CN209277521U - A kind of builder's jack support construction - Google Patents

Abstract

The utility model provides a kind of builder's jack support construction, including horizontal support bar, pulling rope and diagonal brace, the horizontal support bar includes fixed part and overhanging portion, fixed part is fixed on the upside of middle layer floor, overhanging portion is beyond middle layer floor edge and hanging, one end of the pulling rope is fixed on the upper floor, the other end is fixed on the end of horizontal support bar overhanging portion, the end of horizontal support bar overhanging portion is fixed in described diagonal brace one end, and the other end is fixed on lower layer's floor.It is the utility model builder's jack support construction firm and durable, safe and reliable, it is easy to install and remove, diagonal brace is other than being welded on the downside of horizontal support bar, diagonal brace connector is set also on horizontal support bar, it is further ensured that bonding strength of the diagonal brace on horizontal support bar, fixed link on horizontal support bar provided with scaffold upright rod ensure that the stabilization of scaffold so that scaffold upright rod is not susceptible to break away.

Description

A cantilevered scaffolding support structure

technical field

The utility model relates to the field of construction engineering, in particular to a supporting structure of a cantilevered scaffold.

Background technique

Cantilevered scaffolding has more advantages than traditional floor-standing scaffolding in high-rise buildings, saving a lot of materials and time, so the application of cantilevered scaffolding is becoming more and more widely. Cantilevered scaffolding refers to the The scaffolding on the rigid cantilever beam (frame) attached to the building structure is unloaded, and it is used for the operation of the main body or decoration project in the building construction and its safety protection needs. Often because the cantilevered scaffolding is in a suspended state during use, in order to ensure the safety of personnel, a more stable scaffolding support structure is required.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a cantilevered scaffold support structure, the support structure is firm and durable, the scaffold built on it is not easy to slip, safe and stable, easy to install and disassemble, suitable for cantilevered scaffolding build.

The technical scheme that the utility model realizes above-mentioned purpose is as follows:

A support structure for a cantilevered scaffold, mainly comprising a horizontal support rod, a pull rope and a diagonal brace, the horizontal support rod includes a fixed part and a suspended part, the fixed part is fixed on the upper side of the middle floor, and the suspended part exceeds the middle floor One end of the pulling rope is fixed on the upper floor, the other end is fixed on the end of the suspended part of the horizontal support rod, one end of the diagonal brace is fixed on the end of the suspended part of the horizontal support rod, and the other end is fixed on the lower floor superior.

Preferably, the ratio of the length of the suspended part of the horizontal support rod to the length of the fixed part is 1:0.5-1:2, preferably 1:1.

Further, the fixed part of the horizontal support rod is fixed on the middle floor through several U-shaped ground anchors, and the U-shaped ground anchors include two U-shaped components with threads at both ends, a fixing plate and two nuts .

Furthermore, two bolt holes are opened on the fixing plate, and the two ends of the U-shaped component can just pass through the two bolt holes, so that the fixing plate can be sleeved on the open end of the U-shaped component.

Furthermore, the size of the nut matches the threads of the two ends of the U-shaped member.

Furthermore, the closed end of the U-shaped ground anchor is pre-embedded in the middle floor, and the open end of the U-shaped ground anchor protrudes from the upper surface of the middle floor. The height is preferably equal to the sum of the height of the horizontal support bar and the thickness of the fixed plate.

Furthermore, the width of the U-shaped member is slightly larger than that of the horizontal support bar, so that the horizontal support bar can be snapped into the U-shaped member.

Generally speaking, the more the number of U-shaped ground anchors, the better the fixing effect on the horizontal support rod, but in actual use, the length and design of the horizontal support rod should be calculated and designed according to the weight of the scaffold and the weight that the scaffold needs to carry. The required number of U-shaped ground anchors, however, the number of the U-shaped ground anchors of the present utility model should be at least two, and one is respectively arranged at both ends of the fixed part of the horizontal support rod.

Further, one end of the pulling rope is connected to a buckle fixed on the upper side of the suspended part of the horizontal support rod, and the buckle is a semicircular member connected with two horizontal wings, and the buckle passes through The horizontal wing is welded on the upper side of the suspended part of the horizontal support rod.

Furthermore, the pulling rope is bound or welded on the semicircular member of the buckle.

