CN219342873U - Self-balancing arched bracket with pre-pressing function for lower beam of ultra-high cable tower - Google Patents

Abstract

The utility model relates to the technical field of bridge construction, in particular to a self-balancing arched bracket with a pre-pressing function for a lower beam of an ultra-high cable tower. The self-balancing arched bracket with the pre-pressing ultra-high cable tower lower beam comprises anchor clamps, truss type tie bars and arched brackets, wherein the two anchor clamps are arranged on a cable tower, and the truss type tie bars are connected between the anchor clamps and form a whole with the anchor clamps; the arch support comprises steel pipe arch ribs, steel pipe upright posts, transverse connecting rods and horizontal steel pipes, wherein the steel pipe arch ribs are arch pipes, and arch feet of the steel pipe arch ribs are respectively connected to the two anchor ears; the cable tower further comprises a truss type counterforce frame, and the truss type counterforce frame is connected to the cable tower. The lower tower column is used as a bearing structure of the arch support, so that construction safety is ensured, and meanwhile, the manufacturing cost of the temporary support can be reduced. A triangular truss type reaction frame is arranged on an arch-shaped support, and a jack is matched with the reaction frame to realize the prepressing of the support.

Description

Self-balancing arched bracket with pre-pressing function for lower beam of ultra-high cable tower

Technical Field

The utility model relates to the technical field, in particular to a self-balancing arch support with pre-pressing function for a lower beam of an ultra-high cable tower.

Background

When the lower cross beam of the cable tower is poured by the cable-stayed bridge and the suspension bridge, the construction is mostly carried out in the form of a full framing or steel tube bailey beam combined bracket, when the lower tower column of the cable tower is higher, the height of the bracket is also increased, the workload of installation and disassembly is increased, the construction period is prolonged, and the economical efficiency is poor. After the support is built, the support is required to be pre-pressed, so that the inelastic deformation of the support is eliminated, the elastic deformation value of the support is obtained as the basis of the reserved arch degree of construction, and at present, preloading is usually adopted, namely, a water bag, a sand bag or a concrete block and the like are transported and hoisted to the support, and the preloading is required to be carried away from the support after the preloading is finished, so that the engineering quantity is large, the construction period is prolonged, and the economical efficiency is poor.

In conclusion, the construction period for pouring the lower beam of the cable tower by adopting the existing full framing or steel tube bailey beam combined frame is long, the workload is large, and the economical efficiency is poor.

Disclosure of Invention

The utility model solves the problems that: the existing full framing or steel tube bailey beam combined framing pouring cable tower lower cross beam has long construction period, large workload and poor economy.

(II) technical scheme

An ultra-high cable tower lower beam self-balancing arched bracket with pre-compaction, comprising: the device comprises anchor clamps, truss-type tie bars and arch-shaped brackets, wherein the two anchor clamps are arranged on a cable tower, and the truss-type tie bars are connected between the anchor clamps and form a whole with the anchor clamps;

the arch support comprises steel pipe arch ribs, steel pipe upright posts, transverse connecting rods and horizontal steel pipes, wherein the steel pipe arch ribs are arch pipes, and arch feet of the steel pipe arch ribs are respectively connected to the two anchor ears;

the truss type reaction frame is connected to the cable tower and is positioned above the steel pipe arch rib, and the truss type reaction frame and the horizontal steel pipe are separated by a certain height;

and a jack is arranged between the truss type reaction frame and the horizontal steel pipe, and the arch support is pressed down by the jack.

According to one embodiment of the utility model, the anchor ear is divided into two identical half hoop bodies, a quadrangular frustum cavity penetrating the anchor ear is formed in the anchor ear, connecting plates are connected to the inner side surfaces of the two sides of the half hoop bodies, and the two half hoop bodies are connected through the connecting plates to form a whole and are fixed on the cable tower.

