CN102943572B - Single-floor masonry residential building steel-frame canopy guard structure and construction method thereof - Google Patents

Single-floor masonry residential building steel-frame canopy guard structure and construction method thereof Download PDF

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Publication number
CN102943572B
CN102943572B CN201210468623.2A CN201210468623A CN102943572B CN 102943572 B CN102943572 B CN 102943572B CN 201210468623 A CN201210468623 A CN 201210468623A CN 102943572 B CN102943572 B CN 102943572B
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China
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additional
steel
girder steel
former
horizontal girder
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CN201210468623.2A
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Chinese (zh)
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CN102943572A (en
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董有
鞠树森
谢建明
甄进平
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北京筑福国际工程技术有限责任公司
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Abstract

The invention relates to a single-floor masonry residential building steel-frame canopy guard structure and a construction method thereof. A single-floor masonry residential building is provided with an original roof truss, the bottom surface of the original roof truss is provided with a reinforced steel frame, the reinforced steel frame consists of at least two external transverse steel beams, two external longitudinal steel beams, four external steel columns and an external foundation, the external longitudinal steel beams are arranged on the inner side of an original longitudinal wall, the external transverse steel beams are arranged on the outer side of an original gable wall, the end part of each external longitudinal steel beam is lapped on and fixedly connected with the external transverse steel beam to collectively form a contour which is identical to the plane shape of the original structure, the external steel columns are closely attached to the original gable wall or the original longitudinal wall, the top end of the external steel column is supported on the end part of the external transverse steel beam, and the bottom end of the external steel column is supported on the external foundation. Due to the adoption of the single-floor masonry residential building steel-frame canopy guard structure, under the situation that the application function of the original structure is not influenced, the anti-seismic performance is improved, good economic benefit and social benefit can be realized, the single-floor masonry residential building steel-frame canopy guard structure can be widely used for reinforcing the masonry residential building structure and particularly for reinforcing a stone house or a brick house which does not have the supporting column.

