CN103498570A - Floor-adding transformation structure inside old factory building and construction method thereof - Google Patents

Floor-adding transformation structure inside old factory building and construction method thereof Download PDF

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Publication number
CN103498570A
CN103498570A CN201310476734.2A CN201310476734A CN103498570A CN 103498570 A CN103498570 A CN 103498570A CN 201310476734 A CN201310476734 A CN 201310476734A CN 103498570 A CN103498570 A CN 103498570A
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additional
steel
original structure
girder steel
additional inner
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CN103498570B (en
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董有
万兆
鞠树森
谢建明
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China Automotive Industry Engineering (Tianjin) Co., Ltd.
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BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
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Abstract

The invention relates to a floor-adding transformation structure inside an old factory building and a construction method of the floor-adding transformation structure inside the old factory building, and belongs to the field of aseismic reinforcement. The floor-adding transformation structure comprises an old factory building original structure and further comprises additional inner transverse steel girders, additional inner longitudinal steel girders, additional inner steel columns, additional outer steel columns, additional outer steel ring girders and newly added floor-adding concrete floor slabs. The additional inner longitudinal steel girders, the additional inner transverse steel girders and the additional inner steel columns are connected in a welded mode to be latticed steel frames, the ends of the additional inner transverse steel girders penetrate through the outer wall of the original structure, and the additional inner transverse steel girders, the additional outer steel columns and the additional outer steel ring girders are connected to be the whole closed steel frames through an anchoring measure. Overall loads of added floors inside the factory building are borne by the reinforced steel frames, the force transmitting mode of the original structure is changed, and through the tight anchoring measure between the girders and columns of the additional steel frames and columns of the original structure, the new structure and the old structure form a firm whole, so that a masonry structure poor in aseismic performance is transformed into the steel frame concrete composite structure which mainly depends on the additional steel frames for bearing strength.

