A construction method for initial installation height of tower groups

Abstract

The present invention discloses a construction method for the initial installation height of a group of towers, comprising step 1: automatically calculating the planning order of tower cranes according to the layout diagram of the group of towers; step 2: installing and lifting tower cranes in sequence according to the planning order of tower cranes, and taking integers according to the result of the formula N=[(H‑L0‑H0) / L]+1 to calculate the number of standard section installation sections of each tower crane in sequence to determine the lifting height of each tower crane; step 3: judging whether the safety height is met between the currently lifted tower crane and other lifted tower cranes; if so, the lifting height of the current tower crane is the initial installation height; if not, increasing the number of standard sections of the tower crane to lift the installation height of the installed tower cranes that interfere with the current tower crane height, until the height of the lifted installed tower crane meets the safety height with other installed tower cranes, and then determining it as the initial installation height. The present invention can scientifically and reasonably optimize the initial installation height of the group of towers, and improve the efficiency of the planning and compilation of the group of towers.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a construction method for initial installation height of a group of towers. Background Art

[0002] In the construction of large-scale building projects, tower cranes are indispensable lifting equipment. As the height of buildings continues to increase, multiple tower cranes are usually arranged on the construction site to form a tower crane group, also known as a tower group, to meet the construction needs of different areas. However, there are many restrictions in the initial installation planning of each tower crane in the tower group, such as interference between tower cranes, interference between tower cranes and buildings, and safety height problems between tower cranes, which makes the initial installation method of each tower crane in the tower group complicated. The initial installation method of the tower group refers to the tower crane installation method in the engineering stage after the building is planned but before construction. The existing initial installation method of the tower group usually relies on manual experience, lacks systematicity and scientificity, and the preparation process is time-consuming and ineffective. The interference between tower cranes and the interference between tower cranes and buildings are difficult to solve effectively and cannot be optimized. There is a lack of a method that can automatically calculate the optimal installation height solution for the tower group. Summary of the invention

[0003] The purpose of the present invention is to provide a method for constructing the initial installation height of a group of towers, so as to solve the problem of how to scientifically and reasonably optimize the initial installation height of the group of towers, to avoid interference between tower cranes and interference between tower cranes and buildings, and to improve the planning and compilation efficiency of the group of towers.

[0004] In order to solve the above technical problems, the present invention provides a method for constructing the initial installation height of a group of towers, comprising:

[0005] Step 1: Automatically calculate the tower crane planning order according to the tower group layout diagram;

[0006] Step 2: Install and lift the tower cranes in sequence according to the tower crane planning order, and calculate the number of standard installation sections of each tower crane in sequence according to the result of formula (1) to determine the lifting height of each tower crane;

[0007] N = [(H-L0-H0) / L] + 1 (1);

[0008] Among them, N is the number of standard section installation sections, H is the minimum working clearance height of the tower crane, L0 is the installed length of the tower crane foundation section, H0 is the tower crane foundation elevation, and L is the standard section length;

[0009] Step 3: Determine whether the currently lifted tower crane meets the safety height with other lifted tower cranes; if so, the lifting height of the current tower crane is the initial installation height; if not, increase the number of standard sections of the tower crane to raise the installation height of the installed tower crane that interferes with the current tower crane height, until the height of the installed tower crane after lifting meets the safety height with other installed tower cranes, which is determined as the initial installation height.

[0010] Furthermore, in the method for constructing the initial installation height of a group of towers provided by the present invention, in step 1, the method for automatically calculating the planning order of tower cranes includes:

[0011] Step 1.1: Determine the interference relationship between the tower cranes according to the tower group layout diagram, take the tower cranes as nodes, connect the tower cranes that interfere with each other into a line, and construct a tower group interference diagram;

[0012] Step 1.2: In the tower group interference graph, assign complexity to the tower crane at each node according to the number of connections between the nodes;

[0013] Step 1.3: According to the interference graph of the tower groups with given complexity, select the crane with the greatest complexity, which is numbered 1 and is assigned the first color;

[0014] Step 1.4: Find all other cranes that are not connected to the currently numbered crane in the tower group interference graph with assigned complexity to form a set C, select the crane with the largest complexity in set C as the next number, and assign it the first color;

[0015] Step 1.5: Execute step 1.4 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes;

[0016] Step 1.6: Find the crane with the greatest complexity among the remaining unnumbered cranes in set C as the next number and assign it another color;

[0017] Step 1.7: Execute step 1.6 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes that are numbered starting from step 1.6;

[0018] Step 1.8: Determine whether there are unnumbered cranes in set C. If so, execute step 1.6; if not, the crane numbering ends.

