WO2009046639A1

WO2009046639A1 - Connecting clamp and junction structure for construction steel frame

Info

Publication number: WO2009046639A1
Application number: PCT/CN2008/070284
Authority: WO
Inventors: Xiuming Gan
Original assignee: Xiuming Gan
Priority date: 2007-10-08
Filing date: 2008-02-04
Publication date: 2009-04-16
Also published as: CN101408041A

Abstract

A connecting clamp and a junction structure for construction steel frame are provided. The connecting clamp (3) comprises a bearing plate (7) and two L-shaped clamping wings (5) respectively arranged at both sides of the bearing plate (7). The clamping wing (5) is integrally formed by a pretension plate (6) opposite to the bearing plate (7) and a self-lock mounting plate (9) that joins the bearing plate (7) and the pretension plate (6) together, thus forming a U-shaped clamping groove. The self-lock mounting plate (9) has at least two through holes. The junction structure for construction steel frame comprises a pillar (1), cross beams (2) and eight connecting clamps (3), in which, the bearing plates (7) of the connecting clamps (3) are positioned on the opposite sides of the pillar (1) respectively, the pretension plates (6) are opposite to each other, and the flanges of the cross beam (2) are mounted on the self-lock mounting plate (9) by bolted connection.

Description

Connection card and building steel frame node structure

Technical field

The invention relates to a building structure and a connecting piece thereof, in particular to a connecting card and a building steel frame node structure. Background technique

In the steel frame of the building, the vertical support adopts the square steel pipe column, and the horizontal sill adopts the "H" type steel beam or the "work" type steel beam. The connection quality of the two is the key to the structural bearing capacity and seismic capacity. Conventional steel structure joints are generally welded or welded and bolted together. The disadvantages are poor stress transfer, difficulty in release, stress concentration, and large local damage. The mechanical properties depend on the material and wall thickness of the column. And the economy is poor.

ZL200510086280.3 discloses a "butter-type self-locking connection card and its connection structure of the steel frame joints of the building", as shown in FIG. 1A and FIG. 1B, a structural diagram of the connection card and a structural steel frame node structure, the construction steel frame node The structure comprises a vertical column, a beam 2' and a connection card 3' connecting the two, the connection card 3' comprises a card body 4', and two wings 5 having a gate shape in cross section are respectively arranged at two ends of the card body 4' ', the card wing 5' comprises a carrier plate 7' connected to the card body 4', a pretension plate 6' opposite thereto, and a self-locking fastening plate 9' connecting the carrier plate 7' and the pretensioning plate 6', The clamping plate 6' is integral with the self-locking fastening plate 9', has at least two through holes on the self-locking fastening plate 9', and has at least one through hole on the pre-tightening plate 6', the card body 4' On the opposite sides of the vertical column, the pretensioning plates 6' of the flaps 5' are placed opposite each other, and the webs of the cross members 2' are inserted between the pretensioning plates 6' of the oppositely disposed two flaps 5', the wings thereof The plate is placed on the self-locking fastening plate 9', and the two pre-tensioning plates 6' are fixedly connected to the webs of the beam 2' by screws first. , then screw the self-locking fastening plate 9' with the upper and lower wings of the beam 2'. The distance between the outer surfaces of the upper and lower parallel self-locking fastening plates 9' of the connecting card 3' is determined according to the height of the beam 2' to be mounted, and the self-locking shoulder at one end of the card body 4' and the other end on the same plane The distance between the self-locking shoulders is determined by the width of the vertical column to be installed. The connection structure of the steel frame joint of the building is insufficient: since the connection card is designed as a whole, the distance between the upper and lower parallel self-locking fastening plates 9' needs to match the height of the web of the connected beam, otherwise it cannot Connection, so it is necessary to accurately measure the position of the design, and the designed connection card can only match the beam of a web height, so it is not convenient to adjust the connection structure of the steel frame joint of the building.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above deficiencies and to provide a connection card and a construction steel frame node structure for facilitating adjustment of the connection to the beam.

In order to achieve the above solution, the technical solution of the present invention is: a connection card, wherein the connection card comprises a carrier plate, and a card wing having an L-shaped cross section is disposed on the left and right sides of the carrier plate, and the card wing and the carrier plate are formed. a card with a gate shape The slot is integrally formed by a pre-tensioning plate opposite to the carrier plate and a self-locking fastening plate connecting the carrier plate and the pre-tightening plate, and the self-locking fastening plate has at least two through holes.

