ASTM C1314 Masonry prism testing 1 - Eng-Tips
2008年10月1日 · The hollow prism is a companion to the concrete cylinder since it is a measure of the materials in a structural element(a wall). Both of these tests are compressive tests designed to test the basic materials. Adding grout is necessary to transfer verticla/shear loads from the wall to the reinforcement that is used as necessary.
f'm values in ACI 530-05/ASCE 5-05/TMS 402-05 - Eng-Tips
2005年12月19日 · Keep in mind the various materials (brick, CMUs, mortar and grout) are tested separately using different shapes and/or proportions and formations and do not relate to each other directly. The over-riding item the the f'm of the masonry units when tested in hollow prisms.
Reinforced Masonry - Structural engineering general discussion
2007年3月6日 · By designing the element as an unreinforced element, the axial load capacity decreases significantly as the capacity reduction factor is 0.45 for unreinforced masonry as opposed to 0.75 for reinforced masonry. The most common reinforcement for concrete masonry walls is a bar in the middle, spaced say 200 to 1200mm etc.
Wood Supporting Masonry or concrete? 1 - Eng-Tips
2001年3月6日 · Section 2304.12(IBC 2000) and Section 2307(UBC 1997) says: "Wood members shall not be used to permanently support the dead load of any masonry or concrete." Situation: 3" concrete floor slab. What is the reason the building code …
Connections to Brick Walls - Structural engineering general
2007年12月23日 · Multi-wythe (multi-leaf) walls are common, but the Flemish bond (or similar) is usually recognized as a bonded wall. Multi-wythe walls can be classified as solid masonry walls depending on the construction and details. In some areas/juridictoions, a full collar joint and some light horizontal reinforcement qualifies as a solid bonded masonry wall.
Historic Brick Durability 6 - Eng-Tips
2016年8月14日 · Most second-hand masonry units come from the demolition of old buildings. Masonry units manufactured in the past do not generally compare with the quality of masonry made by modern manufacturing methods under controlled conditions. Therefore, designers should expect salvaged masonry units to have lower strength and durability than new units.
Masonry Waterproofer - Structural engineering general discussion …
2021年8月26日 · You cannot get any effective waterproofing materials for masonry that are not a membrane. For nearly all masonry work, the best you can get is a repellent... Prosoco is one of the best and often spec'd for historic brickwork and stonework; it lasts for several years (a decade or maybe more). If you need it waterproofed, you need a membrane.
Brick Shelf Angles - Structural engineering general discussion
2009年8月18日 · Grimm and Yura, "Shelf Angles for Masonry Veneer", Journal of Structural Engineering, Vol. 115, No. 3, March 1989. Parker, "Façade Attachments to Steel Framed Buildings", AISC Steel Design Guide 22, AISC, 2008. Technical Notes on Brick Construction, Brick Industry Association,
Allowable deflections for Residential Floor Beams - Eng-Tips
2009年4月27日 · IBC 2003 does specify L/600 in Paragraph 1405.9.1.1, Interior Masonry Veneers. For the most part, IBC just refers to ACI 530 for details (IBC Paragraph 1604.3.4, for example). Like so many other parts of most building codes and reference standards, the requirements are really just adopted from established industry standard practice (such as BIA ...
Reinforcing Existing CMU Wall 1 - Eng-Tips
2011年7月27日 · Normally, the core spaces can be filled properly if a face shell is removed and a proper masonry gout (8"-11" slump) is pumped into the wall, topped off after consolidation and then mortar to packed into the top course. Unfortunately, many adjacent cores will be filled since normally, the cores are not totally sealed when common units are used.