Individual layer masonry residence steelframe protects roof construction
The utility model relates to a kind of old building ruggedized construction of building field, particularly a kind of individual layer masonry residence ruggedized construction.
On September 7th, 2012,5.7 grades of earthquakes occur in the 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 exposes incisively and vividly the anti-seismic performance of Chinese countryside local-style dwelling houses weakness.The Yiliang earthquake makes us see large department private residence total Collapse.The reason of total Collapse has the following aspects
1, the material of raw-soil structure house collapses in a large number: the compactness of cob wall own is not enough, between the soil body, water resistant straight snips shear force is very low, will cause when slight earthquake and collapse, and roof truss directly is supported on the cob wall body in addition, insulated column is not set supports, cause roof truss to break away from support when body of wall collapses and collapse.The material of raw-soil structure house is the private residence of shock resistance extreme difference, is also the maximum private residence of this Yiliang earthquake collapse.
2, building-block house: hollow block wall does not arrange stem stem and strip, and body of wall fails to form whole, vertical and horizontal mortar joint bond area wretched insufficiency between block, and adopt the very low lime putty of intensity, the earthquake horizontal force causes the body of wall total Collapse.The roof beam purlin is the lower hollow bamboo of rigidity, connects simply between rod member, and during earthquake, level is rocked and caused the roof to fall apart, total Collapse.
3, vibration proof hollow blockwork floor slab structure house not: any seismic measures is not taked in this class house, without collar tie beam, constructional column, and the empty bucket of single-skin drum brick wall, vertical pressure-bearing and horizontal anti-seismic ability extreme difference, most of house collapses in this secondary earthquake.
4, antidetonation brick wall roof structure not, 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, most of brick wall roof adopts hard mountain to put the purlin form, without the independent support post, when body of wall collapsed, the roof is slump thereupon.
In addition, Yushu district, Qinghai and Wenchuan earthquake are higher than Yiliang earthquake magnitude, and private residence collapses even more serious, and any is arranged is common, and the poor regional private residence antidetonation of economic condition 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 population below the poverty line 1.5 hundred million people wherein, this part people's dwelling house major part can not be resisted earthquake more than 5 grades, and wherein immature soil room, simple and easy barnacle body room, empty bucket brick house, simple and easy brick house even can not be resisted 3 grades of earthquakes.During grange generation earthquake, most of take the roof total Collapse as the main situation of destroying, cause huge casualties.In three secondary earthquakes of China since Wenchuan earthquake, huge casualties and property loss have been caused, so the private residence seismic hardening is very urgent.
The utility model content
Under the condition that allows in economy, whole body reconstruction not, can at utmost improve the existing stone in outlying district or brick house earthquake-resistance of housing performance, avoid again occurring causing the tragedy of larger personnel and property loss again to occur than small earthquake, the utility model proposes a kind of individual layer masonry residence steelframe and protect roof construction, add steelframe by integral body is set, the roof load of original structure is all born by adding steelframe, improved bearing capacity and the shock resistance of structure.
To achieve these goals, the utility model has been taked 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 adds horizontal girder steel by at least two, two add vertical girder steel and four and add steel column and add the basis and form, describedly add vertical girder steel in former vertical side within the walls, describedly add horizontal girder steel and be arranged on the former gable outside, the described vertical girder steel end of adding rides over and adds on horizontal girder steel, both are fixedly connected with, jointly enclose the profile identical with the original structure flat shape, the described steel column that adds is close to former gable or former vertical wall setting, its top support top is adding horizontal girder steel end, its bottom is supported on and adds on the basis.
Described former roof truss with add horizontal girder steel and add vertical girder steel and all fix by U-shaped hoop.
Described add horizontal girder steel and add the angle that forms between steel column diagonal brace is set.
Described former gable inside top has mounting groove, described adding in horizontal girder steel embedding mounting groove.
Described former vertical wall top outer has mounting groove, described adding in horizontal girder steel embedding mounting groove.
