CN103498570B - The inner storey-adding reconstruction structure of old factory building and construction method thereof - Google Patents
The inner storey-adding reconstruction structure of old factory building and construction method thereof Download PDFInfo
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- CN103498570B CN103498570B CN201310476734.2A CN201310476734A CN103498570B CN 103498570 B CN103498570 B CN 103498570B CN 201310476734 A CN201310476734 A CN 201310476734A CN 103498570 B CN103498570 B CN 103498570B
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Abstract
The present invention relates to the inner storey-adding reconstruction structure of a kind of old factory building and construction method thereof, belong to aseismatic reinforcement field.Comprise old factory building original structure, also comprise additional inner transverse girder steel, the longitudinal girder steel in additional inside, additional inner steel column, applied external steel column, applied external steel ring beam and newly increase layer concrete floor; The longitudinal girder steel in additional inside, additional inner transverse girder steel and additional inner steel column are welded to connect into latticed steelframe; Additional inner transverse girder steel end, through original structure exterior wall, connects into closed steelframe entirety with applied external steel column and applied external steel ring beam by anchor measure.The present invention is born by reinforcing steelframe by load entirety factory building inside being added layer, change the power transmission pattern of original structure, and pass through the tight anchor measure of additional steelframe beam column and original structure post, make new and old structure form firm entirety, thus masonry structure poor for anti-seismic performance is changed into the main concrete-steel combination construction relying on additional steelframe load.
Description
Technical field
The present invention relates to a kind of interlayer renovation technique, particularly the inner storey-adding reconstruction structure of a kind of old factory building and construction method thereof, belong to technical field of anti-seismic reinforcement.
Background technology
Overbuilding story, owing to not taking new soil, is reduced investment outlay, and can make full use of existing building structure, is especially used widely in old old factory rehabilitation.Concrete-steel beam can give full play to the feature of two kinds of constructional materialss, has higher intensity and larger span, add in layer in large space old factory building inside apply very suitable.Meanwhile, adopt concrete-steel structure can reduce superstructure thickness, reduce dead load, also can reduce cost and reduce investment outlay, there is significant technology and economy benefit.
Summary of the invention
In order to carry out Modification and reutilization to urban waste industrial premises, adding layer in original structure inner space utilizes on basis, its using function is continued by the mode of integral reinforcing, improve the ability of its antidetonation, the present invention proposes the inner storey-adding reconstruction structure of a kind of old factory building and construction method thereof, born by reinforcing steelframe by load entirety factory building inside being added layer, change the power transmission pattern of original structure, and pass through the tight anchor measure of steelframe beam column and original structure post, new and old structure is made to form firm entirety, thus masonry structure poor for anti-seismic performance is changed into the main concrete-steel combination construction relying on additional steelframe load, fundamentally solve at old old factory rehabilitation Central Plains seismic performance of building poor, earthquake causes personnel and the serious problem of property loss.
To achieve these goals, this invention takes following technical scheme:
The inner storey-adding reconstruction structure of a kind of old factory building, comprises old factory building original structure, also comprises additional inner transverse girder steel, the longitudinal girder steel in additional inside, additional inner steel column, applied external steel column, applied external steel ring beam and newly increase layer concrete floor; The longitudinal girder steel in described additional inside, additional inner transverse girder steel and additional inner steel column are welded to connect into latticed steelframe; Described applied external steel column and applied external steel ring beam are along the also closed lopping of original structure outer setting, described additional inner transverse girder steel end is through original structure exterior wall, closed steelframe entirety is connected into by anchor measure, the latticed reinforcing steelframe of common composition with applied external steel column and applied external steel ring beam; The suspension column of described additional inner steel column and applied external steel column is connected with original structure basis by anchor slab; The longitudinal girder steel of additional inner transverse girder steel and additional inside is equipped with and newly increases layer concrete floor.
Further, described additional inner transverse girder steel is arranged at the original structure post both sides of original structure exterior wall, and the anchoring of original structure post surrounding has billet.
Described billet adopts crab-bolt to be fixed on original structure post, and billet is welded with steel corbel, and described additional inner transverse girder steel freely-supported is on steel corbel and fix with high-strength bolt, welds with billet simultaneously.
