CN102304943B - Jacking method for space truss structure - Google Patents

Jacking method for space truss structure Download PDF

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CN102304943B
CN102304943B CN 201110182339 CN201110182339A CN102304943B CN 102304943 B CN102304943 B CN 102304943B CN 201110182339 CN201110182339 CN 201110182339 CN 201110182339 A CN201110182339 A CN 201110182339A CN 102304943 B CN102304943 B CN 102304943B
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vertical
truss
lifting equipment
hoist
wire rope
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CN102304943A (en
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陶国权
黄雨霓
胡龙
陈思思
马云鹏
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Beihang University
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Beihang University
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Abstract

本发明公开了一种空间桁架结构顶升方法，包括安装升降设备、设置卷扬机、设置纵横连接模块A、将纵横连接模块A与升降设备绑定连接、通过升降设备带动纵横连接模块A上升、在每个纵横连接模块A的向下的纵向方向上连接竖直桁架A等步骤。本发明提出的一种空间桁架结构的顶升方法，解决了浮空器巨型结构的安装难点，避免使用巨型和超高的提升安装设备，且本发明的安装速度快、效率高、安全性高，对巨型工装系统的依赖性小。

Figure 201110182339

The invention discloses a jacking method for a space truss structure, which includes installing lifting equipment, setting a hoist, setting a vertical and horizontal connection module A, binding and connecting the vertical and horizontal connection module A to the lifting equipment, driving the vertical and horizontal connection module A to rise through the lifting equipment, Steps such as connecting the vertical trusses A in the downward longitudinal direction of each vertical and horizontal connection module A. The jacking method of a space truss structure proposed by the present invention solves the installation difficulty of the giant structure of the aerostat, avoids the use of giant and ultra-high lifting installation equipment, and the installation speed of the present invention is fast, high in efficiency and high in safety , little dependence on giant tooling system.