[0019] Furthermore, in the method for constructing the initial installation height of a group of towers provided by the present invention, in step 1, when there are multiple tower cranes with the greatest complexity, any one of the tower cranes is used as the sequence for numbering.

[0020] Furthermore, in the method for constructing the initial installation height of a group of towers provided by the present invention, in step 1, the color assignment is removed.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The method for constructing the initial installation height of a group of towers provided by the present invention sequentially lifts the tower cranes according to the tower crane planning order automatically calculated by the group tower layout diagram, and sequentially calculates the number of standard section installation sections of each tower crane according to the result of the formula by taking integers, so as to determine the lifting height of each tower crane; judges whether the currently lifted tower crane meets the safety height between other lifted tower cranes; if so, the lifting height of the current tower crane is the initial installation height; if not, the number of standard sections of the tower crane is increased to lift the installation height of the installed tower cranes that interfere with the current tower crane height, until the height of the lifted installed tower crane meets the safety height between the other installed tower cranes, and is determined as the initial installation height. Compared with the manual planning and preparation of the group tower plan, the present invention can scientifically and reasonably optimize the initial installation height of the group tower, improve the efficiency of the group tower planning and preparation, and avoid the problem of horizontal and height interference between tower cranes. According to this method, when constructing a group tower at a construction site, the construction efficiency and construction safety of each tower crane can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flow chart of the construction method for the initial installation height of the tower group;

[0024] Figure 2 It is a schematic diagram of the plan structure of the tower group layout;

[0025] Figure 3 is the interference pattern of the group of towers that gives complexity;

[0026] Figures 4 to 7 It is a schematic diagram of the process of automatically calculating the tower crane planning order based on the tower group layout diagram; DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0028] Please refer to Figure 1 The embodiment of the present invention provides a method for constructing the initial installation height of a group of towers, which may include the following steps:

[0029] Step 1: Automatically calculate the planning order of tower cranes according to the tower group layout diagram. The order is the numbering sequence. In order to automatically calculate the planning order of tower cranes, Figures 2 to 7 As shown, it may specifically include:

[0030] Step 1.1: Determine the interference relationship between the tower cranes according to the tower group layout diagram. Take the tower cranes as nodes, connect the tower cranes that interfere with each other into a line, and construct a tower group interference diagram, such as Figures 2 to 3 As shown. Figure 2 The example of the tower group layout diagram includes the building number and the tower cranes and their number information, as well as the tower crane's rotation range and the interference information of the rotation. The outer double-layer red dotted circle centered on the tower crane is the tower crane's rotation range. The boundary area of ​​adjacent rotation ranges is the interference location; Figure 3 The middle circle corresponds to Figure 2 The purple lines in the figure represent the interference between the cranes.

[0031] Step 1.2: In the tower group interference graph, assign complexity to the tower crane at each node according to the number of connections between the nodes, such as Figure 3 The black numbers at each crane node represent the complexity.

[0032] Step 1.3: According to the interference graph of the tower groups with given complexity, select the crane with the greatest complexity, which is number 1 and can be assigned the first color, such as Figure 4 As shown. Figure 3 The highest complexity is 4, and there are two cranes with complexity 4. One is randomly selected as serial number 1. That is, when there are multiple cranes with the highest complexity, any one of them is used as the serial number. At this time, the first color can be red.

[0033] Step 1.4: Find all other cranes that are not connected to the currently numbered crane in the interference graph of the tower group with given complexity to form a set C. Select the crane with the largest complexity in set C as the next number, that is, number 2, and assign it the first color, such as Figure 3 to Figure 4 shown.

[0034] Step 1.5: Execute step 1.4 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes. At this time, the numbers 3 to 6 are compiled, such as Figure 5 As shown. At this time, the remaining unnumbered cranes in set C are connected to the numbered cranes. At this time, the numbered cranes are 3 to 6.

[0035] Step 1.6: Find the crane with the greatest complexity among the remaining unnumbered cranes in set C as the next number, that is, number 7, which can be assigned another color, such as Figure 6 That is, in step 1.6, serial number 7 is continued to be assigned following serial number 6 in step 1.5, and the color assigned to serial number 7 can be blue. The remaining unnumbered cranes in set C refer to the cranes that are connected to the cranes with serial numbers 3-6.

