CN-116575687-B - Method for erecting attached lifting scaffold

CN116575687BCN 116575687 BCN116575687 BCN 116575687BCN-116575687-B

Abstract

The invention relates to the field of attached lifting scaffolds and discloses an attached lifting scaffold erecting method which comprises the following steps of firstly, preparing a plurality of vertical rods and pavement plates, erecting a bracket platform and horizontally adjusting; step two, paving a bottom pavement plate on a bracket platform, wherein the bottom pavement plate comprises a bottom suspension bridge plate and a bottom fixing plate, the bottom suspension bridge plate is hinged with the bottom fixing plate, step three, installing a vertical rod, the bottom of the vertical rod is connected with the bottom pavement plate through bolts, a temporary supporting piece is used for the vertical rod to ensure that the vertical rod is perpendicular to the bottom pavement plate, step four, installing a suspension bridge mechanism of a second layer on the vertical rod, and the problem that when the length of the suspension bridge plate is too long, the suspension bridge plate is difficult to pull up through a steel wire rope is solved.

Inventors

LUO HUA
WANG XIAOCHUAN
Lei Xiangyun
LUO CHUAN
LIU QIANG
CHEN KAILEI
LI YINGTAO
Tang Shuhang
HU TAO

Assignees

重庆建工集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20230524

Claims (7)

1. The method for erecting the attached lifting scaffold is characterized by comprising the following steps of: Step one, preparing a plurality of vertical rods and pavement plates, erecting a bracket platform and horizontally adjusting; Step two, paving a bottom pavement plate on the bracket platform, wherein the bottom pavement plate comprises a bottom bridge hanging plate and a bottom fixing plate, and the bottom bridge hanging plate is hinged with the bottom fixing plate; Step three, installing a vertical rod, wherein the bottom of the vertical rod is connected with a bottom pavement plate through bolts, and the vertical rod is vertical to the bottom pavement plate through a temporary supporting piece; Step four, installing a second-layer suspension bridge mechanism on the vertical rod, wherein the suspension bridge mechanism comprises two suspension bridge units which are symmetrically arranged, each suspension bridge unit comprises a first steel wire rope, a limiting piece, a fixed connecting plate, a first suspension bridge plate and a second suspension bridge plate which are sequentially hinged, the symmetrical shafts of the two suspension bridge units are far from or near to the fixed connecting plate, the first suspension bridge plates and the second suspension bridge plates, the end parts of the two symmetrically arranged second suspension bridge plates are detachably connected, the fixed connecting plate is fixedly connected with the vertical rod, the first steel wire rope is connected with one end of the vertical rod, which is close to the second suspension bridge plate, the limiting piece can limit the relative rotation of the first suspension bridge plate and the second suspension bridge plate, and the sum of the lengths of the first suspension bridge plate and the second suspension bridge plate is equal to the length of the bottom suspension bridge plate; Step five, repeating the step four, and continuously installing a plurality of layers of suspension bridge mechanisms; step six, installing lifting equipment, performing test running on the attached lifting scaffold, and checking the stability of each connecting position of the attached lifting scaffold; The bridge hanging unit further comprises a plurality of connecting pieces, wherein the fixed connecting plates, the first bridge hanging plates and the second bridge hanging plates are abutted tightly in the length direction, and the connecting pieces are connected to the side surfaces of the fixed connecting plates, the first bridge hanging plates and the second bridge hanging plates through bolts so as to realize the connection of adjacent plate bodies; the first step is to prepare a second steel wire rope, a pull ring is arranged on the side surface of one end, close to the second suspension bridge, of the first suspension bridge, and the pull ring can be connected with the second steel wire rope; The bottom hangs bridge plate end connection and has third wire rope, and third wire rope upper end and the pull ring of the first bridge plate that hangs of last floor's bridge hanging mechanism are connected, and after the first bridge plate was hung in first wire rope pull of last floor, bottom hangs bridge plate top and is located between the first bridge plate that hangs of last floor and the second bridge plate that hangs.
2. The method of claim 1, wherein the hinge assembly is disposed at a hinge position of the first bridge crane plate and the second bridge crane plate, the hinge assembly comprises a first ear plate and a second ear plate, the first ear plate is fixed on the first bridge crane plate, the second ear plate is fixed on the second bridge crane plate, the limiting member is a connecting bolt, the connecting bolt comprises a smooth section and a threaded section, when the smooth section passes through the first ear plate and the second ear plate, the first bridge crane plate and the second bridge crane plate are hinged, and when the threaded section passes through and is in threaded connection with the first ear plate and the second ear plate, the first bridge crane plate and the second bridge crane plate are fixedly connected.
3. The method of claim 1, wherein the fixed connection plate is horizontally provided with a chute, the limiting member is a supporting rod, the supporting rod is slidably connected with the chute, and the supporting rod can provide upward supporting force below the first suspension bridge plate and the second suspension bridge plate after sliding out of the chute.
4. The method of building an attached lifting scaffold according to claim 3, wherein the end portions of the support rods are convex arc surfaces, the lower surface of the second lifting bridge plate is concave arc surfaces, and when the second lifting bridge plate is placed horizontally, the end portions of the support rods can be in contact with the lower surface of the second lifting bridge plate.
5. The method of building an attached lifting scaffold according to claim 1, wherein in the fifth step, after the installation of the plurality of layers of lifting bridge mechanisms is completed, the upper layer of travelling plate mechanisms are continuously installed, the upper layer of travelling plate mechanisms are positioned above the lifting bridge mechanisms, the vertical rods comprise mid-span vertical rods, the mid-span vertical rods are positioned between the tower crane attaching arms, the upper parts of the mid-span vertical rods are fixedly connected with the upper layer of travelling plate mechanisms, and the lower parts of the mid-span vertical rods are detachably connected with the second lifting bridge plates.
6. The method of claim 5, wherein the upper deck structure comprises a common deck, the poles further comprise cross-end poles, the cross-end poles vertically connect all the layers of fixed connection plates, bottom fixed plates and the common deck, horizontal truss units are arranged between the different layers of common deck, and the truss units are fixed on the cross-center poles and the cross-end poles.
7. The method of claim 6, wherein an inclined strut is further provided in the first step, the inclined strut connecting the common pavement slab and the midspan upright.

