The built-in steel truss concrete combined barrel
Technical field
The utility model belongs to a kind of steel reinforced concrete cylindrical shell that is used in the highrise building.
Background technology
Existing steel concrete cylindrical shell is made up of the shear wall of sealing, its loading characteristic is the space-load structure member, have than big-difference with the loading characteristic of plane primary structure member shear wall, but the relatively poor shortcoming of the ductility of shear wall still affects giving full play to of cylindrical shell anti-seismic performance to a certain extent.The arrangement of reinforcement of the shear wall of existing formation steel concrete cylindrical shell is generally the steel mesh reinforcement that two rows are made up of horizontal and vertical distribution reinforcement, deficiencies such as its rigidity, bearing capacity and ductility cause breakoff phenomenons such as shear failure and the concrete crushing of pressurized wall limb bottom to take place, thereby structural entity is destroyed; The areas of plasticity hinge of bottom is little at the bottom of the wall, and the energy dissipation ability is lower; The shear wall that constitutes cylindrical shell easily causes the bearing capacity of cylindrical shell to reduce fast after occurring shearing diagonal crack.After the steel mesh reinforcement that horizontal and vertical distribution reinforcement is formed adds that reinforcing bar is dark and supports, can improve the anti-seismic performance of cylindrical shell, hinder giving full play to of cylindrical shell anti-seismic performance but the supporting capacity of shear wall is low.
Summary of the invention
Technical problem to be solved in the utility model is the problem that significantly improves steel concrete cylindrical shell shock resistance, unborn subject matter has: the deficiencies such as shear wall rigidity, bearing capacity and ductility that (1) constitutes the steel concrete cylindrical shell cause the concrete crushing of pressurized wall limb bottom, thereby make structural deterioration.(2) areas of plasticity hinge of bottom is little at the bottom of the wall, and the energy dissipation ability is lower.(3) after the shear wall of formation cylindrical shell occurs shearing diagonal crack, easily cause the bearing capacity of cylindrical shell to reduce fast.In order to address the above problem, the utility model proposes a kind of built-in steel truss concrete combined barrel, the built-in steel truss concrete combined barrel is a kind of space-load member, has very big intensity and lateral resisting rigidity, in highrise building, can be used as main lateral resistant member, bear the horizontal earthquake action of the overwhelming majority.The loading characteristic of cylindrical shell is the space-load structure member, have than big-difference with the loading characteristic of plane primary structure member shear wall, secretly be supported on the similar effect that spiral hoop (regarding cylindrical shell as a perpendicular cantilever hollow unit) is from the bottom to top arranged in the cylindrical shell such as reinforcing bar, the antitorque usefulness that transfers to can be arranged, and the dark support in the shear wall of plane just there is not this effect.
The technical scheme that the utility model adopted is referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the built-in steel truss concrete combined barrel that is provided, be the space tubular, it is characterized in that: its each face wall body is closed by being with dark support type steel concrete shear wall to connect, the steel mesh reinforcement that configuration two rows are made up of horizontal and vertical distribution reinforcement respectively in the dark support type steel concrete of the wherein said band shear wall, between two row's distribution reinforcement nets, add and be furnished with the reinforcing bar bearing diagonal 11 that oblique tendon constitutes and the shaped steel bearing diagonal 12 of reinforcing bar bearing diagonal 11 cores, reinforcing bar bearing diagonal 11 is used stirrup restraint, between steel mesh reinforcement, socket with socketing reinforcing bar, connect by shared frame columns 1 between the shear wall of every two sides, its Vierendeel girder 5 and frame columns 1 all adopt steel reinforced concrete structure, shaped steel 7 in the Vierendeel girder 5 and the shaped steel in the frame columns 14 constitute steel truss with shaped steel bearing diagonal 12, reinforcing bar bearing diagonal 11 and shaped steel bearing diagonal 12 are spatially spiral shape in cylindrical shell, one section reinforcing bar bearing diagonal 1-2 among the shear wall a, one section reinforcing bar bearing diagonal 2-3 among the shear wall b adjacent with shear wall a, one section reinforcing bar bearing diagonal 3-4 among the shear wall c adjacent with shear wall b, one section reinforcing bar bearing diagonal 4-5 among the shear wall d adjacent with shear wall c is continuous tendon.
Described built-in steel truss concrete combined barrel, it is characterized in that: in story height, installing two reinforcing bar bearing diagonals 11 and two shaped steel bearing diagonals 12 in every shear wall slab in the cylindrical shell respectively, reinforcing bar bearing diagonal 11 and shaped steel bearing diagonal 12 all are X-shaped, the frame anchoring is stretched into from set a roof beam in place 5 end of upper ledge in the upper end of reinforcing bar bearing diagonal 11, frame columns 1 anchoring is stretched into from set a roof beam in place 5 end of lower frame in its lower end, the edge of a wing welding of 1 shaped steel 4 in shaped steel 7 in shaped steel bearing diagonal 12 and the Vierendeel girder 5 and the frame columns.
The built-in steel truss concrete combined barrel is compared with the ordinary reinforced concrete cylindrical shell, can significantly improve the shock resistance of cylindrical shell, because the shear wall cylindrical shell is the core lateral resisting parts of building structure, improved the shock resistance of cylindrical shell, also just improved the shock resistance of structural entity, when building meets with violent earthquake, can alleviate its earthquake, prevent that it from collapsing.
