CN201546455U - Novel masonry structure transfer beam - Google Patents

Novel masonry structure transfer beam Download PDF

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Publication number
CN201546455U
CN201546455U CN2008201549355U CN200820154935U CN201546455U CN 201546455 U CN201546455 U CN 201546455U CN 2008201549355 U CN2008201549355 U CN 2008201549355U CN 200820154935 U CN200820154935 U CN 200820154935U CN 201546455 U CN201546455 U CN 201546455U
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CN
China
Prior art keywords
steel
channel
bearing
conversion
masonry
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008201549355U
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Chinese (zh)
Inventor
张坦贤
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SHANGHAI TONGHUA REINFORCEMENT PROJECT CO Ltd
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SHANGHAI TONGHUA REINFORCEMENT PROJECT CO Ltd
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Priority to CN2008201549355U priority Critical patent/CN201546455U/en
Application granted granted Critical
Publication of CN201546455U publication Critical patent/CN201546455U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a novel masonry structure transfer beam which comprises a bearing wall body at the bottom edge of a floor slab, channel steels and a steel plate, grouting materials, pull bolts and the like, wherein two channel steels which are tightened through bolts penetrating through the wall body are distributed on two sides of the bearing wall body at the bottom edge of the floor slab, web plates of the two channel steels are arranged close to the wall, the channel steels whose lateral faces of two concave surfaces are welded with the steel plate are fully filled with the grouting materials, the steel plate is welded at the bottoms of the two channel steels after the bearing wall body on the lower portions of the channel steels is removed, the formed novel transfer beam replaces the original bearing wall body to bear the load of floors on the upper portion and the wall body, and the building using space is greatly expanded. Compared with traditional masonry structure transfer beams, the novel masonry structure transfer beam has the advantages of lowering the headroom of buildings, the node treatment is convenient and feasible, the construction is convenient, the working period is short, the appearance of the building is protected, and the like.

