CN101550725A - Frame structure system - Google Patents
Frame structure system Download PDFInfo
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- CN101550725A CN101550725A CNA2009100390656A CN200910039065A CN101550725A CN 101550725 A CN101550725 A CN 101550725A CN A2009100390656 A CNA2009100390656 A CN A2009100390656A CN 200910039065 A CN200910039065 A CN 200910039065A CN 101550725 A CN101550725 A CN 101550725A
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Abstract
The invention discloses a novel frame structure, aiming at providing a truss-like lateral force resisting system. The novel structure system can greatly reduce the shear force and bending moment of a column, and the column mainly bears the axial force to bring the advantage of high concrete compression strength into full play. The truss-like lateral force resisting system is formed by a tension rod, a column and a floor slab through arranging the insequent tension rod between upper and lower floors, adopting semirigid connection or hinge joint between the column end and the floors. The system has strong capability of energy consumption, remarkably improves the tensility of the frame structure, greatly improves the damage-resisting capability of the building under the effect of earthquake and wind load, and prevents the building from collapsing under the effect of earthquake, thus effectively protecting the safety of lives and property of people.
Description
Technical field
The present invention relates to a kind of architectural structure system, be specifically related to a kind of frame structure system, be mainly used in the reinforced concrete structure and the steel-concrete combined structure of construction work.
Background technology
In the present reinforced concrete structure or steel-concrete combined structure, frame construction, shear wall structure, frame shear wall structure, framework-tubular construction, tubular construction, tube in tube structure are arranged.The interconnecting all to adopt of each member of above-mentioned each class formation is rigidly connected.In the general multilayer and highrise building,, be widely used owing to frame construction, frame shear wall structure, framework-tubular construction have flexible arrangement, the space is big.
The post of frame-generic structure and beam slab are rigidity lateral resisting system for being rigidly connected.Result of study according to relevant expert scholar, the rigidity of floor is very big, beam and plate all are furnished with reinforcing bar, the bending resistance of floor is also very big, the design of building structures of being undertaken by the relevant code for structural design of present China, in fact do not reach the result of " strong column and weak beam " of code requirement, have very big potential safety hazard.The survey showed that in the Wenchuan violent earthquake, structure (frame construction, frame shear wall structure, framework-tubular construction) with frame components, under geological process, structure mainly is that styletable destroys, and the rare destruction of beam-ends, large amount of building collapses because of post destroys, and causes huge life and property loss, inreal realize " strong column and weak beam " of building is not inconsistent with code requirement.
As everyone knows, concrete compressive strength is very high, but tensile strength, shear strength are all very low.Therefore, even the many again high tensile reinforcements of configuration, the shear strength of post is still limited, and the standard pair cross-section limits, and has in fact controlled the shear resistance limit value of member.
Therefore, adopt present form of structure, realize " strong column and weak beam ", certainly will increase the sectional dimension and the quantity of reinforcement of post greatly, but bring following several respects problem simultaneously: (1) increases building cost greatly; (2) influence building is used, and reduces effective usable floor area; (3) increase the weight and the rigidity of structure, carrying out a step again increases geological process, and considerable post even become short column further increases building cost.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of frame structure system is provided, the present invention is simple in structure, the clear and definite formula rationally of easy construction, stressed power transmission, this structural system can reduce the shearing and the moment of flexure of post greatly, post is to bear axial force, give full play to the high advantage of concrete crushing strength, improve the bearing capacity of post.Improve building effectively in earthquake
The object of the invention is achieved through the following technical solutions:
In common reinforced concrete structure or steel-concrete combined structure, a kind of frame structure system, comprise pull bar 1, post 3 and floor 4, at upper and lower floor gap oblique pull bar 1 is set, the two ends of pull bar 1 are separately fixed on the bean column node 2 of upper and lower floor, pull bar 1 is applied prestressing force, to adjust the structure lateral rigidity.Pull bar 1 can adopt steel strand, reinforcing bar or shaped steel, and pull bar 1, pillar 3 and floor 4 form the lateral resisting system of truss-likes.
Styletable 33 and floor 4 adopts semi-rigid be connected or hinged, and pull bar 1 also can be anchored in floor 4 and shear wall 8 intersections.
Described styletable 33 is meant by relative minimizing post 3 and the vertical muscle of the post of floor 4 junctions with the semi-rigid connection of floor 4 and disposes measures such as quantity, make the vertical muscle of post of junction dispose all the other positions that quantity is less than post 3 relatively, make the bending resistance of junction be lower than all the other positions of post 3, reduce the bonding strength of post 3 and floor 4, but certain bending moment still can be born in the junction, and this connection is called semi-rigid connection; Described styletable 33 all blocks the vertical muscle of post in styletable 33 and floor 4 junctions with hinged being meant of floor 4, in the kernel of section place of styletable 33 reinforcing bar is set or shaped steel links to each other with floor 4, styletable 33 is not born moment of flexure, only bears a power, and this styletable 33 is called hinged with being connected of floor 4.