Described applied external steel column is close to and is welded on the billet of original structure outer surface of column.
The thickness of described billet is 25mm.
The diameter of described crab-bolt is φ 20mm.
Described high-strength bolt is M24 high-strength bolt.
The construction method of the inner storey-adding reconstruction structure of above-mentioned old factory building, adopts step to implement as follows:
Step one, adds a layer position according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determines the length of additional inner transverse girder steel, the longitudinal girder steel in additional inside and additional inner steel column;
Step 2, a layer position is added according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determine the installation site of additional inner transverse girder steel, the longitudinal girder steel in additional inside and additional inner steel column, and flatten original structure surface of base in advance according to the installation site of additional inner steel column;
Step 3, punches to original structure basis according to delimitation position outward at original structure post both sides original structure within the walls;
Step 4, adopts billet and crab-bolt to reinforce original structure post four sides;
Step 5, at billet appropriate location weldable steel bracket, and by additional inner transverse girder steel freely-supported on steel corbel;
Step 6, installs the longitudinal girder steel in additional inside and additional inner steel column, and the position adjusting additional inner transverse girder steel, the longitudinal girder steel in additional inside and additional inner steel column makes three be interconnected, and forms inside and adds a layer steelframe system;
Step 7, according to additional inner transverse girder steel tip position, installs and adjusts applied external steel ring beam position, applied external steel ring beam is ridden on additional inner transverse girder steel, and both is connected;
Step 8, installs applied external steel column, and with applied external steel ring beam compact siro spinning technology, applied external steel column is weldingly fixed on the billet of original structure outer surface of column;
Step 9, adjusts position and the connection of whole steel frame construction, and fixing each steel beam column, suspension column is anchored on original structure basis;
Step 10, knocks additional inner transverse girder steel with hammer and makes it and billet close contact, after additional inner transverse girder steel and steel corbel high-strength bolt being fixed, welds with billet simultaneously;
Step 11, using the longitudinal girder steel upper surface of additional inner transverse girder steel and additional inside as shuttering supporting, concreting, is formed and newly increases layer concrete floor, and fills up original structure exterior wall and to punch part;
Step 12, carries out antirust treatment to exposed steel beam column.
Wherein, the concrete grade in described step 11 is not less than C30.
Beneficial effect: the present invention is arranged by arranging both direction girder steel docking in length and breadth, concrete floor is laid above the inner steelframe of original structure, the bottom of described girder steel is fixedly connected with original structure basis, and along the steelframe that the steel column that original structure column outer wall is arranged is formed, jointly form the adding storey for strengthening structure to original structure.By steel corbel anchor measure, by girder steel and original structure post compact siro spinning technology, the combination construction that common formation is new, make use of former mill construction post Strength surplus, to newly increase a layer load by steelframe is transmitted on basis, and make entirety more firm by outer steel circle beam setting, better meets antidetonation and the requirement adding layer.
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 the inner storey-adding reconstruction structural plan of old factory building of the present invention schematic diagram.
Fig. 2 is original structure applied external steel ring beam schematic diagram.
Fig. 3 is newly-increased inside and outside steel frame construction connection diagram.
Fig. 4 is steel corbel schematic diagram.
Fig. 5 is additional inner transverse girder steel schematic diagram.
Reference numeral: 1: original structure exterior wall; 2: original structure post; 3: the longitudinal girder steel in additional inside; 4: additional inner transverse girder steel; 5: additional inner steel column; 6: applied external steel ring beam; 7: applied external steel column; 8: steel corbel; 9: billet; 10: crab-bolt; 11: high-strength bolt; 12: newly increase layer concrete floor.
