JP5940404B2 - Construction method of beam members - Google Patents

Description

  The present invention relates to a method for constructing a beam member constituting a roof portion.

  When constructing a structure, beams may be installed on the roof. However, in the case of a large-scale beam, there are various restrictions when installing the beam, and it may be difficult to install the beam.

  For example, in the field, there is no work space in the surroundings and there is no space for assembling the beam, and the installation place of the large crane for lifting the assembled beam is limited, and its lifting capacity and movable range are limited It may be a thing. Also, in the case of large and heavy beams, they must be divided into sizes that can be lifted by heavy equipment that can be installed, and installed while temporarily supported. Furthermore, in the case where a frame is built inside the structure, it is difficult to install a vent inside the structure because a beam is installed.

  On the other hand, as a roof frame method, the roof frame is assembled at an appropriate location such as on the work stage, and is moved horizontally on the lower structure, and then fixed at a predetermined position on the lower structure. There is something. Thereby, workability | operativity at the time of a roof frame can be improved.

  For example, in the method of Patent Document 1, a lower structure frame including a large number of pillars and a crane gutter is constructed in advance, and a box-shaped frame traveling body having wheels and a height adjustment mechanism is placed on the crane garter. Then, after the steel roof member is placed on the traveling body, it is jacked up and moved to a predetermined position, and then the traveling body is jacked down to fix the steel roof member to the lower structural frame.

  Further, in Patent Document 2, a traveling plate is previously laid on the upper girder beam of the lower structure, and the roof truss with the sliding plate is slid by the traveling plate and the sliding plate, and then moved laterally. A method is described in which the truss is jacked up to remove the traveling plate and the sliding plate, and the base plate of the roof truss is fixed to the girder beam of the lower structure.

  Furthermore, Patent Document 3 discloses a sliding construction method in which a roof frame is divided into a plurality of blocks, and the roof frame block assembled on the work stage is assembled while being sequentially moved along a running rail installed on the upper part of the lower structure. On the stage used for temporary construction, a method is shown in which the finishing work of the interior and exterior of the preceding block that has finished the steel work and the steel work of the succeeding block are performed simultaneously.

  Further, in Patent Document 4, a sliding member is attached to the lower surface of a large beam that has been lifted by a lifting mechanism, and a sliding track fixed on the opposing wall portion of the building is horizontally slid to provide a desired direction. A method for accurately setting a girder at a position is described.

  In addition, in Patent Document 5, when performing a construction method in which an assembled roof frame is laterally moved on the lower structure and installed at a predetermined position, the roof frame is moved to the lower part on both sides in the span direction of the roof frame. It is described that a moving beam extending in the direction is provided, and the moving beam is supported and moved by a rolling support device or the like installed on the lower structure at a predetermined interval in the roof frame moving direction.

Japanese Patent Publication No. 52-5770 Japanese Patent Publication No. 63-55569 Japanese Patent Publication No. 5-15869 Japanese Patent Laid-Open No. 6-129045 Japanese Patent Laid-Open No. 9-72004

  In such a conventional method, temporary materials that require installation at the time of roof construction and removal after the roof construction are used. However, this temporary material may be large-scale, the number of members may be increased, and installation and removal may take time, resulting in a long construction period.

  The present invention has been made in view of the above-mentioned problems, and provides a beam member erection method that can improve workability during roof framing, reduce temporary materials, can be easily removed, and shorten the construction period. With the goal.

The present invention for achieving the above-described object is a method of laying a beam member that constitutes a roof portion of a structure, and includes a step of constructing the beam member as a part of a work stage below a beam erection position; A step of constructing a new beam member on a work stage including the beam member as a part, a step of attaching the new beam member to the structure, and a beam member used for the work stage. And a step of attaching to the structure.

In the present invention, a work stage using a main beam member is used, and a new beam member is newly constructed there. And while attaching this beam member to a structure, the beam member utilized as a work stage after that is attached to a structure, and a roof part is constructed | assembled. Usually, the working stage is temporary and is removed at the end. However, in the present invention, since the permanent beam member is used as a part of the working stage as described above, the amount of temporary material is reduced. It can be removed easily, and the process for installing and removing temporary materials is shortened.
In addition, since beam members are constructed on the work stage and attached, the beam members can be constructed and attached with minimal venting from the bottom, and parallel construction of the roof frame and the building on the lower floor is possible. Become. Furthermore, work can be performed on a solid scaffold using the work stage, which helps prevent crashes and reduces disasters caused by falling objects.