[0036] Step 1.7: Execute step 1.6 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes that are numbered starting from step 1.6. At this time, the numbers 8 to 11 are numbered. Figure 6 At this time, the remaining unnumbered cranes in set C are connected to the cranes numbered 8-11.

[0037] Step 1.8: Determine whether there are unnumbered cranes in set C. If yes, execute step 1.6; if no, the crane numbering ends. Figure 7 As shown. After judging that there are unnumbered tower cranes in set C, step 1.6 is executed to obtain serial number 12, which can be assigned another color such as green. Then, after step 1.7, the compilation of serial numbers 13-14 is formed. So far, the compilation of tower crane serial numbers 1-14 has been completed. Whether there is a compilation of serial numbers 12-14 depends on the tower group layout diagram. Of course, it is not limited to the three starting point serial numbers and color assignments, and there may be more starting points and their corresponding color assignments. The three starting point serial numbers refer to serial number 1, serial number 7 and serial number 12.

[0038] In step 1, when the most complex tower cranes are the same, any one of them is used as the sequence numbering sequence. The above steps 1.1 to 1.8 can be automatically numbered by scanning the tower group layout drawing with a computer.

[0039] Step 2: Lift the tower cranes in order according to the planned order, and calculate the number of standard installation sections of each tower crane in turn according to the integer of the result of formula (1) to determine the lifting height of each tower crane.

[0040] N=[(H-L0-H0) / L]+1 (1).

[0041] Among them, N is the number of standard section installation sections, H is the minimum working clearance height of the tower crane, L0 is the installed length of the tower crane foundation section, H0 is the tower crane foundation elevation, and L is the standard section length.

[0042] Step 3: Determine whether the currently lifted tower crane meets the safety height with other lifted tower cranes; if so, the lifting height of the current tower crane is the final planning scheme for the initial installation height; if not, increase the number of standard sections of the tower crane to raise the installation height of the installed tower crane that interferes with the current tower crane height, until the height of the installed tower crane after lifting meets the safety height with other installed tower cranes, which is determined as the final planning scheme for the initial installation height.

[0043] For example, in the embodiment of the present invention, the minimum working clearance height of all tower cranes is H=20 meters, the tower crane foundation elevation is H0=-1 meter, the standard section is L=3 meters, and the installed length of the foundation section is L0=10 meters. Then N of all tower cranes is [(20-10-(-1)) / 3]+1=4. That is, 4 standard sections must be lifted to 22 meters (10+4×3=22) at the beginning.

[0044] (1) Tower cranes No. 1, 2, 3, 4, 5, and 6 are all lifted to 22 meters first. They do not collide with each other, which means they meet the safety height. Other tower cranes have not been lifted yet, so no adjustment is required at this time. See Table 1 below.

[0045]

[0046] (2) When crane No. 7 is lifted to 22 meters, it does not meet the safety distance with crane No. 1 and crane No. 6. Then crane No. 1 and crane No. 6 are both lifted to 34 meters by adding 4 standard sections. The safety distance refers to the safety height.

[0047] (3) When crane No. 8 is lifted to 22 meters, it does not meet the safety distance with crane No. 2 and crane No. 5. Then crane No. 2 and crane No. 5 are raised to 34 meters by adding 4 standard sections.

[0048] (4) When crane No. 9 is lifted to 22 meters, it does not meet the safety distance with crane No. 4. Then crane No. 4 is increased by 4 standard sections and lifted to 34 meters.

[0049] (5) When crane No. 10 is lifted to 22 meters, it does not meet the safety distance with crane No. 3. Then crane No. 3 is increased by 4 standard sections and lifted to 34 meters.

[0050] (6) Tower crane No. 11 is raised to 22 meters, and the others do not need to be adjusted. See Table 2 below.

[0051]

[0052] It can be seen from Table 2 that the initial installation heights of the tower cranes No. 1-6, i.e. the tower cranes assigned a red color, are all 34 meters, and the initial installation heights of the tower cranes No. 7-11, i.e. the tower cranes assigned a blue color, are all 22 meters.

[0053] (7) When crane No. 12 is lifted to 22 meters, it does not meet the safety distance with crane No. 7. Then crane No. 7 is lifted to 46 meters by adding 8 standard sections. Since crane No. 7 will collide with crane No. 2 and crane No. 6 when it is lifted to 34 meters, it needs to be lifted to a height greater than 34 meters and meet the safety distance. At this time, the initial installation heights of the crane No. are shown in Table 3 below.

