Background technology
Encased structures is to be inserted in steel pipe and a kind of new composite structure formed by concrete.Because encased structures can more effectively be brought into play steel and concrete bi-material advantage separately, overcome the shortcoming that cripling easily occurs steel tubular structure, encased structures is applied to building structure gradually especially in tall and super tall R.C. buidings in recent years simultaneously.The design of node of steel core concrete column and reinforced concrete beam, directly have influence on integral rigidity, stress performance and the safety of structure, also have influence on difficulty or ease and the programming of construction, thereby become the Frame Joints of Concrete-Filled Steel Tube design key link in encased structures.
Prior art adopts steel pipe column to encorbelment, and structure that the steel corbel connection box sets a roof beam in place meets the Frame Joints of Concrete-Filled Steel Tube designing requirement, traditional steel bracket structure of encorbelmenting is directly connect or be connected on steel pipe column by steel corbel one end, the direct connection box of the steel corbel other end is set a roof beam in place, the steel pipe column of this structure connects a plurality of steel corbels, on steel pipe column, connected node place reinforcing bar is intensive, node fragility is strengthened, anti-seismic performance is poor, and a plurality of steel corbels directly, by separating on steel pipe column, affect Frame Joints of Concrete-Filled Steel Tube attractive in appearance.
The ring beam that is 201010570396.5 in the patent No., in annular steel corbel post stiffness connected node and job practices thereof, by annular steel corbel, be socketed on reinforced concrete column, set up ring beam on annular steel corbel, by connecting many Vierendeel girders on ring beam, connect many Vierendeel girders by emission on ring beam, can effectively solve the inaesthetic problem of Vierendeel girder connected node, its weak point is: annular steel corbel is by upper, lower ring plate and vertical floor form, the adaptive reinforced concrete column size of palpus when making, make loaded down with trivial details, and with reinforced concrete column around outer pack connecting structure complexity, produce, assembly cost is high, Vierendeel girder acts on annular steel corbel fully through shearing force, the moment of flexure of ring beam transmission, the annular steel corbel is connected in the reinforced concrete column outer wall around outsourcing, annular steel corbel plasticity is anti-shearing, the flexural loading poor performance, can't meet the Seismic Design Requirements of Frame Joints of Concrete-Filled Steel Tube, simultaneously, the carrying main beam of Vierendeel girder is through reinforced concrete column, still exists on steel pipe column connected node place reinforcing bar intensive, and node fragility is strengthened, the problem that anti-seismic performance is poor.
Summary of the invention
Set a roof beam in place directly and to be connected on steel pipe column through steel corbel is radial in order to solve the prior art center, and strengthened through the node fragility that the ring beam supporting frame is set a roof beam in place, the carrying main beam of Vierendeel girder exists through reinforced concrete column by annular steel corbel, the problem that anti-seismic performance is poor, it is a kind of simple in structure that the utility model provides, making, easy for installation, can take into account multidirectional punching steel corbel, ring beam, the concrete filled steel tube node of column and beam of Vierendeel girder and steel pipe column connected node reinforcing bar density and ring beam scaffold beam stress, need not Assembling, job practices is convenient, safety, cost are low.
The technical solution adopted in the utility model is: a kind of multidirectional punching steel corbel, ring beam, the concrete filled steel tube node of column and beam, comprise that a plurality of radial steel corbels and that are connected on steel pipe column are connected in steel corbel, ring beam between Vierendeel girder, its technical characterstic is that described a plurality of steel corbels the inner penetrates in steel pipe column and be welded to each other connection in steel pipe column, described ring beam comprises ring beam skeleton and concrete ring beam inner core, the ring beam skeleton by two-layer ring beam at the bottom of muscle, two-layer ring beam top muscle and ring beam stirrup form, at the bottom of every layer of ring beam, a plurality of steel rings of muscle are with one heart and in same plane, at the bottom of every layer of ring beam, a plurality of steel rings of a plurality of steel rings muscle at the bottom of a plurality of stirrup colligations and/or two-layer ring beam of muscle are through a plurality of stirrup colligations, a plurality of steel rings of every layer of ring beam top muscle are with one heart and in same plane, a plurality of steel rings of every layer of ring beam top muscle through a plurality of steel rings of a plurality of stirrup colligations and/or two-layer ring beam top muscle through a plurality of stirrup colligations, at the bottom of two-layer ring beam, muscle and two-layer ring beam top muscle are through the colligation of a plurality of ring beam stirrup, the skeleton top gluten of described Vierendeel girder is arranged between the muscle of two-layer ring beam top, and the skeleton bottom gluten of Vierendeel girder is arranged at the bottom of two-layer ring beam between muscle.
