Wire Loop Boxes
Description:
Wire Loop Boxes are designed to be used as a structural connection for pre-cast units with recesses, or between precast units and in-situ concrete components.
You Will Enjoy Them When You Buy Wire Loop Boxes from HULK Metal.
Higher Quality Wire Loop Box:
We own a factory equipped with advanced production equipment and testing equipment.
We also have an experienced quality inspection team to ensure your orders’ Qualification rate.
Shorter Production Cycle:
We will Design a better production solution for you according to your requirements.
We have a full range of wire loop box molds.
Our production team can complete your orders faster.
Best Freight Solution:
We integrated hundreds of freight companies to provide you with suitable freight routes.
We also provide goods transit, goods warehousing, and other freight services.
Comprehensive After Service:
We have a professional after-service team to solve problems with technology, freight, quality, and others.
Dimensions and Tolerances of HULK Metal Wire Loop Box
| NAME | HULK Metal Wire Loop Box | ||||||||
| DRAWINGS | Types | SL [mm]±10 | L1 [mm]±10 | L [mm]±20 | C [mm]±2 | D [mm] | B [mm]±2 | T [mm]±2 | Φ [mm] |
 | HM-A | 60 | 210 | 276 | 160 | 60 | 50 | 20 | 6 |
HM-B | 80 | 210 | 296 | 160 | 60 | 50 | 20 | 6 | |
HM-C | 100 | 210 | 316 | 160 | 65 | 50 | 20 | 6 | |
HM-D | 120 | 210 | 336 | 160 | 70 | 50 | 20 | 6 | |
HM-E | 140 | 370 | 528 | 200 | 100 | 70 | 30 | 8 | |
Thickness of the Steel Plate of the Box | |||||||||
0.5~0.7mm | |||||||||
Materials of the Wire Loop Box | |||||||||
Compression Sleeve | 1.0330 | ||||||||
Wire Loop | high-strength steel wire rope SE-Zn | ||||||||
Box | 1.0046 | ||||||||
Packaging | Wooden case / Carton / Bulk / Individually Packaged / Customized | ||||||||
Service | Freight consulting / Quality inspection / After-sales / Other value-added services. | ||||||||
Delivery Method | Sea / Air / Land | ||||||||
Quality Assurance | Life-Long | ||||||||
Features of HULK Metal Wire Loop Box:
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Design Principles of HULK Metal Wire Loop Box:
l The capacities presented in the tables below are calculated for static loads. Our wire rope loops are not designed to be used for dynamic loading or for lifting. For the capacities to be achieved, there should be no cracks or deformations in the joints.
l The capacities of the wire rope loops are calculated for a joint as presented in the diagram with seam thickness and reinforcement as outlined in the following sections. The steel boxes and the seam must be fully filled with concrete.
l The capacities given are the resistances in the ultimate limit state, so please compare them to design loads.
l The resistance is defined by the weakest concrete in the joint (element/joint concrete). Resistances are calculated for concrete classes C25/30, C30/37, and C40/50.
Longitudinal Shear Capacity:
Boxes Centre to Centre
Design Value of Longitudinal Shear Resistance, VRd (kN/m)
Standard
HM-A, -B, -C, -D
HM-E
C25/30
C40/50
C25/30
C40/50
250
125
159
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300
117
148
-
-
350
101
128
182
230
400
89
112
163
207
450
79
100
146
184
500
72
91
131
166
550
66
83
120
152
600
60
76
110
139
650
56
71
102
129
700
52
66
95
120
750
49
62
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The resistance is defined by the weakest concrete in the system, either to fill the joint or the concrete used to make the precast element.
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Tensile Capacity of HULK Metal Wire Loop Box:
Capacities are shown here per box.
Box Type
Part No.
Design Value of Tensile Resistance, FRd (kN)
C25/30
C40/50
Standard
HM-A
12.9
12.9
HM-B
HM-C
HM-D
HM-E
23.1
23.1
The resistance is defined by the weakest concrete in the system, either to fill the joint or the concrete used to make the precast element. The distance between wire loop boxes must be as defined later in this section.