Description of drawings
Fig. 1 is that the dark support in a slice shear wall of cylindrical shell is the schematic diagram that spatially spiral shape is risen, and wherein 1-6-11-12-14-13-2-7,7-2-13-14-8-3-15-16,16-15-3-8-4-9-17-18,18-17-9-4-20-19-10-5 represent an element of construction of cylindrical shell respectively.1-2-3-4-5-6,6-7-8-9-10 are two dark supports that spatially spiral shape is risen.
Fig. 2 is a slice shear wall structure arrangement of reinforcement schematic diagram in the element of construction of the utility model built-in steel truss concrete combined barrel, and the arrangement of reinforcement schematic diagram of other three sides is identical with this figure;
Fig. 3 is an A-A section enlarged diagram among Fig. 1;
Fig. 4 is a B-B section enlarged diagram among Fig. 1.
Wherein, among the figure:
The 1-frame columns, the vertical muscle in the 2-frame columns, 3-quadrangle stirrup, shaped steel in the 4-frame columns, 5-Vierendeel girder, the vertical muscle in the 6-Vierendeel girder, shaped steel in the 7-Vierendeel girder, the rectangle hoop of 8-Vierendeel girder, 9-wallboard transversely distributed steelbar, the vertical distribution reinforcement of 10-wallboard, 11-reinforcing bar bearing diagonal, 12-shaped steel bearing diagonal, connecting lacing wire between the vertical muscle of 13-bearing diagonal and two steel mesh reinforcements of shear wall, the connecting lacing wire between two steel mesh reinforcements of 14-, 15-weld stud, the affixed muscle of 16-, the stirrup of 17-bearing diagonal reinforcing bar.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail:
A slice shear wall structure arrangement of reinforcement schematic diagram such as Fig. 2, Fig. 3 and shown in Figure 4 in the element of construction of built-in steel truss concrete combined barrel, it is secretly to support shear wall slab by steel reinforced concrete frame and band concrete to constitute.Its square cross section frame columns 1 adopts steel reinforced concrete structure, and arrangement of reinforcement has the H shape shaped steel 4 of four reinforcing bars 2 and two intersections, along the vertical muscle of post equably colligation quadrangle stirrup 3, its stirrup distributes and connects the intranodal zone that joins to Liang Yuzhu; Its square-section Vierendeel girder 5 adopts steel reinforced concrete structures, and arrangement of reinforcement has four vertical muscle 6 and H shape shaped steel 7, along the vertical muscle of beam equably colligation rectangle hoop 8, the stirrup of Vierendeel girder is evenly distributed to beam-ends; The arrangement of reinforcement of shear wall is, arrange shear wall slab reinforcing bar 9 and 10 in both sides uniformly along laterally reaching vertical difference, and colligation is fixed in the crosspoint, forms two steel mesh reinforcements, insert in the frame columns respectively at reinforcing bar 9 and 10 two ends, and make it satisfy the requirement of anchorage length respectively.The arrangement of reinforcement of bearing diagonal is, affixedly symmetrically respectively in two steel mesh reinforcements of shear wall slab is secretly being supported by reinforcing bar bearing diagonal 11 and dark 12 concrete that constitute that support of shaped steel of X-shaped, and shaped steel secretly supports 12 cores that are positioned at reinforcing bar bearing diagonal 11.The frame anchoring is stretched into from the end that upper ledge is set a roof beam in place in the upper end of reinforcing bar bearing diagonal 11, the frame anchoring is stretched into from the end of lower frame beam in its lower end, and make it satisfy the requirement of anchorage length respectively, shaped steel bearing diagonal 12 welds with the shaped steel edge of a wing in the beam column, and shaped steel 7 in the Vierendeel girder 5 and the shaped steel in the frame columns 14 constitute steel trusss with shaped steel bearing diagonal 12.Installing stirrup 17 equably between four reinforcing bars of the vertical muscle 11 of bearing diagonal, reinforcing bar bearing diagonal 11, bearing diagonal shaped steel 12 connect into the dark support frame of concrete with uniform stirrup 17, behind the disturbing concrete, form concrete and secretly support.Other constructional reinforcement has, and links to each other with uniform connecting lacing wire 13 between the vertical muscle of bearing diagonal and two steel mesh reinforcements of shear wall, and it is continuous also to be less than or equal to the connecting lacing wire 14 of 600mm with spacing between two steel mesh reinforcements of seismic structural wall, earthquake resistant wall; Weld stud 15 all on the edge of a wing of shaped steel and the web; When being necessary, add affixed muscle 16 at the crossing node place of vertical muscle of bearing diagonal and frame.The shared frame columns of per two shearing walls makes the reinforcing bar that stretches into frame satisfy anchorage length, and reinforcing bar bearing diagonal 11 for being the tendon of spatially spiral shape, can adopt the mode of welding or overlap joint that tendon is connected as a single entity in cylindrical shell.With frame and the moulding of shear wall slab one piece disturbing concrete, promptly constitute the built-in steel truss concrete combined barrel at last.