The quantity of described pull bar 1 is cross one another two or one.
Described floor 4 comprises beam and slab floor and no beam and slab floor.
The relative prior art of the present invention has the following advantages and beneficial effect:
1, the present invention changes into truss-like lateral resisting system with the rigidity lateral resisting system of frame-generic structure, reduces the shearing and the moment of flexure of post greatly, and post is given full play to the high advantage of concrete crushing strength to bear axial force, improves the bearing capacity of post.Therefore, under geological process, styletable can not take place at the bean column node place is bent, is cut, is pressed compound action and situation about destroying, thereby has reached the effect of " strong column and weak beam ".Current Chinese code of practice adopts little shake effect to carry out structure design, promptly accomplish " little shake is not bad ", little shake effect only is equivalent to 1/4～1/6 of rarely occurred earthquake effect, and " no collapsing with strong earthquake " mainly guarantees with construction measure, seismographic record both domestic and external shows, in fact is to be difficult to guarantee.Adopt form of structure of the present invention, even under the rarely occurred earthquake effect, even building produces very big displacement, because post does not destroy, building can not collapse, and protects the people life property safety effectively.
2, pull bar can adopt high strength low relaxed steel strand or high tensile reinforcement, and deformability is big, the fatigue strength height, the truss-like lateral resisting system that pull bar and post and floor form, energy dissipation capacity is strong, improves the ductility of frame construction greatly, reduces the influence of geological process to building effectively.Therefore, the present invention especially is fit to be applied to multilayer, the high-rise building of seismic design, and the effect of the special energy-dissipating device of alternative ordinary construction.
3, because moment of flexure, shearing that post bears are very little, and to bear axial force, therefore, the arrangement of reinforcement of post can suitably reduce, in addition, adopt the strong concrete tool to have an enormous advantage, can reduce column cross-section size, reduce concrete amount, increase the building usable floor area.
4, under horizontal loads, the styletable moment of flexure is very little, so the beam-ends moment of flexure that horizontal loads causes is also very little, therefore, the corresponding reduction of beam-ends moment of flexure design load meeting reduces the beam-ends arrangement of reinforcement.The story shear that horizontal loading produces is converted into the pressure of truss system components, has utilized the bearing capacity of floor.
5, pull bar flexible arrangement, when the rigidity of certain one deck or several layers was undergone mutation, setting that can be by pull bar was to improve, and effect is remarkable, and conventional structure is then relatively very difficult, sometimes even powerless.
6, can adjust the lateral rigidity of structure by applying prestressing force.
Description of drawings
Fig. 1 is the structural representation of frame structure system of the present invention;
Fig. 2 is the overall structure schematic diagram of frame structure system of the present invention;
Fig. 3 is the overall structure schematic diagram that the present invention is applied to frame shear wall structure or framework-tubular construction;
Fig. 4 is the structural representation that the present invention is applied to the situation of the local floor height increase of building;
Fig. 5 is that the present invention is applied to building and takes out the structural representation of post situation because of local large space floor;
Fig. 6 is the schematic diagram that the present invention is applied to frame shear wall structure;
Wherein: pull bar 1, bean column node 2, post 3, styletable 33, floor 4, semi-rigid connection 5, hinged 6, hang socle 7, shear wall 8.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1:
As shown in Figure 1 and Figure 2, the present invention is applied to reinforced concrete frame structure, at upper and lower floor gap oblique pull bar 1 is set, the two ends of pull bar 1 are separately fixed on the upper and lower floor bean column node 2, adjust the floor lateral rigidity by pull bar 1 is applied prestressing force.Post 3 is connected the semi-rigid connection of employing with 4 on floor, the semi-rigid connection of styletable 33 and floor 4 is meant by reducing post 3 and the vertical muscle configuration of the post of floor 4 junctions quantity, make the bending resistance of junction be lower than all the other positions of post 3, reduce the bonding strength of post 3 and floor 4, but certain bending moment still can be born in the junction, pull bar 1 can adopt high-strength steel strand or high tensile reinforcement, and pull bar 1, post 3 and floor 4 form the lateral resisting system of truss-likes, and pull bar 1 can be hidden in the partition wall.