Further, the pull rope is fixedly connected to the lower side of the upper floor through a U-shaped suspension ring, and the open end of the U-shaped suspension ring is embedded in the upper end of the frame beam on the lower side of the upper floor. Furthermore, the closed end of the U-shaped suspension ring is bent downward at an angle of 30-60°.

As a preferred solution of the present invention, the horizontal support rod has an I-shaped cross section.

Further, a diagonal bracing connecting piece 9 is welded to the lower side of the end of the suspended part of the horizontal supporting rod, and the diagonal bracing connecting piece forms an acute angle with the horizontal supporting rod.

Furthermore, both the diagonal brace and the diagonal brace connecting piece are made of channel steel, the cross section of the diagonal brace is larger than that of the diagonal brace connecting piece, and the diagonal brace connecting piece is inserted into the upper end of the diagonal brace.

The upper end of the diagonal brace is welded to the lower side of the horizontal support rod.

Furthermore, a diagonal bracing anchor is pre-embedded on the upper side of the lower floor, and the diagonal bracing connecting piece is composed of a steel plate and several anchor bars welded on the lower surface of the steel plate. The steel plate is flush with the upper surface of the lower floor. The lower end of the diagonal brace is welded on the steel plate.

Preferably, a hoisting ring is welded on the brace, and the function of the hoisting ring is to be used by a crane to hoist the brace to the position where it needs to be installed for easy installation. The position is calculated and determined according to the angle between the diagonal brace and the lower floor after installation. The principle is that after the crane lifts the diagonal brace through the hoisting ring, the angle between the diagonal brace and the lower floor is the same as the angle between the actual installation of the diagonal brace and the lower floor. The angles the slabs make are the same.

As a further preferred solution of the utility model, the upper surface of the horizontal support bar is welded with a vertically upward scaffold fixing bar, and the fixing bar is made of short steel bars. When scaffolding is built on the support structure of the utility model, The vertical rod steel pipe of the scaffold is inserted on the fixed rod to prevent displacement and sideslip of the vertical rod steel pipe, which will cause the scaffold to collapse and cause danger.

As a further preferred solution of the present invention, an angle steel is welded at the vertex of the obtuse angle formed at the connection between the diagonal brace and the horizontal support rod, and one side of the angle steel overlaps with the lower side of the horizontal support rod, so as to further provide support force in the horizontal direction for the diagonal brace .

Likewise, preferably, an angle steel is welded at the vertex of an obtuse angle formed at the connection between the diagonal brace and the steel plate of the diagonal brace anchor, and one side of the angle steel coincides with the upper surface of the steel plate of the diagonal brace anchor.

The installation and use methods of the cantilevered scaffold support structure of the present utility model are:

1) During the building construction process, a U-shaped pull ring is pre-embedded on the upper end of the frame beam of the upper floor, and several U-shaped components are pre-embedded on the middle floor. The structural members are arranged in a row in the direction perpendicular to the edge of the floor, and the diagonal brace anchors are pre-embedded in the lower floor to keep the steel plates of the diagonal braces flush with the floor surface;

2) On the horizontal support bar, pre-weld buckle rings, diagonal bracing connectors, hoisting pull rings and several scaffolding fixing bars according to the design size;

3) Place the horizontal support rods in the U-shaped grooves of the U-shaped members in turn, fill the gap between the horizontal support rods and the U-shaped members with wooden wedges and horse-tooth wires, and use fixing plates to clamp them on the U-shaped members respectively. Then use a nut to cover the opening end of the U-shaped member to fix the fixing plate tightly;

4) Fix one end of the pull rope on the U-shaped pull ring, and fix the other end on the buckle welded on the lower side of the end of the suspended part of the horizontal support rod;

5) Use a crane to lift the diagonal brace from the hoisting ring on the diagonal brace, put the upper end of the diagonal brace on the diagonal brace connector, and weld the edge of the upper end of the diagonal brace to the lower side of the horizontal support rod, and put the lower end of the diagonal brace Welded on the steel plate of the diagonal brace anchor, and weld an angle steel at the obtuse angle vertex formed by the connection between the diagonal brace and the horizontal support rod and the obtuse angle vertex formed by the connection between the diagonal brace and the steel plate of the diagonal brace anchor;

6) Install multiple sets of cantilevered scaffolding support structures of the present invention at fixed intervals, and then respectively set the scaffolding poles on the scaffolding fixing rods on the horizontal support rods to construct the scaffolding.