Description

A kind of novel masonry structure conversion beam
One, technical field
The utility model relates to building engineering field, and particularly the field is transformed in structural strengthening, is applied to the masonry structure strengthening and rebuilding engineering.
Two, background technology
Because the change of function of use, in masonry structure, usually need bearing wall is removed, and make force transfer system change, the Shanghai food market nearly 1,500 square metres as area, be by the masonry structure residence ground floors, what reconstruction formed behind all interior wall complete removals except that exterior wall.This just need be provided with beam and bear and transmit all loads that original wall body is born, and is commonly called masonry structure conversion beam technology.The masonry structure conversion beam is a technology that risk is very high, in the work progress and in the use of construction after finishing, produces the crack even the case of collapsing happens occasionally, so the safety of masonry structure conversion beam and reliability are extremely important.
Traditional masonry structure conversion beam is respectively to do a reinforced concrete beam in both sides, body of wall top, the two drawknot is got up again, thereby forms the beam that can bear and transmit load.But this beam exist following obviously and the drawback that can't eliminate:
1, excessive deck-molding influences usage space." seismic design provision in building code " 7.5.4 bar regulation: the steel concrete bressummer in under(-)chassis-seismic structural wall, earthquake resistant wall house, its depth of section should be less than 1/10 of spans.Therefore, traditional masonry structure conversion beam, the deck-molding after it is installed must have certain height, for the big slightly allowable ratio of height to sectional thickness of masonry wall or column of span, deck-molding can be very big, as the allowable ratio of height to sectional thickness of masonry wall or column of span 8m, deck-molding should reach more than the 800mm, and this will produce serious influence to the use headroom in house.
2, difficulty of construction is big, and is long in time limit.Traditional masonry structure conversion beam need be fixed on the body of wall both sides with two reinforced concrete beams then at coping assembling reinforcement again, concreting, forms new spandrel girder.In its work progress, construct at body of wall and floor joint, top, work progresss such as its template support, reinforcing bar binding, casting and compacting of concrete all are very complicated; In addition, the method relates to concrete building, and is therefore long in time limit, and stabilization works generally all requires than the casual labourer phase, so this method difficulty in practical operation is very big.
3, node processing difficulty.The masonry structure wall changes after the beam, in beam and brick wall or constructional column intersection, damaged by pressure for fear of wall or constructional column, the steel concrete beam pad need be set, and the length of beam pad generally should be taken as 3 times of the beam section width, the big or bigger conversion beam of load-bearing for span like this, the length of its beam pad also is very big.But because the restriction of former masonry structure door and window hole present situation, the cushion block that make length like this is impossible, and therefore, the processing of node is difficulty very.
4, influence outward appearance.Traditional conversion beam is to form at the brick wall that impales therebetween with two reinforced concrete beams, beam after the reinforcing not only has suitable height, also to fix one section brick wall because of between two concrete beam, the width of whole conversion beam also is bigger, simultaneously do cushion block again at the node place, therefore newly-built member can protrude building surface, influences architectural appearance.
Three, summary of the invention
The purpose of this utility model is to disclose a kind of novel masonry structure conversion beam that is safe, practical, that can overcome traditional masonry structure conversion beam drawback.
For realizing above purpose, the utility model is by following realization:
1, a kind of novel masonry structure conversion beam, comprise bearing wall, channel-section steel and steel plate, grouting material, the split bolt on floor base etc., both sides at floor base bearing wall, arrange two channel-section steels with the bolt tension of passing body of wall, two outsides are sealed up and are filled the grouting material in the channel-section steel behind the steel plate, at two channel-section steels bottom welding steel, the novel conversion beam of formation replaces former load-bearing moisture in the soil body to bear upper floor and body of wall load behind the dismounting channel-section steel bottom load-bearing moisture in the soil body.
2, the bearing wall on floor base, the height that the top body of wall of floor base bearing wall keeps is with the channel-section steel height, the body of wall that keeps and as the ingredient of conversion beam, the bearing wall of channel-section steel bottom is removed, and the upper load that former bearing wall is born is born by novel conversion beam.
3, channel-section steel and steel plate, the channel-section steel height determines that by the upper floor load channel-section steel length adds the bearing length that wall is gone at two ends for body of wall length, two channel-section steel web wall covering fabrics are put, the side welding steel of two concave surfaces, steel plate height are with the channel-section steel height, and thick is 6 millimeters, length is long for wall, two channel-section steel bottom surfaces treat that the bottom load bearing wall removes the back welding steel, and steel plate is wide, and to add the two channel-section steel wings wide for wall thickness, and thick is 6 millimeters, length is long for wall, becomes the stress frame system of novel conversion beam.
4, grouting material, grouting material intensity C40, microdilatancy grouting material is filled the framework that is made of channel-section steel and steel plate, guarantees the unlikely unstability of skeleton system and stressed jointly.
5, split bolt, 16 millimeters of split bolt diameters, I level steel, it is thick that stressed length is that wall thickness adds both sides channel-section steel web, and blossom type arranges, passes body of wall and the both sides channel-section steel is tightly socketed forms common stressed novel conversion beam system.
Compare with traditional masonry structure conversion beam, the utlity model has following advantage:
1, the headroom of reduction building is little.Adopt the utility model, beam body stress performance is very good, and through calculating, test and practice test, span is less than the beam of 8m, and deck-molding can be reduced in the 400mm, and traditional relatively conversion beam has increased architectural space greatly.In addition, the utility model degree can well be realized the function of use of building also much smaller than the conventional method of using reinforced concrete beam.
2, node processing is simple and easy to do.At the node place that conversion beam and wall or constructional column intersect, can adopt the both sides corner respectively with an angle steel, outside metope adopts the method for a block plate, with split bolt angle steel, steel plate and body of wall (or constructional column) closely is connected, and also conversion beam and body of wall is connected together firmly simultaneously.With respect to traditional needs the reinforcement means of beam pad is set, this technology has reduced the complexity of node processing, has also reduced the engineering quantity of node section.
3, construction is convenient, and the duration is short.Work progress of the present utility model only relate to channel-section steel or and stickup, the installation of split bolt and the work progresss such as welding of steel plate of steel plate, and these work progresss are realized than being easier on the work plane at body of wall top, with respect to traditional way that needs assembling reinforcement, formwork, concreting, its easy degree is unquestionable.Moreover whole reinforcing process does not need a large amount of concrete construction technology intermittent times, so this technology also can better satisfy the time sex-limited requirement of stabilization works.
4, protect architectural appearance to greatest extent.Still be the bigger body of wall of span no matter for the less body of wall of span; its cross section is all much smaller than conventional method after being converted into beam; and the amount that is not outstanding building surface of the beam body or the structure at node place or outstanding building surface is much smaller than traditional method; can both protect the outward appearance of building not to be subjected to greatest extent or few influenced, and the key that the numerous just protective buildings of this prerequisite can successful strengthening reconstruction!
Four, description of drawings
Fig. 1 is the working drawing of novel conversion beam
Among the figure: 1, original structure top body of wall; 2, channel-section steel; 3, steel plate; 4, split bolt; 5, grouting material; 6, end steel plate.
Five, the specific embodiment
Below in conjunction with accompanying drawing and example the utility model is described further:
In working drawing shown in Figure 1, two blocks of channel-section steels 2 are pasted in 1 both sides, top at original body of wall, the channel-section steel concave surface is outside, use split bolt 4 with channel-section steel 2 and body of wall 1 firm drawknot again, welding two block plates 3 on channel-section steel 2 are sealed concave surface then, and at the top reserving hole, inject grouting material 5, treat to connect a block plate 6 at the beam back welding again after the bottom bearing wall is removed, form whole novel conversion beam.