Description

Individual layer masonry residence steelframe protects roof construction and construction method thereof
Technical field
The present invention relates to a kind of old building ruggedized construction and construction method thereof of building field, particularly a kind of individual layer masonry residence ruggedized construction and construction method thereof.
Background technology
On September 7th, 2012, there are 5.7 grades of earthquakes in Yiliang, Yunnan, and between house collapse more than 30,000, the direct economic loss that disaster causes is about 37 hundred million yuans, and current disaster makes the anti-seismic performance of Chinese countryside local-style dwelling houses weakness expose incisively and vividly.Yiliang earthquake, makes us see large department private residence total Collapse.The reason of total Collapse has the following aspects
1, material of raw-soil structure house collapses in a large number: the compactness of cob wall own is not enough, between the soil body, anti-horizontal shear force is very low, will cause collapse when slight earthquake, and roof truss is directly supported on cob wall body in addition, do not arrange insulated column to support, cause roof truss to depart from support when body of wall collapses and collapse.Material of raw-soil structure house is the private residence of shock resistance extreme difference, is also the private residence that this Yiliang earthquake collapse is maximum.
2, building-block house: hollow block wall does not arrange stem stem and strip, body of wall fails to form entirety, vertical and horizontal mortar joint bond area wretched insufficiency between block, and adopts the lime putty that intensity is very low, and horizontal earthquake power causes body of wall total Collapse.Roof beam purlin is the hollow bamboo that rigidity is lower, and connect simple between rod member, during earthquake, level is rocked and caused roof to fall apart, total Collapse.
3, not vibration proof hollow blockwork floor slab structure house: any seismic measures is not taked in this kind of house, without collar tie beam, constructional column, single-skin drum sky bucket brick wall, vertical pressure-bearing and horizontal anti-seismic ability extreme difference, in this secondary earthquake, most of house collapses.
4, not antidetonation brick wall roof structure, total Collapse is serious, brick wall masonry mortar intensity is low, without collar tie beam, constructional column seismic measures, cause body of wall shear resistance wretched insufficiency, occurred level shear failure during earthquake, major part brick wall roof adopts hard mountain to put purlin form, without independent support post, when body of wall collapses, roof is slump thereupon.
In addition, Yushu district, Qinghai and Wenchuan earthquake higher than Yiliang earthquake magnitude, private residence collapses even more serious, has any to be common, and the regional private residence antidetonation of economic condition difference is the weakest.China is the country that earthquake takes place frequently, and China is large agricultural country.Living in rural population is 6.7 hundred million people, accounts for 50.32% of national population.The wherein population below the poverty line 1.5 hundred million people, the house major part of this part people can not resist more than 5 grades earthquakes, and wherein immature soil room, simple and easy barnacle body room, empty bucket brick house, simple and easy brick house even can not resist 3 grades of earthquakes.During grange generation earthquake, major part for chief destructive situation, causes huge casualties with roof total Collapse.China, in three secondary earthquakes since Wenchuan earthquake, has caused huge casualties and property loss, so private residence seismic hardening is very urgent.
Summary of the invention
In order under the condition that allows in economy, not whole body reconstruction, at utmost can improve outlying district and have stone or brick house earthquake-resistance of housing performance, avoid again occurring shaking smaller causing the tragedy of larger personnel and property loss again to occur, the present invention proposes a kind of individual layer masonry residence steelframe and protect roof construction and construction method thereof, by arranging overall additional steelframe, the roof load of original structure all being born by additional steelframe, improve bearing capacity and the shock resistance of structure.
To achieve these goals, this invention takes following technical scheme:
A kind of individual layer masonry residence steelframe protects roof construction, described individual layer masonry residence is provided with former roof truss, install in the bottom surface of former roof truss and reinforce steelframe, described reinforcing steelframe is by least two additional horizontal girder steels, two additional longitudinal girder steels and four additional steel columns and additional basis composition, described additional longitudinal girder steel is in former vertical side within the walls, described additional horizontal girder steel is arranged on outside former gable, described additional longitudinal girder steel end rides on additional horizontal girder steel, both are fixedly connected with, jointly enclose the profile identical with original structure flat shape, described additional steel column is close to former gable or former vertical wall is arranged, its top support top is in additional horizontal girder steel end, its bottom is supported on additional basis.
Described former roof truss and additional horizontal girder steel and additional longitudinal girder steel are all fixed by U-shaped hoop.
The angle formed between described additional horizontal girder steel and additional steel column arranges diagonal brace.
Have mounting groove inside described former gable top, described additional horizontal girder steel embeds in mounting groove.
Described former vertical wall top outer has mounting groove, and described additional horizontal girder steel embeds in mounting groove.
Described individual layer masonry residence steelframe protects the construction method of roof construction, and step is as follows:
Step one, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determines the length of additional horizontal girder steel, additional longitudinal girder steel and additional steel column;
Step 2, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determines the installation site of additional horizontal girder steel, additional longitudinal girder steel and additional steel column, and to construct in advance additional basis according to the installation site of additional steel column;