  The structure preferably includes a crane garter, and the work stage is movable on the crane garter.

Thus, by moving the work stage using the permanent crane garter, the work stage can be moved without providing a temporary rail or the like separately.
If the work stage can be moved, for example, when a work crane is separately installed to construct a beam member, the beam member constructed within the reach of the work crane is moved outside the range to another position. It is possible to install or move the work stage to reach the work crane, and then build and attach the beam member. Therefore, when there is no space around the structure, the number of work cranes can be reduced, and even if the lifting capacity and movable range of the work crane are limited, it can be easily constructed. Combined with the structure of the stage, workability can be further enhanced.

When the beam member used for the new beam member and the work stage is attached to the structure, a space for carrying in the crane is provided between any two beam members, It is desirable to further include a step of carrying the crane from the space and placing it on the crane garter.
In this way, by providing a space between the beam members and using it for carrying in the crane, it is easy to place the permanent crane on the crane garter.

It is desirable that a sliding material is provided on each of the surface of the crane garter that contacts the working stage and the surface of the working stage that contacts the crane garter.
Thereby, the work stage can be slid and moved on the crane garter. Therefore, the work stage can be easily moved using a jack or the like.

A plurality of brackets projecting inward to attach the ends of the beam members are provided on the outer periphery of the structure along the moving direction of the working stage, and the moving direction of the working stage It is desirable that the protruding length of the bracket at one end along the length is longer than that of the other bracket.
When a bracket is provided on a structure for mounting a beam member, the beam member interferes with other brackets when the beam member to be mounted on the bracket at the end is moved on the work stage by adopting the above configuration. There is no longer to do.

When the beam member used for the work stage is attached to the structure, a sliding portion is provided at an end of the beam member, and the sliding portion is provided by a lifting portion provided at an upper portion of the outer peripheral portion of the structure. It is desirable to pull up while the structure is in contact with the structure.
In order to attach the beam member used for the working stage, it is necessary to pull it up. At this time, if a lifting portion is attached to the upper part of the structure body, the work can be easily performed. However, since the structure rotates inward due to the reaction force caused by lifting, this may hinder the lifting of the beam member. Therefore, a sliding part is provided at the end of the beam member as described above, thereby pushing the structure wide. The beam member can be easily pulled up by sliding on the structure.

  According to the present invention, it is possible to provide a beam member erection method that can improve workability during roof framing, reduce temporary construction materials, facilitate removal and shorten the construction period.

The figure which shows the structure 1 before constructing a beam member The figure which shows the position of lower structure 11 grade Diagram showing beam member installation method The figure which shows the slide stage 2 Diagram showing beam member installation method The figure shown about the bracket 15a The figure shown about attachment of beam member 31a Diagram showing beam member installation method Diagram showing beam member installation method Diagram showing beam member installation method Diagram showing beam member installation method The figure shown about attachment of beam member 31e Diagram showing beam member installation method Diagram showing beam member installation method

  Hereinafter, an embodiment of a beam member installation method of the present invention will be described with reference to the drawings.

(Structure 1 for laying beam members)
FIG. 1 is a view showing a structure 1 for laying beam members constituting a roof portion in the present embodiment. 1A and 1B are views of the side surface of the structure 1 as viewed from the directions of arrows A and B in FIG. FIG.1 (c) is the figure which looked at the structure 1 from the top. 2A to 2D show the positions of the lower structure 11 and the like along the lines A1-A1 ′, A2-A2 ′, B1-B1 ′, B2-B2 ′ in FIG. It is a figure.

  In this embodiment, the structure 1 is a turbine building of a thermal power plant, and the crane garter 13, the pillar 15, the beam 17, and the lower structure 11 are constructed in advance.

  The columns 15 are provided along the outer peripheral portion of the structure 1, and the beams 17 are bridged along the columns 15 in the horizontal direction.

  The lower structure 11 is a structural frame constructed in advance on the lower floor of the structure 1, and various facilities used in the thermal power plant are arranged. Of the lower floors shown in the figure, in the portion 12 where the lower structure 11 is not constructed, a turbine mount for arranging the turbine is constructed later.