The cross section of described steel corbel is I shape, and ring beam top muscle is arranged at the steel corbel top, and at the bottom of ring beam, muscle is mounted on the steel corbel below.
During the utility model construction:
(1), steel pipe column is made: by size blanking steel plate, roll and the weldable steel tubing string, the outer wall of steel pipe column by ring beam on a plurality of Vierendeel girder planar designs position weld a plurality of steel corbels, the inner of a plurality of steel corbels is all stretched in steel pipe column and is integrally welded, has welded rear welded contact to be carried out to the ultrasonic testing/ ultrasonic examination detection;
(2), muscle is laid at the bottom of ring beam: the muscle at the bottom of the two-layer ring beam of socket on fixing lower floor's steel pipe column in building site, at the bottom of every layer of ring beam, by multi-turn and step (1) steel pipe column, concentric steel ring forms muscle;
(3), steel pipe column docking: step (1) steel pipe column is aimed at lower floor steel pipe column axis, and press the steel corbel of corresponding step (1) steel pipe column in Vierendeel girder planar design position, weldable steel tubing string and lower floor's steel pipe column, welded and rear welded contact carried out to the ultrasonic testing/ ultrasonic examination detection;
(4), the ring beam skeleton is laid: promote muscle at the bottom of two-layer ring beam, and at the bottom of adopting suspension ring by two-layer ring beam, muscle is temporarily fixed on a plurality of steel corbels, at the bottom of every layer of ring beam, a plurality of steel rings of muscle are with one heart and in same plane, and at the bottom of every layer of ring beam, a plurality of steel rings of a plurality of steel rings muscle at the bottom of a plurality of stirrup colligations and/or two-layer ring beam of muscle are through a plurality of stirrup colligations; Erection loop beam bottom board below muscle at the bottom of two-layer ring beam, socket two-layer ring beam top muscle on steel pipe column, by multi-turn and steel pipe column, concentric steel ring forms every layer of ring beam top muscle, two-layer ring beam top muscle is supported on a plurality of steel corbels, a plurality of steel rings of every layer of ring beam top muscle are with one heart and in same plane, a plurality of steel rings of every layer of ring beam top muscle through a plurality of steel rings of a plurality of stirrup colligations and/or two-layer ring beam top muscle through a plurality of stirrup colligations; At the bottom of two-layer ring beam, muscle and two-layer ring beam top muscle are through the colligation of a plurality of ring beam stirrup; At ring beam skeleton outside erection loop beam side;
(5), Vierendeel girder sets up: on corresponding steel pipe column, a plurality of steel corbel design attitudes set up the Vierendeel girder supporting row frame, set up the Vierendeel girder skeleton through the Vierendeel girder bed die on the Vierendeel girder supporting row frame, the top gluten of Vierendeel girder skeleton is arranged between the muscle of two-layer ring beam top, the bottom gluten of Vierendeel girder skeleton is arranged at the bottom of two-layer ring beam between muscle, at Vierendeel girder skeleton side, sets up the Vierendeel girder side form;
(6), ring beam, Vierendeel girder cast: to fluid concrete moulding in ring beam skeleton and Vierendeel girder skeleton.