The connection card of the present invention, wherein the pretensioning plate is parallel to the carrier plate, or the pretensioning plate is disposed obliquely to the carrier plate. The connection card of the present invention, wherein the self-locking fastening plate has a protruding self-locking shoulder near one end of the carrier plate, and the connection between the self-locking shoulder and the carrier plate has a circular arc groove toward the self-locking fastening plate. The connecting surface of the other end and the pretensioning plate is a slope.

The connection card of the present invention, wherein the pretensioning plate has at least one through hole.

A construction steel frame node structure comprising a vertical column and a crossbar, wherein the structure further comprises eight connection cards, the connection card comprises a carrier plate, and a card having an L-shaped cross section is arranged on the left and right sides of the carrier plate The wing, the wing and the carrier plate form a card slot having a gate shape, and the card wing is integrally formed by a pre-tensioning plate opposite to the carrier plate and a self-locking fastening plate connecting the carrier plate and the pre-tightening plate, and the self-locking fastening The board has at least two through holes, each of the two connecting cards is formed into a group, and the two connecting cards of the groups are respectively located on opposite sides of the vertical column, and the pretensioning plates of the card wings are oppositely placed, the beam The wings are placed above or below the self-locking fastening plate, and the self-locking fastening plates are screwed to the upper and lower wings of the beam.

The construction steel frame node structure of the present invention, wherein the pretensioning plate has at least one through hole, and the pretensioning plate is screwed to the web of the beam.

The construction steel frame joint structure of the present invention, wherein the cross beam is two or three or four, and each has a V-shaped cross, a T-shaped cross, and a cross in the vertical column.

The construction steel frame joint structure of the present invention, wherein the outer surface of the vertical column is uniformly provided with four friction shear plates, which are located between the vertical column and the connection card, and the friction shear plate is V-shaped in cross section or The C-shaped friction plate and the shear plate connected to the middle of the two sides of the friction plate, the shear plates of the adjacent friction shear plates and the beam webs between the two shear plates are fastened together by bolts .

After adopting the above scheme, the connection card and the construction steel frame node structure of the invention are designed as a half-type connection card on the basis of the design of the original connection card, so that the connection card is not required to design the precise size of the connection card in advance when connecting with the beam. , can be connected to the beam at different times in different ways, without the problem of incompatibility, the connection between the connection card and the beam can be the connection design of the self-locking fastening plate of the connection card and the beam wing, or the self-locking of the connection card The fastening plate and the pre-tightening plate are connected with the wing plate and the web of the beam, and the selection is large and the adjustment is convenient.

The invention will now be further described with reference to the drawings and embodiments.

DRAWINGS

Figure 1A is a perspective view of a conventional connection card;

1B is a schematic view showing a connection structure of a conventional building steel frame node;

Figure 2 is a perspective view of the connection card of the present invention; Figure 3 is a perspective view of the construction steel frame joint structure of the present invention;

Figure 4 is a schematic view showing another embodiment of the construction steel frame node structure of the present invention;

Figure 5 is a view showing the state of use of the structural steel frame joint structure of the present invention;

Figure 6 is a structural schematic view of a construction steel frame joint (with a friction shear plate) of the present invention;

Figure 6A is a schematic structural view of the friction shear plate of Figure 6;

Figure 7 is a structural schematic view of another embodiment of the construction steel frame joint (with friction shear plate) of the present invention;

Figure 8 is a schematic view showing the structure of a construction steel frame joint (with a friction shear plate) of the present invention. detailed description