Figure 201110182339

Description

A kind of raising method of space truss structure
Technical field
The invention provides a kind of raising method of space truss structure, belong to large scale structure package technique field.
Background technology
The stratosphere aerostatics has now become the focus of various countries' research, is applied to the aspects such as communication relaying, high altitude surveillance, early warning, air transport, and the U.S., Canada, Japan, Korea S, Britain, Germany, Israel and China etc. are actively developing correlative study.Because stratosphere atmospheric density is low, rely on net buoyancy to stay the empty general volume of dirigible all larger, be about 152 meters, 49 meters of diameters as the HAA of the U.S., volume is 14.5 ten thousand steres, the CL-160 ultra-large type dirigible of Germany Cargolifter company development, long 260 meters, 65 meters of diameters, Russia is developing large load dirigible, this dirigible diameter is 58 meters, long 290 meters, and 200 tons of actual load.Because the structural entity assembly problem that aerostatics physical dimension super large brings is very outstanding, with conventional technique and frock can't guarantee that installation process is short, safety and precision.In the urgent need to developing a kind of simple operation, being suitable for the technology that the super large light structures is installed, wind loading rating is installed and is improved safety is installed with further minimizing set-up time, assurance assembly precision, enhancing.
Summary of the invention
For problems of the prior art, the present invention proposes a kind of raising method of space truss structure, mainly with the auxiliary restriction technique of jacking equipment parallel top Shengji's art and ground, solve the assembly problem of aerostatics mammoth structure by the parallel assembling fast between standard module, the method also can be used for the assembling of the large space truss structures such as steel structure simultaneously.
The present invention proposes a kind of space truss structure raising method, rise according to elevating stage and promote superstructure, substructure is installed, installing rear elevating stage descends, again promote superstructure, next substructure is installed, until total installs, each substructure of installing changes according to the difference of structural entity form, specifically comprises following step:
Step 1: the ground location of each column in the trussed construction of determining to want to build, place respectively one group of jacking equipment at each ground location point, every group of jacking equipment is by two jacking equipment monomer compositions;
Step 2: take the ground location point of each column as angle point, choose the polygonal center that between each angle point, line consists of, on the extended line direction of polygonal center and corresponding angle point line, hoist engine is set respectively, the distance between a volume machine and polygon angle point is H 0, H 0Be the trussed construction overall height, be respectively arranged with a hoist engine on each angle point direction, the pulled by cable direction of hoist engine is aimed at polygonal center;
Step 3: place a link block A in length and breadth in the middle of two jacking equipment monomers of every group of jacking equipment, and laterally connect adjacent two link block A in length and breadth by the straight modules A of horizontal square frame, form take each in length and breadth link block A as the top layer trussed construction of angle point;
Step 4: link block A is connected with the jacking equipment binding in length and breadth, and the top layer trussed construction is fixed, and with the wire rope of hoist engine and the corresponding A of link block in length and breadth binding connection, jacking equipment upwards promotes, and steel wire rope of windlass is lax;
Step 5: drive in length and breadth link block A by jacking equipment and rise, when hoisting depth for stopping apart from behind 6.5 meters～6.6 meters, ground, the wire rope of tensioning hoisting machine, fixedly trussed construction top;
Step 6: at each vertical connecting truss A on the downward longitudinal direction of link block A in length and breadth, form the vertical truss of first paragraph;
Step 7: the bottom that jacking equipment drop to vertical direction truss A position, by vertical truss A support, top, remove the binding of link block A and jacking equipment in length and breadth, then make jacking equipment continue to drop to lowest part, hoist engine tightens up wire rope, constraint truss top;
Step 8: the bottom of binding jacking equipment and vertical truss A, loosen steel wire rope of windlass, promote 6.5～6.6 meters, vertical truss A distance from bottom ground, in the bottom of the vertical truss A of the vertical truss of first paragraph, vertical truss B is installed straight down, form the vertical truss of second segment;
Step 9: after the vertical truss of installation second segment, jacking equipment drops to the vertical truss of second segment bottom and lands, and supports total, remove jacking equipment and the vertically binding of truss A bottom, make jacking equipment drop to lowest part, hoist engine tightens up wire rope, constraint truss top;
Step 10: with the bottom of vertical truss B and jacking equipment binding, loosen steel wire rope of windlass, promotes 6.5～6.6 meters, vertical truss B distance from bottom ground, tensioning hoisting machine wire rope retrains the truss top;
Step 11: bottom vertical truss B, link block B in length and breadth is installed respectively, then the bottom of link block B lands to make jacking equipment drop in length and breadth, support total, after removing the constraint of vertical truss B and jacking equipment, make jacking equipment drop to minimum point;
