CN203603523U

CN203603523U - Structure for transforming inner portion of old factory building in floor adding mode

Info

Publication number: CN203603523U
Application number: CN201320630810.6U
Authority: CN
Inventors: 董有; 万兆; 鞠树森; 谢建明
Original assignee: BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
Current assignee: BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
Priority date: 2013-10-12
Filing date: 2013-10-12
Publication date: 2014-05-21
Anticipated expiration: 2023-10-12

Abstract

The utility model relates to a structure for transforming the inner portion of an old factory building in a floor adding mode, and belongs to the field of seismic reinforcement. The structure comprises an existing structure of the old factory building, and further comprises additional internal transverse steel beams, additional internal longitudinal steel beams, additional internal steel columns, additional external steel columns, additional external steel ring beams and additional concrete floors. The additional internal transverse steel beams, the additional internal longitudinal steel beams and the additional internal steel columns are welded and connected to form a mesh-shaped steel frame. The ends of the additional internal transverse steel beams penetrate through outer walls of the existing structure, and the additional internal transverse steel beams are connected with the additional external steel columns and the additional external steel ring beams to form a closed steel frame whole through anchoring measures. According to the structure, the whole additional loads inside the factory building are borne by the reinforced steel frame, the force delivery mode of the existing structure is changed, the new structure and the existing structure form a firm whole through the tight anchoring measures of the additional steel frame beams and columns and columns in the existing structure, and therefore the masonry structure which is poor in earthquake resistance performance is conversed into the steel frame and concrete fixed structure which mainly relies on the additional steel frame for force bearing.

Description

The inner storey-adding reconstruction structure of old factory building

Technical field

The utility model relates to a kind of interlayer renovation technique, and particularly the inner storey-adding reconstruction structure of a kind of old factory building, belongs to seismic hardening technical field.

Background technology

Overbuilding story, owing to not taking new soil, is reduced investment outlay, and can make full use of existing building structure, especially in old old factory rehabilitation, is used widely.Concrete-steel beam can be given full play to the feature of two kinds of constructional materialss, has higher intensity and larger span, and in the old factory building of large space inside adds layer, application is 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 economic benefit.

Utility model content

For urban waste industrial premises is carried out to Modification and reutilization, add layer utilizes on basis in original structure inner space, continue it by the mode of integral reinforcing and use function, improve the ability of its antidetonation, the utility model proposes the inner storey-adding reconstruction structure of a kind of old factory building, bear by reinforcing steelframe by the load entirety that factory building inside is added to layer, change the power transmission pattern of original structure, and by the tight anchor measure of steelframe beam column and original structure post, make new and old structure form firm entirety, thereby masonry structure poor anti-seismic performance is changed into the concrete-steel combination construction of the additional steelframe load of main dependence, 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, the utility model has been taked 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, additional outside steel column, additional outer steel collar tie beam and newly increases 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 additional outside steel column and additional outer steel collar tie beam are along original structure outer setting closed lopping, described additional inner transverse girder steel end is through original structure exterior wall, connect into closed steelframe entirety with additional outside steel column and additional outer steel collar tie beam by anchor measure, jointly form latticed reinforcing steelframe; The suspension column of described additional inner steel column and additional outside steel column is connected with original structure basis by anchor slab; On the longitudinal girder steel of additional inner transverse girder steel and additional inside, be equipped with and newly increase 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, is welded with steel corbel on billet, and described additional inner transverse girder steel freely-supported is fixed on steel corbel and with high-strength bolt, welds with billet simultaneously.

Described additional outside 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 1, 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, add 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, determine the installation site of additional inner transverse girder steel, the longitudinal girder steel in additional inside and additional inner steel column, and flatten in advance original structure surface of base according to the installation site of additional inner steel column;

Step 3, punches outward to original structure basis at original structure post both sides original structure within the walls according to delimiting position;

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 of adjusting additional inner transverse girder steel, the longitudinal girder steel in additional inside and additional inner steel column interconnects three, forms inside and adds a layer steelframe system;

Step 7, according to additional inner transverse girder steel tip position, installs and adjusts additional outer steel collar tie beam position, and additional outer steel collar tie beam is ridden on additional inner transverse girder steel, and both are connected;

Step 8, installs additional outside steel column, and is closely connected with additional outer steel collar tie beam, and additional outside 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 member, and 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, additional inner transverse girder steel and steel corbel is fixing with high-strength bolt after, weld 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, forms and newly increases layer concrete floor, and fills up the original structure exterior wall part that punches;

Step 12, carries out antirust processing to exposed steel member.

Wherein, the concrete grade in described step 11 is not less than C30.

Beneficial effect: the utility model arranges by both direction girder steel docking is in length and breadth set, above the inner steelframe of original structure, lay concrete floor, the bottom of described girder steel be fixedly connected with original structure basis, and the steelframe of the steel column formation arranging along original structure column outer wall, jointly form the adding storey for strengthening structure to original structure.By steel corbel anchor measure, girder steel is closely connected with original structure post, the new combination construction of common formation, utilize 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, the better requirement that has met antidetonation and added layer.

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.

Accompanying drawing explanation

Fig. 1 is the inner storey-adding reconstruction of old factory building of the present utility model structural plan schematic diagram.

Fig. 2 is the additional outer steel collar tie beam of original structure 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: additional outer steel collar tie beam; 7: additional outside steel column; 8: steel corbel; 9: billet; 10: crab-bolt; 11: high-strength bolt; 12: newly increase layer concrete floor.