2 and FIG. 3 are a perspective view showing the structure of the connecting card of the present invention and the joint structure of the steel frame of the building. The structural structure of the steel frame of the building includes a vertical column with a square cross section, and four vertically opposite I-shaped crossbars 2 and 8. As shown in FIG. 2, the connection card 3 includes a carrier plate 7. On the left and right sides of the carrier plate 7, a wing 5 having an L-shaped cross section is disposed, and the card wing 5 and the carrier plate 7 form a cross section. a door-shaped card slot 5 integrally formed by a pre-tensioning plate 6 opposite to the carrier plate 7 and a self-locking fastening plate 9 connecting the carrier plate 7 and the pre-tensioning plate 6, the self-locking fastening plate 9 being close to the carrier plate One end of the sleeve 7 has a convex self-locking shoulder 8 , and the joint of the self-locking shoulder 8 and the carrier plate 7 has a circular arc groove toward the self-locking fastening plate 9 , and the other end of the connection surface with the pre-tensioning plate 6 In the case of a bevel or a concave surface, the self-locking fastening plate 9 has two through holes, and the pretensioning plate 6 has a through hole. Each of the two sets of connecting cards 3 is fixed with a beam 2, and each of the two connecting cards 3 constitutes a set of mating connections, and the two connecting cards 3 of each group are respectively located on opposite sides of the vertical column 1, one of the beams 2 Two sets of connecting cards 3 are respectively disposed at four corners of the intersection of the web and the wing of the I-shaped cross beam 2, and each set of connecting cards 3 is symmetrically distributed around the web of the beam 2, which is connected to the card 3 The self-locking fastening plate 9 is symmetrically placed on the wing plate of the beam 2 and screwed to the wing plate. The pre-tightening plate 6 is symmetrically placed on the web of the beam 2 and connected to the web, and the other two sets of connection cards are fixed to the other. The two sets of connecting cards 3 are respectively placed on the upper and lower sides of the upper and lower wings of the beam 2, and a set of connecting cards 3 of the upper wing are symmetrically placed, and the two pre-tightening plates 6 are close to each other and screwed together, and their respective The self-locking fastening plates 9 are all screwed onto the wings of the beam 2, and a set of connection cards 3 under the lower wing are connected in the same manner as the connection cards 3 on the upper wing.

FIG. 4 is a schematic view showing another embodiment of a construction steel frame joint structure according to the present invention. The structural steel frame joint structure includes a vertical column 1" having a square cross section, two orthogonal intersecting I-shaped crosses 2" and eight The connection card 3", the connection card 3" includes the carrier plate 7", and the left and right sides of the carrier plate 7" are provided with a flap 5" having an L-shaped cross section, and the card wing 5" and the carrier plate 7" form a section a door-shaped card slot 5" integrally formed by a pre-tensioning plate 6" opposite to the carrier plate 7 and a self-locking fastening plate 9" connecting the carrier plate 7" and the pre-tightening plate 6", self-locking fastening One end of the plate 9 "close to the carrier plate 7" has a convex self-locking shoulder 8", and the connection between the self-locking shoulder 8" and the carrier plate 7" has a circular arc groove toward the "self-locking fastening plate 9" direction. The connecting end of the other end and the pretensioning plate 6" is a beveled surface, the self-locking fastening plate 9" has two through holes, and the pre-tightening plate 6" has a through hole. Each of the two sets of connecting cards 3" is fixed Beam 2", each two connection cards 3" form a group of mating connections, two sets of two connection cards 3 〃 respectively located on opposite sides of the vertical column 1", a set of connecting cards 3" on one of the beams 2" is disposed at the upper two corners of the intersection of the web and the wing of the I-beam 2" And the set of connecting cards 3 "is symmetrically distributed around the web of the beam 2", and the self-locking fastening plate 9 of the connecting card 3" is symmetrically placed under the wing of the beam 2" and screwed to the wing. The pretensioning plate 6 is placed symmetrically on the web of the beam 2" and connected to the web, and another set of connecting cards are placed under the lower wing, and the set of connecting cards 3 are symmetrically placed, and the two pretensioning plates are 6 "face-to-face close together and screwed together, their respective self-locking fastening plates 9" are screwed onto the wing of the beam 2", the other beam 2" on the connecting card 3" and the beam 2" The connection method is the same as that of the aforementioned beam and the connection card.

In general, the yokes 2 are vertically arranged with each other, so that the pretensioning plate 6 is parallel to the carrier plate 7, see Fig. 3. In some cases, one or two of the traverses 2 need to be turned at an angle in the horizontal direction. Therefore, the pretensioning plate 6 needs to be disposed obliquely to the carrier plate 7, as shown in the construction steel frame node of the present invention shown in FIG. The state of use diagram of the structure, the tilt angle of which is determined according to actual needs.