Step 12: laterally connect in length and breadth the straight module B of horizontal square frame between link block B at adjacent two, complete building of first floor trussed construction;
Step 13: repeating step four is completed remaining each layer connection of trussed construction in turn to step 12, finally completes building of whole space truss structure.The invention has the advantages that:
1, the invention provides a kind of raising method of space truss structure, solved the installation difficult point of aerostatics mammoth structure, avoid using huge and erection ﹠ lift equipment superelevation;
2, the invention provides a kind of raising method of space truss structure, installation rate is fast, efficient is high, safe;
3, the invention provides a kind of raising method of space truss structure, little to the dependence of huge fixture system;
4, the invention provides a kind of raising method of space truss structure, all structure assembly operations are all completed near the ground, have reduced the risk of work high above the ground.
Description of drawings
Fig. 1: the structural representation of space trussed construction in the present invention;
Fig. 2: the installation site schematic diagram of jacking equipment in the present invention;
Fig. 3: the schematic diagram of jacking equipment in the present invention;
Fig. 4: the installation site schematic diagram in the present invention;
Fig. 5: the straight modules A schematic diagram of horizontal square frame is installed in the present invention;
Fig. 6: promote the schematic diagram of link block A in length and breadth in the present invention;
Fig. 7: the schematic diagram that vertical truss A is installed in the present invention;
Fig. 8: the schematic diagram of jacking equipment landing in the present invention;
Fig. 9: the schematic diagram that promotes vertical truss A in the present invention;
Figure 10: the schematic diagram that vertical truss B is installed in the present invention;
Figure 11: link block in length and breadth is installed in the present invention;
Figure 12: the schematic diagram that the straight module B of horizontal square frame is installed in the present invention;
Figure 13: the structural representation of completing the overall space truss module in the present invention.
The specific embodiment
Below by drawings and Examples, the present invention is further detailed.
The present invention proposes a kind of space truss structure raising method and can complete and build multilayer (more than or equal to 2 layers) trussed construction, as shown in Figure 1, trussed construction can be triangular prism trussed construction, quadrangular trussed construction, pentagonal prism trussed construction or six prism trussed constructions, specifically comprises following step:
Step 1: the ground location of each column in the trussed construction of determining to want to build, place respectively one group of jacking equipment at each ground location point, as shown in Figure 2.The bearing capacity F of described jacking equipment satisfies F 〉=4G, G is the gross weight of the trussed construction wanting to build, the upward stroke L of jacking equipment satisfies L 〉=(H+4 rice), H is the height of vertical module, every group of jacking equipment is by two jacking equipment monomer compositions, as shown in Figure 3, the distance between two monomers is 2B, and B is the vertical cross section length of side of truss in trussed construction.
Step 2: take the ground location point of each column as angle point, choose the polygonal center that between each angle point, line consists of, on the extended line direction of polygonal center and corresponding angle point line, hoist engine is set respectively, the distance between a volume machine and polygon angle point is H 0, H 0Be the trussed construction overall height, be respectively arranged with a hoist engine on each angle point direction, as shown in Figure 4, the pulled by cable direction of hoist engine is aimed at polygonal center.Described hoist engine bearing capacity F 1Satisfy F 1〉=10000N, steel wire rope of windlass folding and unfolding length L 1Satisfy L 1〉=2H 0
Step 3: place a link block A in length and breadth in the middle of two jacking equipment monomers of every group of jacking equipment, and laterally connect adjacent two link block A in length and breadth by the straight modules A of horizontal square frame, formation take each in length and breadth link block A as the top layer trussed construction of angle point, as shown in Figure 5.
Step 4: link block A is connected with the jacking equipment binding in length and breadth, and the top layer trussed construction is fixed.With the wire rope of hoist engine and the corresponding A of link block in length and breadth binding connection, jacking equipment upwards promotes, and steel wire rope of windlass is lax.
Step 5: drive in length and breadth link block A by jacking equipment and rise, for stopping apart from behind 6.5 meters～6.6 meters, ground, in lifting process, the hoisting depth of every group of jacking equipment should equate when hoisting depth, and discrepancy in elevation error is no more than 0.5 meter, as shown in Figure 6.Promote the wire rope that passes through the tensioning hoisting machine after finishing, fixedly the trussed construction top.
Step 6: at each vertical connecting truss A on the downward longitudinal direction of link block A in length and breadth, form the vertical truss of first paragraph, as shown in Figure 7.
Step 7: the bottom that jacking equipment drop to vertical direction truss A position, by vertical truss A support, top, removes the binding of link block A and jacking equipment in length and breadth, then make jacking equipment continue to drop to lowest part, hoist engine tightens up wire rope, constraint truss top, as shown in Figure 8.
Step 8: the bottom of binding jacking equipment and vertical truss A, loosen steel wire rope of windlass, promote 6.5～6.6 meters, vertical truss A distance from bottom ground, in the bottom of the vertical truss A of the vertical truss of first paragraph, vertical truss B is installed straight down, form the vertical truss of second segment, as shown in Figure 9.