Adopt above technical scheme, the beneficial effect that the utility model reaches is:
1, steel pipe column volume circle is made, spreading welds, the steel corbel making embeds the steel-pipe welding operation with steel corbel and can complete at produce in factory, being transported to on-the-spot level welding spreading the vertical welding that only need carry out steel pipe column sets up, reduce the Site Welding workload, greatly shortened the duration; A plurality of steel corbels are radial to be connected on steel pipe column and innerly to be connected in steel pipe column, and it is firm that steel corbel is connected with steel pipe column, effectively guarantees the harmony of the stressed transmission steel pipe column of steel corbel, the application life of raising steel pipe column and steel corbel;
2, at the bottom of ring beam, the steel ring of muscle adopts prefabricated shaping, and at the bottom of the method for first putting rear liter overcomes ring beam, muscle is difficult to overcome the difficulty that steel bracket structure is installed, and improves speed of application, has shortened the duration; At the bottom of ring beam between the muscle steel ring, between the muscle steel ring of ring beam top and at the bottom of ring beam between muscle and ring beam top muscle by the stirrup colligation, at the bottom of two-layer ring beam, muscle and two-layer ring beam top muscle are through the colligation of a plurality of ring beam stirrup, stirrup and ring beam stirrup adopt and are welded to connect, the stirrup colligation is firm, is conducive to improve ring beam intensity; Ring beam skeleton bottom adopts typing punching block bed die to coordinate side multi-disc arc ring beam side form assembling ring beam moulding, assembling, convenient disassembly, and template is reusable, cost-saving;
3, the top gluten of Vierendeel girder skeleton is arranged between the muscle of two-layer ring beam top, the bottom gluten of Vierendeel girder skeleton is arranged at the bottom of two-layer ring beam between muscle, the upper and lower Nodes of ring beam and Vierendeel girder is smooth, attractive in appearance, Vierendeel girder transmits steel pipe column through ring beam skeleton, concrete ring beam inner core, steel corbel successively at the stressed of ring beam joint place, the load transmission is stable, can take into account Vierendeel girder and steel pipe column connected node reinforcing bar density and ring beam scaffold beam stress, node is interior without intensive reinforcing bar, stressed weakness.
The utility model is made steel pipe column and multidirectional punching steel corbel to be assembled into semiproduct in factory, before steel pipe column lifting first by prefabricated ring beam at the bottom of the muscle outside of being inserted in lower floor's steel pipe column, carry out the steel pipe column lifting, location, again muscle at the bottom of ring beam risen to the ring beam position and set up ring beam top muscle, carry out the colligation of Site Welding spreading and the ring beam cage of reinforcement of steel pipe column simultaneously, then by Vierendeel girder skeleton cross-under ring beam cage of reinforcement, last formwork concreting completes node construction, this node structure is simple, in node, no-reinforcing-bar is intensive, the stressed weakness of fragility, the load transmission is stable, energy safety, stable bearing frame is set a roof beam in place, there is construction convenient, cycle is short, the advantage that cost is low, be applicable to high level and super highrise building and there is multidirectional punching steel corbel, ring beam, the construction of concrete filled steel tube node of column and beam.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Shown in Fig. 1, a kind of multidirectional punching steel corbel, ring beam, the concrete filled steel tube node of column and beam comprises a plurality of radial steel corbel 2 and ring beams that are connected on steel pipe column 1, steel corbel 2 is I shape, a plurality of steel corbels 2 the inners penetrate in steel pipe column 1 and be welded to each other connection in steel pipe columns, a plurality of steel corbels 2 outer ends are connected in ring beam, ring beam comprises ring beam skeleton and concrete ring beam inner core 5, the ring beam skeleton by two-layer ring beam at the bottom of muscle 3, two-layer ring beam top muscle 4 and ring beam stirrup 7 form, at the bottom of every layer of ring beam, a plurality of steel rings of muscle 3 are with one heart and in same plane, at the bottom of every layer of ring beam, a plurality of steel rings of a plurality of steel rings muscle at the bottom of a plurality of stirrup 6 colligations and/or two-layer ring beam of muscle are through a plurality of stirrup colligations, at the bottom of ring beam, muscle 3 is mounted on steel corbel 2 belows, a plurality of steel rings of every layer of ring beam top muscle 4 are with one heart and in same plane, and a plurality of steel rings of every layer of ring beam top muscle are through a plurality of steel rings of a plurality of stirrup colligations and/or two-layer ring beam top muscle through a plurality of stirrup colligations, and ring beam top muscle 4 is supported on steel corbel 2 tops, at the bottom of two-layer ring beam, muscle 3 and two-layer ring beam top muscle 4 are through a plurality of ring beam stirrup 7 colligations, the skeleton 8 top glutens 9 of Vierendeel girder are arranged between two-layer ring beam top muscle 4, and the skeleton 8 bottom glutens 10 of Vierendeel girder are arranged at the bottom of two-layer ring beam between muscle 3.