  The crane garter 13 is a beam for movably supporting a crane for use in maintenance of a turbine or the like, and is also called a runway garter. The crane garter 13 is provided with a permanent rail (rail 13b described later) for moving the crane. The crane garter 13 is provided in parallel in the uppermost layer of the structure 1 along both opposing side surfaces of the structure 1.

  In the present embodiment, when the roof is constructed to the structure 1, the beam members constituting the roof portion are installed as shown below. This erection method will be described with reference to FIGS.

(Installation method of beam members)
(1. Construction of slide stage 2 and construction of beam member 31a)
As shown in FIG. 3, in this embodiment, first, the slide stage 2 is constructed so as to be bridged to the crane garters 13 on both sides below the beam erection position of the structure 1 (the upper end of the structure 1). 3A is a view of the structure 1 as viewed from above, and FIG. 3B is a view showing the positions of beam members and the like along the line CC ′ of FIG. 3A. The same applies to FIGS. 5, 8 to 11, 13, and 14.

  The slide stage 2 is constructed on one end side in the longitudinal direction of the crane garter 13 in the plane of the structure 1. When the slide stage 2 is constructed, the vent 4 is assembled in the structure 1 and used. After the slide stage 2 is constructed, the vent 4 is removed. Further, a work crane (not shown) is installed on the ground in the vicinity of the one end, and members necessary for the construction of the slide stage 2 are suspended using the work crane. Hereinafter, in the longitudinal direction of the crane garter 13, the one end side (lower side in FIG. 3A) is referred to as the front side, and the other end side (upper side in FIG. 3A) is referred to as the back side. To do.

  With reference to FIG. 4A, the slide stage 2 will be described. The slide stage 2 is a work stage for performing beam member assembly work and the like, and as shown in the figure, includes a slide table 21, a beam member 31e, a work table 24, and the like.

  The slide table 21 is provided below the slide stage 2. The slide table 21 includes a base 211 and a base 213.

  The base 211 is a plate material provided so as to span the crane garters 13 on both sides along the beam span direction (shown in the left-right direction in FIG. 3A). Bases 213 are provided at both ends of the base 211 in the beam span direction.

  The base 213 is a portion that slides on the crane garter 13. FIG. 4B is a view of the base 213 viewed from the direction indicated by the arrow D in FIG.

  As shown in the drawing, sliding materials 213b and 13a are provided on the surface of the base 213 that contacts the crane garter 13 and the surface of the crane garter 13 that contacts the base 213, respectively. For example, a Teflon (registered trademark) plate can be used as the sliding member 213b, and a stainless plate can be used as the sliding member 13a. However, the sliding members 213b and 13a are not limited to these, and any sliding material may be used as long as it has a small frictional resistance and can slide on each other.

  The slide stage 2 moves by pulling it using a jack 215 (see FIG. 4A) attached to the crane garter 13 at the front or pushing it using a jack attached to the crane garter 13 at the rear. At this time, the slide stage 2 slides on the crane garter 13 by the sliding members 213b and 13a.

  An overhang portion 213 a is provided outside the base portion 213. The overhang portion 213a has a bent portion 213c that is bent downwardly into a hook shape. In any one of the base portions 213 on both sides in the beam span direction, the bent portion 213c comes into contact with the side surface of the crane garter 13, whereby the movement of the slide stage 2 in the beam span direction is restricted, and the base portion 213 is moved from the crane garter 13. It can be prevented from coming off.

  A beam member 31 e is provided on the slide table 21. The beam member 31e is constructed by assembling on the base 211 after constructing the slide base 21. The beam member 31e is attached to the structure 1 in a process to be described later. In this embodiment, the beam member 31e is previously constructed on the slide table 21 as a part of the slide stage 2.

  A work table 24 is provided on the beam member 31e. The work table 24 is constructed on the beam member 31e after it is constructed. The work table 24 is provided for assembling and building a new beam member above the slide stage 2, and is configured by stacking a plurality of receiving plates 241. Thereby, the height which assembles a beam member is adjusted so that the attachment height of a beam member may be approached. A jack 243 is provided below the upper receiving plate 241.