The supporting structure of the cantilevered scaffold of the utility model is firm, durable, safe and reliable. In addition to being welded on the lower side of the horizontal support rod, the diagonal brace is also provided with a diagonal brace connecting piece on the horizontal support rod, which further ensures the stability of the diagonal brace on the horizontal support rod. connection strength. In addition, the utility model is equipped with a fixing rod of the scaffolding pole on the horizontal support rod, so that the scaffolding pole is not easy to slip and ensures the stability of the scaffolding. The supporting structure of the cantilevered scaffold of the utility model has strong applicability, is easy to install and disassemble, and is suitable for building cantilevered scaffolds in various construction occasions.

Description of drawings

Figure 1 is a schematic diagram of the supporting structure of the cantilevered scaffold.

Figure 2 is a schematic diagram of the U-shaped suspension ring structure and connection.

Fig. 3 is a partial sectional view of part A in Fig. 1 .

Fig. 4 is a partially enlarged view of part B in Fig. 1 .

FIG. 5 is a partial sectional view of part C in FIG. 1 .

Fig. 6 is a cross-sectional view of a-a in Fig. 1 .

Figure 7 is a schematic diagram of the use state of the cantilevered scaffold support structure.

In the figure, 1-horizontal support bar, 101-fixed part of the horizontal support bar, 102-suspension part of the horizontal support bar, 2-pull rope, 3-diagonal brace, 4-middle floor, 5-upper floor, 6-lower floor Floor, 7-U-shaped ground anchor, 701-U-shaped member, 702-fixing plate, 703-nut, 8-buckle, 801-horizontal wing, 802-semicircular member, 9-U-shaped ring, 10 - Diagonal brace connector, 11 - Diagonal brace anchor, 12 - Hoisting pull ring, 13 - Scaffold fixing rod, 14 - Angle steel, 15 - Scaffold pole, 16 - Filling material.

Detailed ways

The structure of the utility model is further described below in conjunction with the accompanying drawings, which are only preferred specific embodiments of the utility model, and are not limitations of the utility model.

The cantilever scaffold support structure shown in Figures 1-6 mainly includes a horizontal support rod 1, a pull rope 2 and a diagonal brace 3, the horizontal support rod 1 includes a fixed part 101 and a suspended part 102, and the fixed part 101 is fixed on On the upper side of the middle floor 4, the suspended part 102 exceeds the edge of the middle floor 4 and is suspended in the air. One end of the pull rope 2 is fixed on the upper floor 5, and the other end is fixed on the end of the horizontal support bar 1 suspended part. One end of the diagonal brace 3 is fixed to the end of the suspended part 102 of the horizontal support rod, and the other end is fixed to the lower floor 6, and a hoisting pull ring 12 is welded on the diagonal brace; a vertical upward scaffolding fixing rod is welded on the upper surface of the horizontal support rod 1 13. The scaffold fixing rod 13 is made of short steel bars.

Specifically, the horizontal support bar 1 is made of I-beam. The ratio of the length of the suspended part 102 of the horizontal support bar to the length of the fixed part 101 is 1:1.

The horizontal support rod fixing part 101 is fixed on the middle floor 4 by three U-shaped ground anchors 7, and a U-shaped ground anchor 7 is arranged at the horizontal support rod fixing part 101 near the floor edge, and the horizontal support rod fixing part 101 is close to the floor slab. Two U-shaped ground anchors 7 are arranged at the end of the inner side.

The U-shaped ground anchor 7 includes a U-shaped member 701 with threads at both ends, a fixing plate 702 and two nuts 703 . Two bolt holes are opened on the fixing plate 702 , and the two ends of the U-shaped member 701 can just pass through the two bolt holes, so that the fixing plate 702 can be sleeved on the open end of the U-shaped member 701 . The size of the nut 703 matches the threads on both ends of the U-shaped member 701 .

As shown in Figure 6, the closed end of the U-shaped ground anchor 7 is pre-embedded in the middle floor 4, and the open end of the U-shaped ground anchor 7 protrudes from the upper surface of the middle floor 4, except for the thread at the end of the U-shaped member 701 , the height of the protruding part is preferably equal to the sum of the height of the horizontal support bar 1 and the thickness of the fixed plate. The width of the U-shaped member 701 is slightly larger than that of the horizontal support bar 1 , so that the I-beam as the horizontal support bar 1 can be snapped into the U-shaped member 701 . The space between the I-beam and the U-shaped ground anchor 7 is filled with filling materials 16 such as wooden wedges and horse-teeth wires, so as to further prevent the I-beam from slightly sliding.