Multidirectional punching steel corbel, ring beam, concrete filled steel tube node of column and beam job practices comprise the following steps:
(1), steel pipe column is made: by size blanking steel plate, roll and the weldable steel tubing string, the outer wall of steel pipe column by ring beam on a plurality of Vierendeel girder planar designs position weld a plurality of steel corbels, the inner of a plurality of steel corbels is all stretched in steel pipe column and is integrally welded, has welded rear welded contact to be carried out to the ultrasonic testing/ ultrasonic examination detection;
(2), muscle is laid at the bottom of ring beam: the muscle at the bottom of the two-layer ring beam of socket on fixing lower floor's steel pipe column in building site, at the bottom of every layer of ring beam, by multi-turn and step (1) steel pipe column, concentric steel ring forms muscle;
(3), steel pipe column docking: step (1) steel pipe column is aimed at lower floor steel pipe column axis, and press the steel corbel of corresponding step (1) steel pipe column in Vierendeel girder planar design position, weldable steel tubing string and lower floor's steel pipe column, welded and rear welded contact carried out to the ultrasonic testing/ ultrasonic examination detection;
(4), the ring beam skeleton is laid: promote muscle at the bottom of two-layer ring beam, and at the bottom of adopting suspension ring by two-layer ring beam, muscle is temporarily fixed on a plurality of steel corbels, at the bottom of every layer of ring beam, a plurality of steel rings of muscle are with one heart and in same plane, and at the bottom of every layer of ring beam, a plurality of steel rings of a plurality of steel rings muscle at the bottom of a plurality of stirrup colligations and/or two-layer ring beam of muscle are through a plurality of stirrup colligations; Erection loop beam bottom board below muscle at the bottom of two-layer ring beam, socket two-layer ring beam top muscle on steel pipe column, by multi-turn and steel pipe column, concentric steel ring forms every layer of ring beam top muscle, two-layer ring beam top muscle is supported on a plurality of steel corbels, a plurality of steel rings of every layer of ring beam top muscle are with one heart and in same plane, a plurality of steel rings of every layer of ring beam top muscle through a plurality of steel rings of a plurality of stirrup colligations and/or two-layer ring beam top muscle through a plurality of stirrup colligations; At the bottom of two-layer ring beam, muscle and two-layer ring beam top muscle are through the colligation of a plurality of ring beam stirrup; At ring beam skeleton outside erection loop beam side;
(5), Vierendeel girder sets up: on corresponding steel pipe column, a plurality of steel corbel design attitudes set up the Vierendeel girder supporting row frame, set up the Vierendeel girder skeleton through the Vierendeel girder bed die on the Vierendeel girder supporting row frame, the top gluten of Vierendeel girder skeleton is arranged between the muscle of two-layer ring beam top, the bottom gluten of Vierendeel girder skeleton is arranged at the bottom of two-layer ring beam between muscle, at Vierendeel girder skeleton side, sets up the Vierendeel girder side form;
(6), ring beam, Vierendeel girder cast: to fluid concrete moulding in ring beam skeleton and Vierendeel girder skeleton.