Step 3, opens mounting groove on the top, four corners of former gable and former vertical wall;
Step 4, opens mounting groove position at former gable and installs additional horizontal girder steel;
Step 5, opens mounting groove position at former vertical wall and installs additional longitudinal girder steel;
Step 6, adjusts the position of additional horizontal girder steel and additional longitudinal girder steel, and additional longitudinal girder steel is ridden on additional horizontal girder steel, and both is connected, and is fixedly connected with by additional longitudinal girder steel with former roof truss simultaneously;
Step 7, is arranged on additional steel column between additional horizontal girder steel and additional basis, and by jack by between additional steel column and additional horizontal girder steel, between additional horizontal girder steel and additional longitudinal girder steel, and holds out against between additional longitudinal girder steel and former roof truss;
Step 8, waits roofing whole load to be born by steelframe, is fixedly connected with additional steel column and additional horizontal girder steel, and is fixedly connected with bottom additional steel column with additional basis.
Beneficial effect
The present invention is linked together by least two additional horizontal girder steels, two additional longitudinal girder steels, then is connected with at least four additional steel columns, forms steelframe support system.Make the load of former roof truss all effectively pass to new steelframe, load is passed to basis by steel column by steelframe, and by such process, change the force transfer system of former building structure, original wall body becomes enclosure wall from load bearing wall.When coming earthquake, because steel work has good ductility, roof is unlikely to collapse instantaneously, and on the other hand, because body of wall does not bear the load on roof, the probability collapsed in the whole face of body of wall is also smaller, and this just makes people have sufficient escape time.
Ruggedized construction of the present invention, structure is simple, and power transmission is clear and definite, do not destroy the globality of original structure, and construction period does not affect the using function of original structure, realizes larger economic and social benefit with less cost.
Accompanying drawing explanation
Fig. 1 is original structure of the present invention and ruggedized construction schematic diagram.
Fig. 2 is the present invention's additional steel column layout schematic diagram.
Fig. 3 is original structure of the present invention and ruggedized construction side elevational view.
Fig. 4 is for reinforcing steel frame construction schematic diagram.
In figure, 1: additional horizontal girder steel; 2: additional steel column; 3: additional longitudinal girder steel; 4: former gable; 5: former vertical wall; 6: former roof truss; 7: additional basis; 8:U type hoop; 9: diagonal brace.
Detailed description of the invention
As Figure 1-4, a kind of individual layer masonry residence steelframe protects roof construction, described individual layer masonry residence is provided with former roof truss 6, install in the bottom surface of former roof truss 6 and reinforce steelframe, described reinforcing steelframe is by least two additional horizontal girder steels 1, two additional longitudinal girder steels 3 and four additional steel columns 2 and additional basic 7 form, described additional longitudinal girder steel 3 is inside former vertical wall 5, described additional horizontal girder steel 1 is arranged on outside former gable 4, described additional longitudinal girder steel 3 end rides on additional horizontal girder steel 1, both are fixedly connected with, jointly enclose the profile identical with original structure flat shape, described additional steel column 2 is close to former gable 4 or former vertical wall 5 is arranged, its top support top is in additional horizontal girder steel 1 end, its bottom is supported on additional basic 7.
Described former roof truss 6 is all fixed by U-shaped hoop 8 with additional horizontal girder steel 1 and additional longitudinal girder steel 3.
The angle formed between described additional horizontal girder steel 1 and additional steel column 2 arranges diagonal brace 9.
Described former gable 4 inside top has mounting groove, and described additional horizontal girder steel 1 embeds in mounting groove.
Described former vertical wall 5 top outer has mounting groove, and described additional horizontal girder steel 1 embeds in mounting groove.
Described individual layer masonry residence steelframe protects the construction method of roof construction, and step is as follows:
Step one, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determines the length of additional horizontal girder steel 1, additional longitudinal girder steel 3 and additional steel column 2;
Step 2, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determines the installation site of additional horizontal girder steel 1, additional longitudinal girder steel 3 and additional steel column 2, and constructs additional basic 7 in advance according to the installation site of additional steel column 2;
Step 3, opens mounting groove on the top, four corners of former gable 4 and former vertical wall 5;
Step 4, opens mounting groove position at former gable 4 and installs additional horizontal girder steel 1;
Step 5, opens mounting groove position at former vertical wall 5 and installs additional longitudinal girder steel 3;
Step 6, adjusts the position of additional horizontal girder steel 1 and additional longitudinal girder steel 3, and additional longitudinal girder steel 3 is ridden on additional horizontal girder steel 1, and both is connected, and is fixedly connected with by additional longitudinal girder steel 3 with former roof truss 6 simultaneously;
Step 7, additional steel column 2 is arranged between additional horizontal girder steel 1 and additional basic 7, and by jack by between additional steel column 2 and additional horizontal girder steel 1, between additional horizontal girder steel 1 and additional longitudinal girder steel 3, and hold out against between additional longitudinal girder steel 3 and former roof truss 6;
Step 8, waits roofing whole load to be born by steelframe, is fixedly connected with additional steel column 2 and additional horizontal girder steel 1, and is fixedly connected with bottom additional steel column 2 with additional basic 7.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.