The specific embodiment

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 3 in additional inside, additional inner steel column 5, additional outside steel column 7, additional outer steel collar tie beam 6 and newly increase layer concrete floor 12, the longitudinal girder steel 3 in additional inside, additional inner transverse girder steel 4 and additional inner steel column 5 are welded to connect into latticed steelframe; Additional outside steel column 7 and additional outer steel collar tie beam 6 are along original structure outer setting closed lopping, additional inner transverse girder steel 4 ends are through original structure exterior wall 1, connect into closed steelframe entirety with additional outside steel column 7 and additional outer steel collar tie beam 6 by anchor measure, jointly form latticed reinforcing steelframe; The suspension column of additional inner steel column 5 and additional outside steel column 7 is connected with original structure basis by anchor slab; On the longitudinal girder steel 3 of additional inner transverse girder steel 4 and additional inside, be equipped with and newly increase 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 2 surrounding anchorings of original structure post have billet 9, particularly, the crab-bolt 10 that adopts billet 9 is fixed on original structure post 2, is welded with steel corbel 8 on billet 9, and additional inner transverse girder steel 4 freely-supporteds are on steel corbel 8 and use high-strength bolt 11 fixing, as shown in Figure 4, weld with billet 9 simultaneously.Additional outside steel column 7 is close to and is welded on the billet 9 of original structure post 2 external surfaces.

The inner storey-adding reconstruction structure of above-mentioned old factory building concrete construction method be:

Step 1, 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 3 in additional inside and additional inner steel column 5;

Step 2, add 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, determine the installation site of additional inner transverse girder steel 4, the longitudinal girder steel 3 in additional inside and additional inner steel column 5, and flatten in advance original structure surface of base according to the installation site of additional inner steel column 5;

Step 3, punches to original structure basis in original structure post 2 both sides original structure exterior walls 1 according to delimiting position;

Step 4, after adopting, 25mm billet 9 and φ 20mm crab-bolt 10 are reinforced original structure post 2 four sides;

Step 5, at billet 9 appropriate location weldable steel brackets 8, and by additional inner transverse girder steel 4 freely-supporteds on steel corbel 8:

Step 6, installs the longitudinal girder steel 3 in additional inside and additional inner steel column 5, and the position of adjusting additional inner transverse girder steel 4, the longitudinal girder steel 3 in additional inside and additional inner steel column 5 interconnects three, forms inside and adds a layer steelframe system;

Step 7, according to additional inner transverse girder steel 4 tip position, installs and adjusts additional outer steel collar tie beam 6 positions, and additional outer steel collar tie beam 6 is ridden on additional inner transverse girder steel 4, and both are connected;

Step 8, installs additional outside steel column 7, and is closely connected with additional outer steel collar tie beam 6, and additional outside steel column 7 is weldingly fixed on the billet 9 of original structure post 2 external surfaces;

Step 10, knocks additional inner transverse girder steel 4 with hammer and makes it and billet 9 close contacts, after fixing to additional inner transverse girder steel 4 and steel corbel 8 use M24 high-strength bolts 11, welds with billet 9 simultaneously;

Step 11, using longitudinal girder steel 3 upper surfaces of additional inner transverse girder steel 4 and additional inside as shuttering supporting, builds the concrete that label is not less than C30, forms and newly increases layer concrete floor 12, and fill up original structure exterior wall 1 part that punches;

Step 12, carries out antirust processing to exposed steel member.

Be more than an exemplary embodiments of the present utility model, enforcement of the present utility model is not limited to this.

Claims

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), additional outside steel column (7), additional outer steel collar tie 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 additional outside steel column (7) and additional outer steel collar tie beam (6) are along original structure outer setting closed lopping, described additional inner transverse girder steel (4) end is through original structure exterior wall (1), connect into closed steelframe entirety with additional outside steel column (7) and additional outer steel collar tie beam (6) by anchor measure, jointly form latticed reinforcing steelframe;

The suspension column of described additional inner steel column (5) and additional outside steel column (7) is connected with original structure basis by anchor slab;

On the longitudinal girder steel of additional inner transverse girder steel (4) and additional inside (3), be equipped with and newly increase layer concrete floor (12).

2. the inner storey-adding reconstruction structure of old factory building according to claim 1, it is characterized in that: 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).

3. the inner storey-adding reconstruction structure of old factory building according to claim 2, it is characterized in that: described billet (9) adopts crab-bolt (10) to be fixed on original structure post (2), on billet (9), be welded with steel corbel (8), described additional inner transverse girder steel (4) freely-supported goes up and uses high-strength bolt (11) fixing at steel corbel (8), welds with billet (9) simultaneously.

4. the inner storey-adding reconstruction structure of old factory building according to claim 3, is characterized in that: described additional outside steel column (7) is close to and is welded on the billet (9) of original structure post (2) external surface.

5. the inner storey-adding reconstruction structure of old factory building according to claim 3, is characterized in that: the thickness of described billet (9) is 25mm.

6. the inner storey-adding reconstruction structure of old factory building according to claim 3, is characterized in that: the diameter of described crab-bolt (10) is φ 20mm.

7. the inner storey-adding reconstruction structure of old factory building according to claim 3, is characterized in that: described high-strength bolt (11) is M24 high-strength bolt.