The utility model adds horizontal girder steel, two by at least two and adds vertical girder steel and link together, then adds steel column and be connected with at least four, forms the steelframe support system.Make the load of former roof truss all effectively pass to new steelframe, steelframe is given the basis by steel column with Load Transfer, by such processing, has changed the force transfer system of former building structure, and original wall body becomes enclosure wall by load bearing wall.When earthquake was arrived, because steel work has ductility preferably, the roof was unlikely to moment and collapses, and on the other hand, does not bear the load on roof due to body of wall, and the probability that the whole face of body of wall collapses is also smaller, and this just makes the people that sufficient escape time is arranged.
Ruggedized construction described in the utility model, simple in structure, power transmission is clear and definite, does not destroy the globality of original structure, and construction period do not affect the use function of original structure, realize larger economic and social benefit with less cost.
Description of drawings
Fig. 1 is original structure of the present utility model and ruggedized construction schematic diagram.
Fig. 2 is that the utility model adds steel column layout schematic diagram.
Fig. 3 is original structure of the present utility model and ruggedized construction side elevational view.
Fig. 4 is for reinforcing the steel frame construction schematic diagram.
In figure, 1: add horizontal girder steel; 2: add steel column; 3: add vertical girder steel; 4: former gable; 5: former vertical wall; 6: former roof truss; 7: add the basis; 8:U type hoop; 9: diagonal brace.
The specific embodiment
as shown in Fig. 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 adds horizontal girder steel 1 by at least two, two add vertical girder steel 3 and four and add steel column 2 and add basis 7 and form, describedly add vertical girder steel 3 in former vertical wall 5 inboards, describedly add horizontal girder steel 1 and be arranged on former gable 4 outsides, described vertical girder steel 3 ends of adding ride over and add on horizontal girder steel 1, both are fixedly connected with, jointly enclose the profile identical with the original structure flat shape, the described steel column 2 that adds is close to former gable 4 or 5 settings of former vertical wall, its top support top is adding horizontal girder steel 1 end, its bottom is supported on and adds on basis 7.
Described former roof truss 6 is all fixed by U-shaped hoop 8 with adding horizontal girder steel 1 and add vertical girder steel 3.
Described add horizontal girder steel 1 and add between steel column 2 angle that forms diagonal brace 9 is set.
Described former gable 4 inside top have mounting groove, described adding in horizontal girder steel 1 embedding mounting groove.
Described former vertical wall 5 top outer have mounting groove, described adding in horizontal girder steel 1 embedding mounting groove.
The job practices that described individual layer masonry residence steelframe protects roof construction, step is as follows:
Step 1 according to the house standard width of a room in an old-style house, depth, floor height size and roofing shape, is determined to add horizontal girder steel 1, adds vertical girder steel 3 and is added the length of 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, is determined to add horizontal girder steel 1, adds vertical girder steel 3 and is added the installation site of steel column 2, and constructs in advance according to the installation site that adds steel column 2 and add basis 7;
Step 3 is opened mounting groove on the top, four corners of former gable 4 and former vertical wall 5;
Step 4 is opened mounting groove position installation at former gable 4 and is added horizontal girder steel 1;
Step 5 is opened mounting groove position installation at former vertical wall 5 and is added vertical girder steel 3;
Step 6 is adjusted the position add horizontal girder steel 1 and to add vertical girder steel 3, makes to add vertical girder steel 3 and ride over and add on horizontal girder steel 1, and both are connected, and will add simultaneously vertical girder steel 3 and be fixedly connected with former roof truss 6;
Step 7, to add steel column 2 be arranged on add horizontal girder steel 1 and add the basis 7 between, and will add steel column 2 and add between horizontal girder steel 1 by jack, add horizontal girder steel 1 and add between vertical girder steel 3, and adding between vertical girder steel 3 and former roof truss 6 and hold out against;
Step 8 waits the roofing whole load to be born by steelframe, is fixedly connected with add steel column 2 and add horizontal girder steel 1, and will adds steel column 2 bottoms and add basic 7 and be fixedly connected with.
Be more than an exemplary embodiments of the present utility model, enforcement of the present utility model is not limited to this.