Claims (1)

1. an individual layer masonry residence steelframe protects the construction method of roof construction, described individual layer masonry residence is provided with former roof truss (6), install in the bottom surface of former roof truss (6) and reinforce steelframe, described reinforcing steelframe is by least two additional horizontal girder steels (1), two additional longitudinal girder steels (3) and four additional steel columns (2) and additional basis (7) composition, described additional longitudinal girder steel (3) is in former vertical wall (5) inner side, described additional horizontal girder steel (1) is arranged on former gable (4) outside, described additional longitudinal girder steel (3) end rides on additional horizontal girder steel (1), both are fixedly connected with, jointly enclose the profile identical with original structure flat shape, described additional steel column (2) is close to former gable (4) or former vertical wall (5) is arranged, its top support top is in additional horizontal girder steel (1) end, its bottom is supported on additional basis (7), described former roof truss (6) is all fixed by U-shaped hoop (8) with additional horizontal girder steel (1) and additional longitudinal girder steel (3), the angle formed between described additional horizontal girder steel (1) and additional steel column (2) arranges diagonal brace (9), described former gable (4) inside top has mounting groove, and described additional horizontal girder steel (1) embeds in mounting groove, described former vertical wall (5) top outer has mounting groove, and described additional horizontal girder steel (1) embeds in mounting groove, it is characterized in that: concrete steps are as follows:
Step one, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determines the length of additional horizontal girder steel (1), additional longitudinal girder steel (3) and additional steel column (2);
Step 2, according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, determine the installation site of additional horizontal girder steel (1), additional longitudinal girder steel (3) and additional steel column (2), and to construct in advance additional basis (7) according to the installation site of additional steel column (2);
Step 3, opens mounting groove on the top, four corners of former gable (4) and former vertical wall (5);
Step 4, opens mounting groove position at former gable (4) and installs additional horizontal girder steel (1);
Step 5, opens mounting groove position former vertical wall (5) and installs additional longitudinal girder steel (3);
Step 6, adjust the position of additional horizontal girder steel (1) and additional longitudinal girder steel (3), additional longitudinal girder steel (3) is made to ride on additional horizontal girder steel (1), and both are connected, additional longitudinal girder steel (3) is fixedly connected with former roof truss (6) simultaneously;
Step 7, additional steel column (2) is arranged between additional horizontal girder steel (1) and additional basis (7), and by jack by between additional steel column (2) and additional horizontal girder steel (1), between additional horizontal girder steel (1) and additional longitudinal girder steel (3), and hold out against between additional longitudinal girder steel (3) and former roof truss (6);
Step 8, waits roofing whole load to be born by steelframe, is fixedly connected with additional steel column (2) and additional horizontal girder steel (1), and is fixedly connected with additional basis (7) additional steel column (2) bottom.
CN201210468623.2A 2012-11-15 2012-11-15 Single-floor masonry residential building steel-frame canopy guard structure and construction method thereof CN102943572B (en)

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CN103306497B (en) * 2013-07-02 2015-06-03 北京建工博海建设有限公司 Shock prevention and strengthening construction method for existing brickwork dwelling house fabricated structure
CN103526952B (en) * 2013-10-12 2015-09-09 北京筑福国际工程技术有限责任公司 Masonry residence adjustable slipper block cant beam steelframe protects roof construction and construction method thereof
CN104213717B (en) * 2014-07-10 2016-08-24 上海市建筑科学研究院(集团)有限公司 Multi-storey building integration transformation method of construction
CN105888291A (en) * 2016-04-06 2016-08-24 上海十三冶建设有限公司 Connection construction method for new and old factory building roof structures

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JP2825379B2 (en) * 1991-11-21 1998-11-18 三菱製鋼株式会社 Seismic isolation structure of steel frame prefabricated house
JP2815331B2 (en) * 1995-11-13 1998-10-27 株式会社山菱 Reinforcement structure of wooden building
JPH09242183A (en) * 1996-03-11 1997-09-16 Tomoe Corp Earthquake-resistant frame structure
CN102003080B (en) * 2010-11-24 2012-08-29 北京市建筑设计研究院 Anti-seismic reinforcing structure and method of old brickwork building
CN201865365U (en) * 2010-11-24 2011-06-15 北京市建筑设计研究院 Anti-seismic reinforcing structure for old brickwork buildings
CN201933799U (en) * 2010-11-25 2011-08-17 昆明理工大学 Low-cost earthquake-resistant reinforcing door frame for purlin roof
CN202945817U (en) * 2012-11-15 2013-05-22 北京筑福国际工程技术有限责任公司 Steel frame canopy guard structure of monolayer brickwork house

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