Detailed description of the invention
As Figure 1-5, the inner storey-adding reconstruction structure of a kind of old factory building, comprise old factory building original structure, additional inner transverse girder steel 4, the longitudinal girder steel in additional inside 3, additional inner steel column 5, applied external steel column 7, applied external steel ring beam 6 and newly increase layer concrete floor 12, the longitudinal girder steel in additional inside 3, additional inner transverse girder steel 4 and additional inner steel column 5 are welded to connect into latticed steelframe; Applied external steel column 7 and applied external steel ring beam 6 are along the also closed lopping of original structure outer setting, additional inner transverse girder steel 4 end is through original structure exterior wall 1, closed steelframe entirety is connected into by anchor measure, the latticed reinforcing steelframe of common composition with applied external steel column 7 and applied external steel ring beam 6; The suspension column of additional inner steel column 5 and applied external steel column 7 is connected with original structure basis by anchor slab; The longitudinal girder steel 3 of additional inner transverse girder steel 4 and additional inside is equipped with and newly increases layer concrete floor 12.Wherein, additional inner transverse girder steel 4 is arranged at original structure post 2 both sides of original structure exterior wall 1, the anchoring of original structure post 2 surrounding has billet 9, particularly, the crab-bolt 10 that adopts billet 9 is fixed on original structure post 2, and billet 9 is welded with steel corbel 8, and additional inner transverse girder steel 4 freely-supported is also fixed with high-strength bolt 11 on steel corbel 8, as shown in Figure 4, weld with billet 9 simultaneously.Applied external steel column 7 is close to and is welded on the billet 9 of original structure post 2 external surface.
The inner storey-adding reconstruction structure of above-mentioned old factory building concrete construction method be:
Step one, adds a layer position according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determines the length of additional inner transverse girder steel 4, the longitudinal girder steel in additional inside 3 and additional inner steel column 5;
Step 2, a layer position is added according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determine the installation site of additional inner transverse girder steel 4, the longitudinal girder steel in additional inside 3 and additional inner steel column 5, and flatten original structure surface of base in advance according to the installation site of additional inner steel column 5;
Step 3, punches to original structure basis according to delimitation position in original structure post 2 both sides original structure exterior wall 1;
Step 4, after adopting, 25mm billet 9 and φ 20mm crab-bolt 10 pairs of original structure post 2 four sides reinforce;
Step 5, at billet 9 appropriate location weldable steel bracket 8, and by additional inner transverse girder steel 4 freely-supported on steel corbel 8;
Step 6, installs the longitudinal girder steel in additional inside 3 and additional inner steel column 5, and the position adjusting additional inner transverse girder steel 4, the longitudinal girder steel in additional inside 3 and additional inner steel column 5 makes three be interconnected, and forms inside and adds a layer steelframe system;
Step 7, according to additional inner transverse girder steel 4 tip position, installs and adjusts applied external steel ring beam 6 position, applied external steel ring beam 6 is ridden on additional inner transverse girder steel 4, and both is connected;
Step 8, installs applied external steel column 7, and with applied external steel ring beam 6 compact siro spinning technology, applied external steel column 7 is weldingly fixed on the billet 9 of original structure post 2 external surface;
Step 9, adjusts position and the connection of whole steel frame construction, and fixing each steel beam column, suspension column is anchored on original structure basis;
Step 10, knocks additional inner transverse girder steel 4 with hammer and makes it and billet 9 close contact, after fixing with M24 high-strength bolt 11 to additional inner transverse girder steel 4 and steel corbel 8, welds with billet 9 simultaneously;
Step 11, using additional inner transverse girder steel 4 and additional inside longitudinal girder steel 3 upper surface as shuttering supporting, builds the concrete that label is not less than C30, is formed and newly increases layer concrete floor 12, and fills up original structure exterior wall 1 and to punch part;
Step 12, carries out antirust treatment to exposed steel beam column.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited thereto.
Claims (5)
1. the inner storey-adding reconstruction structure of old factory building, comprise old factory building original structure, it is characterized in that: also comprise additional inner transverse girder steel (4), the longitudinal girder steel in additional inside (3), additional inner steel column (5), applied external steel column (7), applied external steel ring beam (6) and newly increase layer concrete floor (12);
The longitudinal girder steel in described additional inside (3), additional inner transverse girder steel (4) and additional inner steel column (5) are welded to connect into latticed steelframe;
Described applied external steel column (7) and applied external steel ring beam (6) are along the also closed lopping of original structure outer setting, described additional inner transverse girder steel (4) end is through original structure exterior wall (1), closed steelframe entirety is connected into by anchor measure, the latticed reinforcing steelframe of common composition with applied external steel column (7) and applied external steel ring beam (6);
The suspension column of described additional inner steel column (5) and applied external steel column (7) is connected with original structure basis by anchor slab;
Additional inner transverse girder steel (4) and additional inside longitudinal girder steel (3) are equipped with and newly increase layer concrete floor (12);
Described additional inner transverse girder steel (4) is arranged at original structure post (2) both sides of original structure exterior wall (1), and original structure post (2) surrounding anchoring has billet (9);
Described billet (9) adopts crab-bolt (10) to be fixed on original structure post (2), billet (9) is welded with steel corbel (8), described additional inner transverse girder steel (4) freely-supported is gone up at steel corbel (8) and is used high-strength bolt (11) to fix, and welds with billet (9) simultaneously;
Described applied external steel column (7) is close to and is welded on the billet (9) of original structure post (2) external surface;
Described high-strength bolt (11) is M24 high-strength bolt.