According to one embodiment of the utility model, the upper surface of the first outer side surface of the half hoop body is connected with a right-angle triangular prism, the bottom surface of the right-angle triangular prism is connected with the upper surface of the half hoop body, the inclined surface of the right-angle triangular prism faces the steel pipe arch rib, and the arch foot of the steel pipe arch rib is connected to the inclined surface of the right-angle triangular prism.

According to one embodiment of the utility model, steel strands are wound on the outer side of the anchor ear, and the two half hoop bodies are pre-tensioned through the steel strands.

According to one embodiment of the utility model, each corner of the outer side surface of the anchor ear is provided with a hollow elbow, one end of the steel strand sequentially passes through four hollow elbows positioned at the same height, and two ends of the steel strand are screwed together so as to pre-tighten the two half hoop bodies.

According to one embodiment of the utility model, two steel pipe arch ribs are arranged, the transverse connecting rods are connected between the two steel pipe arch ribs and are arranged in a plurality, a plurality of steel pipe columns are connected to the steel pipe arch ribs along the outline of the steel pipe arch ribs, the upper surfaces of the steel pipe columns are in the same horizontal plane, and the horizontal steel pipes are connected to the upper surfaces of the steel pipe columns.

According to one embodiment of the utility model, the truss type reaction frame comprises three reaction steel pipes distributed in a triangular shape, a transverse brace is welded between the three reaction steel pipes, a plurality of top plates are welded between the two reaction steel pipes at the bottom, a plurality of bottom plates are welded between the horizontal steel pipes, the jack is fixed on the bottom plates, and the piston end of the jack acts on the top plates.

According to one embodiment of the utility model, the two ends of the truss-like reaction frame are fixed on the cable tray through connecting pieces pre-buried on the cable tray.

According to one embodiment of the utility model, a second welding hole for inserting the steel pipe arch rib is formed in the inclined plane of the right-angle triangular prism facing the steel pipe arch rib, and the steel pipe arch rib and the half hoop body are welded along the edge of the second welding hole.

According to one embodiment of the utility model, a first welding hole for inserting the truss-like tie bar is formed in the side face, facing the truss-like tie bar, of the anchor ear, and the truss-like tie bar is welded with the anchor ear along the edge of the first welding hole.

The utility model has the beneficial effects that:

the self-balancing arch support with the pre-pressing ultra-high cable tower lower cross beam provided by the utility model has the advantages that the lower tower column is utilized as the bearing structure of the arch support, the height of the support can be adjusted according to actual construction, and the support is different from a traditional floor type support erected on a cable tower bearing platform, so that the construction safety is ensured, and the manufacturing cost of a temporary support can be reduced. By arranging the triangular truss type reaction frame on the arch-shaped support and adopting the jack to match with the reaction frame, the pre-pressing of the support is realized, the workload can be reduced, the construction period can be shortened, and the cost can be reduced.

In addition, the utility model utilizes the characteristics of narrow upper part and wide lower part of the lower tower column to set the inner section of the anchor ear structure into a wedge shape, and the left and right halves of anchor ear are fixed on the cable tower through the pretightening of the steel stranded wires and the fastening action of the bolts on the connecting plate, and form self-locking when receiving downward force so as to ensure the tight connection between the anchor ear and the cable tower. In addition, the horizontal thrust of the steel pipe arch rib to the cable tower is balanced to the truss-like tie rod that sets up, can effectively prevent that great moment of flexure value from appearing in lower tower column root.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a bracket according to an embodiment of the present utility model mounted on a cable tower;

FIG. 2 is a side view of a bracket provided in an embodiment of the present utility model;

FIG. 3 is a schematic view of a half hoop body with a hollow elbow removed;

fig. 4 is a structural diagram of a hoop provided in an embodiment of the present utility model;

FIG. 5 is an installation view of a hoop and truss tie provided by an embodiment of the present utility model;

fig. 6 is an enlarged view of a portion a of fig. 5 according to an embodiment of the present utility model.