  In addition to the above, the slide stage 2 is provided with handrails and protection nets (not shown) to ensure the safety of the operator and prevent the tool from dropping.

  After the slide table 21, the beam member 31e, and the work table 24 are constructed in this way to form the slide stage 2, a new beam member 31a is formed on the slide stage 2 as shown in FIG. Assemble and build.

(2. Movement of slide stage 2 and attachment of beam member 31a)
Next, as shown in FIG. 5, the slide stage 2 is slid back along the crane garter 13, and the beam member 31a is moved to the erection position at the end. This position is outside the movable range of the working crane.

  Here, as shown in FIG. 6, on both opposing side surfaces of the structure 1, a plurality of pillars 15 along the longitudinal direction of the crane garter 13 are provided with brackets 15 a for attaching beam members, respectively. .

  These brackets 15a protrude inward of the plane of the structure 1, but the length of the protrusions at the back end along the crane garter 13 is longer than the other brackets 15a. The beam member 31a is constructed with a length corresponding to the distance L between the brackets 15a having a long protruding length.

  On the other hand, since the protruding length of the other bracket 15a is short, when the beam member 31a placed on the slide stage 2 moves to the back as indicated by the arrow F, the end of the beam member 31a is There is no interference with the other bracket 15a.

  After the slide stage 2 is moved to the erection position of the beam member 31 a in this way, the beam member 31 a is attached to the column 15. With reference to FIG. 7, attachment of the beam member 31a will be described.

  As shown in FIG. 7A, in this embodiment, the pillar 15 has a structure in which an upper pillar 151 provided with a bracket 15a is attached to the upper end of the lower pillar 153 using a construction jig (not shown). It has become.

  As shown in FIG. 7B, when the beam member 31a is attached, a part of the construction jig is loosened so that the upper column 151 is slightly inclined outward. In this state, the slide stage 2 described above is moved, and the beam member 31a is arranged in a state in which a gap 51 is secured between the end portion and the bracket 15a. Thereafter, the beam member 31a is slightly lifted by the jack 243 (see FIG. 4A) of the slide stage 2 in accordance with the mounting position.

  Thereafter, as shown in FIG. 7C, the inclination of the upper column 151 is restored, the upper column 151 and the lower column 153 are joined by welding or the like, and the bracket 15a and the end of the beam member 31a are joined. . In this way, both ends of the beam member 31a are attached to the brackets 15a on both sides. Thereafter, necessary work such as laying a deck plate (not shown) on the upper portion of the beam member 31a is performed.

  In addition, the beam member 31a may not be attached to the bracket 15a as described above, but may be attached to the beams 17 on both sides of the structure 1. In this case, for example, the extension member may be used to extend the length of the beam member 31a in the beam span direction to match the distance between the beams 17 on both sides, and both ends may be attached to the beams 17 on both sides.

  Thus, when the installation position of the beam member is outside the movable range of the work crane, the beam member is constructed on the slide stage 2 within the movable range of the work crane, and then the slide stage 2 is moved to the installation position. It can be moved and the beam member can be attached.

(3. Construction and installation of beam members 31b to 31d)
After laying the beam member 31a as described above, the slide stage 2 is moved to the near side as shown in FIG. 8, and the beam member 31b is constructed on the slide stage 2 using the work crane or the like. The beam member 31 b is attached to the structure 1.

  Subsequently, as shown in FIG. 9, the slide stage 2 is moved to the installation position of the next beam member adjacent to the beam member 31b, and the beam member 31c is constructed on the slide stage 2 in the same procedure as described above. Attach to the structure 1.

  Thereafter, as shown in FIG. 10, the slide stage 2 is moved to the installation position of the next beam member at the end on the near side, and the beam member 31d is constructed and attached to the structure 1 in the same procedure.

  In addition, after attaching each beam member 31b-31d, necessary work, such as laying a deck plate, is carried out like the above. Further, a space used for carrying in a crane 19 described later is provided between the beam member 31b and the beam member 31d.

  In the present embodiment, the installation positions of the beam members 31b to 31d are within the movable range of the work crane. In this case, after the slide stage 2 is moved to the installation position as described above, a necessary member is suspended using the work crane to construct an assembled beam member, and this is attached to the structure 1. Can do.

