2 is welded to each other.
Referring to shown in Figure 3, the described strengthening steel slab 2 that seals is slotted in the intersection with steel-frame beam 3, and steel-frame beam embeds in the above-mentioned groove.
Referring to shown in Figure 1, strengthening steel slab 2 bases and 7 welding of steel column base plate are sealed by the suspension column place of described H structural steel frame post 1, and each vertical welding of web 1.1 two sides of H structural steel frame post is connected to a web and reinforces strength plate 5, and web is reinforced the base and 7 welding of steel column base plate of strength plate; Seal strengthening steel slab 2 and reinforce 5 welding of strength plate with web simultaneously, each vertical welding of two wing plates, 1.2 middle parts of H structural steel frame post is connected to a wing plate and reinforces strength plate 6, and wing plate is reinforced the base and 7 welding of steel column base plate of strength plate.
Referring to shown in Figure 4, the variable cross-section place of described H structural steel frame post 1 also is welded with one deck steel liner plate 4 sealing between strengthening steel slab 2 and the H structural steel frame post 1.
Referring to shown in Figure 5, the two adjacent weld seams that seal between the strengthening steel slab 2 are butt weld up and down.
Referring to shown in Figure 6, the weld seam that web is reinforced between strength plate 5, wing plate reinforcing strength plate 6 and the steel column base plate 7 is a penetration T type weld seam.
Referring to shown in Figure 7, the weld seam that seals between strengthening steel slab 2 and the steel column base plate 7 is a penetration T type weld seam.
Referring to shown in Figure 8, the weld seam that seals between strengthening steel slab 2, web reinforcing strength plate 5, wing plate reinforcing strength plate 6 and the H structural steel frame post 1 is the fillet weld seam.
The reinforced construction method of this steel frame reinforced column, step is as follows: step 1, the fireproof paint of H structural steel frame post 1 is removed and cleaned out.
Step 2 is set up non-bearing operation scaffold around being reinforced H structural steel frame post 1.
Step 3 puts prefabricated strengthening steel slab lifting in place; Before the strengthening steel slab vertical transport, all welding hanger on the strengthening steel slab earlier, in the strengthening steel slab vertical transport after specified altitude assignment, with the cucurbit that hangs in advance strengthening steel slab is caught, make the strengthening steel slab center of gravity progressively carry out the transition on the cucurbit by tightening up cucurbit, then hoist engine pine hook is in place with strengthening steel slab with cucurbit.
Step 4 is reinforced H structural steel frame post suspension column, and concrete steps are as follows: A, web of each vertical welding is reinforced strength plate 5 on web 1.1 two sides of H structural steel frame post, and web is reinforced strength plate 5 and 7 welding of steel column base plate;
B, between two wing plates of H structural steel frame post both sides solder up strengthening steel slab 2, and will seal strengthening steel slab 2 and reinforce 5 welding of strength plate with web, will seal strengthening steel slab and weld with steel column base plate 7.
C, in the middle of two wing plates 1.2 of H structural steel frame post, respectively weld a wing plate and reinforce strength plate 6, and wing plate is reinforced the strength plate weld with the steel column base plate.
Described web reinforces strength plate 5, seal strengthening steel slab 2 and wing plate is reinforced strength plate 6 when weld with H structural steel frame post, welds longitudinal weld longitudinal seam after all welding transverse weld earlier.
Step 5, reinforce H structural steel frame post typical construction, weak direction of principal axis at H structural steel frame post 1 seals strengthening steel slab 2 along the welding of steel column total length, organizes the right strengthening steel slab that seals and is symmetrically welded in the both sides open-mouth of H structural steel frame post, and the neighbouring strengthening steel slab that seals is welded to each other; The longitudinal angle weld seam between solder up strengthening steel slab 2 and the H structural steel frame post 1 is waited to be reduced to after the environment temperature in the neighbouring horizontal butt weld of sealing strengthening steel slab 2 of welding earlier again.
In H structural steel frame post 1 and steel-frame beam 3 intersections, will seal the web thickness fluting of strengthening steel slab 2 in advance according to steel-frame beam, steel-frame beam is embedded in the above-mentioned groove, will seal two wing plates, 1.2 welding of strengthening steel slab and H structural steel frame post open-mouth again.
At the variable cross-section place of H structural steel frame post 1, also be welded with one deck steel liner plate 4 sealing between strengthening steel slab 2 and the H structural steel frame post 1.

