阅读说明：本技术 一种高层封闭核心筒内钢梁施工的方法 (Method for constructing steel beam in high-rise closed core cylinder ) 是由 周凡 蒋国明 许克 叶光贵 毛翼东 于 2021-07-31 设计创作，主要内容包括：本发明涉及建筑施工技术领域,具体是一种高层封闭核心筒内钢梁施工的方法,其特征是：包括卷扬机布置；卷扬机吊点及吊篮布置；吊篮及卷扬机吊点固定方式；每层电梯钢梁堆放于核心筒旁该楼层位置楼板上,安装时使用卷扬机牵引吊至核心筒电梯井内；卷扬机将钢梁吊运至安装位置；在吊篮上方用角钢及花纹钢板搭设简易防护棚；当核心筒顶部混凝土楼板不具备设置吊点及吊篮固定点要求,在核心筒中设置转换梁；钢梁安装完成。本发明提出了一种采用卷扬机及吊篮在封闭核心筒内高效、安全、连续安装钢梁的方法,解决了封闭核心筒内钢梁安装效率低下、安全隐患大等问题。(The invention relates to the technical field of building construction, in particular to a method for constructing a steel beam in a high-rise closed core cylinder, which is characterized by comprising the following steps of: comprising a winch arrangement; arranging hoisting points and hanging baskets of the winch; the hanging point fixing mode of the hanging basket and the winch; each layer of elevator steel beam is stacked on the floor slab at the floor position beside the core barrel, and is dragged and hung in the elevator shaft of the core barrel by using a winch during installation; hoisting the steel beam to a mounting position by a winch; a simple protective shed is erected above the hanging basket by using angle steel and a pattern steel plate; when the concrete floor at the top of the core barrel does not have the requirements of setting a lifting point and a hanging basket fixing point, a conversion beam is arranged in the core barrel; and finishing the installation of the steel beam. The invention provides a method for efficiently, safely and continuously installing steel beams in a closed core cylinder by adopting a winch and a hanging basket, and solves the problems of low efficiency, large potential safety hazard and the like of steel beam installation in the closed core cylinder.)

1. A method for constructing a steel beam in a high-rise closed core tube is characterized by comprising the following steps: comprises that

Step 1: plane arrangement of the winch: installing a plurality of elevator shafts at different positions through one winch, thereby arranging the position of the winch according to the position of the elevator shaft:

step 1.1, the winch is arranged at the vertical position of a floor, and the length of a steel wire rope released from a roller of a cigarette making machine can be reduced and the strand breakage probability of the steel wire rope is reduced at the position of 1-2 layers below the highest layer of the floor to be installed, and the winding of the upper steel wire rope and the lower steel wire rope of a hoisting point pulley can also be avoided;

step 1.2, the winches are arranged at positions close to the operating elevator shaft as far as possible on the floor plane, so that the operating points of the elevator shaft and the winches can be viewed as far as possible, and the operation personnel can conveniently inspect equipment and control operation;

step 1.3, the winding machine steel wire rope reduces roundabout and graceful rotation as much as possible, the number of pulleys is reduced, the tension of the steel wire rope can be reduced, and the possibility that the steel wire rope is broken due to the fact that the steel wire rope falls off from the pulleys is reduced;

step 1.4, the winch can be welded and fixed with the steel column according to the three principles, and can also be fixed on the concrete column by using a steel wire rope;

step 2, arranging hoisting machine hoisting points and hanging baskets, selecting the hoisting machine hoisting points according to the position of the core barrel and the horizontal position of a steel beam in the barrel, fixing the fixed points of pulleys at the tail end of a hoisting rope of the hoisting machine, and fixing the hoisting machine hoisting points and the hanging baskets on a concrete floor at the top of the core barrel, wherein the steel beam is positioned below the hoisting machine hoisting points;

step 3, reserving holes on a concrete floor at the top of the core barrel in a hanging basket and hoisting point fixing mode, erecting two 120 x 10 square steel pipes above the holes, wherein one square steel pipe is positioned above a hoisting point or a pulley at the tail end of the hoisting machine, and the other square steel pipe is positioned above the hanging basket, and the hoisting point of the hoisting machine and a steel wire rope of the hanging basket penetrate through the reserved holes of the concrete floor and are fixed with the 120 x 10 square steel pipes above the hoisting point by using rope clamps;

step 4, stacking each layer of elevator steel beams on the floor slab at the floor position beside the core barrel, and using a winch to hoist the elevator steel beams into the elevator shaft of the core barrel during installation;

step 5, hoisting the steel beam to a mounting position by using a winch, and standing an operator in the hanging basket to carry out steel beam mounting construction;

step 6, in order to prevent falling objects above the core barrel from hurting people, a simple protective shed is erected above the hanging basket by using angle steel and a pattern steel plate; in addition, in order to prevent the hanging basket from shaking in the core barrel along the horizontal direction, a horizontal support is additionally arranged on the side, close to the shear wall, of the hanging basket, and a roller is arranged at the end of the support;

step 7, when the concrete floor at the top of the core barrel does not have the requirements of setting a lifting point and a hanging basket fixing point, arranging a conversion beam in the core barrel;

and 8: and finishing the installation of the steel beam.