Description

The inner storey-adding reconstruction structure of old factory building and job practices thereof
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 job practices thereof, belong to the seismic hardening technical field.
Background technology
Overbuilding story, owing to not taking new soil, is reduced investment outlay, and can take full advantage of the existing building structure, especially in old old factory rehabilitation, is used widely.The concrete-steel beam can be given full play to the characteristics 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.Simultaneously, adopt the 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.
Summary of the invention
For the urban waste industrial premises is carried out to Modification and reutilization, add layer utilizes on basis in the original structure inner space, mode by integral reinforcing continues its use function, improve the ability of its antidetonation, the present invention proposes the inner storey-adding reconstruction structure of a kind of old factory building and job practices thereof, by the load integral body that factory building inside is added to layer, by reinforcing steelframe, bear, 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 integral body, thereby poor masonry structure changes into the concrete-steel combination construction of the additional steelframe load of main dependence by anti-seismic performance, 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 present invention has taked following technical scheme:
The inner storey-adding reconstruction structure of a kind of old factory building, comprise old factory building original structure, also comprises additional inner transverse girder steel, the vertical girder steel in additional inside, additional inner steel column, additional outside steel column, additional outer steel collar tie beam and newly increase the layer concrete floor; The vertical 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 the original structure exterior wall, connect into closed steelframe integral body 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 the original structure basis by anchor slab; Be equipped with and newly increase the layer concrete floor on the vertical girder steel of additional inner transverse girder steel and additional inside.
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 the 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, with billet, welds 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 the M24 high-strength bolt.
The job practices of the inner storey-adding reconstruction structure of above-mentioned old factory building adopts step to implement as follows:
Step 1, 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, determines the length of additional inner transverse girder steel, the vertical 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 vertical girder steel in additional inside and additional inner steel column, and flatten in advance the original structure surface of base according to the installation site of additional inner steel column;
Step 3, punch to the original structure basis outside the original structure of original structure post both sides within the walls according to delimiting position;
Step 4, adopt billet and crab-bolt to be reinforced the original structure post on 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, install the vertical girder steel in additional inside and additional inner steel column, and the position of adjusting additional inner transverse girder steel, the vertical girder steel in additional inside and additional inner steel column interconnects the three, forms inside and add a layer steelframe system;
Step 7, according to additional inner transverse girder steel tip position, install and adjust 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, install additional outside steel column, and closely be 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, adjust position and the connection of whole steel frame construction, and fix each steel member, and suspension column is anchored on the original structure basis;
Step 10, knock additional inner transverse girder steel with hammer and make it and the billet close contact, additional inner transverse girder steel and steel corbel is fixing with high-strength bolt after, with billet, weld simultaneously;
Step 11, using the vertical girder steel upper surface in additional inner transverse girder steel and additional inside as shuttering supporting, and concreting forms and to newly increase the layer concrete floor, and fill up the original structure exterior wall part that punches;
Step 12, carry out antirust processing to exposed steel member.
Wherein, the concrete grade in described step 11 is not less than C30.
Beneficial effect: the present invention arranges by both direction girder steel docking in length and breadth is set, lay concrete floor above the inner steelframe of original structure, the bottom of described girder steel with the original structure basis, be fixedly connected with, and the steelframe of the steel column arranged along original structure column outer wall formation, the common adding storey for strengthening structure formed original structure.By the steel corbel anchor measure, girder steel closely is connected with the original structure post, the new combination construction of common formation, utilized former mill construction post Strength surplus, to newly increase a layer load by steelframe is transmitted on basis, and by the outer steel circle beam setting, make integral body more firm, the better requirement that has met antidetonation and added layer.
Ruggedized construction of the present invention, 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.
The accompanying drawing explanation
Fig. 1 is the inner storey-adding reconstruction of old factory building of the present invention 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 the steel corbel schematic diagram.
Fig. 5 is additional inner transverse girder steel schematic diagram.
Reference numeral: 1: original structure exterior wall; 2: the original structure post; 3: the vertical 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 the 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 vertical 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 vertical 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 integral body 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 the original structure basis by anchor slab; Be equipped with and newly increase layer concrete floor 12 on the vertical girder steel 3 of additional inner transverse girder steel 4 and additional inside.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, billet 9 adopts crab-bolt 10 to be 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 fixed on steel corbel 8 and with high-strength bolt 11, as shown in Figure 4, with billet 9, weld 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, 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, determines the length of additional inner transverse girder steel 4, the vertical 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 vertical girder steel 3 in additional inside and additional inner steel column 5, and flatten in advance the original structure surface of base according to the installation site of additional inner steel column 5;
Step 3, punch to the 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 10 pairs of original structure posts of φ 20mm crab-bolt, 2 four sides are reinforced;
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, install the vertical girder steel 3 in additional inside and additional inner steel column 5, and the position of adjusting additional inner transverse girder steel 4, the vertical girder steel 3 in additional inside and additional inner steel column 5 interconnects the three, forms inside and add a layer steelframe system;
Step 7, according to additional inner transverse girder steel 4 tip position, install and adjust 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, install additional outside steel column 7, and closely be 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 9, adjust position and the connection of whole steel frame construction, and fix each steel member, and suspension column is anchored on the original structure basis;
Step 10, knock additional inner transverse girder steel 4 with hammer and make it and billet 9 close contacts, after additional inner transverse girder steel 4 and steel corbel 8 use M24 high-strength bolts 11 are fixed, and while and billet 9 welding;
Step 11, using vertical girder steel 3 upper surfaces in additional inner transverse girder steel 4 and additional inside as shuttering supporting, builds the concrete that label is not less than C30, forms to newly increase layer concrete floor 12, and fill up original structure exterior wall 1 part that punches;
Step 12, carry out antirust processing to exposed steel member.
Be more than an exemplary embodiments of the present invention, enforcement of the present invention is not limited to this.

Claims (9)