Description

Method for erecting attached lifting scaffold Technical Field The invention relates to the field of attached lifting scaffolds, in particular to a method for erecting an attached lifting scaffold. Background In the process of erecting the attached lifting scaffold, in order to ensure the smooth operation of the later stage frame body, a movable pavement plate (a lifting bridge plate) and a fixed connecting plate are arranged at the position of the tower crane attached arm and the frame body. Before the attached lifting scaffold is lifted, an operator pulls two first steel wires, so that two lifting bridge plates are respectively turned over and pulled up, the two lifting bridge plates are turned over and opened to two sides, the lifting bridge plates are bound and fixed with the vertical rods by using iron wires after standing up, so that collision between the lifting bridge plates and the tower crane attaching arms is avoided, the lifting bridge plates are restored to be horizontal after being lifted in place and are fixed by using bolts, and deformation of a frame body caused by long-time disconnection of the walking plate at the position is avoided. According to the technical regulations of safety of attached lifting scaffolds for building construction, the step distance of a frame body is not more than 2m, namely, the difference of the heights of an upper layer of pavement slab and a lower layer of pavement slab is not more than 2m, but in part cases, the distance between a tower crane and a main structure of a building is limited by the construction condition, the length of the lifting slab needs to be capable of crossing three attaching arms of the tower crane at the same time, the step distance of the frame body is limited, the connecting point of a first steel wire rope and a crossing end upright post is not more than 2m relative to the height of the lifting slab, the longer the length of the lifting slab is, the heavier the lifting slab is, the smaller the included angle between the first steel wire rope and the lifting slab is, the force of a worker pulling the lifting slab in the vertical direction is less, the lifting slab is difficult to pull the lifting slab by the first steel wire rope, when the length of the lifting slab exceeds 2m, the lifting slab cannot be erected, or else the lifting slab collides with the pavement slab on the upper layer, and therefore the lifting slab can tilt towards one side close to the attaching arm, and the lifting slab falls back to the attaching arm of the tower crane under the action of gravity very easily. Disclosure of Invention The invention aims to provide an attaching type lifting scaffold erecting method which aims to solve the problem that when the length of a lifting bridge plate is too long, a steel wire rope is difficult to pull up. In order to achieve the aim, the invention adopts the following technical scheme that the method for erecting the attached lifting scaffold comprises the following steps: Step one, preparing a plurality of vertical rods and pavement plates, erecting a bracket platform and horizontally adjusting; Step two, paving a bottom pavement plate on the bracket platform, wherein the bottom pavement plate comprises a bottom bridge hanging plate and a bottom fixing plate, and the bottom bridge hanging plate is hinged with the bottom fixing plate; Step three, installing a vertical rod, wherein the bottom of the vertical rod is connected with a bottom pavement plate through bolts, and the vertical rod is vertical to the bottom pavement plate through a temporary supporting piece; Step four, installing a second-layer suspension bridge mechanism on the vertical rod, wherein the suspension bridge mechanism comprises two suspension bridge units which are symmetrically arranged, each suspension bridge unit comprises a first steel wire rope, a limiting piece, a fixed connecting plate, a first suspension bridge plate and a second suspension bridge plate which are sequentially hinged, the symmetrical shafts of the two suspension bridge units are far from or near to the fixed connecting plate, the first suspension bridge plates and the second suspension bridge plates, the end parts of the two symmetrically arranged second suspension bridge plates are detachably connected, the fixed connecting plate is fixedly connected with the vertical rod, the first steel wire rope is connected with one end of the vertical rod, which is close to the second suspension bridge plate, the limiting piece can limit the relative rotation of the first suspension bridge plate and the second suspension bridge plate, and the sum of the lengths of the first suspension bridge plate and the second suspension bridge plate is equal to the length of the bottom suspension bridge plate; Step five, repeating the step four, and continuously installing a plurality of layers of suspension bridge mechanisms; And step six, installing lifting equipment, performing test running on the att