Icon: 101-a cable tower; 102-hoops; 103-truss tie bars; 104-steel pipe arch ribs; 105-steel pipe upright posts; 106-a transverse connecting rod; 107-truss type reaction frames; 108-jack; 109-horizontal steel pipe; 110-bolts; 111-steel stranded wires; 112-connecting plates.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 6, an embodiment of the present utility model provides a self-balancing arch bracket of a lower beam of an ultra-high cable tower with pre-compression, comprising: the steel pipe arch support comprises steel pipe arch ribs 104, the steel pipe arch ribs 104 are arch pipes, and arch feet of the steel pipe arch ribs 104 are respectively connected to the two anchor clamps 102; wherein truss tie bars 103 eliminate horizontal thrust forces on cable tower 101 at the arch support feet, thereby reducing the bottom bending moment of the lower tower column of cable tower 101.

The lower tower column is used as a bearing structure of the arch support, the height of the support can be adjusted according to actual construction, the support is different from a traditional floor type support erected on a cable tower bearing platform, the construction safety is ensured, the manufacturing cost of the temporary support can be reduced, and the workload is small and the construction period can be shortened.

The arch support further comprises a truss type counterforce frame 107, the truss type counterforce frame 107 is connected to the cable tower 101 and is located above the steel pipe arch rib 104, the truss type counterforce frame 107 and the horizontal steel pipe 109 are separated by a certain height, the height is reserved for installing the jack 108, therefore the height is larger than the length of the jack 108 in a natural state, the jack 108 is installed between the truss type counterforce frame 107 and the horizontal steel pipe 109, and the arch support is pressed down through the jack 108. In the embodiment, the jack 108 acts on the truss type reaction frame 107, and simultaneously gives a reaction force to the arch-shaped support to pre-press the arch-shaped support, so that inelastic deformation of the support and the foundation is eliminated, and compared with the preloading, the engineering is small, and the construction cost is reduced, and the construction period is shortened.

According to a specific embodiment, as shown in fig. 3 and 4, the anchor ear 102 is divided into two identical half hoop bodies, a quadrangular frustum cavity penetrating the anchor ear 102 is formed inside the anchor ear 102, the quadrangular frustum cavity is narrow at the upper end and wide at the lower end, and is wedge-shaped, and because the lower tower column is in a quadrangular frustum shape with a wide lower part and a narrow upper part, after the anchor ear 102 is mounted on the lower tower column, the anchor ear 102 can be stably locked on the lower tower column without sliding. In addition, as shown in fig. 4, 5 and 6, the side of the hoop 102 facing the truss-like tie bar 103 is provided with a first welding hole into which the truss-like tie bar 103 is inserted, after four main beams of the truss-like tie bar 103 are inserted into the first welding hole, the truss-like tie bar 103 is welded with the hoop 102 along the edge of the first welding hole, so that the hoop 102 can bear the truss-like tie bar 103, the joint of the truss-like tie bar 103 and the hoop cannot be broken, and safety is greatly improved.

The inner sides of the two sides of the half hoops are integrally formed with connecting plates 112, namely, the connecting plates 112 are arranged on one side of the half hoops facing the truss-like tie bars 103 and one side far away from the truss-like tie bars 103, the two half hoops are connected through the connecting plates 112 to form a whole and are fixed on the cable tower 101, two connecting plates 112 are symmetrically arranged on one side of each half hoop facing the truss-like tie bars 103 and one side far away from the truss-like tie bars 103, one connecting plate 112 is close to the upper surface of the half hoops, the other connecting plate 112 is close to the lower surface of the half hoops, and the connecting plates 112 between the two half hoops are fixed through bolts 110.

According to a specific embodiment, steel strands 111 are wound on the outer side of the anchor ear 102, two half hoop bodies are connected through the steel strands 111, specifically, three hollow elbows are welded at each corner of the outer side surface of the anchor ear 102, the first hollow elbow is close to the upper surface of the anchor ear 102, the second hollow elbow is located in the middle of the anchor ear 102, the third hollow elbow is close to the lower surface of the anchor ear 102, 12 hollow elbows are installed in total, three steel strands 111 are installed, one end of each steel strand 111 sequentially penetrates through four hollow elbows located at the same height, and then two ends of the steel strand 111 are screwed together to connect the two half hoop bodies. In the case of installing the anchor 102, the connection plates 112 may be connected by pre-connecting the anchor by the steel strands 111 and then connecting the anchor by the bolts 110.