Technical Field

The invention relates to the technical field of building construction, in particular to a method for constructing a steel beam in a high-rise closed core cylinder.

Background

The building method that steel beams are arranged in a core tube of a high-rise building to serve as attachment points of elevator guide rails is common. The girder steel is located confined core section of thick bamboo elevator well, and level and vertical position do not have the attachment point, cause the girder steel installation comparatively difficult from this, mainly do: the device has the characteristics of no operation surface, incapability of using conventional hoisting equipment, high horizontal and vertical protection difficulty, high construction safety risk and the like.

At present, a common construction method is to set up a scaffold in a closed core cylinder for construction, set up the scaffold to provide a construction operation surface, and install the scaffold by using a winch or a chain block. When the method is used, a scaffold needs to be erected once on each floor or several floors, the scaffold is dismantled after the steel beams are installed, and the scaffold is erected on the next floor again. The scaffold in the closed core tube needs to be attached to a hole in the wall of the core tube, and the scaffold is mounted and dismounted, so that the workload is high, the construction progress is slow, and certain safety risks exist.

Disclosure of Invention

The invention aims to overcome the problems and provides a method for constructing a steel beam in a high-rise closed core cylinder.

In order to achieve the above object, the present invention is realized by:

a method for constructing steel beams in a high-rise closed core cylinder comprises

Step 1: plane arrangement of the winch: installing a plurality of elevator shafts at different positions through one winch, thereby arranging the position of the winch according to the position of the elevator shaft:

step 1.1, the winch is arranged at the vertical position of a floor, and the length of a steel wire rope released from a roller of a cigarette making machine can be reduced and the strand breakage probability of the steel wire rope is reduced at the position of 1-2 layers below the highest layer of the floor to be installed, and the winding of the upper steel wire rope and the lower steel wire rope of a hoisting point pulley can also be avoided;

step 1.2, the winches are arranged at positions close to the operating elevator shaft as far as possible on the floor plane, so that the operating points of the elevator shaft and the winches can be viewed as far as possible, and the operation personnel can conveniently inspect equipment and control operation;

step 1.3, the winding machine steel wire rope reduces roundabout and graceful rotation as much as possible, the number of pulleys is reduced, the tension of the steel wire rope can be reduced, and the possibility that the steel wire rope is broken due to the fact that the steel wire rope falls off from the pulleys is reduced;

step 1.4, the winch can be welded and fixed with the steel column according to the three principles, and can also be fixed on the concrete column by using a steel wire rope;

step 2, arranging hoisting machine hoisting points and hanging baskets, selecting the hoisting machine hoisting points according to the position of the core barrel and the horizontal position of a steel beam in the barrel, fixing the fixed points of pulleys at the tail end of a hoisting rope of the hoisting machine, and fixing the hoisting machine hoisting points and the hanging baskets on a concrete floor at the top of the core barrel, wherein the steel beam is positioned below the hoisting machine hoisting points;

step 3, reserving holes on a concrete floor at the top of the core barrel in a hanging basket and hoisting point fixing mode, erecting two 120 x 10 square steel pipes above the holes, wherein one square steel pipe is positioned above a hoisting point or a pulley at the tail end of the hoisting machine, and the other square steel pipe is positioned above the hanging basket, and the hoisting point of the hoisting machine and a steel wire rope of the hanging basket penetrate through the reserved holes of the concrete floor and are fixed with the 120 x 10 square steel pipes above the hoisting point by using rope clamps;

step 4, stacking each layer of elevator steel beams on the floor slab at the floor position beside the core barrel, and using a winch to hoist the elevator steel beams into the elevator shaft of the core barrel during installation;

step 5, hoisting the steel beam to a mounting position by using a winch, and standing an operator in the hanging basket to carry out steel beam mounting construction;

step 6, in order to prevent falling objects above the core barrel from hurting people, a simple protective shed is erected above the hanging basket by using angle steel and a pattern steel plate; in addition, in order to prevent the hanging basket from shaking in the core barrel along the horizontal direction, a horizontal support is additionally arranged on the side, close to the shear wall, of the hanging basket, and a roller is arranged at the end of the support;

step 7, when the concrete floor at the top of the core barrel does not have the requirements of setting a lifting point and a hanging basket fixing point, arranging a conversion beam in the core barrel;

and 8: and finishing the installation of the steel beam.