Embodiment 2:
As shown in Figure 3, the present invention is applied to frame shear wall structure or framework-tubular construction, at upper and lower floor gap oblique pull bar 1 is set, the two ends of pull bar 1 are separately fixed on the upper and lower floor bean column node 2, adjust the floor lateral rigidity by pull bar 1 is applied prestressing force.Post 3 is connected employing with 4 on floor hinged, styletable 33 all blocks the vertical muscle of post in styletable 33 and floor 4 junctions with hinged being meant of floor 4, in the kernel of section place of styletable 33 reinforcing bar is set or shaped steel links to each other with floor 4, styletable 33 is not born moment of flexure, pull bar 1 can adopt high-strength steel strand or high tensile reinforcement, and pull bar 1, post 3 and floor 4 form the lateral resisting system of truss-likes.This truss lateral-resistance power system and shear wall or cylindrical shell are resisted horizontal loading jointly, are suitable for high level, super-high building structure.
Embodiment 3:
As shown in Figure 4, the present invention is applied to the situation that the local floor height increase of building causes the floor lateral rigidity to diminish, because using, building needs, local floor floor height is higher, cause this layer lateral rigidity weakness, the pull bar 1 of diagonal cross is set, increase floor rigidity at this layer, the two ends of pull bar 1 are anchored in floor 4 and shear wall intersection respectively, can adjust the floor lateral rigidity by the prestressing force of adjusting pull bar 1.
Embodiment 4:
Building need be taken out post because of local large space and bloom and hang socle 7, causes the floor lateral rigidity to diminish, and can adopt frame structure system of the present invention to reinforce, and as shown in Figure 5, at upper and lower floor gap oblique pull bar 1 is set, and strengthens the floor lateral rigidity.The two ends of pull bar 1 are separately fixed on the upper and lower floor bean column node, post 3 is connected the semi-rigid connection of employing with 4 on floor, the semi-rigid connection of styletable 33 and floor 4 is meant by reducing post 3 and the vertical muscle configuration of the post of floor 4 junctions quantity, make the bending resistance of junction be lower than all the other positions of post 3, reduce the bonding strength of post 3 and floor 4, but certain bending moment still can be born in the junction, can adjust the floor lateral rigidity by the prestressing force of adjusting pull bar 1.On the upper strata of large space,, oblique pull bar 1 strengthens hanging socle 7 by being set.
Embodiment 5:
As shown in Figure 6, the present invention is applied to frame shear wall structure, getting in touch between reinforced frame and the shear wall, the integral rigidity of raising structure.At upper and lower floor gap oblique pull bar 1 is set, the two ends of pull bar 1 are separately fixed at floor 4 and shear wall 8 intersections, adjust the floor lateral rigidity by pull bar 1 is applied prestressing force.Pull bar 1, post 3, shear wall 8 and floor 4 form the lateral resisting system of truss-likes.
Claims (3)
1, a kind of frame structure system, it is characterized in that, comprise pull bar (1), post (3) and floor (4), oblique pull bar (1) is set in upper and lower floor gap, the two ends of pull bar (1) are separately fixed on the bean column node (2) of upper and lower floor, and pull bar (1) is applied prestressing force.
According to the frame structure system of claim 1, it is characterized in that 2, styletable (33) adopts semi-rigid the connection with described floor (4).
According to the frame structure system of claim 1, it is characterized in that 3, styletable (33) adopts hinged with described floor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100390656A CN101550725A (en) | 2009-04-28 | 2009-04-28 | Frame structure system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100390656A CN101550725A (en) | 2009-04-28 | 2009-04-28 | Frame structure system |
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| CN101550725A true CN101550725A (en) | 2009-10-07 |
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| CNA2009100390656A Pending CN101550725A (en) | 2009-04-28 | 2009-04-28 | Frame structure system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049688A (en) * | 2016-07-19 | 2016-10-26 | 同济大学 | Connecting unit capable of preventing structure progressive collapse after corner post failure and using method thereof |
| CN107119797A (en) * | 2017-04-25 | 2017-09-01 | 天津大学 | A kind of public building structural system with frame-shear wall and supporting construction |
| CN108625481A (en) * | 2018-05-16 | 2018-10-09 | 中国水利水电第四工程局有限公司 | A kind of movable plank house typhoon protection device |
-
2009
- 2009-04-28 CN CNA2009100390656A patent/CN101550725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106049688A (en) * | 2016-07-19 | 2016-10-26 | 同济大学 | Connecting unit capable of preventing structure progressive collapse after corner post failure and using method thereof |
| CN107119797A (en) * | 2017-04-25 | 2017-09-01 | 天津大学 | A kind of public building structural system with frame-shear wall and supporting construction |
| CN107119797B (en) * | 2017-04-25 | 2019-11-29 | 天津大学 | A kind of public building structural system with frame-shear wall and support construction |
| CN108625481A (en) * | 2018-05-16 | 2018-10-09 | 中国水利水电第四工程局有限公司 | A kind of movable plank house typhoon protection device |
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Application publication date: 20091007 |