2. the inner storey-adding reconstruction structure of old factory building according to claim 1, is characterized in that: the thickness of described billet (9) is 25mm.
3. the inner storey-adding reconstruction structure of old factory building according to claim 1, is characterized in that: the diameter of described crab-bolt (10) is φ 20mm.
4., according to the construction method of the inner storey-adding reconstruction structure of the arbitrary described old factory building of claim 1-3, it is characterized in that: adopt step to implement as follows:
Step one, adds a layer position according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determines the length of additional inner transverse girder steel (4), the longitudinal girder steel in additional inside (3) and additional inner steel column (5);
Step 2, a layer position is added according to the old factory building standard width of a room in an old-style house, depth, floor height size and inside, determine the installation site of additional inner transverse girder steel (4), the longitudinal girder steel in additional inside (3) and additional inner steel column (5), and flatten original structure surface of base in advance according to the installation site of additional inner steel column (5);
Step 3, punches to original structure basis according to delimitation position in original structure post (2) both sides original structure exterior wall (1);
Step 4, adopts billet (9) and crab-bolt (10) to reinforce original structure post (2) four sides;
Step 5, in billet (9) appropriate location weldable steel bracket (8), and by additional inner transverse girder steel (4) freely-supported on steel corbel (8);
Step 6, the longitudinal girder steel in additional inside (3) and additional inner steel column (5) are installed, adjust additional inner transverse girder steel (4), the position of the longitudinal girder steel in additional inside (3) and additional inner steel column (5) makes three be interconnected, form inside and add a layer steelframe system;
Step 7, according to additional inner transverse girder steel (4) tip position, install and adjust applied external steel ring beam (6) position, applied external steel ring beam (6) is ridden on additional inner transverse girder steel (4), and both are connected;
Step 8, install applied external steel column (7), and with applied external steel ring beam (6) compact siro spinning technology, applied external steel column (7) is weldingly fixed on the billet (9) of original structure post (2) external surface;
Step 9, adjusts position and the connection of whole steel frame construction, and fixing each steel beam column, suspension column is anchored on original structure basis;
Step 10, knock additional inner transverse girder steel (4) with hammer to make it and billet (9) close contact, after fixing with high-strength bolt (11) to additional inner transverse girder steel (4) and steel corbel (8), weld with billet (9) simultaneously;
Step 11, using additional inner transverse girder steel (4) and additional inside longitudinal girder steel (3) upper surface as shuttering supporting, concreting, is formed and newly increases layer concrete floor (12), and fills up original structure exterior wall (1) and to punch part;
Step 12, carries out antirust treatment to exposed steel beam column.
5. method according to claim 4, is characterized in that: the concrete grade in described step 11 is not less than C30.
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| CN1014919B (en) * | 1988-12-13 | 1991-11-27 | 陆建衡 | Storey-adding constructure for low-storey building |
| CN2625496Y (en) * | 2003-07-23 | 2004-07-14 | 程宗颢 | Structure of adding floor and elevator in multistoried building |
| CN201050198Y (en) * | 2007-04-19 | 2008-04-23 | 程磊 | Structure for integral transformation for old industrial factory building |
| CN203603523U (en) * | 2013-10-12 | 2014-05-21 | 北京筑福国际工程技术有限责任公司 | Structure for transforming inner portion of old factory building in floor adding mode |
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| CN108411787A (en) * | 2018-04-11 | 2018-08-17 | 中启胶建集团有限公司 | Existing curtain wall builds freely-supported conversion beam steel construction crossover construction |
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