FIG. 6 is a schematic structural view of a steel frame joint of the present invention (with a friction shear plate), the node structure of the steel frame includes a vertical column having a square cross section, and four vertically opposite I-shaped crossbars 2 and 8. The connection card 3 and the four friction shear plates 11 are combined with the structural diagram of the friction shear plate shown in FIG. 6A. The friction shear plate 11 is composed of a friction plate 111 having a V-shaped cross section and a middle portion of the friction plate 111. The connected shear plates 112 are formed, and the friction plates 111 of the four friction shear plates 11 are uniformly attached to the outer surface of the vertical column 1, the shear plates 112 of the adjacent friction shear plates 11 and the two shear resistant plates. The webs of the beams 2 between the plates 112 are fastened together by bolts, and each of the two sets of connecting cards 3 is fixed with a beam 2, and each two connecting cards 3 form a set of mating connections, and two connecting cards of each group 3 They are respectively located on opposite sides of the vertical column 1, and a friction shearing plate 11 is installed between the vertical column 1 and the connecting card 3, and two sets of connecting cards 3 on one of the beams 2 are respectively disposed on the belly of the I-shaped cross beam 2. Four corners at the intersection of the board and the wing, and each group The card 3 is symmetrically distributed around the web of the beam 2, and the self-locking fastening plate 9 of the connecting card 3 is symmetrically placed on the wing plate of the beam 2 and screwed to the wing plate, and the pre-tightening plate 6 is symmetrically placed on the beam. The web of 2 is connected to the web, and the other two sets of connecting cards are fixed to the other beam. The two sets of connecting cards 3 are respectively placed on the upper and lower sides of the upper and lower wings of the beam 2, and a set of connecting cards of the upper wing 3 Symmetrically placed, the two pretensioning plates 6 are close to each other and screwed together, and their respective self-locking fastening plates 9 are screwed onto the wings of the beam 2, and a set of connecting cards 3 under the lower wing are The connection card 3 on the upper wing is connected in the same manner.

FIG. 7 is a structural schematic view of another embodiment of the construction steel frame joint (with a friction shear plate) of the present invention, the structural steel frame joint structure comprising a vertical section of a square section 1", three vertically opposite I-shaped cross-sections 2", the three beams 2" constitute a T-shape, eight connection cards 3" and four friction shear plates 11", a friction shear plate 11", a friction plate 111 having a V-shaped cross section, and a friction plate 111 The "shear plate 112 connected to the middle of the two sides" constitutes, the friction plates 111 of the four friction shear plates 11" are uniformly attached to the outer surface of the vertical column 1", and the shear resistance of each adjacent friction shear plate 11〃 The webs of the beam 2" between the plate 112" and the two shear plates 112" are fastened together by bolts, and each set of connecting cards 3 "fixes a beam 2", each two The connection card 3" constitutes a set of mating connections, and the two connection cards 3" of each group are respectively located on opposite sides of the vertical column 1", and the friction shear plate 11 is installed between the vertical column 1" and the connection card 3". , two sets of connecting cards 3" on one of the beams 2" are respectively disposed at four corners of the intersection of the web and the wing of the I-shaped beam 2", and each set of connecting cards 3" with the beam 2" The web is symmetrically distributed at the center, and the self-locking fastening plate 9 of the connecting card 3" is symmetrically placed on the wing plate of the beam 2" and is screwed to the wing plate, and the pre-tightening plate 6" is symmetrically placed on the beam 2" The web is connected to the web, and the other two sets of connecting cards are fixed to the other beam. The two sets of connecting cards 3" are respectively placed on the upper and lower sides of the upper and lower wings of the beam 2", and a set of connecting cards of the upper wing 3 "symmetrically placed, the two pretensioning plates 6" are close to each other and screwed together, their respective self-locking fastening plates 9" are screwed onto the wings of the beam 2", a group under the lower wing The connection card 3" is connected in the same way as the connection card 3" on the upper wing.

FIG. 8 is a structural schematic view showing still another embodiment of the steel frame joint of the present invention (with a friction shear plate), which is substantially the same as the component parts in FIG. 7 except that it is composed of two vertical beams 2 "'Composition, and two beams 2"' constitute a V-shape, the other parts have the same code, and are added on them.