Step 9: after the vertical truss of installation second segment, jacking equipment drops to the vertical truss of second segment bottom and lands, support total, as shown in figure 10, remove jacking equipment and the vertically binding of truss A bottom, make jacking equipment drop to lowest part, hoist engine tightens up wire rope, constraint truss top.
Step 10: with the bottom of vertical truss B and jacking equipment binding, loosen steel wire rope of windlass, promotes 6.5～6.6 meters, vertical truss B distance from bottom ground, tensioning hoisting machine wire rope retrains the truss top.
Step 11: bottom vertical truss B, link block B in length and breadth is installed respectively, then the bottom of link block B lands to make jacking equipment drop in length and breadth, supports total, as shown in figure 11, after removing the constraint of vertical truss B and jacking equipment, make jacking equipment drop to minimum point.
Step 12: laterally connect in length and breadth the straight module B of horizontal square frame between link block B at adjacent two, as shown in figure 12, complete building of first floor trussed construction.
Step 13: repeating step four is completed each layer connection at trussed construction top in turn to step 12, as shown in figure 13, finally completes building of whole space truss structure.
Embodiment 1:The trussed construction of wanting to build in the present embodiment is the triangular prism trussed construction, totally 6 layers of truss, and every floor height is 18 meters, and 18 meters are comprised of the vertical truss of 26 meters and the link block in length and breadth of 23 meters, and vertically the truss cross section is equilateral triangle.Large-scale triangular prism truss horizontal section is equilateral triangle, and the length of side is 50 meters, as shown in Figure 1.
Step 1: each column ground location of the location triangular prism truss wanting to build, place respectively jacking equipment at the ground location place of each column, a stud is placed one group of jacking equipment, as shown in Figure 3.
Step 2: form triangle with the subpoints of three of triangular prisms column center on ground, take leg-of-mutton angle point as reference point, in the extended line direction of leg-of-mutton center and angle point line, hoist engine is set, the distance between volume field machine and triangle angle point is H 0, three directions arrange three hoist engines altogether;
Step 3: place a link block A in length and breadth at every group of jacking equipment top, link block A is arranged on the centre of two jacking equipment monomers in every group of jacking equipment in length and breadth, take three in length and breadth link block A as angle point, be connected to form top layer transverse triangle shape square frame by the straight modules A of horizontal square frame, as shown in Figure 5.
Step 4: with three in length and breadth link block A and the jacking equipment binding wire rope that connects hoist engine be connected with the corresponding A of link block in length and breadth binding, when jacking equipment promoted, steel wire rope of windlass relaxed.
Step 5: driving in length and breadth by jacking equipment, link block A rises, and then promote top layer transverse triangle shape square frame, and hoisting depth is for stopping apart from behind 6.5 meters-6.6 meters, ground, and in lifting process, the hoisting depth of three groups of jacking equipments should equate, discrepancy in elevation error is no more than 0.5 meter, as shown in Figure 6.Promote the wire rope that passes through the tensioning hoisting machine after finishing, fixedly the trussed construction top.
Step 6: (being the ground direction) vertical connecting truss A downwards respectively on the longitudiual truss of the A of link block in length and breadth of each three corner location forms the vertical truss of first paragraph, as shown in Figure 7.
Step 7: the bottom that jacking equipment drop to vertical truss A position, by vertical truss A support, top transverse triangle shape square frame, remove the binding of link block A and jacking equipment in length and breadth, then make jacking equipment continue to drop to lowest part, hoist engine tightens up wire rope, and the constraint vertical truss of top layer top as shown in Figure 8.
Step 8: the bottom of binding jacking equipment and vertical truss A, loosen steel wire rope of windlass, promote vertical truss A apart from 6.5 meters-6.6 meters, ground, in the bottom of vertical truss A, vertical truss B is installed straight down, form the vertical truss of second segment, as shown in Figure 9.
Step 9: after the vertical truss of installation second segment, jacking equipment drops to vertical truss B bottom and lands, and supports total, as shown in figure 10.After removing the binding of jacking equipment and vertical truss B bottom, jacking equipment drops to lowest part.Hoist engine tightens up wire rope, constraint truss top.
Step 10: with bottom and the jacking equipment binding of vertical truss B.Loosen steel wire rope of windlass, promote vertical truss B6.5 rice-6.6 meter, tensioning hoisting machine wire rope, constraint truss top.
Step 11: bottom vertical truss B, link block B in length and breadth is installed.Jacking equipment drops in length and breadth that the bottom of link block B lands, and supports total, as shown in figure 11.Remove the constraint of vertical truss B and jacking equipment, jacking equipment drops to minimum point.
Step 12: laterally connect in length and breadth the straight module B of horizontal square frame between link block B at adjacent two, as shown in figure 12, complete building of first floor trussed construction.
Step 13: repeating step four is completed second connection to layer 6 at trussed construction top, as shown in figure 13 in turn to step 13.