(4. Mounting of beam member 31e, etc.)
After the beam members 31a to 31d are installed as described above, the slide stage 2 is moved to the installation position of the next beam member between the beam member 31a and the beam member 31c as shown in FIG. After that, the operation of attaching the beam member 31e used as the slide stage 2 to the structure 1 is started.

  When the beam member 31e is attached, the work table 24 (see FIG. 4A) of the slide stage 2 is first disassembled and removed, and as shown in FIG. Install.

  In the lifting portion 61, for example, the beam member 31e is lifted by a center hole jack. The center hole jack pulls up a PC steel rod passed through the center of the jack body by the jack body, and can attach one end of the PC steel rod to the beam member 31e and lift it. However, the present invention is not limited to this, and various mechanisms can be used as long as the beam member 31e can be lifted.

  Next, as shown in FIG. 12B, the sliding portion 63 and the jack 64 are attached to the end of the beam member 31e, and the beam member 31e is pulled up. As the sliding portion 63, for example, a chill tank (registered trademark) that slides on an object by rotation of a roller can be used, but the invention is not limited thereto.

  When pulling up the beam member 31e, a reaction force accompanying the pulling up of the beam member 31e is applied to the column 15 from the lifting portion 61. Thereby, as shown in the figure, the column 15 is slightly rotated inward, and the bracket 15a is moved inward. Therefore, this may interfere with the lifting of the beam member 31e.

  However, in this embodiment, since the sliding part 63 is attached to the end part of the beam member 31e, the beam member 31e is pulled up with the sliding part 63 in contact with the bracket 15a as shown in FIG. be able to. At this time, the jack 64 disposed between the sliding portion 63 and the beam member 31e is used, and the sliding portion 63 moves upward while sliding on the bracket 15a while spreading the column 15 outward as indicated by an arrow G. To do. Accordingly, the lifting of the beam member 31e is not hindered.

  In this way, the beam member 31e is pulled up, and the beam member 31e is attached to the bracket 15a. Thereafter, necessary work such as laying a deck plate is performed in the same manner as described above.

  After the beam member 31e is installed, the remaining slide base 21 (see FIG. 4A) of the slide stage 2 is disassembled and removed, and the sliding member 13a on the crane garter 13 (see FIG. 4B) is removed. As shown in FIG. 13, a rail 13 b is installed on the crane garter 13. And the crane 19 of the main construction used in the turbine building which consists of the beam material 19b for moving the lifting device 19a and the lifting device 19a to a roof frame direction (left-right direction of Fig.13 (a)) is used as the beam member 31b, It suspends and carries in between 31d, and installs both ends of the girder 19b on the rail 13b on the crane garter 13. Thereby, the crane 19 becomes movable along the rail 13b of the crane garter 13.

  Finally, as shown in FIG. 14, the small beam members 33a, 33b, and 33c are bridged between the beam members 31d and 31b, the beam members 31c and 31e, and the beam members 31e and 31a, respectively. After performing necessary operations such as laying deck plates on the beam members 33a to 33c as described above, concrete is placed on the beam members 31a to 31e and beam members 33a to 33c. The roof part of the structure 1 is constructed.

  Since the above-mentioned roof frame work is performed with minimal construction of vents, etc., it can be performed in parallel with the frame construction work on the lower floor of the structure 1. For example, in the portion 12 (see FIG. 1) where the lower structure 11 is not constructed, a turbine mount for arranging the turbine is constructed, and this and the roof frame work can be performed in parallel. If the upper portion of this portion 12 is covered with a plate material or the like, it will not be damaged even if a tool or the like falls due to roof construction work or the like.

As described above, according to the present embodiment, another beam member 31a to 31d is newly constructed using the slide stage 2 using the permanent beam member 31e. And while attaching these beam members 31a-31d to the structure 1, the beam member 31e utilized for the slide stage 2 is attached to the structure 1 after that, and a roof part is constructed | assembled. Usually, the slide stage 2 is temporary and is finally removed. However, in the present invention, since the permanent beam member 31e is used as a part of the slide stage 2 as described above, the amount of temporary material is reduced. It can be reduced and removal is facilitated, and the process related to installation and removal of temporary materials is shortened.
Further, since the beam members 31a to 31d are constructed on the slide stage 2 and installed, the beam members 31a to 31d can be constructed and installed with a minimum amount of venting from below. Parallel construction work is possible. Furthermore, since the work can be performed on a solid scaffold by utilizing the slide stage 2, it is possible to prevent a fall and to reduce a disaster caused by a falling object.