As shown in Figure 4, one end of the pull rope 2 is tied to a buckle 8 fixed on the upper side of the suspended part 102 of the horizontal support rod, the buckle 8 is a semicircular member 802 connected with two horizontal wings 801, The buckle 8 is welded on the upper side of the suspended part 102 of the horizontal support rod 1 through the horizontal wing 801 .

As shown in Figure 2, the pull rope 2 is fixedly connected by a U-shaped suspension ring 9 on the lower side of the upper floor 5, and the open end of the U-shaped suspension 9 is embedded in the upper end of the frame beam on the lower side of the upper floor 5, U The closed end of type suspension ring 9 bends 30-60 ° angle downwards.

As shown in Figure 3, a diagonal brace connector 10 is welded to the lower side of the end of the suspended part 102 of the horizontal support rod. The diagonal brace connector 10 forms an acute angle with the horizontal support rod 1, and both the diagonal brace 3 and the diagonal brace connector 10 are channel steel. Made, the cross-section of the diagonal brace 3 is larger than the cross-section of the diagonal brace connector 10, the diagonal brace connector 10 is inserted into the upper end of the diagonal brace 3, and the upper end of the diagonal brace 3 is welded to the lower side of the horizontal support rod 1.

As shown in Figure 5, a diagonal brace anchor 11 is pre-embedded on the upper side of the lower floor. The surface is flush, and the lower end of the diagonal brace 3 is welded on the steel plate.

As shown in FIGS. 3 and 5 , an angle steel 14 is welded at the apex of the obtuse angle formed at the connection between the diagonal brace 3 and the horizontal support bar 1 , and one side of the angle steel 14 coincides with the lower side of the horizontal support bar 1 . An angle steel 14 is welded at the obtuse angle vertex formed at the connection between the diagonal brace 3 and the diagonal brace anchor 11 steel plate, and one side of the angle steel 14 coincides with the upper surface of the diagonal brace anchor 11 steel plate.

As shown in Figure 7, the installation and use methods of the cantilever scaffold support structure of the present utility model are:

1) During the building construction process, a U-shaped pull ring is pre-embedded on the upper end of the frame beam of the upper floor, and several U-shaped members 701 are pre-embedded on the middle floor. , the U-shaped members 701 are arranged in a row according to the direction perpendicular to the edge of the floor, and the diagonal brace anchors 11 are embedded in the lower floor, so as to keep the steel plates of the diagonal brace anchors 11 flush with the floor surface;

2) On the horizontal support bar 1, weld the buckle 8, the brace connector 10, the hoisting pull ring 12 and several scaffold fixing bars in advance according to the design size;

3) Place the horizontal support bar 1 in the U-shaped groove of the U-shaped member 701 in sequence, fill the gap between the horizontal support bar 1 and the U-shaped member 701 with filling materials 16 such as wooden wedges and horse-tooth wire, and use a fixing plate Clamp on the U-shaped member 701 respectively, and then use a nut to cover the opening end of the U-shaped member 701 to fix the fixing plate tightly;

4) One end of the pull rope 2 is fixed on the U-shaped pull ring, and the other end is fixed on the buckle 8 welded on the lower side of the end of the suspended part 102 of the horizontal support rod;

5) Use a crane to lift the brace 3 from the lifting ring 12 on the brace 3, put the upper end of the brace 3 on the brace connector 10, and weld the edge of the upper end of the brace 3 to the horizontal support rod 1 side, weld the lower end of the diagonal brace 3 to the steel plate of the diagonal brace anchor 11, and at the apex of the obtuse angle formed by the connection between the diagonal brace 3 and the horizontal support rod 1 and at the joint of the steel plate between the diagonal brace 3 and the diagonal brace anchor 11 An angle steel 14 is respectively welded at the apex of the obtuse angle formed;

6) Install multiple sets of cantilevered scaffolding support structures of the present invention at fixed intervals, and then respectively set the scaffolding poles 15 on the scaffolding fixing rods 13 on the horizontal support rods 1 to construct the scaffolding.

The utility model can also have other various embodiments, without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model, but these corresponding Changes and deformations should all belong to the protection scope of the claims of the present invention.