Specifically, when installing the anchor ear 102, as shown in fig. 4, 5 and 6, two half hoop bodies are firstly buckled on the lower tower column of the cable tower 101, then three steel strands 111 are respectively penetrated into hollow elbows of the anchor ear 102, then two ends of the steel strands 111 are twisted together by using a tool, the two half hoop bodies are connected together along with gradual twisting of the steel strands 111, then connecting plates 112 on the two half hoop bodies are fixed by using bolts 110, and the two half hoop bodies are thoroughly fixed together. When the three steel strands 111 can be removed, they are fixed only by the connecting plates 112 and the bolts 110.

According to a specific embodiment, as shown in fig. 3 and fig. 4, the upper surface of the first outer side surface of the half hoop body is integrally formed with a right triangular prism, the bottom surface of the right triangular prism is connected with the upper surface of the half hoop body, the inclined surface of the right triangular prism faces the steel pipe arch rib 104, and the arch foot of the steel pipe arch rib 104 is connected to the inclined surface of the right triangular prism. The inclined surface of the right-angle triangular prism facing the steel pipe arch rib 104 is provided with a second welding hole for the steel pipe arch rib 104 to be inserted, and the steel pipe arch rib 104 and the half hoop body can be welded along the edge of the second welding hole. The top of the anchor ear 102 is inclined, and the arch foot of the steel pipe arch rib 104 is vertical to the inclined plane, so that the characteristics of the arch seat in the bridge can be well simulated, and the force transmission of the bracket and the stress of the cable tower 101 are facilitated.

According to a specific embodiment, as shown in fig. 2, the arched bracket comprises two steel tube ribs 104, a plurality of steel tube columns 105, a plurality of transverse connecting rods 106 and two horizontal steel tubes 109, the transverse connecting rods 106 being welded between the two steel tube ribs 104. While the steel pipe columns 105 are connected to the steel pipe arch rib 104 along the outline of the steel pipe arch rib 104, the steel pipe columns 105 are all vertically arranged, as can be seen from fig. 2, the length of the steel pipe column 105 located at the outermost side of the steel pipe arch rib 104 is longest, the length of the steel pipe column 105 located at the middle position is shortest, the length of the steel pipe column 105 is gradually reduced from the outer side to the middle position, the steel pipe columns 105 at the two sides of the steel pipe arch rib 104 are symmetrical, and the upper surfaces of the steel pipe columns 105 are all on the same horizontal plane. The horizontal steel pipes 109 are welded to the upper surfaces of the steel pipe columns 105, two horizontal steel pipes 109 are at the same height, and a plurality of bottom plates are welded between the horizontal steel pipes 109, and the bottom plates are set at equal intervals.

According to a specific embodiment, as shown in fig. 1 and 2, two ends of the truss-type reaction frame 107 are fixed on the cable tower 101 through connectors pre-buried on the cable tower 101, steel plate connectors are reserved in advance when the cable tower 101 is poured, two ends of the truss-type reaction frame 107 are welded on the steel plate connectors when a bracket is installed, then the steel plate connectors can be cut after the construction of the lower beam is completed, and the surface of the cable tower 101 is free from redundant protrusions.

In this embodiment, truss-like reaction frame 107 is including being three reaction steel pipes that triangle distributes, is connected through welding many crossbrace between the three reaction steel pipes, and still welds a plurality of roofs between the two reaction steel pipes that are located the bottom, and the roof equidistance sets up and with the bottom plate one-to-one on the horizontal steel pipe 109, makes things convenient for jack 108 piston end towards truss-like reaction frame 107 loading, and concrete jack 108 is fixed in on the bottom plate, and the piston end of jack 108 acts on the roof. The piston end of the jack 108 pushes the top plate on the truss type reaction frame 107 upwards, and simultaneously, the reverse acting force is transferred downwards to pre-press the arch-shaped support, and the reading of the jack 108 can be controlled to be loaded step by step and the pre-pressing force can be accurately controlled in the pre-pressing process. The water bag, the sand bag or the concrete block and the like are not required to be transported and hoisted on the bracket for prepressing, so that the engineering quantity is small compared with the preloading, the construction period is shortened, and the cost is reduced.