Claims (4)

1.一种空间桁架结构顶升方法，其特征在于：具体包括以下几个步骤：1. A space truss structure jacking method is characterized in that: specifically comprise the following steps: 步骤一：确定欲搭建的桁架结构中每个立柱的地面位置，在每个地面位置点分别放置一组升降设备，每组升降设备由两个升降设备单体组成；Step 1: Determine the ground position of each column in the truss structure to be built, and place a set of lifting equipment at each ground position, each set of lifting equipment consists of two lifting equipment units; 步骤二：以每个立柱的地面位置点为角点，选取各个角点之间连线构成的多边形的中心，在多边形的中心与对应角点连线的延长线方向上分别设置卷扬机，卷场机与多边形角点之间的距离为H0，H0为桁架结构总高度，每个角点方向上分别设置有一个卷扬机，卷扬机的绳索牵拉方向对准多边形的中心；Step 2: Take the ground position point of each column as the corner point, select the center of the polygon formed by the connection between the corner points, and set the hoist respectively in the direction of the extension line between the center of the polygon and the corresponding corner point. The distance between the hoist and the corners of the polygon is H 0 , H 0 is the total height of the truss structure, and a hoist is respectively arranged in the direction of each corner, and the rope pulling direction of the hoist is aligned with the center of the polygon; 步骤三：在每组升降设备的两个升降设备单体的中间放置一个纵横连接模块A，并通过横向方框直模块A横向连接相邻的两个纵横连接模块A，形成以每个纵横连接模块A为角点的顶层桁架结构；Step 3: Place a vertical and horizontal connection module A in the middle of the two lifting equipment monomers of each group of lifting equipment, and connect two adjacent vertical and horizontal connection modules A horizontally through the horizontal square frame straight module A to form a vertical and horizontal connection Module A is the top truss structure of the corner point; 步骤四：将纵横连接模块A与升降设备绑定连接，使顶层桁架结构固定，将卷扬机的钢丝绳与相对应的纵横连接模块A绑定连接，升降设备向上提升，卷扬机钢丝绳松弛；Step 4: Bind and connect the vertical and horizontal connection module A with the lifting equipment to fix the top truss structure, bind and connect the wire rope of the hoist to the corresponding vertical and horizontal connection module A, lift the lifting equipment upwards, and loosen the wire rope of the hoist; 步骤五：通过升降设备带动纵横连接模块A上升，当提升高度为距离地面6.5米～6.6米后停止，收紧卷扬机的钢丝绳，固定桁架结构顶部；Step 5: Use the lifting equipment to drive the vertical and horizontal connection module A to rise, stop when the lifting height is 6.5 meters to 6.6 meters from the ground, tighten the wire rope of the hoist, and fix the top of the truss structure; 步骤六：在每个纵横连接模块A的向下的纵向方向上连接竖直桁架A，形成第一段竖直桁架；Step 6: Connect the vertical truss A in the downward longitudinal direction of each vertical and horizontal connection module A to form the first vertical truss; 步骤七：升降设备降落至竖直方向桁架A的底端着地位置，通过竖直桁架A支撑顶部，解除纵横连接模块A与升降设备的绑定，然后使升降设备继续降落至最低处，卷扬机收紧钢丝绳，约束桁架顶部；Step 7: The lifting equipment is lowered to the ground position at the bottom of the vertical truss A, the top is supported by the vertical truss A, the binding of the vertical and horizontal connection module A and the lifting equipment is released, and then the lifting equipment continues to fall to the lowest point, and the hoist is retracted. Tighten the wire rope to restrain the top of the truss; 步骤八：绑定升降设备和竖直桁架A的底部，放松卷扬机钢丝绳，提升竖直桁架A底部距离地面6.5～6.6米，在第一段竖直桁架的竖直桁架A的底端竖直向下安装竖直桁架B，形成第二段竖直桁架；Step 8: Bind the lifting equipment and the bottom of the vertical truss A, loosen the wire rope of the hoist, and lift the bottom of the vertical truss A to 6.5-6.6 meters from