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 vertical 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 vertical 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 integral body 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 the original structure basis by anchor slab;
Be equipped with on the vertical girder steel of additional inner transverse girder steel (4) and additional inside (3) 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), be welded with steel corbel (8) on billet (9), described additional inner transverse girder steel (4) freely-supported goes up and uses high-strength bolt (11) fixing at steel corbel (8), with billet (9), welds simultaneously.
4. the inner storey-adding reconstruction structure of old factory building according to claim 3, it 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, it 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, it 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, it is characterized in that: described high-strength bolt (11) is the M24 high-strength bolt.
8. according to the job practices of the inner storey-adding reconstruction structure of the arbitrary described old factory building of claim 1-7, it is characterized in that: adopt step to implement as follows:
Step 1, 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, determines the length of additional inner transverse girder steel (4), the vertical girder steel in additional inside (3) 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 vertical girder steel in additional inside (3) and additional inner steel column (5), and flatten in advance the original structure surface of base according to the installation site of additional inner steel column (5);
Step 3, punch to the original structure basis in original structure post (2) both sides original structure exterior walls (1) according to delimiting position;
Step 4, adopt billet (9) and crab-bolt (10) to be reinforced original structure post (2) four sides;
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, the vertical girder steel in additional inside (3) and additional inner steel column (5) are installed, the position of adjusting additional inner transverse girder steel (4), the vertical girder steel in additional inside (3) and additional inner steel column (5) interconnects the three, forms inside and adds a layer steelframe system;
Step 7, according to additional inner transverse girder steel (4) tip position, install and adjust additional outer steel collar tie beam (6) position, makes additional outer steel collar tie beam (6) ride over additional inner transverse girder steel (4) upper, and both are connected;
Step 8, install additional outside steel column (7), and closely be 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 surface;
Step 9, adjust position and the connection of whole steel frame construction, and fix each steel member, and suspension column is anchored on the original structure basis;
Step 10, knocking additional inner transverse girder steel (4) with hammer makes it and billet (9) close contact, after additional inner transverse girder steel (4) and steel corbel (8) is fixing with high-strength bolt (11), with billet (9), weld simultaneously;
Step 11, using the vertical girder steel of additional inner transverse girder steel (4) and additional inside (3) upper surface as shuttering supporting, and concreting forms and to newly increase layer concrete floor (12), and fill up original structure exterior wall (1) part that punches;
Step 12, carry out antirust processing to exposed steel member.
9. method according to claim 8, it is characterized in that: the concrete grade in described step 11 is not less than C30.
CN201310476734.2A 2013-10-12 2013-10-12 The inner storey-adding reconstruction structure of old factory building and construction method thereof Active CN103498570B (en)

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Cited By (8)

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CN106351339A (en) * 2016-10-26 2017-01-25 中国二十二冶集团有限公司 Construction method for thermal insulating sandwich concrete external wall panel with steel beams and steel columns
CN106567554A (en) * 2016-10-19 2017-04-19 北京城建北方建设有限责任公司 Reinforcing construction method of masonry structural building
CN108678417A (en) * 2018-07-31 2018-10-19 天津市建筑设计院 A kind of floor of steel structure transformation node
CN109930855A (en) * 2019-03-12 2019-06-25 北京筑福建筑科学研究院有限责任公司 A kind of industrial premises transformation use internal concrete-steel adding storey structure and its construction method
CN110107109A (en) * 2019-04-24 2019-08-09 西安长庆科技工程有限责任公司 A kind of steel and concrete structure extend beam-column joint connecting structure method
CN111287324A (en) * 2020-04-28 2020-06-16 中国船舶重工集团国际工程有限公司 Large-span prestress box-shaped simply-supported steel beam column structure and installation method
CN112282408A (en) * 2020-09-05 2021-01-29 中建二局基础设施建设投资有限公司 Municipal garden landscape house old enclosure wall body reinforcing structure and hole opening method
CN113323435A (en) * 2021-05-25 2021-08-31 中北华宇建筑工程公司 Construction method for modifying old factory building into warehouse by adding layers

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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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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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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106567554A (en) * 2016-10-19 2017-04-19 北京城建北方建设有限责任公司 Reinforcing construction method of masonry structural building
CN106351339A (en) * 2016-10-26 2017-01-25 中国二十二冶集团有限公司 Construction method for thermal insulating sandwich concrete external wall panel with steel beams and steel columns
CN108678417A (en) * 2018-07-31 2018-10-19 天津市建筑设计院 A kind of floor of steel structure transformation node
CN108678417B (en) * 2018-07-31 2023-07-21 天津市建筑设计院 Steel construction floor reforms transform node
CN109930855A (en) * 2019-03-12 2019-06-25 北京筑福建筑科学研究院有限责任公司 A kind of industrial premises transformation use internal concrete-steel adding storey structure and its construction method
CN110107109A (en) * 2019-04-24 2019-08-09 西安长庆科技工程有限责任公司 A kind of steel and concrete structure extend beam-column joint connecting structure method
CN111287324A (en) * 2020-04-28 2020-06-16 中国船舶重工集团国际工程有限公司 Large-span prestress box-shaped simply-supported steel beam column structure and installation method
CN112282408A (en) * 2020-09-05 2021-01-29 中建二局基础设施建设投资有限公司 Municipal garden landscape house old enclosure wall body reinforcing structure and hole opening method
CN113323435A (en) * 2021-05-25 2021-08-31 中北华宇建筑工程公司 Construction method for modifying old factory building into warehouse by adding layers

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