The connection card and the construction steel frame node structure of the invention are designed as a half-type connection card on the basis of the design of the original connection card, so that when the connection card is connected with the beam, the precise size of the connection card does not need to be designed in advance, and the connection manner can be different. Feel free to connect with the beam, there is no problem that can not be matched. The connection between the connection card and the beam can be the connection design of the self-locking fastening plate and the beam wing, or the connection between the connecting card and the web and the wing of the beam. It is highly selective and easy to adjust.

The node structure of the invention has stronger impact resistance than the existing connection mode, and the force transmission is good and the release is fast; the friction shear plate has the function of directly connecting with the web of the beam, which can generate a two-way force, that is, along the beam abdomen The upward and downward force of the plate produces bending and shear resistance to the beam and directly bears the shear resistance. At the same time, it fully transmits the pressure of the connecting card and enlarges the effective friction surface with the connected vertical column cylinder. Get enough load capacity. The structure of the present invention distributes forces uniformly at the macroscopic nodes.

The embodiments described above are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Variations and modifications are intended to fall within the scope of the invention as defined by the appended claims.

Industrial applicability

The connecting card and the structural steel frame joint structure of the invention are mainly applied to the connection and fixation of the steel frame in the construction engineering, the fastening connection between the load-bearing vertical column of the building and the beam connected thereto, and the connecting structure of the invention has strong bearing capacity , firm and safe.

Claims

Rights request

A connection card, characterized in that: the connection card (3) comprises a carrier plate (7), and two wings (5) having an L-shaped cross section are arranged on the left and right sides of the carrier plate (7), the card The wing (5) and the carrier plate (7) form two card slots having a gate shape, the card wing (5) being a pretensioning plate (6) opposite to the carrier plate (7) and a connection carrier plate (7) and The self-locking fastening plate (9) of the pretensioning plate (6) is integrally formed, and the self-locking fastening plate (9) has at least two through holes.

2. A connection card according to claim 1, characterized in that the pretensioning plate (6) is parallel to the carrier plate (7) or the pretensioning plate (6) is arranged obliquely to the carrier plate (7).

3. The connection card according to claim 2, wherein: the self-locking fastening plate (9) has a protruding self-locking shoulder (8) near one end of the carrier plate (7), the self-locking shoulder ( 8) The joint with the carrier plate (7) has a circular arc groove toward the self-locking fastening plate (9), and the other end of the connection surface with the pre-tensioning plate (6) is a slope.

4. A connection card according to claim 3, characterized in that said pretensioning plate (6) has at least one through hole.

5. A construction steel frame node structure comprising a vertical column (1) and a horizontal beam (2), characterized in that: the structure further comprises eight connection cards (3), the connection card (3) comprising a carrier board (7) A card wing (5) having an L-shaped cross section is disposed on the left and right sides of the carrier plate (7), and the card wing (5) and the carrier plate (7) form a card slot having a gate shape. The card wing (5) is integrally formed by a pre-tensioning plate (6) opposite to the carrying plate (7) and a self-locking fastening plate (9) connecting the carrying plate (7) and the pre-tightening plate (6), self-locking fastening The board (9) has at least two through holes, the two connecting cards (3) are grouped together, and the two connecting cards (3) of the groups are respectively located on opposite sides of the vertical column (1) On the upper side, the pretensioning plates (6) of the card wings (5) are placed opposite each other, and the wings of the crosspiece (2) are placed above or below the self-locking fastening plate (9), the self-locking fastening plate (9) and the beam ( 2) The upper and lower wings are screwed.

The construction steel frame node structure according to claim 5, characterized in that: the pretensioning plate (6) has at least one through hole, and the pretensioning plate (6) and the web snail of the beam (2) Pick up.

The construction steel frame joint structure according to claim 6, wherein: the beam (2) is two or three or four, and each has a V-shaped cross, a T-shaped cross, and a cross on the vertical column. (1) inside.

8. The construction steel frame joint structure according to claim 7, wherein: the outer surface of the vertical column (1) is uniformly provided with four friction shear plates (11) located at the vertical column (1) Between the connection card (3), the friction shear plate (11) is composed of a friction plate (111) having a V-shaped or C-shaped cross section and a shear plate (112 connected to the middle of both sides of the friction plate (111). The frame, the shear plate (112) of each adjacent friction shear plate (11) and the beam (2) web between the two shear plates (112) are fastened together by bolts.