The invention provides a method for efficiently, safely and continuously installing steel beams in a closed core cylinder by adopting a winch and a hanging basket, solves the problems of low steel beam installation efficiency, large potential safety hazard and the like in the closed core cylinder, and has the advantages of strong practicability, high economical efficiency, high safety and wide application.

Drawings

Fig. 1 is a plan view of the steel beams of the elevator and the hoist in the core tube.

Fig. 2 is a core barrel hoistway top basket and hoist lifting point arrangement.

Fig. 3 is a sectional view A-A, in particular to a schematic view of a hoist hoisting elevator steel beam.

Fig. 4 is a sectional view B-B, in particular a vertical layout of the basket in the elevator shaft of the core barrel.

FIG. 5 is a schematic view of the A-node steel wire rope and the square steel pipe being fixed by the rope clamp.

FIG. 6 shows the spatial position relationship of the C-C section basket, the hoist and the steel beam.

Fig. 7 is a schematic view of horizontal limiting and anti-smashing measures of the hanging basket.

Fig. 8 is a schematic view of horizontal limiting and anti-smashing measures of the hanging basket.

FIG. 9 is a schematic view of a transfer beam above the core barrel.

FIG. 10 is a D-D sectional view showing a state where the steel beam is installed.

Detailed Description

The invention is further illustrated by the following specific examples.

As shown in figures 1-10, a method for constructing a steel beam in a high-rise closed core tube comprises

Step 1: plane arrangement of the winch: installing a plurality of elevator shafts at different positions through one winch, thereby arranging the position of the winch according to the position of the elevator shaft:

step 1.1, the winch is arranged at the vertical position of a floor, and the length of a steel wire rope released from a roller of a cigarette making machine can be reduced and the strand breakage probability of the steel wire rope is reduced at the position of 1-2 layers below the highest layer of the floor to be installed, and the winding of the upper steel wire rope and the lower steel wire rope of a hoisting point pulley can also be avoided;

step 1.2, the winches are arranged at positions close to the operating elevator shaft as far as possible on the floor plane, so that the operating points of the elevator shaft and the winches can be viewed as far as possible, and the operation personnel can conveniently inspect equipment and control operation;

step 1.3, the winding machine steel wire rope reduces roundabout and graceful rotation as much as possible, the number of pulleys is reduced, the tension of the steel wire rope can be reduced, and the possibility that the steel wire rope is broken due to the fact that the steel wire rope falls off from the pulleys is reduced;

step 1.4, the winch can be welded and fixed with the steel column according to the three principles, and can also be fixed on the concrete column by using a steel wire rope;

step 2, arranging hoisting machine hoisting points and hanging baskets, selecting the hoisting machine hoisting points according to the position of the core barrel and the horizontal position of a steel beam in the barrel, fixing the fixed points of pulleys at the tail end of a hoisting rope of the hoisting machine, and fixing the hoisting machine hoisting points and the hanging baskets on a concrete floor at the top of the core barrel, wherein the steel beam is positioned below the hoisting machine hoisting points;

step 3, reserving holes on a concrete floor at the top of the core barrel in a hanging basket and hoisting point fixing mode, erecting two 120 x 10 square steel pipes above the holes, wherein one square steel pipe is positioned above a hoisting point or a pulley at the tail end of the hoisting machine, and the other square steel pipe is positioned above the hanging basket, and the hoisting point of the hoisting machine and a steel wire rope of the hanging basket penetrate through the reserved holes of the concrete floor and are fixed with the 120 x 10 square steel pipes above the hoisting point by using rope clamps;

step 4, stacking each layer of elevator steel beams on the floor slab at the floor position beside the core barrel, and using a winch to hoist the elevator steel beams into the elevator shaft of the core barrel during installation;

step 5, hoisting the steel beam to a mounting position by using a winch, and standing an operator in the hanging basket to carry out steel beam mounting construction;

step 6, in order to prevent falling objects above the core barrel from hurting people, a simple protective shed is erected above the hanging basket by using angle steel and a pattern steel plate; in addition, in order to prevent the hanging basket from shaking in the core barrel along the horizontal direction, a horizontal support is additionally arranged on the side, close to the shear wall, of the hanging basket, and a roller is arranged at the end of the support;

step 7, when the concrete floor at the top of the core barrel does not have the requirements of setting a lifting point and a hanging basket fixing point, arranging a conversion beam in the core barrel;

and 8: and finishing the installation of the steel beam.

The invention provides a method for efficiently, safely and continuously installing steel beams in a closed core cylinder by adopting a winch and a hanging basket, solves the problems of low steel beam installation efficiency, large potential safety hazard and the like in the closed core cylinder, and has the advantages of strong practicability, high economical efficiency, high safety and wide application.