the ground, and the bottom of the vertical truss A of the first vertical truss is vertically Install the vertical truss B below to form the second vertical truss; 步骤九：安装完成第二段竖直桁架后，升降设备下降至第二段竖直桁架底端着地，支撑整个结构，解除升降设备和竖直桁架A底部的绑定，使升降设备下降至最低处，卷扬机收紧钢丝绳，约束桁架顶部；Step 9: After the second section of vertical truss is installed, the lifting equipment is lowered to the ground at the bottom of the second section of vertical truss to support the entire structure, and the binding between the lifting equipment and the bottom of vertical truss A is released, so that the lifting equipment is lowered to the minimum At , the hoist tightens the wire rope to constrain the top of the truss; 步骤十：将竖直桁架B的底部与升降设备绑定，放松卷扬机钢丝绳，提升竖直桁架B底部距离地面6.5～6.6米，收紧卷扬机钢丝绳，约束桁架顶部；Step 10: Bind the bottom of the vertical truss B to the lifting equipment, loosen the wire rope of the hoist, lift the bottom of the vertical truss B to 6.5-6.6 meters from the ground, tighten the wire rope of the hoist, and restrain the top of the truss; 步骤十一：在竖直桁架B底部分别安装纵横连接模块B，然后使升降设备下降至纵横连接模块B的底部着地，支撑整个结构，解除竖直桁架B与升降设备的约束后，使升降设备下降至最低点；Step 11: Install the vertical and horizontal connection modules B at the bottom of the vertical truss B, and then lower the lifting equipment to the bottom of the vertical and horizontal connection module B to support the entire structure. After releasing the constraints of the vertical truss B and the lifting equipment, make the lifting equipment descend to the lowest point; 步骤十二：在相邻两个纵横连接模块B之间横向连接横向方框直模块B，完成第一层桁架结构的搭建；Step 12: Horizontally connect the horizontal square frame straight module B between two adjacent vertical and horizontal connection modules B, and complete the construction of the first floor truss structure; 步骤十三：重复步骤四至步骤十二，顺次完成桁架结构其余的各层连接，最终完成整个空间桁架结构的搭建。Step 13: Repeat step 4 to step 12 to complete the connection of the remaining layers of the truss structure in sequence, and finally complete the construction of the entire space truss structure. 2.根据权利要求1所述的一种空间桁架结构顶升方法，其特征在于：步骤一中升降设备的承载力F满足F≥4G，G为欲搭建的桁架结构的总重量，升降设备的上升行程L满足L≥H+4米，H为空间桁架结构的高度。2. A jacking method for a space truss structure according to claim 1, characterized in that: in step 1, the bearing capacity F of the lifting equipment satisfies F≥4G, where G is the total weight of the truss structure to be built, and the weight of the lifting equipment The ascending stroke L satisfies L≥H+4 meters, and H is the height of the space truss structure. 3.根据权利要求1所述的一种空间桁架结构顶升方法，其特征在于：步骤一中每组升降设备的两个升降设备单体之间的距离为2B，B为桁架结构中竖直桁架的截面边长。3. The jacking method for a space truss structure according to claim 1, characterized in that: in step 1, the distance between the two lifting equipment monomers of each group of lifting equipment is 2B, and B is the vertical height in the truss structure. The section side length of the truss. 4.根据权利要求1所述的一种空间桁架结构顶升方法，其特征在于：步骤二中卷扬机承载力F1满足F1≥10000N，卷扬机钢丝绳收放长度L1满足L1≥2H0。4. A lifting method for a space truss structure according to claim 1, characterized in that: in step 2, the bearing capacity F 1 of the winch satisfies F 1 ≥ 10000N, and the retractable length L 1 of the wire rope of the hoist satisfies L 1 ≥ 2H 0 .
CN 201110182339 2011-06-30 2011-06-30 Jacking method for space truss structure Expired - Fee Related CN102304943B (en)

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