The specific steps for constructing the arch support are as follows:

step one: after the concrete of the lower tower column of the cable tower 101 is cured to reach a certain strength, the anchor ear 102 is installed. When in installation, the left and right parts of the anchor ear 102 are hoisted to a working platform at a designated position as shown in fig. 3 and 4, the anchor ear 102 is pre-tightened by stretching the steel strand 111 as shown in fig. 5, then the anchor ear is fastened by bolts on the connecting plate 112, and the steel strand 111 can be removed after the bolts 110 are fastened. In addition, the upper part of the anchor ear 102 is inclined, so that the characteristics of an arch abutment in a bridge can be well simulated, and the force transmission of a bracket and the stress of the cable tower 101 are facilitated;

step two: and (5) hoisting the arched bracket. The steel pipe arch rib 104, the transverse connecting rod 106, the steel pipe upright 105 and the upper horizontal steel pipe 109 of the arch bracket can be welded into a whole first, then the whole hoisting is carried out, if the weight of the hoisting is too large, one part of the steel pipe arch rib is welded in advance, the other part of the steel pipe arch rib is installed after the hoisting is finished, then the arch foot of the steel pipe arch rib 104 is inserted into a second welding hole on the inclined surface of the anchor ear 102, and the arch foot and the anchor ear 102 are welded together;

step three: truss-like tie-bar 103 is hoisted and welded to anchor ear 102, and self-balancing is formed among arch-like brackets, anchor ear 102 and truss-like tie-bar 103. So far, the whole arch support is fixed;

step four: hoisting a triangular truss type counter-force frame 107 and fixing the counter-force frame on the cable tray 101 through a connecting piece pre-buried on the cable tray 101;

step five: installing the jack 108, arranging the jack 108 on the bottom plate between the horizontal steel pipes 109 through screws, enabling the piston end of the jack 108 to act on the top plate on the truss type reaction frame 107 at the moment, pushing the truss type reaction frame 107 by the jack 108, transferring reverse acting force downwards to pre-press the arch-shaped support, and controlling the reading of the jack 108 to load step by step and accurately controlling the pre-applied force in the pre-pressing process. After the pre-pressing is finished, the triangular truss type counter-force frame 107 is detached and can be used as a temporary transverse strut for the subsequent construction of the cable tower 101.

It should be noted that, because the height of the arched bracket after prepressing may not reach the design elevation when the lower beam is poured, the elevation of the template can be raised by paving steel plates on the bracket.

When the lower tower column is higher, the utility model can effectively reduce the construction cost and construction period of the temporary support for lower beam construction; the truss type tie bars 103 balance the horizontal thrust of the steel pipe arch ribs 104 to the cable tower 101, so that the root of the lower tower column can be effectively prevented from having a larger bending moment value; the use of the jack 108 for the bracket pre-compaction accelerates the construction progress and allows accurate control of the pre-compaction to the set pre-compaction load.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (10)

1. The utility model provides a take super high cable tower bottom end rail self-balancing arch support of pre-compaction which characterized in that includes: the cable tower comprises anchor clamps (102), truss type tie bars (103) and arch brackets, wherein the two anchor clamps (102) are arranged on the cable tower (101), and the truss type tie bars (103) are connected between the anchor clamps (102) and form a whole with the anchor clamps (102);

the arch support comprises steel pipe arch ribs (104), steel pipe upright posts (105), transverse connecting rods (106) and horizontal steel pipes (109), the steel pipe arch ribs (104) are arch pipes, and arch feet of the steel pipe arch ribs (104) are respectively connected to the two anchor ears (102);

the steel pipe arch rib structure further comprises a truss type counterforce frame (107), wherein the truss type counterforce frame (107) is connected to the cable tower (101) and is positioned above the steel pipe arch rib (104), and the truss type counterforce frame (107) and the horizontal steel pipe (109) are separated by a certain height;

a jack (108) is arranged between the truss type reaction frame (107) and the horizontal steel pipe (109), and the arch-shaped bracket is pressed down by the jack (108).