Claims (7)

1. steel frame reinforced column, comprise H structural steel frame post (1), it is characterized in that: be welded with along the post total length between two wing plates (1.2) of described H structural steel frame post (1) both sides and seal strengthening steel slab (2), seal strengthening steel slab in the both sides of H structural steel frame post open-mouth group to being provided with, and with the welding of two wing plates (1.2) of H structural steel frame post open-mouth, neighbouring two seal strengthening steel slab (2) is welded to each other;
The described strengthening steel slab (2) that seals is slotted in the intersection with steel-frame beam (3), and steel-frame beam embeds in the above-mentioned groove;
The suspension column place of described H structural steel frame post (1), seal the welding of strengthening steel slab (2) base and steel column base plate (7), each vertical welding of web (1.1) two sides of H structural steel frame post is connected to a web and reinforces strength plate (5), and web is reinforced the base and steel column base plate (7) welding of strength plate; Seal strengthening steel slab (2) and reinforce strength plate (5) welding with web simultaneously, each vertical welding of two wing plates (1.2) middle part of H structural steel frame post is connected to a wing plate and reinforces strength plate (6), and wing plate is reinforced the base and steel column base plate (7) welding of strength plate.
2. steel frame reinforced column according to claim 1 is characterized in that: the variable cross-section place of described H structural steel frame post (1) also is welded with one deck steel liner plate (4) sealing between strengthening steel slab (2) and the H structural steel frame post (1).
3. steel frame reinforced column according to claim 1 is characterized in that: described neighbouring two weld seams that seal between the strengthening steel slab (2) are butt weld; The weld seam that seals between strengthening steel slab (2), web reinforcing strength plate (5), wing plate reinforcing strength plate (6) and the steel column base plate (7) is a penetration T type weld seam; The weld seam that seals between strengthening steel slab (2), web reinforcing strength plate (5), wing plate reinforcing strength plate (6) and the H structural steel frame post (1) is the fillet weld seam.
4. reinforcement means as any described steel frame reinforced column of claim 1-3 is characterized in that construction sequence is as follows:
Step 1 is removed the fireproof paint of H structural steel frame post (1) and clean out;
Step 2 is set up non-bearing operation scaffold on every side being reinforced H structural steel frame post (1);
Step 3 puts prefabricated strengthening steel slab lifting in place;
Step 4 is reinforced H structural steel frame post suspension column, and concrete steps are as follows:
A, web of each vertical welding is reinforced strength plate (5) on web (1.1) two sides of H structural steel frame post, and web is reinforced strength plate (5) and steel column base plate (7) welding;
B, between two wing plates of H structural steel frame post both sides solder up strengthening steel slab (2), and will seal strengthening steel slab (2) and web and reinforce strength plate (5) welding, will seal strengthening steel slab and steel column base plate (7) and weld;
C, in the middle of two wing plates (1.2) of H structural steel frame post, respectively weld a wing plate and reinforce strength plate (6), and wing plate is reinforced the strength plate weld with the steel column base plate;
Step 5, reinforce H structural steel frame post typical construction, weak direction of principal axis at H structural steel frame post (1) seals strengthening steel slab (2) along the welding of steel column total length, organizes the right strengthening steel slab that seals and is symmetrically welded in the both sides open-mouth of H structural steel frame post, and the neighbouring strengthening steel slab that seals is welded to each other;
In H structural steel frame post (1) and steel-frame beam (3) intersection, to seal the web thickness fluting of strengthening steel slab (2) in advance according to steel-frame beam, steel-frame beam is embedded in the above-mentioned groove, will seal two wing plates (1.2) welding of strengthening steel slab and H structural steel frame post open-mouth again.
5. the reinforcement means of steel frame reinforced column according to claim 4 is characterized in that: the variable cross-section place of described H structural steel frame post (1) also is welded with one deck steel liner plate (4) sealing between strengthening steel slab (2) and the H structural steel frame post (1).
6. the reinforcement means of steel frame reinforced column according to claim 4, it is characterized in that: when the typical construction of described H structural steel frame post (1) is reinforced, the longitudinal angle weld seam between solder up strengthening steel slab (2) and the H structural steel frame post (1) is waited to be reduced to after the environment temperature in the neighbouring horizontal butt weld of sealing strengthening steel slab (2) of welding earlier again.
7. the reinforcement means of steel frame reinforced column according to claim 4, it is characterized in that: described web reinforces strength plate (5), seal strengthening steel slab (2) and wing plate is reinforced strength plate (6) when weld with H structural steel frame post, welds longitudinal weld longitudinal seam after welding transverse weld all earlier.
CN2010102057932A 2010-06-22 2010-06-22 Steel frame reinforced column and reinforcing method thereof CN101839074B (en)

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