Transversal Shear Force:
Capacities are shown here per box.
Box Type
Part No.
Design Value of Horizontal Shear Resistance, NRd (kN)
C25/30
C40/50
Standard
HM-A
4.6
5.8
HM-B
8.2
10.3
HM-C
HM-D
HM-E
The resistance is defined by the weakest concrete in the system, either to fill the joint or the concrete used to make the precast element. The distance between wire loop boxes must be as defined later in this section.
Combined Forces:
For circumstances where there is a combination of forces on the wire loop joints, the following must apply:
VApplied / VRd = FApplied / FRd = NApplied / NRd < = 1
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Installation of HULK Metal Wire Loop Box:
The wall elements must be reinforced according to the wall element design.
Seam Thickness:
The size of the wire rope loops must be chosen according to the thickness of the joint to enable the vertical ribbed steel bar in the joint to pass through the wire rope loops on both sides of the joint.
Box Type
Part No.
Recommended Thickness of Rope Loop Seam (mm)
Standard
HM-A
70-90
HM-B
90-110
HM-C
110-140
HM-D
140-190
HM-E
160-220
Minimum Edge Distance and Spacing:
Centre to center Emin = minimum distance between wire rope loops at the same side of the joint.
Centre to center Cmax = minimum distance between wire rope loops at opposite sides of the joint.
Minimum width Bmin = minimum total wall width.
Box Type
Part No
Centre to Centre Emin
Edge Distance Dmin
Centre to Centre Cmax
Minimum Width Bmin
mm
Standard
HM-A
250
100
20
120
HM-B
HM-C
HM-D
HM-E
350
200
25
150
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Reinforcement of the joint of HULK Metal Wire Loop Box:
When using wire rope loops, a vertical ribbed steel bar must always be installed through the wire loops as shown here.
Box Type
Part No
Recommended thickness of rope loop seam (mm)
Standard
HM-A
12
HM-B
12
HM-C
12
HM-D
12
HM-E
16
Case 1 – Where wire loops are used to transfer forces.
When HM wire rope loops are used to transfer forces in the joint, the anchorage of the wire rope loop must be secured by overlapping the wire rope loop sufficiently with the reinforcement of the concrete element. This should be done according to the engineer’s design depending on your precise arrangement.
Where the wire loop is used in a corner joint a reinforcing bar should be installed into the inner edge of the fold of the RVL wire rope loop, the diameter of this bar should be the same as the reinforcement installed in the joint.
Case 2 – Where HM wire loops are not used to transfer forces.
When wire rope loops are used to limit cracking of the seam or to tie elements together without defining the required force, additional reinforcement in the wall is recommended as shown here, including 2 No 10mm diameter additional bars in each piece.
Attachment to the formwork:
The wire rope loop box must be attached securely so it cannot move during the casting of the concrete. At the wire rope loop, the concrete must be compacted carefully as the loop cannot be vibrated. The wire rope loop boxes may be fastened to formwork with nails or by magnets.
The part of the wire rope that enters the concrete element is installed amidst the reinforcement and does not need to be tied to the reinforcement.
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Procurement Process
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01In-depth understanding of your requirement.
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02In-depth understanding of your requirement.
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03In-depth understanding of your requirement.
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04In-depth understanding of your requirement.
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05In-depth understanding of your requirement.
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09In-depth understanding of your requirement.
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08In-depth understanding of your requirement.
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07In-depth understanding of your requirement.
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06In-depth understanding of your requirement.
OtherLifting Anchors You Might Want to Know
Besides wire loop boxes, we also provide Lifting Clutch, Spread Anchors, Spherical Head Lifting Anchors, Lifting Sockets, and Recess Formers. You can click on the corresponding picture for details. We will provide you with a full range of production services, and you can rest assured to place your order with us.
You Can Know About Wire Loop Box in Blogs
Here is the introduction, production, and quality inspection of the wire loop box that we can organize, as well as some sharing from customers and details of our delivery. You can message us to share or get some content about wire loop boxes.
Reviews
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Diego Nanini
Earnest is very responsive. The product delivered on time and received in good condition.