2. The self-balancing arch support with the pre-pressed ultra-high cable tower lower beam according to claim 1, wherein the anchor ear (102) is divided into two identical half-ear bodies, a quadrangular frustum cavity penetrating through the anchor ear (102) is formed inside the anchor ear (102), connecting plates (112) are connected to the inner side surfaces of two sides of the half-ear bodies, and the two half-ear bodies are connected through the connecting plates (112) to form a whole and are fixed on the cable tower (101).

3. The self-balancing arch support with the pre-pressed ultra-high cable tower lower beam according to claim 2, wherein the upper surface of the first outer side surface of the half hoop body is connected with a right-angle triangular prism, the bottom surface of the right-angle triangular prism is connected with the upper surface of the half hoop body, the inclined surface of the right-angle triangular prism faces the steel pipe arch rib (104), and the arch foot of the steel pipe arch rib (104) is connected to the inclined surface of the right-angle triangular prism.

4. The self-balancing arch support with the pre-pressed ultra-high cable tower lower beam according to claim 2, wherein steel strands (111) are wound on the outer side of the anchor ear (102), and the two half hoop bodies are pre-tightened through the steel strands (111).

5. The self-balancing arch support with the pre-pressing ultra-high cable tower lower beam according to claim 4, wherein each corner of the outer side surface of the hoop (102) is provided with a hollow elbow, one end of the steel strand (111) sequentially penetrates through four hollow elbows positioned at the same height, and two ends of the steel strand (111) are screwed together to pre-tighten the two half hoop bodies.

6. The self-balancing arch support with the pre-pressing ultra-high cable tower lower beam according to claim 1, wherein two steel pipe arch ribs (104) are arranged, a plurality of transverse connecting rods (106) are connected between the two steel pipe arch ribs (104), a plurality of steel pipe columns (105) are connected to the steel pipe arch ribs (104) along the outline of the steel pipe arch ribs (104), the upper surfaces of the steel pipe columns (105) are in the same horizontal plane, and the horizontal steel pipes (109) are connected to the upper surfaces of the steel pipe columns (105).

7. The self-balancing arch support with the pre-pressed ultra-high cable tower lower beam according to claim 6, wherein the truss type reaction frame (107) comprises three reaction steel pipes distributed in a triangular shape, a cross brace is welded between the three reaction steel pipes, a plurality of top plates are welded between two reaction steel pipes at the bottom, a plurality of bottom plates are welded between the horizontal steel pipes (109), the jack (108) is fixed on the bottom plates, and a piston end of the jack (108) acts on the top plates.

8. The self-balancing arch support with the pre-pressed ultra-high cable tower lower beam according to claim 7, wherein two ends of the truss type reaction frame (107) are fixed on the cable tower (101) through connecting pieces pre-buried on the cable tower (101).

9. A self-balancing arch support with pre-pressed ultra-high cable tower bottom beam according to claim 3, wherein the inclined surface of the right-angle triangular prism facing the steel pipe arch rib (104) is provided with a second welding hole for inserting the steel pipe arch rib (104), and the steel pipe arch rib (104) is welded with the half hoop body along the edge of the second welding hole.

10. The self-balancing arch support for a lower beam of a super-high cable tower with pre-compression according to any one of claims 1-9, wherein a first welding hole for inserting the truss type tie bar (103) is formed on the side surface of the anchor ear (102) facing the truss type tie bar (103), and the truss type tie bar (103) and the anchor ear (102) are welded along the edge of the first welding hole.

Images