[0054]

[0055] (8) When crane No. 13 is lifted to 22 meters, it does not meet the safety distance with crane No. 8. Then crane No. 8 is raised by 8 standard sections to 46 meters. Since crane No. 8 does not meet the safety distance when it is lifted to 34 meters, it will collide with cranes No. 2 and 5, so it needs to be lifted further.

[0056] (9) Tower crane 14 is raised to 22 meters, and no other adjustments are required. The final planning scheme for the initial installation height of the tower cluster is shown in Table 4 below.

[0057]

[0058] In order to automatically calculate the planning order of tower cranes, the method for the initial installation height of a group of towers provided by the embodiment of the present invention can remove the color assignment in step 1. The color assignment is used to facilitate the intuitive compilation of serial numbers and to facilitate the search for whether there are connected tower cranes with the same color serial number.

[0059] The method for constructing the initial installation height of a group of towers provided by an embodiment of the present invention is to sequentially lift the tower cranes according to the tower crane planning order automatically calculated by the tower crane layout diagram, and sequentially calculate the number of standard section installation sections of each tower crane according to the result of the formula, so as to determine the lifting height of each tower crane; judge whether the currently lifted tower crane meets the safety height between other lifted tower cranes; if so, the lifting height of the current tower crane is the initial installation height; if not, increase the number of standard sections of the tower crane to lift the installation height of the installed tower crane that interferes with the current tower crane height, until the height of the installed tower crane after lifting meets the safety height between other installed tower cranes, and is determined as the initial installation height. Compared with the manual planning and preparation of the group tower scheme, the present invention can scientifically and reasonably optimize the initial installation height of the group tower, improve the efficiency of the group tower planning and preparation, and avoid the problem of horizontal and height interference between tower cranes. According to the method, when constructing a group tower at a construction site, the construction efficiency and construction safety of each tower crane can be improved. The embodiment of the present invention can improve the efficiency of the group tower scheme preparation, so that the initial installation height of the group tower is optimal, which is beneficial to mechanical efficiency and site safety.

[0060] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A method for constructing the initial installation height of a group of towers, characterized in that: include: Step 1: Automatically calculate the tower crane planning sequence based on the tower group layout diagram, including: Step 1.1: Determine the interference relationship between the tower cranes according to the tower group layout diagram, take the tower cranes as nodes, connect the tower cranes that interfere with each other into a line, and construct a tower group interference diagram; Step 1.2: In the tower group interference graph, assign complexity to the tower crane at each node according to the number of connections between the nodes; Step 1.3: According to the interference graph of the tower groups with given complexity, select the crane with the greatest complexity, which is numbered 1 and is assigned the first color; Step 1.4: Find all other cranes that are not connected to the currently numbered crane in the tower group interference graph with assigned complexity to form a set C, select the crane with the largest complexity in set C as the next number, and assign it the first color; Step 1.5: Execute step 1.4 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes; Step 1.6: Find the crane with the greatest complexity among the remaining unnumbered cranes in set C as the next number and assign it another color; Step 1.7: Execute step 1.6 repeatedly until there are no other cranes in set C that are not connected to the numbered cranes that are numbered starting from step 1.6; Step 1.8: Determine whether there are unnumbered cranes in set C. If yes, execute step 1.6; if no, the crane numbering ends; Step 2: Install and lift the tower cranes in sequence according to the tower crane planning order, and calculate the number of standard installation sections of each tower crane in sequence according to the result of formula (1) to determine the lifting height of each tower crane; N = [(H-L0-H0) / L] + 1 (1); Among them, N is the number of standard section installation sections, H is the minimum working clearance height of the tower crane, L0 is the installed length of the tower crane foundation section, H0 is the tower crane foundation elevation, and L is the standard section length; Step 3: Determine whether the currently lifted tower crane meets the safety height with other lifted tower cranes; if so, the lifting height of the current tower crane is the initial installation height; if not, increase the number of standard sections of the tower crane to raise the installation height of the installed tower crane that interferes with the current tower crane height, until the height of the installed tower crane after lifting meets the safety height with other installed tower cranes, which is determined as the initial installation height.

2. The method for constructing the initial installation height of a group of towers according to claim 1, characterized in that: In step 1, when there are multiple tower cranes with the highest complexity, any one of them is used as the sequence number.

3. The method for constructing the initial installation height of a group of towers according to claim 1, characterized in that: In step 1, remove the color assignment.

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