Claims (10)

1. a kind of builder's jack support construction mainly includes horizontal support bar (1), pulling rope (2) and diagonal brace (3), the water Flat support rod (1) includes fixed part (101) and overhanging portion (102), and fixed part (101) is fixed on middle layer floor (4) Upside, for overhanging portion (102) beyond middle layer floor (4) edge and hanging, one end of the pulling rope (2) is fixed on upper layer On floor (5), the other end is fixed on the end of horizontal support bar (1) overhanging portion (102), and described diagonal brace (3) one end is fixed on The end of horizontal support bar (1) overhanging portion (102), the other end are fixed on lower layer's floor (6).

2. builder's jack support construction according to claim 1, which is characterized in that the horizontal support bar (1) is hanged The length of empty part (102) and the length ratio of fixed part (101) are 1: 0.5~1: 2.

3. builder's jack support construction according to claim 1, which is characterized in that horizontal support bar (1) is consolidated Fixed part (101) is fixed on middle layer floor (4) by several U-shaped earth anchors (7), and the U-shaped earth anchor (7) includes two ends If threaded U-shaped component (701), fixed plate (702) and two nuts (703), opened on the fixed plate (702) there are two spiral shell Keyhole, two ends of U-shaped component (701) pass through two bolts hole, size and U-shaped component (701) of the nut (703) The screw thread of two ends matches.

4. builder's jack support construction according to claim 3, which is characterized in that the closed end of the U-shaped earth anchor (7) It is embedded in middle layer floor (4), middle layer floor (4) upper surface, the U-shaped component are stretched out in the open end of U-shaped earth anchor (7) (701) width is greater than the width of horizontal support bar (1).

5. builder's jack support construction according to claim 4, which is characterized in that the quantity of the U-shaped earth anchor (7) is extremely Less be two, be respectively set one at the both ends of horizontal support bar fixed part (101), the horizontal support bar (1) it is transversal Face is I-shaped.

6. builder's jack support construction according to claim 1, which is characterized in that one end of the pulling rope (2) connects The retaining ring (8) being fixed on the upside of horizontal support bar overhanging portion (102) at one is connect, the retaining ring (8) is one and two level The connected semi-circular member (802) of alar part (801), the retaining ring (8) are welded on horizontal support bar by horizontal alar part (801) and hang The upside of empty part (102), the pulling rope (2) are fixed on the semi-circular member (802).

7. builder's jack support construction according to claim 1, which is characterized in that the pulling rope (2) is in upper floor It is fixedly connected on the downside of plate (5) by a U-shaped hanging ring (9), the open end of the U-shaped hanging ring (9) is embedded under upper layer floor (5) The closed end of the upper end of the Vierendeel girder of side, the U-shaped hanging ring (9) bends downward 30-60 ° of angle.

8. builder's jack support construction according to claim 1, which is characterized in that further, described horizontally-supported Weld a diagonal brace connector (10), diagonal brace connector (10) and horizontal support bar (1) shape in the downside of bar overhanging portion (102) end At an acute angle, the diagonal brace (3) and diagonal brace connector (10) are that channel steel is made, and the cross section of diagonal brace (3) is greater than diagonal brace connector (10) cross section, the diagonal brace connector (10) are inserted into diagonal brace (3) upper end, and the upper end of the diagonal brace (3) is welded on horizontal branch An angle steel is welded in the obtuse angle apex that the diagonal brace (3) and horizontal support bar (1) junction are formed in the downside of strut (1) (14), one side of angle steel (14) and side superimposed under horizontal support bar (1).

9. builder's jack support construction according to claim 1, which is characterized in that pre-buried on the upside of lower layer's floor (6) One diagonal brace anchoring part (11), the diagonal brace connector (10) is by one block of steel plate and is welded on several dowel groups of lower surface of steel plate At the steel plate is flushed with lower layer floor (6) upper surface, and the lower end of the diagonal brace (3) is welded on the steel plate, described oblique The obtuse angle apex for supportting the steel plate junction formation of (3) and diagonal brace anchoring part (11) welds an angle steel (14), and the one of angle steel (14) Side is overlapped with diagonal brace anchoring part (11) upper surface of steel plate.

10. builder's jack support construction according to claim 1, which is characterized in that be welded with and hang on the diagonal brace (3) It fills pull ring (12), horizontal support bar (1) upper surface is welded with scaffold fixed beam (13) vertically upward.