Claims (5)

1. novel masonry structure conversion beam, comprise bearing wall, channel-section steel and steel plate, grouting material, the split bolt on floor base etc., it is characterized in that: the both sides of floor base bearing wall, arrange two channel-section steels with the bolt tension of passing body of wall, fill the grouting material in the channel-section steel, two channel-section steels bottom welding steel.
2. a kind of novel masonry structure conversion beam according to claim 1, it is characterized in that: the height that the top body of wall of floor base bearing wall keeps is with the channel-section steel height, the body of wall that keeps and as the ingredient of conversion beam, the bearing wall of channel-section steel bottom is removed.
3. a kind of novel masonry structure conversion beam according to claim 1, it is characterized in that: the channel-section steel height determines that by the upper floor load channel-section steel length adds the bearing length that wall is gone at two ends for body of wall length, and two channel-section steel web wall covering fabrics are put, the side welding steel of two concave surfaces, the steel plate height is with the channel-section steel height, and thick is 6 millimeters, and length is long for wall, two channel-section steel bottom surface welding steels, steel plate is wide, and to add the two channel-section steel wings wide for wall thickness, and thick is 6 millimeters, long for wall long.
4. a kind of novel masonry structure conversion beam according to claim 1 is characterized in that: grouting material intensity C40, microdilatancy grouting material is filled the framework that is made of channel-section steel and steel plate.
5. a kind of novel masonry structure conversion beam according to claim 1 is characterized in that: 16 millimeters of split bolt diameters, and I level steel, it is thick that stressed length is that wall thickness adds both sides channel-section steel web, and blossom type is arranged, is passed body of wall the both sides channel-section steel is socketed.
CN2008201549355U 2008-11-06 2008-11-06 Novel masonry structure transfer beam Expired - Fee Related CN201546455U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008201549355U CN201546455U (en) 2008-11-06 2008-11-06 Novel masonry structure transfer beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008201549355U CN201546455U (en) 2008-11-06 2008-11-06 Novel masonry structure transfer beam

Publications (1)

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CN201546455U true CN201546455U (en) 2010-08-11

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Application Number Title Priority Date Filing Date
CN2008201549355U Expired - Fee Related CN201546455U (en) 2008-11-06 2008-11-06 Novel masonry structure transfer beam

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863292A (en) * 2016-04-24 2016-08-17 江苏省华建建设股份有限公司 Clamped beam device used for masonry structure wall backward-formed hole and installation method of clamped beam device
CN110748193A (en) * 2019-10-22 2020-02-04 武汉华科永信建筑工程有限公司 Construction process for chiseling bearing wall

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863292A (en) * 2016-04-24 2016-08-17 江苏省华建建设股份有限公司 Clamped beam device used for masonry structure wall backward-formed hole and installation method of clamped beam device
CN105863292B (en) * 2016-04-24 2018-05-18 江苏省华建建设股份有限公司 A kind of clamping boom device and its installation method for punching after Masonry Wall
CN110748193A (en) * 2019-10-22 2020-02-04 武汉华科永信建筑工程有限公司 Construction process for chiseling bearing wall

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100811

Termination date: 20161106

CF01 Termination of patent right due to non-payment of annual fee