Moreover, in this embodiment, the slide stage 2 can be moved without providing a temporary rail etc. separately by moving the slide stage 2 using the crane gutter 13 of permanent installation.
When the slide stage 2 can be moved in this way, for example, the beam member 31a constructed within the reach of the work crane is moved outside the range and attached to another position, or the slide stage 2 is moved to the reach of the work crane. The beam members 31b to 31d can be constructed and attached by moving them. Therefore, when there is no work space around the structure 1, the number of work cranes can be reduced, and even if the lifting capacity and movable range of the work crane are limited, the construction can be easily performed. The workability can be further enhanced in combination with the configuration using the main beam member 31e. However, it is not restricted to this, It is also possible to move by means other than the crane garter 13.

  Moreover, in this embodiment, since space is provided between the beam members 31b and 31d and this is used for carrying in of the crane 19, arrangement | positioning of the crane 19 on the crane garter 13 becomes easy.

  Further, since the slide stage 2 and the crane garter 13 are provided with the sliding members 213b and 13a, respectively, the slide stage 2 can be slid and moved on the crane garter 13. Accordingly, the slide stage 2 can be easily moved using the jack 215 or the like.

  Furthermore, in this embodiment, although the bracket 15a is provided in the column 15 for beam member attachment, the protrusion length of the bracket 15a in the back end along the crane garter 13 is longer than the other brackets 15a. doing. Accordingly, when the beam member 31a attached to the bracket 15a at the end is moved by the slide stage 2, the beam member 31a does not interfere with the other bracket 15a.

  Moreover, in this embodiment, in order to attach the beam member 31e used for the slide stage 2, the lifting part 61 is attached to the upper part of the pillar 15, and the beam member 31e is pulled up. Thus, the work can be easily performed, but at this time, the column 15 is rotated inward by the reaction force accompanying the lifting, and the bracket 15a may hinder the lifting of the beam member 31e. However, in this embodiment, the sliding member 63 is provided at the end of the beam member 31e, and the beam member 31e can be easily pulled up by sliding on the bracket 15a while pushing and spreading the column 15.

As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not limited to embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.
For example, the structure to which the beam member installation method of the present invention is applied is not limited to the turbine building as described in the embodiment. The present invention can be applied to various other structures, and is particularly effective when a large-scale beam needs to be installed.

1: Structure 2: Slide stage 13: Crane garter 13a, 213b: Sliding material 15: Pillar 15a: Bracket 17: Beam 19: Crane 21: Slide table 24: Work tables 31a to 31e, 33a to 33c: Beam member 61 : Lifting part 63: Sliding part

Claims (6)

A construction method of a beam member constituting a roof portion of a structure,
Constructing the beam member as a part of the work stage below the beam installation position;
Building a new beam member on a working stage including the beam member as a part ;
Attaching the new beam member to the structure;
Attaching the beam member used in the working stage to the structure;
A method for constructing a beam member, characterized by comprising: The structure has a crane garter,
2. The beam member erection method according to claim 1, wherein the working stage is movable on the crane garter. When the beam member used for the new beam member and the work stage is attached to the structure, a space for carrying in the crane is provided between any two beam members,
The beam member erection method according to claim 2, further comprising a step of carrying the crane from the space and placing the crane on the crane garter.   The sliding material is provided in each of the surface which touches the said work stage of the said crane garter, and the surface which touches the said crane garter of the said work stage, Either of Claim 2 or Claim 3 characterized by the above-mentioned. The beam member erection method described in 1. A plurality of brackets projecting inward to attach the ends of the beam members are provided on the outer periphery of the structure along the moving direction of the working stage,
The beam member according to any one of claims 2 to 4, wherein a protruding length of the bracket at one end along the moving direction of the working stage is longer than the other bracket. Construction method.   When the beam member used for the work stage is attached to the structure, a sliding portion is provided at an end of the beam member, and the sliding portion is provided by a lifting portion provided at an upper portion of the outer peripheral portion of the structure. 6. The beam member erection method according to any one of claims 1 to 5, wherein the beam member is pulled up while being in contact with the structure.

Images